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| author | Jason Gunthorpe <jgg@nvidia.com> | 2020-09-04 16:36:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-05 12:14:30 -0700 |
| commit | 428fc0aff4e59399ec719ffcc1f7a5d29a4ee476 (patch) | |
| tree | 60d6f7ad31d5b56e9c403a5822074098ec3c9fe3 | |
| parent | e5a59d308f52bb0052af5790c22173651b187465 (diff) | |
| download | lwn-428fc0aff4e59399ec719ffcc1f7a5d29a4ee476.tar.gz lwn-428fc0aff4e59399ec719ffcc1f7a5d29a4ee476.zip | |
include/linux/log2.h: add missing () around n in roundup_pow_of_two()
Otherwise gcc generates warnings if the expression is complicated.
Fixes: 312a0c170945 ("[PATCH] LOG2: Alter roundup_pow_of_two() so that it can use a ilog2() on a constant")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.kernel.org/r/0-v1-8a2697e3c003+41165-log_brackets_jgg@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/log2.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/log2.h b/include/linux/log2.h index 83a4a3ca3e8a..c619ec6eff4a 100644 --- a/include/linux/log2.h +++ b/include/linux/log2.h @@ -173,7 +173,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n) #define roundup_pow_of_two(n) \ ( \ __builtin_constant_p(n) ? ( \ - (n == 1) ? 1 : \ + ((n) == 1) ? 1 : \ (1UL << (ilog2((n) - 1) + 1)) \ ) : \ __roundup_pow_of_two(n) \ |