korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-28 22:54:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

kasan: use virt_addr_valid in kasan_addr_to_page/slab

Browse Source 
Instead of open-coding the validity checks for addr in
kasan_addr_to_page/slab(), use the virt_addr_valid() helper.

Link: https://lkml.kernel.org/r/c22a4850d74d7430f8a6c08216fd55c2860a2b9e.1662411799.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Peter Collingbourne <pcc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Andrey Konovalov 2022-09-05 23:05:37 +02:00 committed by Andrew Morton
parent 9ef08d265e
commit 2c9fb1fd1d
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
mm/kasan/report.c
View File

@ -208,14 +208,14 @@ static void print_track(struct kasan_track *track, const char *prefix)
struct page *kasan_addr_to_page(const void *addr)
{
if ((addr >= (void *)PAGE_OFFSET) && (addr < high_memory))
if (virt_addr_valid(addr))
return virt_to_head_page(addr);
return NULL;
}
struct slab *kasan_addr_to_slab(const void *addr)
{
if ((addr >= (void *)PAGE_OFFSET) && (addr < high_memory))
if (virt_addr_valid(addr))
return virt_to_slab(addr);
return NULL;
}