Merge tag 'kbuild-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull more Kbuild updates from Masahiro Yamada:

 - remove unneeded use of cc-option, cc-disable-warning, cc-ldoption

 - exclude tracked files from .gitignore

 - re-enable -Wint-in-bool-context warning

 - refactor samples/Makefile

 - stop building immediately if syncconfig fails

 - do not sprinkle error messages when $(CC) does not exist

 - move arch/alpha/defconfig to the configs subdirectory

 - remove crappy header search path manipulation

 - add comment lines to .config to clarify the end of menu blocks

 - check uniqueness of module names (adding new warnings intentionally)

* tag 'kbuild-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (24 commits)
  kconfig: use 'else ifneq' for Makefile to improve readability
  kbuild: check uniqueness of module names
  kconfig: Terminate menu blocks with a comment in the generated config
  kbuild: add LICENSES to KBUILD_ALLDIRS
  kbuild: remove 'addtree' and 'flags' magic for header search paths
  treewide: prefix header search paths with $(srctree)/
  media: prefix header search paths with $(srctree)/
  media: remove unneeded header search paths
  alpha: move arch/alpha/defconfig to arch/alpha/configs/defconfig
  kbuild: terminate Kconfig when $(CC) or $(LD) is missing
  kbuild: turn auto.conf.cmd into a mandatory include file
  .gitignore: exclude .get_maintainer.ignore and .gitattributes
  kbuild: add all Clang-specific flags unconditionally
  kbuild: Don't try to add '-fcatch-undefined-behavior' flag
  kbuild: add some extra warning flags unconditionally
  kbuild: add -Wvla flag unconditionally
  arch: remove dangling asm-generic wrappers
  samples: guard sub-directories with CONFIG options
  kbuild: re-enable int-in-bool-context warning
  MAINTAINERS: kbuild: Add pattern for scripts/*vmlinux*
  ...

1 files changed, 13 insertions, 12 deletions

diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 768306add591..3ab8d1a303cd 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -23,15 +23,16 @@ warning-  := $(empty)
 warning-1 := -Wextra -Wunused -Wno-unused-parameter
 warning-1 += -Wmissing-declarations
 warning-1 += -Wmissing-format-attribute
-warning-1 += $(call cc-option, -Wmissing-prototypes)
+warning-1 += -Wmissing-prototypes
 warning-1 += -Wold-style-definition
-warning-1 += $(call cc-option, -Wmissing-include-dirs)
+warning-1 += -Wmissing-include-dirs
 warning-1 += $(call cc-option, -Wunused-but-set-variable)
 warning-1 += $(call cc-option, -Wunused-const-variable)
 warning-1 += $(call cc-option, -Wpacked-not-aligned)
 warning-1 += $(call cc-option, -Wstringop-truncation)
-warning-1 += $(call cc-disable-warning, missing-field-initializers)
-warning-1 += $(call cc-disable-warning, sign-compare)
+# The following turn off the warnings enabled by -Wextra
+warning-1 += -Wno-missing-field-initializers
+warning-1 += -Wno-sign-compare
 
 warning-2 := -Waggregate-return
 warning-2 += -Wcast-align
@@ -39,8 +40,8 @@ warning-2 += -Wdisabled-optimization
 warning-2 += -Wnested-externs
 warning-2 += -Wshadow
 warning-2 += $(call cc-option, -Wlogical-op)
-warning-2 += $(call cc-option, -Wmissing-field-initializers)
-warning-2 += $(call cc-option, -Wsign-compare)
+warning-2 += -Wmissing-field-initializers
+warning-2 += -Wsign-compare
 warning-2 += $(call cc-option, -Wmaybe-uninitialized)
 warning-2 += $(call cc-option, -Wunused-macros)
 
@@ -66,11 +67,11 @@ KBUILD_CFLAGS += $(warning)
 else
 
 ifdef CONFIG_CC_IS_CLANG
-KBUILD_CFLAGS += $(call cc-disable-warning, initializer-overrides)
-KBUILD_CFLAGS += $(call cc-disable-warning, unused-value)
-KBUILD_CFLAGS += $(call cc-disable-warning, format)
-KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare)
-KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length)
-KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized)
+KBUILD_CFLAGS += -Wno-initializer-overrides
+KBUILD_CFLAGS += -Wno-unused-value
+KBUILD_CFLAGS += -Wno-format
+KBUILD_CFLAGS += -Wno-sign-compare
+KBUILD_CFLAGS += -Wno-format-zero-length
+KBUILD_CFLAGS += -Wno-uninitialized
 endif
 endif