[tip:x86/cleanups] x86/timer: Don't inline __const_udelay
From: tip-bot for Andi Kleen
Date: Sun Jan 14 2018 - 14:11:22 EST
Commit-ID: 7cf1aaa2ad3855bd5e95bef382a66fe122fc9b01
Gitweb: https://git.kernel.org/tip/7cf1aaa2ad3855bd5e95bef382a66fe122fc9b01
Author: Andi Kleen <ak@xxxxxxxxxxxxxxx>
AuthorDate: Thu, 21 Dec 2017 16:18:16 -0800
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Sun, 14 Jan 2018 20:03:49 +0100
x86/timer: Don't inline __const_udelay
__const_udelay is marked inline, and LTO will happily inline it everywhere
Dropping the inline saves ~44k text in a LTO build.
13999560 1740864 1499136 17239560 1070e08 vmlinux-with-udelay-inline
13954764 1736768 1499136 17190668 1064f0c vmlinux-wo-udelay-inline
Inlining it has no advantage in general, so its the right thing to do.
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20171222001821.2157-2-andi@xxxxxxxxxxxxxx
---
arch/x86/lib/delay.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c
index 553f8fd..09c83b2 100644
--- a/arch/x86/lib/delay.c
+++ b/arch/x86/lib/delay.c
@@ -162,7 +162,7 @@ void __delay(unsigned long loops)
}
EXPORT_SYMBOL(__delay);
-inline void __const_udelay(unsigned long xloops)
+void __const_udelay(unsigned long xloops)
{
unsigned long lpj = this_cpu_read(cpu_info.loops_per_jiffy) ? : loops_per_jiffy;
int d0;