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| author | Jason Gunthorpe <jgg@nvidia.com> | 2020-09-04 16:36:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-09 19:03:10 +0200 |
| commit | 5ace0847122fb22f18a20fb7809339cb3d789f01 (patch) | |
| tree | 9d1fb55bda6b43035ef42e8343f64ec774ff9b11 | |
| parent | 905f44ec6e0eaca2c73b2a92b02c0731530384ca (diff) | |
| download | linux-5ace0847122fb22f18a20fb7809339cb3d789f01.tar.gz linux-5ace0847122fb22f18a20fb7809339cb3d789f01.tar.bz2 linux-5ace0847122fb22f18a20fb7809339cb3d789f01.zip | |
include/linux/log2.h: add missing () around n in roundup_pow_of_two()
[ Upstream commit 428fc0aff4e59399ec719ffcc1f7a5d29a4ee476 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.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 c373295f359f..cca606609e1b 100644 --- a/include/linux/log2.h +++ b/include/linux/log2.h @@ -159,7 +159,7 @@ 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) \ |