On Mon, 29 Feb 2016 07:33:04 +0800 kbuild test robot <fengguang.wu@xxxxxxxxx> wrote: > FYI, the error/warning still remains. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: fc77dbd34c5c99bce46d40a2491937c3bcbd10af > commit: 5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a kconfig: make allnoconfig disable options behind EMBEDDED and EXPERT > date: 1 year, 11 months ago > config: mn10300-allnoconfig (attached as .config) > reproduce: > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout 5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a > # save the attached .config to linux build tree > make.cross ARCH=mn10300 > From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: mn10300, c6x: CONFIG_GENERIC_BUG must depend on CONFIG_BUG CONFIG_BUG=n && CONFIG_GENERIC_BUG=y make no sense and things break: In file included from include/linux/page-flags.h:9:0, from kernel/bounds.c:9: include/linux/bug.h:91:47: warning: 'struct bug_entry' declared inside parameter list static inline int is_warning_bug(const struct bug_entry *bug) ^ include/linux/bug.h:91:47: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bug.h: In function 'is_warning_bug': >> include/linux/bug.h:93:12: error: dereferencing pointer to incomplete type return bug->flags & BUGFLAG_WARNING; Reported-by: kbuild test robot <fengguang.wu@xxxxxxxxx> Cc: Josh Triplett <josh@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/c6x/Kconfig | 1 + arch/mn10300/Kconfig | 1 + 2 files changed, 2 insertions(+) diff -puN arch/c6x/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug arch/c6x/Kconfig --- a/arch/c6x/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug +++ a/arch/c6x/Kconfig @@ -36,6 +36,7 @@ config GENERIC_HWEIGHT config GENERIC_BUG def_bool y + depends on BUG config C6X_BIG_KERNEL bool "Build a big kernel" diff -puN arch/mn10300/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug arch/mn10300/Kconfig --- a/arch/mn10300/Kconfig~mn10300-c6x-config_generic_bug-must-depend-on-config_bug +++ a/arch/mn10300/Kconfig @@ -53,6 +53,7 @@ config GENERIC_HWEIGHT config GENERIC_BUG def_bool y + depends on BUG config QUICKLIST def_bool y _ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>