include/linux/log2.h: add missing () around n in roundup_pow_of_two()
[ Upstream commit5.4-rM2-2.2.x-imx-squashed428fc0aff4
] Otherwise gcc generates warnings if the expression is complicated. Fixes:312a0c1709
("[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>
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bc846b58fe
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5629bb21ce
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@ -173,7 +173,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
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#define roundup_pow_of_two(n) \
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( \
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__builtin_constant_p(n) ? ( \
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(n == 1) ? 1 : \
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((n) == 1) ? 1 : \
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(1UL << (ilog2((n) - 1) + 1)) \
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) : \
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__roundup_pow_of_two(n) \
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