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arm64: add missing conversion to __wsum in ip_fast_csum()
ARM64 implementation of ip_fast_csum() do most of the work in 128 or 64 bit and call csum_fold() to finalize. csum_fold() itself take a __wsum argument, to insure that this value is always a 32bit native-order value. Fix this by adding the sadly needed '__force' to cast the native 'sum' to the type '__wsum'. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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@ -42,7 +42,7 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
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} while (--ihl);
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sum += ((sum >> 32) | (sum << 32));
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return csum_fold(sum >> 32);
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return csum_fold((__force u32)(sum >> 32));
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}
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#define ip_fast_csum ip_fast_csum
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