Re: powerpc/32: fix again csum_partial_copy_generic()
flat view
From: Michael Ellerman <hidden>
Date: 2016-09-08 09:47:55
Also in:
lkml, stable
On Fri, 2016-26-08 at 14:45:13 UTC, Christophe Leroy wrote:
commit 7aef4136566b0 ("powerpc32: rewrite csum_partial_copy_generic()
based on copy_tofrom_user()") introduced a bug when destination
address is odd and len is lower than cacheline size.
In that case the resulting csum value doesn't have to be rotated one
byte because the cache-aligned copy part is skipped so no alignment
is performed.
Fixes: 7aef4136566b0 ("powerpc32: rewrite csum_partial_copy_generic() based on copy_tofrom_user()")
Cc: <redacted>
Reported-by: Alessio Igor Bogani <redacted>
Signed-off-by: Christophe Leroy <redacted>
Tested-by: Alessio Igor Bogani <redacted>Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/8540571e01f973d321b0821f4f cheers