From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 02:04:47 +0000 (+1000)
Subject: powerpc: Remove hard coded FP offsets in alignment handler
X-Git-Tag: v3.13-rc1~127^2~100
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=c324496456208e4a6a377d8a36b8fad76d004c7f;p=~emulex%2Finfiniband.git

powerpc: Remove hard coded FP offsets in alignment handler

The alignment handler assumes big endian ordering when selecting
the low word of a 64bit floating point value. Use the existing
union which works in both little and big endian.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index af830dfe98b..25d8d8b4eaf 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -895,7 +895,7 @@ int fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
 			preempt_disable();
 			enable_kernel_fp();
-			cvt_df(&data.dd, (float *)&data.v[4]);
+			cvt_df(&data.dd, (float *)&data.x32.low32);
 			preempt_enable();
 #else
 			return 0;
@@ -935,7 +935,7 @@ int fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
 		preempt_disable();
 		enable_kernel_fp();
-		cvt_fd((float *)&data.v[4], &data.dd);
+		cvt_fd((float *)&data.x32.low32, &data.dd);
 		preempt_enable();
 #else
 		return 0;