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Subject[PATCH mm v2 22/33] kasan: use virt_addr_valid in kasan_addr_to_page/slab
Date
From: Andrey Konovalov <andreyknvl@google.com>

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

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>

---

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
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