From: Tkhai Kirill Date: Tue, 10 May 2011 02:31:41 +0000 (+0000) Subject: sparc32: Fixed unaligned memory copying in function __csum_partial_copy_sparc_generic X-Git-Tag: v2.6.39~43^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1054282d752c5a026e2c0450616ebf37fc0413e;p=pandora-kernel.git 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 Signed-off-by: David S. Miller --- Reading git-diff-tree failed