From: Bobby Bingham <koorogi@koorogi.info>
Date: Thu, 3 Apr 2014 21:46:41 +0000 (-0700)
Subject: sh: don't pass saved userspace state to exception handlers
X-Git-Tag: v3.15-rc1~106^2~217
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a3c195144e162097c42e4284323ed6d386de105d;p=pandora-kernel.git

sh: don't pass saved userspace state to exception handlers

The compiler is permitted to generate code which overwrites the
parameters to a function.  If those parameters include the only saved
copy we have of userspace's registers, we're in trouble.

Signed-off-by: Bobby Bingham <koorogi@koorogi.info>
Cc: Paul Mundt <paul.mundt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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