[PATCH] ppc64 syscall_exit_work: call the save_nvgprs function, not its descriptor.

David Woodhouse dwmw2 at infradead.org
Fri Nov 18 23:15:33 EST 2005


On Tue, 2005-11-15 at 18:52 +0000, David Woodhouse wrote:
> This cleanup patch speeds up the null syscall path on ppc64 by about 3%,
> and brings the ppc32 and ppc64 code slightly closer together.

Needs this unless your binutils, like mine, are clever enough to notice
my stupidity and fix it up automatically...

Spotted by Paul.

Signed-off-by: David Woodhouse <dwmw2 at infradead.org>

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 83b9edf..2eb6f54 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -241,7 +241,7 @@ syscall_exit_work:
 	bne-	3b
 	subi	r12,r12,TI_FLAGS
 	
-4:	bl	save_nvgprs
+4:	bl	.save_nvgprs
 	/* Anything else left to do? */
 	andi.	r0,r9,(_TIF_SYSCALL_T_OR_A|_TIF_SINGLESTEP|_TIF_SAVE_NVGPRS)
 	beq	.ret_from_except_lite

-- 
dwmw2





More information about the Linuxppc64-dev mailing list