Hi Arnd, 2017-06-14 16:31 GMT+09:00 Arnd Bergmann <arnd@xxxxxxxx>: > On Wed, Jun 14, 2017 at 3:27 AM, Masahiro Yamada > <yamada.masahiro@xxxxxxxxxxxxx> wrote: >> 2017-06-14 8:08 GMT+09:00 Matthias Kaehlcke <mka@xxxxxxxxxxxx>: >>> cc-option uses KBUILD_CFLAGS and KBUILD_CPPFLAGS when it determines >>> whether an option is supported or not. This is fine for options used to >>> build the kernel itself, however some components like the x86 boot code >>> use a different set of flags. >>> >>> Add the new macro cc-option-raw which serves the same purpose as >>> cc-option but has additional parameters. One parameter is the compiler >>> with which the check should be performed, the other the compiler options >>> to be used instead KBUILD_C*FLAGS. The compiler parameter allows other >>> macros like hostcc-option to be implemented on top of cc-option-raw. >>> >>> Also rework cc-option to make use of cc-option-raw. >>> >>> Suggested-by: Arnd Bergmann <arnd@xxxxxxxx> >>> Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> >>> Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx> >>> --- >>> Changes in v2: >>> - Changed macro name from Add cc-option-no-kbuild to cc-option-raw >>> - Added compiler as parameter to the macro >>> - Reworked cc-option to make use of cc-option-raw >>> - Updated commit message >>> >>> scripts/Kbuild.include | 9 +++++++-- >>> 1 file changed, 7 insertions(+), 2 deletions(-) >>> >> >> Acked-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> >> (if nothing better pops up) > > Acked-by: Arnd Bergmann <arnd@xxxxxxxx> > > Regarding the naming, __cc-option might be better than cc-option-raw, > but the current version is fine too. Thank you for your suggestion. Yes, double-underscore prefix is often used in the kernel coding, so I like your idea. I will leave it up to Matthias, though. Either will be fine for me. Thanks! -- Best Regards Masahiro Yamada -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html