[nrf fromlist] logging: Fix casting related C++ warnings

Fixed C++ warnings coming from implicit casting.

Upstream PR: zephyrproject-rtos/zephyr#34516

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
(cherry picked from commit 0d6f038d77105695c006728f5dcf40229247464c)
Signed-off-by: Trond Einar Snekvik <Trond.Einar.Snekvik@nordicsemi.no>

include/logging/log_msg2.h

@@ -186,13 +186,12 @@ enum z_log_msg2_mode {
 /* Messages are aligned to alignment required by cbprintf package. */
 #define Z_LOG_MSG2_ALIGNMENT CBPRINTF_PACKAGE_ALIGNMENT
 
-
 #if CONFIG_LOG2_USE_VLA
 #define Z_LOG_MSG2_ON_STACK_ALLOC(ptr, len) \
 	long long _ll_buf[ceiling_fraction(len, sizeof(long long))]; \
 	long double _ld_buf[ceiling_fraction(len, sizeof(long double))]; \
 	ptr = (sizeof(long double) == Z_LOG_MSG2_ALIGNMENT) ? \
-			(void *)_ld_buf : (void *)_ll_buf; \
+			(struct log_msg2 *)_ld_buf : (struct log_msg2 *)_ll_buf; \
 	if (IS_ENABLED(CONFIG_LOG_TEST_CLEAR_MESSAGE_SPACE)) { \
 		/* During test fill with 0's to simplify message comparison */ \
 		memset(ptr, 0, len); \
@@ -215,15 +214,17 @@ enum z_log_msg2_mode {
 	long double _ld_buf128[128 / sizeof(long double)]; \
 	long double _ld_buf256[256 / sizeof(long double)]; \
 	if (sizeof(long double) == Z_LOG_MSG2_ALIGNMENT) { \
-		ptr = (len > 128) ? (void *)_ld_buf256 : \
-			((len > 64) ? (void *)_ld_buf128 : \
-			((len > 48) ? (void *)_ld_buf64 : \
-			((len > 32) ? (void *)_ld_buf48 : (void *)_ld_buf32)));\
+		ptr = (len > 128) ? (struct log_msg2 *)_ld_buf256 : \
+			((len > 64) ? (struct log_msg2 *)_ld_buf128 : \
+			((len > 48) ? (struct log_msg2 *)_ld_buf64 : \
+			((len > 32) ? (struct log_msg2 *)_ld_buf48 : \
+				      (struct log_msg2 *)_ld_buf32)));\
 	} else { \
-		ptr = (len > 128) ? (void *)_ll_buf256 : \
-			((len > 64) ? (void *)_ll_buf128 : \
-			((len > 48) ? (void *)_ll_buf64 : \
-			((len > 32) ? (void *)_ll_buf48 : (void *)_ll_buf32)));\
+		ptr = (len > 128) ? (struct log_msg2 *)_ll_buf256 : \
+			((len > 64) ? (struct log_msg2 *)_ll_buf128 : \
+			((len > 48) ? (struct log_msg2 *)_ll_buf64 : \
+			((len > 32) ? (struct log_msg2 *)_ll_buf48 : \
+				      (struct log_msg2 *)_ll_buf32)));\
 	} \
 	if (IS_ENABLED(CONFIG_LOG_TEST_CLEAR_MESSAGE_SPACE)) { \
 		/* During test fill with 0's to simplify message comparison */ \
@@ -254,7 +255,7 @@ enum z_log_msg2_mode {
 	} \
 	struct log_msg2_desc _desc = \
 		     Z_LOG_MSG_DESC_INITIALIZER(_domain_id, _level, \
-			   _plen, _dlen); \
+			   (uint32_t)_plen, _dlen); \
 	z_log_msg2_finalize(_msg, _source, _desc, _data); \
 } while (0)
 
@@ -276,7 +277,7 @@ do { \
 	} \
 	struct log_msg2_desc _desc = \
 		Z_LOG_MSG_DESC_INITIALIZER(_domain_id, _level, \
-					   _plen, _dlen); \
+					   (uint32_t)_plen, _dlen); \
 	LOG_MSG2_DBG("creating message on stack: package len: %d, data len: %d\n", \
 			_plen, (int)(_dlen)); \
 	z_log_msg2_static_create((void *)_source, _desc, _msg->data, _data); \
@@ -289,7 +290,7 @@ do { \
 	size_t _msg_wlen = Z_LOG_MSG2_ALIGNED_WLEN(_plen, 0); \
 	struct log_msg2 *_msg = z_log_msg2_alloc(_msg_wlen); \
 	struct log_msg2_desc _desc = \
-		Z_LOG_MSG_DESC_INITIALIZER(_domain_id, _level, _plen, 0); \
+		Z_LOG_MSG_DESC_INITIALIZER(_domain_id, _level, (uint32_t)_plen, 0); \
 	LOG_MSG2_DBG("creating message zero copy: package len: %d, msg: %p\n", \
 			_plen, _msg); \
 	if (_msg) { \
@@ -437,11 +438,9 @@ do { \
 
 #define Z_LOG_MSG2_CREATE(_try_0cpy, _mode,  _domain_id, _source,\
 			  _level, _data, _dlen, ...) \
-do { \
 	Z_LOG_MSG2_CREATE2(_try_0cpy, _mode, UTIL_CAT(Z_LOG_FUNC_PREFIX_##_level), \
 			   _domain_id, _source, _level, _data, _dlen, \
-			   Z_LOG_STR(_level, __VA_ARGS__));\
-} while (0)
+			   Z_LOG_STR(_level, __VA_ARGS__))
 
 #define Z_TRACING_LOG_HDR_INIT(name, id) \
 	struct log_msg2_trace name = { \