Messages in this thread Patch in this message | | | Date | Sun, 14 Jan 2018 11:10:02 -0800 | From | tip-bot for Andi Kleen <> | Subject | [tip:x86/cleanups] x86/timer: Don't inline __const_udelay |
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Commit-ID: 7cf1aaa2ad3855bd5e95bef382a66fe122fc9b01 Gitweb: https://git.kernel.org/tip/7cf1aaa2ad3855bd5e95bef382a66fe122fc9b01 Author: Andi Kleen <ak@linux.intel.com> AuthorDate: Thu, 21 Dec 2017 16:18:16 -0800 Committer: Thomas Gleixner <tglx@linutronix.de> 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@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20171222001821.2157-2-andi@firstfloor.org
--- 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;
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