Paul Mackerras b492f7e4e0 powerpc/64: Fix checksum folding in csum_tcpudp_nofold and ip_fast_csum_nofold ... These functions compute an IP checksum by computing a 64-bit sum and folding it to 32 bits (the "nofold" in their names refers to folding down to 16 bits). However, doing (u32) (s + (s >> 32)) is not sufficient to fold a 64-bit sum to 32 bits correctly. The addition can produce a carry out from bit 31, which needs to be added in to the sum to produce the correct result. To fix this, we copy the from64to32() function from lib/checksum.c and use that. Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2017-01-25 13:34:18 +11:00
..
asm	powerpc/64: Fix checksum folding in csum_tcpudp_nofold and ip_fast_csum_nofold	2017-01-25 13:34:18 +11:00
uapi/asm	powerpc updates for 4.10	2016-12-16 09:26:42 -08:00