From: John David Anglin <dave.anglin@bell.net>
Date: Sun, 14 Dec 2014 15:49:11 +0000 (-0500)
Subject: parisc: fix out-of-register compiler error in ldcw inline assembler function
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~355^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45db07382a5c78b0c43b3b0002b63757fb60e873;p=pandora-kernel.git

parisc: fix out-of-register compiler error in ldcw inline assembler function

The __ldcw macro has a problem when its argument needs to be reloaded from
memory. The output memory operand and the input register operand both need to
be reloaded using a register in class R1_REGS when generating 64-bit code.
This fails because there's only a single register in the class. Instead, use a
memory clobber. This also makes the __ldcw macro a compiler memory barrier.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: <stable@vger.kernel.org>        [3.13+]
Signed-off-by: Helge Deller <deller@gmx.de>
---

Reading git-diff-tree failed