From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Instead of open-coding the validity checks for addr in
kasan_addr_to_page/slab(), use the virt_addr_valid() helper.
Reviewed-by: Marco Elver <elver@xxxxxxxxxx>
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
---
Changes v1->v2:
- This is a new patch.
---
mm/kasan/report.c | 4 ++--
1 file 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;
}
--
2.25.1
