From: Johannes Berg <johannes.berg@xxxxxxxxx> For W=2, we can enable more kernel-doc warnings, such as missing return value descriptions etc. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> --- scripts/Makefile.build | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/scripts/Makefile.build b/scripts/Makefile.build index a0b4fb58201c..ddd644bd032d 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -101,7 +101,9 @@ else ifeq ($(KBUILD_CHECKSRC),2) endif ifneq ($(KBUILD_EXTRA_WARN),) - cmd_checkdoc = $(srctree)/scripts/kernel-doc -none $(KDOCFLAGS) $< + cmd_checkdoc = $(srctree)/scripts/kernel-doc -none $(KDOCFLAGS) \ + $(if $(findstring 2, $(KBUILD_EXTRA_WARN)), -Wall) \ + $< endif # Compile C sources (.c) -- 2.40.1