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| author | Ingo Molnar <mingo@kernel.org> | 2021-11-28 11:00:34 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2022-03-15 12:57:35 +0100 |
| commit | 80c4496c7f6fe9380008050a7667a009b54738b3 (patch) | |
| tree | 39468cf73d43f19820c8ad7f097993bafa559094 | |
| parent | 75357fc436a95fccd2c5718ad6c01ad061db3bb6 (diff) | |
| download | tip-80c4496c7f6fe9380008050a7667a009b54738b3.tar.gz | |
headers/deps: hashtable_types: Use ilog2_const()
Make HASH_BITS() use ilog2_const().
Since it uses ARRAY_SIZE(), which is not supposed to be used on dynamic arrays,
this shouldn't be a limitation in practice.
If some code uses it that way, a compiler error or warning should alert us,
due to HASH_BITS() returning -1. I hope. :-/
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | include/linux/hashtable_types.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/hashtable_types.h b/include/linux/hashtable_types.h index c11bee62b158f4..c5e7539a1e5596 100644 --- a/include/linux/hashtable_types.h +++ b/include/linux/hashtable_types.h @@ -22,7 +22,7 @@ struct hlist_head name[1 << (bits)] #define HASH_SIZE(name) (ARRAY_SIZE(name)) -#define HASH_BITS(name) ilog2(HASH_SIZE(name)) +#define HASH_BITS(name) const_ilog2(HASH_SIZE(name)) /* Use hash_32 when possible to allow for fast 32bit hashing in 64bit kernels. */ #define hash_min(val, bits) \ |