Commit 39f838e0 authored Oct 30, 2013 by Josh Triplett

x86: Drop support for /proc files when !CONFIG_PROC_FS

arch/x86/kernel/cpu/proc.c only exists to support files in /proc; omit that
file when compiling without CONFIG_PROC_FS.

Saves 645 additional bytes on 32-bit x86 when !CONFIG_PROC_FS:

add/remove: 0/5 grow/shrink: 0/0 up/down: 0/-645 (-645)
function old new delta
c_stop 1 - -1
c_next 11 - -11
cpuinfo_op 16 - -16
c_start 24 - -24
show_cpuinfo 593 - -593

Signed-off-by: Josh Triplett <josh@joshtriplett.org>

parent 7d1311b9

arch/x86/kernel/cpu/Makefile

+3 −1

Original line number	Diff line number	Diff line
		@@ -13,10 +13,12 @@ nostackp := $(call cc-option, -fno-stack-protector)
		CFLAGS_common.o := $(nostackp)

		obj-y := intel_cacheinfo.o scattered.o topology.o
		obj-y += proc.o capflags.o powerflags.o common.o
		obj-y += capflags.o powerflags.o common.o
		obj-y += rdrand.o
		obj-y += match.o

		obj-$(CONFIG_PROC_FS) += proc.o

		obj-$(CONFIG_X86_32) += bugs.o
		obj-$(CONFIG_X86_64) += bugs_64.o