From: Benjamin Herrenschmidt Date: Thu, 20 Oct 2005 04:23:49 +0000 (-0700) Subject: [PATCH] ppc64: Fix error in vDSO 32 bits date X-Git-Tag: v2.6.14-rc5~10 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=83bcbf8dad86c217ef70b4b4d53811422bb79dfa;p=platform%2Fkernel%2Flinux-exynos.git [PATCH] ppc64: Fix error in vDSO 32 bits date The implementation of __kernel_gettimeofday() in the 32 bits vDSO has a small bug (a typo actually) that will cause it to lose 1 bit of precision. Not terribly bad but worth fixing. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/ppc64/kernel/vdso32/gettimeofday.S b/arch/ppc64/kernel/vdso32/gettimeofday.S index 07f1c1c..e243c1d 100644 --- a/arch/ppc64/kernel/vdso32/gettimeofday.S +++ b/arch/ppc64/kernel/vdso32/gettimeofday.S @@ -109,7 +109,7 @@ __do_get_xsec: lwz r6,(CFG_TB_TO_XS+4)(r9) mulhwu r4,r7,r5 mulhwu r6,r7,r6 - mullw r6,r7,r5 + mullw r0,r7,r5 addc r6,r6,r0 /* At this point, we have the scaled xsec value in r4 + XER:CA