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powerpc/book3s: Fix CFAR clobbering issue in machine check handler.
authorMahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Tue, 11 Mar 2014 05:26:18 +0000 (10:56 +0530)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Sun, 23 Mar 2014 23:16:09 +0000 (10:16 +1100)
While checking powersaving mode in machine check handler at 0x200, we
clobber CFAR register. Fix it by saving and restoring it during beq/bgt.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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