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authorMichael Ellerman <mpe@ellerman.id.au>2015-10-15 05:33:57 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2015-10-15 11:31:42 +0200
commitbd960f09830cacd812b272b0ddbf4116a503cbbd (patch)
tree78ec5ff2913428bd168c062de4eac829fcbf9fc7 /scripts
parentpowerpc/mm: Differentiate between hugetlb and THP during page walk (diff)
downloadlinux-bd960f09830cacd812b272b0ddbf4116a503cbbd.tar.xz
linux-bd960f09830cacd812b272b0ddbf4116a503cbbd.zip
scripts/kconfig/Makefile: Fix KBUILD_DEFCONFIG check when building with O=
My recent commit d2036f30cfe1 ("scripts/kconfig/Makefile: Allow KBUILD_DEFCONFIG to be a target"), contained a bug in that when it checks if KBUILD_DEFCONFIG is a file it forgets to prepend $(srctree) to the path. This causes the build to fail when building out of tree (with O=), and when the value of KBUILD_DEFCONFIG is 'defconfig'. In that case we will fail to find the 'defconfig' file, because we look in the build directory not $(srctree), and so we will call Make again with 'defconfig' as the target. From there we loop infinitely calling 'make defconfig' again and again. The fix is simple, we need to look for the file under $(srctree). Fixes: d2036f30cfe1 ("scripts/kconfig/Makefile: Allow KBUILD_DEFCONFIG to be a target") Reported-by: Olof Johansson <olof@lixom.net> Acked-by: Michal Marek <mmarek@suse.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/kconfig/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index b2b9c87cec50..3043d6b0b51d 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -96,7 +96,7 @@ savedefconfig: $(obj)/conf
defconfig: $(obj)/conf
ifeq ($(KBUILD_DEFCONFIG),)
$< $(silent) --defconfig $(Kconfig)
-else ifneq ($(wildcard arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
+else ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG)),)
@$(kecho) "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
$(Q)$< $(silent) --defconfig=arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) $(Kconfig)
else