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authorLukas Bulwahn <lukas.bulwahn@gmail.com>2022-07-07 14:54:42 +0300
committerDave Hansen <dave.hansen@linux.intel.com>2022-07-07 19:51:36 +0300
commit9de76f41ea2188f2784f48352f9278819d249afc (patch)
tree46ae0319bd2d3de02282377a5efaafd8d5023109 /arch/x86/mm
parent018ab4fabddd94f1c96f3b59e180691b9e88d5d8 (diff)
downloadlinux-9de76f41ea2188f2784f48352f9278819d249afc.tar.xz
x86/mm: Refer to the intended config STRICT_DEVMEM in a comment
Commit a4866aa81251 ("mm: Tighten x86 /dev/mem with zeroing reads") adds a comment to the function devmem_is_allowed() referring to a non-existing config STRICT_IOMEM, whereas the comment very likely intended to refer to the config STRICT_DEVMEM, as the commit adds some behavior for the config STRICT_DEVMEM. Most of the initial analysis was actually done by Dave Hansen in the email thread below (see Link). Refer to the intended and existing config STRICT_DEVMEM. Suggested-by: Dave Hansen <dave.hansen@intel.com> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/r/f9074e8d-9314-9d7d-7bf5-5b5538c8be8d@intel.com/ Link: https://lkml.kernel.org/r/20220707115442.21107-1-lukas.bulwahn@gmail.com
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/init.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index d8cfce221275..5d747a1923cb 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -846,7 +846,7 @@ int devmem_is_allowed(unsigned long pagenr)
/*
* This must follow RAM test, since System RAM is considered a
- * restricted resource under CONFIG_STRICT_IOMEM.
+ * restricted resource under CONFIG_STRICT_DEVMEM.
*/
if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) {
/* Low 1MB bypasses iomem restrictions. */