Merge tag 'kbuild-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild fixes from Nicolas Schier:

 - builddeb - avoid recompiles for non-cross-compiles

   Avoid triggering complete rebuilds for non-cross-compile Debian
   package builds by only triggering the rebuild of host tools for
   actual cross-compile builds

 - Never respect CONFIG_WERROR / W=e to fixdep

   Avoid spurious rebuilds of fixdep w/ and w/o -Werror during a single
   kbuild invocation by never respecting CONFIG_WERROR for fixdep

* tag 'kbuild-fixes-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux:
  kbuild: Never respect CONFIG_WERROR / W=e to fixdep
  kbuild: builddeb - avoid recompiles for non-cross-compiles

1 files changed, 7 insertions, 1 deletions

diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index 3627ca227e5a..ba1defc61652 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -139,7 +139,13 @@ install_kernel_headers () {
 	pdir=debian/$1
 	version=${1#linux-headers-}
 
-	CC="${DEB_HOST_GNU_TYPE}-gcc" "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}"
+	# Override $CC only for cross-compiles, to not unnecessarily rebuild
+	# scripts/ including plugins, which may lead to a full kernel rebuild.
+	if [ -n "${CROSS_COMPILE}" ]; then
+		CC="${DEB_HOST_GNU_TYPE}-gcc" "${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}"
+	else
+		"${srctree}/scripts/package/install-extmod-build" "${pdir}/usr/src/linux-headers-${version}"
+	fi
 
 	mkdir -p $pdir/lib/modules/$version/
 	ln -s /usr/src/linux-headers-$version $pdir/lib/modules/$version/build