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Surface Pro 3 Type Cover from Ubuntu Forums #129

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chemelnucfin
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Surface Pro 3 Type Cover that works with Ubuntu (and possibly Arch) from this thread. Both trackpad and keyboard work after compiling my own kernel.
http://ubuntuforums.org/showthread.php?t=2231207&page=2&s=44910e0c56047e4f93dfd9fea58121ef
This is the first time I'm submitting a pull request to the linux kernel, please point out any mistakes if I made any.

@exec
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exec commented Oct 29, 2014

Worked for me as well, thank you @chemelnucfin

@jnavila
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jnavila commented Oct 29, 2014

Not surprised that your PR is numbered only 129?

For more information, please refer to https://github.com/torvalds/linux/blob/master/Documentation/HOWTO

Also you should address to the subsystem mailing list.

krzk pushed a commit to krzk/linux that referenced this pull request May 2, 2015
…heckpatch-fixes

ERROR: code indent should use tabs where possible
torvalds#120: FILE: include/linux/capability.h:220:
+        return true;$

WARNING: please, no spaces at the start of a line
torvalds#120: FILE: include/linux/capability.h:220:
+        return true;$

ERROR: code indent should use tabs where possible
torvalds#125: FILE: include/linux/capability.h:225:
+        return true;$

WARNING: please, no spaces at the start of a line
torvalds#125: FILE: include/linux/capability.h:225:
+        return true;$

ERROR: code indent should use tabs where possible
torvalds#129: FILE: include/linux/capability.h:229:
+        return true;$

WARNING: please, no spaces at the start of a line
torvalds#129: FILE: include/linux/capability.h:229:
+        return true;$

ERROR: code indent should use tabs where possible
torvalds#134: FILE: include/linux/capability.h:234:
+        return true;$

WARNING: please, no spaces at the start of a line
torvalds#134: FILE: include/linux/capability.h:234:
+        return true;$

ERROR: code indent should use tabs where possible
torvalds#170: FILE: include/linux/cred.h:79:
+        return 1;$

WARNING: please, no spaces at the start of a line
torvalds#170: FILE: include/linux/cred.h:79:
+        return 1;$

ERROR: code indent should use tabs where possible
torvalds#174: FILE: include/linux/cred.h:83:
+        return 1;$

WARNING: please, no spaces at the start of a line
torvalds#174: FILE: include/linux/cred.h:83:
+        return 1;$

total: 6 errors, 6 warnings, 310 lines checked

NOTE: whitespace errors detected, you may wish to use scripts/cleanpatch or
      scripts/cleanfile

./patches/kernel-conditionally-support-non-root-users-groups-and-capabilities.patch has style problems, please review.

If any of these errors are false positives, please report
them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Iulia Manda <iulia.manda21@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Nov 30, 2015
On Mon, Nov 30, 2015 at 10:20:49AM +0100, Dmitry Vyukov wrote:
> =============================================
> [ INFO: possible recursive locking detected ]
> 4.4.0-rc1+ torvalds#129 Not tainted
> ---------------------------------------------
> a.out/6283 is trying to acquire lock:
>  (&ctx->lock){-.....}, at: [<ffffffff815072ce>]
> __perf_event_period+0x8e/0x4b0 kernel/events/core.c:4156
>
> but task is already holding lock:
>  (&ctx->lock){-.....}, at: [<     inline     >] perf_event_period
> kernel/events/core.c:4212
>  (&ctx->lock){-.....}, at: [<     inline     >] _perf_ioctl
> kernel/events/core.c:4266
>  (&ctx->lock){-.....}, at: [<ffffffff8152331c>] perf_ioctl+0x7bc/0xcc0
> kernel/events/core.c:4320
>

Indeed so. I suppose the below should fix this, I'll go try in a bit.
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Dec 18, 2015
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 1, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 6, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 13, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 14, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 15, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 21, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 22, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Jan 28, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Feb 1, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Feb 4, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Feb 8, 2016
When enabling stack trace via "echo 1 > /proc/sys/kernel/stack_tracer_enabled",
the below KASAN warning is triggered:

BUG: KASAN: stack-out-of-bounds in check_stack+0x344/0x848 at addr ffffffc0689ebab8
Read of size 8 by task ksoftirqd/4/29
page:ffffffbdc3a27ac0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x0()
page dumped because: kasan: bad access detected
CPU: 4 PID: 29 Comm: ksoftirqd/4 Not tainted 4.5.0-rc1 torvalds#129
Hardware name: Freescale Layerscape 2085a RDB Board (DT)
Call trace:
[<ffffffc000091300>] dump_backtrace+0x0/0x3a0
[<ffffffc0000916c4>] show_stack+0x24/0x30
[<ffffffc0009bbd78>] dump_stack+0xd8/0x168
[<ffffffc000420bb0>] kasan_report_error+0x6a0/0x920
[<ffffffc000421688>] kasan_report+0x70/0xb8
[<ffffffc00041f7f0>] __asan_load8+0x60/0x78
[<ffffffc0002e05c4>] check_stack+0x344/0x848
[<ffffffc0002e0c8c>] stack_trace_call+0x1c4/0x370
[<ffffffc0002af558>] ftrace_ops_no_ops+0x2c0/0x590
[<ffffffc00009f25c>] ftrace_graph_call+0x0/0x14
[<ffffffc0000881bc>] fpsimd_thread_switch+0x24/0x1e8
[<ffffffc000089864>] __switch_to+0x34/0x218
[<ffffffc0011e089c>] __schedule+0x3ac/0x15b8
[<ffffffc0011e1f6c>] schedule+0x5c/0x178
[<ffffffc0001632a8>] smpboot_thread_fn+0x350/0x960
[<ffffffc00015b518>] kthread+0x1d8/0x2b0
[<ffffffc0000874d0>] ret_from_fork+0x10/0x40
Memory state around the buggy address:
 ffffffc0689eb980: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f4 f4 f4
 ffffffc0689eba00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffc0689eba80: 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 00
                                        ^
 ffffffc0689ebb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffffc0689ebb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

The stacker tracer traverses the whole kernel stack when saving the max stack
trace. It may touch the stack red zones to cause the warning. So, just disable
the instrumentation to silence the warning.

Signed-off-by: Yang Shi <yang.shi@linaro.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Feb 12, 2016
When enabling stack trace via "echo 1 > /proc/sys/kernel/stack_tracer_enabled",
the below KASAN warning is triggered:

BUG: KASAN: stack-out-of-bounds in check_stack+0x344/0x848 at addr ffffffc0689ebab8
Read of size 8 by task ksoftirqd/4/29
page:ffffffbdc3a27ac0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x0()
page dumped because: kasan: bad access detected
CPU: 4 PID: 29 Comm: ksoftirqd/4 Not tainted 4.5.0-rc1 torvalds#129
Hardware name: Freescale Layerscape 2085a RDB Board (DT)
Call trace:
[<ffffffc000091300>] dump_backtrace+0x0/0x3a0
[<ffffffc0000916c4>] show_stack+0x24/0x30
[<ffffffc0009bbd78>] dump_stack+0xd8/0x168
[<ffffffc000420bb0>] kasan_report_error+0x6a0/0x920
[<ffffffc000421688>] kasan_report+0x70/0xb8
[<ffffffc00041f7f0>] __asan_load8+0x60/0x78
[<ffffffc0002e05c4>] check_stack+0x344/0x848
[<ffffffc0002e0c8c>] stack_trace_call+0x1c4/0x370
[<ffffffc0002af558>] ftrace_ops_no_ops+0x2c0/0x590
[<ffffffc00009f25c>] ftrace_graph_call+0x0/0x14
[<ffffffc0000881bc>] fpsimd_thread_switch+0x24/0x1e8
[<ffffffc000089864>] __switch_to+0x34/0x218
[<ffffffc0011e089c>] __schedule+0x3ac/0x15b8
[<ffffffc0011e1f6c>] schedule+0x5c/0x178
[<ffffffc0001632a8>] smpboot_thread_fn+0x350/0x960
[<ffffffc00015b518>] kthread+0x1d8/0x2b0
[<ffffffc0000874d0>] ret_from_fork+0x10/0x40
Memory state around the buggy address:
 ffffffc0689eb980: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f4 f4 f4
 ffffffc0689eba00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffc0689eba80: 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 00
                                        ^
 ffffffc0689ebb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffffc0689ebb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

The stacker tracer traverses the whole kernel stack when saving the max stack
trace. It may touch the stack red zones to cause the warning. So, just disable
the instrumentation to silence the warning.

Signed-off-by: Yang Shi <yang.shi@linaro.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Feb 22, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
torvalds pushed a commit that referenced this pull request Feb 22, 2016
When enabling stack trace via "echo 1 > /proc/sys/kernel/stack_tracer_enabled",
the below KASAN warning is triggered:

BUG: KASAN: stack-out-of-bounds in check_stack+0x344/0x848 at addr ffffffc0689ebab8
Read of size 8 by task ksoftirqd/4/29
page:ffffffbdc3a27ac0 count:0 mapcount:0 mapping:          (null) index:0x0
flags: 0x0()
page dumped because: kasan: bad access detected
CPU: 4 PID: 29 Comm: ksoftirqd/4 Not tainted 4.5.0-rc1 #129
Hardware name: Freescale Layerscape 2085a RDB Board (DT)
Call trace:
[<ffffffc000091300>] dump_backtrace+0x0/0x3a0
[<ffffffc0000916c4>] show_stack+0x24/0x30
[<ffffffc0009bbd78>] dump_stack+0xd8/0x168
[<ffffffc000420bb0>] kasan_report_error+0x6a0/0x920
[<ffffffc000421688>] kasan_report+0x70/0xb8
[<ffffffc00041f7f0>] __asan_load8+0x60/0x78
[<ffffffc0002e05c4>] check_stack+0x344/0x848
[<ffffffc0002e0c8c>] stack_trace_call+0x1c4/0x370
[<ffffffc0002af558>] ftrace_ops_no_ops+0x2c0/0x590
[<ffffffc00009f25c>] ftrace_graph_call+0x0/0x14
[<ffffffc0000881bc>] fpsimd_thread_switch+0x24/0x1e8
[<ffffffc000089864>] __switch_to+0x34/0x218
[<ffffffc0011e089c>] __schedule+0x3ac/0x15b8
[<ffffffc0011e1f6c>] schedule+0x5c/0x178
[<ffffffc0001632a8>] smpboot_thread_fn+0x350/0x960
[<ffffffc00015b518>] kthread+0x1d8/0x2b0
[<ffffffc0000874d0>] ret_from_fork+0x10/0x40
Memory state around the buggy address:
 ffffffc0689eb980: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f4 f4 f4
 ffffffc0689eba00: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffc0689eba80: 00 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 00
                                        ^
 ffffffc0689ebb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffffc0689ebb80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

The stacker tracer traverses the whole kernel stack when saving the max stack
trace. It may touch the stack red zones to cause the warning. So, just disable
the instrumentation to silence the warning.

Link: http://lkml.kernel.org/r/1455309960-18930-1-git-send-email-yang.shi@linaro.org

Signed-off-by: Yang Shi <yang.shi@linaro.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Feb 29, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Feb 29, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Mar 9, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Mar 11, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Mar 16, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Mar 17, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
0day-ci pushed a commit to 0day-ci/linux that referenced this pull request Mar 18, 2016
Cc: David Rientjes <rientjes@google.com>

WARNING: line over 80 characters
torvalds#99: FILE: mm/page_alloc.c:2965:
+ * zone list (with a backoff mechanism which is a function of no_progress_loops).

WARNING: line over 80 characters
torvalds#129: FILE: mm/page_alloc.c:2995:
+	 * Keep reclaiming pages while there is a chance this will lead somewhere.

WARNING: line over 80 characters
torvalds#134: FILE: mm/page_alloc.c:3000:
+	for_each_zone_zonelist_nodemask(zone, z, ac->zonelist, ac->high_zoneidx, ac->nodemask) {

WARNING: line over 80 characters
torvalds#138: FILE: mm/page_alloc.c:3004:
+		available -= DIV_ROUND_UP(no_progress_loops * available, MAX_RECLAIM_RETRIES);

WARNING: line over 80 characters
torvalds#142: FILE: mm/page_alloc.c:3008:
+		 * Would the allocation succeed if we reclaimed the whole available?

WARNING: line over 80 characters
torvalds#146: FILE: mm/page_alloc.c:3012:
+			/* Wait for some write requests to complete then retry */

total: 0 errors, 6 warnings, 202 lines checked

./patches/mm-oom-rework-oom-detection.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: David Rientjes <rientjes@google.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
pv added a commit to pv/linux that referenced this pull request Jul 15, 2023
LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Jul 24, 2023
LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Aug 11, 2023
LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Kaz205 pushed a commit to Kaz205/linux that referenced this pull request Sep 11, 2023
[ Upstream commit 7f74563 ]

LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
mj22226 pushed a commit to mj22226/linux that referenced this pull request Sep 11, 2023
[ Upstream commit 7f74563 ]

LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
intersectRaven pushed a commit to intersectRaven/linux that referenced this pull request Sep 13, 2023
[ Upstream commit 7f74563 ]

LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
hjl-tools pushed a commit to hjl-tools/linux that referenced this pull request Sep 13, 2023
[ Upstream commit 7f74563 ]

LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Joshua-Riek pushed a commit to Joshua-Riek/linux that referenced this pull request Oct 24, 2023
BugLink: https://bugs.launchpad.net/bugs/2035588

[ Upstream commit 7f74563 ]

LE Create CIS command shall not be sent before all CIS Established
events from its previous invocation have been processed. Currently it is
sent via hci_sync but that only waits for the first event, but there can
be multiple.

Make it wait for all events, and simplify the CIS creation as follows:

Add new flag HCI_CONN_CREATE_CIS, which is set if Create CIS has been
sent for the connection but it is not yet completed.

Make BT_CONNECT state to mean the connection wants Create CIS.

On events after which new Create CIS may need to be sent, send it if
possible and some connections need it. These events are:
hci_connect_cis, iso_connect_cfm, hci_cs_le_create_cis,
hci_le_cis_estabilished_evt.

The Create CIS status/completion events shall queue new Create CIS only
if at least one of the connections transitions away from BT_CONNECT, so
that we don't loop if controller is sending bogus events.

This fixes sending multiple CIS Create for the same CIS in the
"ISO AC 6(i) - Success" BlueZ test case:

< HCI Command: LE Create Co.. (0x08|0x0064) plen 9  torvalds#129 [hci0]
        Number of CIS: 2
        CIS Handle: 257
        ACL Handle: 42
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#130 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#131 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 257
        ...
< HCI Command: LE Setup Is.. (0x08|0x006e) plen 13  torvalds#132 [hci0]
        ...
> HCI Event: Command Complete (0x0e) plen 6         torvalds#133 [hci0]
      LE Setup Isochronous Data Path (0x08|0x006e) ncmd 1
        ...
< HCI Command: LE Create Co.. (0x08|0x0064) plen 5  torvalds#134 [hci0]
        Number of CIS: 1
        CIS Handle: 258
        ACL Handle: 42
> HCI Event: Command Status (0x0f) plen 4           torvalds#135 [hci0]
      LE Create Connected Isochronous Stream (0x08|0x0064) ncmd 1
        Status: ACL Connection Already Exists (0x0b)
> HCI Event: LE Meta Event (0x3e) plen 29           torvalds#136 [hci0]
      LE Connected Isochronous Stream Established (0x19)
        Status: Success (0x00)
        Connection Handle: 258
        ...

Fixes: c09b80b ("Bluetooth: hci_conn: Fix not waiting for HCI_EVT_LE_CIS_ESTABLISHED")
Signed-off-by: Pauli Virtanen <pav@iki.fi>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
nathanlynch added a commit to nathanlynch/linux that referenced this pull request Oct 27, 2023
This reverts commit 0298609 due to a
boot-time oops:

BUG: Kernel NULL pointer dereference on read at 0x00000018
Faulting instruction address: 0xc00000000004223c
Oops: Kernel access of bad area, sig: 7 [#1]
LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Tainted: G        W          6.6.0-rc2+ torvalds#129
NIP:  c00000000004223c LR: c000000000042238 CTR: 0000000000000000
REGS: c000000002c579d0 TRAP: 0300   Tainted: G        W           (6.6.0-rc2+)
MSR:  8000000000001033 <SF,ME,IR,DR,RI,LE>  CR: 28000284  XER: 00000000
CFAR: c000000000042008 DAR: 0000000000000018 DSISR: 00080000 IRQMASK: 3
GPR00: c000000000042238 c000000002c57c70 c000000001f5eb00 0000000000000000
GPR04: c00000000294cd08 0000000000000002 c000000002c579b4 0000000000000000
GPR08: 0000000000000000 0000000000000002 c000000002c0da80 0000000000000000
GPR12: 0000000000000000 c000000005e40000 0000000000000000 0000000002097728
GPR16: 0000000000001111 0000000000000001 0000000002097b80 00000000020975b8
GPR20: 00000000020976f0 00000000020974e8 00000000030feb00 00000000030feb00
GPR24: 0000000000002008 0000000000000000 0000000000000001 c0000000028f3d70
GPR28: 0000000002d31020 c000000002cac268 c000000002d31020 0000000000000000
NIP [c00000000004223c] do_enter_rtas+0xcc/0x460
LR [c000000000042238] do_enter_rtas+0xc8/0x460
Call Trace:
[c000000002c57c70] [c000000000042238] do_enter_rtas+0xc8/0x460 (unreliable)
[c000000002c57cc0] [c000000000042e34] rtas_call+0x434/0x490
[c000000002c57d20] [c0000000000fd584] papr_sysparm_get+0xe4/0x230
[c000000002c57db0] [c0000000020267d0] pSeries_probe+0x2f0/0x5fc
[c000000002c57e80] [c00000000200a318] setup_arch+0x11c/0x524
[c000000002c57f10] [c00000000200418c] start_kernel+0xcc/0xc1c
[c000000002c57fe0] [c00000000000e788] start_here_common+0x1c/0x20
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Dec 17, 2023
…egdef.h

The script checkpatch.pl reported spelling error
in rtl871x_mp_phy_regdef.h as below:

'''
WARNING: 'Tranceiver' may be misspelled - perhaps 'Transceiver'?
torvalds#129:
#define rFPGA0_XA_LSSIReadBack          0x8a0   /* Tranceiver LSSI Readback */
                                                   ^^^^^^^^^^
'''

This patch corrects a spelling error,
changing "Tranceiver" to "Transceiver."

Signed-off-by: Dipendra Khadka <kdipendra88@gmail.com>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Dec 18, 2023
…egdef.h

The script checkpatch.pl reported spelling error
in rtl871x_mp_phy_regdef.h as below:

'''
WARNING: 'Tranceiver' may be misspelled - perhaps 'Transceiver'?
torvalds#129:
#define rFPGA0_XA_LSSIReadBack          0x8a0   /* Tranceiver LSSI Readback */
                                                   ^^^^^^^^^^
'''

This patch corrects a spelling error,
changing "Tranceiver" to "Transceiver."

Signed-off-by: Dipendra Khadka <kdipendra88@gmail.com>
Link: https://lore.kernel.org/r/20231217165444.448133-1-kdipendra88@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
MingcongBai pushed a commit to AOSC-Tracking/linux that referenced this pull request Dec 24, 2023
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
shikongzhineng pushed a commit to shikongzhineng/linux that referenced this pull request Dec 28, 2023
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
yetist pushed a commit to loongarchlinux/linux that referenced this pull request Jan 9, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Jan 9, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
arinc9 pushed a commit to arinc9/linux that referenced this pull request Jan 10, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
shikongzhineng pushed a commit to shikongzhineng/linux that referenced this pull request Jan 10, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Gelbpunkt pushed a commit to sm8450-mainline/linux that referenced this pull request Jan 11, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Jan 12, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
cthbleachbit pushed a commit to AOSC-Tracking/linux that referenced this pull request Jan 17, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
cthbleachbit pushed a commit to AOSC-Tracking/linux that referenced this pull request Jan 17, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
roxell pushed a commit to roxell/linux that referenced this pull request Jan 17, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
cthbleachbit pushed a commit to AOSC-Tracking/linux that referenced this pull request Jan 17, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
intel-lab-lkp pushed a commit to intel-lab-lkp/linux that referenced this pull request Jan 18, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
cthbleachbit pushed a commit to AOSC-Tracking/linux that referenced this pull request Jan 28, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
shikongzhineng pushed a commit to shikongzhineng/linux that referenced this pull request Feb 7, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
cthbleachbit pushed a commit to AOSC-Tracking/linux that referenced this pull request Feb 17, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
yetist pushed a commit to loongarchlinux/linux that referenced this pull request Feb 29, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
shikongzhineng pushed a commit to shikongzhineng/linux that referenced this pull request Mar 17, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
shipujin pushed a commit to shipujin/linux that referenced this pull request Jul 24, 2024
Like commit 1cf3bfc ("bpf: Support 64-bit pointers to kfuncs")
for s390x, add support for 64-bit pointers to kfuncs for LoongArch.
Since the infrastructure is already implemented in BPF core, the only
thing need to be done is to override bpf_jit_supports_far_kfunc_call().

Before this change, several test_verifier tests failed:

  # ./test_verifier | grep # | grep FAIL
  torvalds#119/p calls: invalid kfunc call: ptr_to_mem to struct with non-scalar FAIL
  torvalds#120/p calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4 FAIL
  torvalds#121/p calls: invalid kfunc call: ptr_to_mem to struct with FAM FAIL
  torvalds#122/p calls: invalid kfunc call: reg->type != PTR_TO_CTX FAIL
  torvalds#123/p calls: invalid kfunc call: void * not allowed in func proto without mem size arg FAIL
  torvalds#124/p calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX FAIL
  torvalds#125/p calls: invalid kfunc call: reg->off must be zero when passed to release kfunc FAIL
  torvalds#126/p calls: invalid kfunc call: don't match first member type when passed to release kfunc FAIL
  torvalds#127/p calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset FAIL
  torvalds#128/p calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset FAIL
  torvalds#129/p calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#130/p calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID FAIL
  torvalds#486/p map_kptr: ref: reference state created and released on xchg FAIL

This is because the kfuncs in the loaded module are far away from
__bpf_call_base:

  ffff800002009440 t bpf_kfunc_call_test_fail1    [bpf_testmod]
  9000000002e128d8 T __bpf_call_base

The offset relative to __bpf_call_base does NOT fit in s32, which breaks
the assumption in BPF core. Enable bpf_jit_supports_far_kfunc_call() lifts
this limit.

Note that to reproduce the above result, tools/testing/selftests/bpf/config
should be applied, and run the test with JIT enabled, unpriv BPF enabled.

With this change, the test_verifier tests now all passed:

  # ./test_verifier
  ...
  Summary: 777 PASSED, 0 SKIPPED, 0 FAILED

Tested-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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3 participants