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authorAndrey Konovalov <andreyknvl@google.com>2022-09-06 00:05:37 +0300
committerAndrew Morton <akpm@linux-foundation.org>2022-10-04 00:03:00 +0300
commit2c9fb1fd1dd0b17cf8f48935a9c3ecea066f10e8 (patch)
tree9a8b7ed400de2c7dca709af5ceec08b198f8fb15 /mm/kasan
parent9ef08d265e3f02b3266a46f684de5741724bd7f8 (diff)
downloadlinux-2c9fb1fd1dd0b17cf8f48935a9c3ecea066f10e8.tar.xz
kasan: use virt_addr_valid in kasan_addr_to_page/slab
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>
Diffstat (limited to 'mm/kasan')
-rw-r--r--mm/kasan/report.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 83f420a28c0b..570f9419b90c 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -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;
}