aboutsummaryrefslogtreecommitdiff
path: root/Makefile
diff options
context:
space:
mode:
authorMichal Marek <mmarek@suse.cz>2013-07-11 15:34:51 +0200
committerMichal Marek <mmarek@suse.cz>2013-08-28 17:09:54 +0200
commit0d0e7718a9da789dec7932b7411ab16047540c4f (patch)
treefdc9b67e397376155296adb19ad2a67899b264dd /Makefile
parent4f9879f6c6454f255cb81b7a34dd35e355679f4b (diff)
downloadlinux-0d0e7718a9da789dec7932b7411ab16047540c4f.tar.gz
kbuild: Do not overwrite include/config/kernel.release needlessly
Use filechk to detect if the content changed or not. Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile7
1 files changed, 5 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 9262ba8da4f..cf897763d98 100644
--- a/Makefile
+++ b/Makefile
@@ -794,10 +794,13 @@ PHONY += $(vmlinux-dirs)
$(vmlinux-dirs): prepare scripts
$(Q)$(MAKE) $(build)=$@
+define filechk_kernel.release
+ echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
+endef
+
# Store (new) KERNELRELEASE string in include/config/kernel.release
include/config/kernel.release: include/config/auto.conf FORCE
- $(Q)rm -f $@
- $(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@
+ $(call filechk,kernel.release)
# Things we need to do before we recursively start building the kernel