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Subject[PATCH v2 1/2] 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>
---
v2: no changes to patch 1.

arch/x86/kernel/cpu/Makefile | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index 7fd54f0..64038d8 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -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

--
1.9.0


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