kbuild: Add a help message for "headers"

Meanwhile explicitly state that the headers are uapi headers.

Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

diff --git a/Makefile b/Makefile
index 22593a774cf61ccdb2b245f46b743789c80e09d5..5c333682dc9142b1aacfe454a5c77f5923554b7d 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1672,7 +1672,8 @@ help:
        @echo  '  kernelrelease   - Output the release version string (use with make -s)'
        @echo  '  kernelversion   - Output the version stored in Makefile (use with make -s)'
        @echo  '  image_name      - Output the image name (use with make -s)'
-       @echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
+       @echo  '  headers         - Build ready-to-install UAPI headers in usr/include'
+       @echo  '  headers_install - Install sanitised kernel UAPI headers to INSTALL_HDR_PATH'; \
         echo  '                    (default: $(INSTALL_HDR_PATH))'; \
         echo  ''
        @echo  'Static analysers:'