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powerpc: Remove hard coded FP offsets in alignment handler

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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>
This commit is contained in:
Anton Blanchard 2013-09-23 12:04:47 +10:00 committed by Benjamin Herrenschmidt
parent f626190d27
commit c324496456
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/kernel/align.c
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@ -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;