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author | Tkhai Kirill <tkhai@yandex.ru> | 2011-05-10 02:31:41 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2011-05-12 04:35:04 (GMT) |
commit | b1054282d752c5a026e2c0450616ebf37fc0413e (patch) | |
tree | d88dcef782fc8e33674109c5c82fb37f2829abdc /lib/raid6/.gitignore | |
parent | f486b3dc2d048e7309a733f97eb9f9f83d586df2 (diff) | |
download | linux-fsl-qoriq-b1054282d752c5a026e2c0450616ebf37fc0413e.tar.xz |
sparc32: Fixed unaligned memory copying in function __csum_partial_copy_sparc_generic
When we are in the label cc_dword_align, registers %o0 and %o1 have the same last 2 bits,
but it's not guaranteed one of them is zero. So we can get unaligned memory access
in label ccte. Example of parameters which lead to this:
%o0=0x7ff183e9, %o1=0x8e709e7d, %g1=3
With the parameters I had a memory corruption, when the additional 5 bytes were rewritten.
This patch corrects the error.
One comment to the patch. We don't care about the third bit in %o1, because cc_end_cruft
stores word or less.
Signed-off-by: Tkhai Kirill <tkhai@yandex.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/raid6/.gitignore')
0 files changed, 0 insertions, 0 deletions