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EDAC, skx_edac: Fix logical channel intermediate decoding 

commit 8f18973877 upstream.

The code "lchan = (lchan << 1) | ~lchan" for logical channel
intermediate decoding is wrong. The wrong intermediate decoding
result is {0xffffffff, 0xfffffffe}.

Fix it by replacing '~' with '!'. The correct intermediate
decoding result is {0x1, 0x2}.

Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
CC: Aristeu Rozanski <aris@redhat.com>
CC: Mauro Carvalho Chehab <mchehab@kernel.org>
CC: linux-edac <linux-edac@vger.kernel.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20181009172025.18594-1-tony.luck@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Qiuxu Zhuo 2018-10-09 10:20:25 -07:00 committed by Greg Kroah-Hartman
parent d2afa597ff
commit 4ef899b328
1 changed files with 1 additions and 1 deletions
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2
drivers/edac/skx_edac.c
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@ -606,7 +606,7 @@ sad_found:
break;
case 2:
lchan = (addr >> shift) % 2;
lchan = (lchan << 1) | ~lchan;
lchan = (lchan << 1) | !lchan;
break;
case 3:
lchan = ((addr >> shift) % 2) << 1;