From: Paul Mackerras <paulus@samba.org>
Date: Wed, 29 Jan 2014 05:33:56 +0000 (+1100)
Subject: powerpc: Fix 32-bit frames for signals delivered when transactional
X-Git-Tag: v3.14-rc1~39^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d765ff23e3181413fb1bed090c8d702165448a84;p=pandora-kernel.git

powerpc: Fix 32-bit frames for signals delivered when transactional

Commit d31626f70b61 ("powerpc: Don't corrupt transactional state when
using FP/VMX in kernel") introduced a bug where the uc_link and uc_regs
fields of the ucontext_t that is created to hold the transactional
values of the registers in a 32-bit signal frame didn't get set
correctly.  The reason is that we now clear the MSR_TS bits in the MSR
in save_tm_user_regs(), before the code that sets uc_link and uc_regs.
To fix this, we move the setting of uc_link and uc_regs into the same
if statement that selects whether to call save_tm_user_regs() or
save_user_regs().

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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