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arm64: csum: cast to the proper type 

The last line of ip_fast_csum() calls csum_fold(), forcing the
type of the argument passed to be u32.  But csum_fold() takes a
__wsum argument (which is __u32 __bitwise for arm64).  As long
as we're forcing the cast, cast it to the right type.

Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20210315012650.1221328-1-elder@linaro.org
Signed-off-by: Will Deacon <will@kernel.org>
rM2-mainline
Alex Elder 2021-03-14 20:26:50 -05:00 committed by Will Deacon
parent c8e3866836
commit 0710442a88
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/include/asm/checksum.h
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@ -37,7 +37,7 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
} while (--n > 0);
sum += ((sum >> 32) | (sum << 32));
return csum_fold((__force u32)(sum >> 32));
return csum_fold((__force __wsum)(sum >> 32));
}
#define ip_fast_csum ip_fast_csum