[PATCH 2/4] powerpc: remove the redundant flush_fp_to_thread() in setup_sigcontext()

Kevin Hao haokexin at gmail.com
Sun Jul 14 19:02:04 EST 2013

In commit c6e6771b(powerpc: Introduce VSX thread_struct and CONFIG_VSX)
we add a invocation of flush_fp_to_thread() before copying the FPR or
VSR to users. But we already invoke the flush_fp_to_thread() in this
function. So remove one of them.

Signed-off-by: Kevin Hao <haokexin at gmail.com>
 arch/powerpc/kernel/signal_64.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 887e99d..cb833bf 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -96,8 +96,6 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
 	unsigned long msr = regs->msr;
 	long err = 0;
-	flush_fp_to_thread(current);
 	err |= __put_user(v_regs, &sc->v_regs);

More information about the Linuxppc-dev mailing list