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UPSTREAM: lib/stackdepot.c: use array_size() helper in jhash2()

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Use array_size() helper instead of the open-coded version in jhash2().
These sorts of multiplication factors need to be wrapped in array_size().

Also, use the preferred form for passing the size of an object type.

Link: https://lkml.kernel.org/r/cb8a682e4bba4dbddd2bd8aca7f8c02fea89639b.1601565471.git.gustavoars@kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 180644f80a)
Bug: 172318110
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Change-Id: Ifb9c11368b187adff230b42f5c6899faeb3740d5
This commit is contained in:
Gustavo A. R. Silva
2020-12-15 20:43:10 -08:00
committed by Alistair Delva
parent 522668ec71
commit ceca973506
1 changed files with 2 additions and 2 deletions
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4
lib/stackdepot.c
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@@ -154,8 +154,8 @@ static struct stack_record *stack_table[STACK_HASH_SIZE] = {
static inline u32 hash_stack(unsigned long *entries, unsigned int size)
{
return jhash2((u32 *)entries,
size * sizeof(unsigned long) / sizeof(u32),
STACK_HASH_SEED);
array_size(size, sizeof(*entries)) / sizeof(u32),
STACK_HASH_SEED);
}
/* Use our own, non-instrumented version of memcmp().