x86, smap: Handle csum_partial_copy_*_user()
authorH. Peter Anvin <hpa@linux.intel.com>
Fri, 30 Aug 2013 22:43:03 +0000 (15:43 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 27 Sep 2013 00:18:13 +0000 (17:18 -0700)
commit1159cd1ded90b41db788f84bf94644a810dd322a
tree8a2ee748bfd27b10e5f49f58ac76fa4e0098d038
parent87d5b89a6a77f1e141d41c5447f6a4e83feb8d11
x86, smap: Handle csum_partial_copy_*_user()

commit 7263dda41b5a28ae6566fd126d9b06ada73dd721 upstream.

Add SMAP annotations to csum_partial_copy_to/from_user().  These
functions legitimately access user space and thus need to set the AC
flag.

TODO: add explicit checks that the side with the kernel space pointer
really points into kernel space.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/n/tip-2aps0u00eer658fd5xyanan7@git.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/include/asm/checksum_32.h
arch/x86/lib/csum-wrappers_64.c