Commit 7cf1aaa2 authored Dec 21, 2017 by Andi Kleen Committed by Thomas Gleixner Jan 14, 2018

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

parent 81bf665d

arch/x86/lib/delay.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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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