From d47b5a6d233196ccbdc6791e99d6a70cc2938968 Mon Sep 17 00:00:00 2001 From: Liviu Dudau Date: Tue, 9 May 2023 18:29:21 +0100 Subject: [PATCH] mips: Move initrd_start check after initrd address sanitisation. [ Upstream commit 4897a898a216058dec55e5e5902534e6e224fcdf ] PAGE_OFFSET is technically a virtual address so when checking the value of initrd_start against it we should make sure that it has been sanitised from the values passed by the bootloader. Without this change, even with a bootloader that passes correct addresses for an initrd, we are failing to load it on MT7621 boards, for example. Signed-off-by: Liviu Dudau Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin --- arch/mips/kernel/setup.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 9d11f68a9e8bb4..b49ad569e46908 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -154,10 +154,6 @@ static unsigned long __init init_initrd(void) pr_err("initrd start must be page aligned\n"); goto disable; } - if (initrd_start < PAGE_OFFSET) { - pr_err("initrd start < PAGE_OFFSET\n"); - goto disable; - } /* * Sanitize initrd addresses. For example firmware @@ -170,6 +166,11 @@ static unsigned long __init init_initrd(void) initrd_end = (unsigned long)__va(end); initrd_start = (unsigned long)__va(__pa(initrd_start)); + if (initrd_start < PAGE_OFFSET) { + pr_err("initrd start < PAGE_OFFSET\n"); + goto disable; + } + ROOT_DEV = Root_RAM0; return PFN_UP(end); disable: