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Masahiro Yamada 3a7c733165 int128: fix __uint128_t compiler test in Kconfig 
The support for __uint128_t is dependent on the target bit size.

GCC that defaults to the 32-bit can still build the 64-bit kernel
with -m64 flag passed.

However, $(cc-option,-D__SIZEOF_INT128__=0) is evaluated against the
default machine bit, which may not match to the kernel it is building.

Theoretically, this could be evaluated separately for 64BIT/32BIT.

  config CC_HAS_INT128
          bool
          default !$(cc-option,$(m64-flag) -D__SIZEOF_INT128__=0) if 64BIT
          default !$(cc-option,$(m32-flag) -D__SIZEOF_INT128__=0)

I simplified it more because the 32-bit compiler is unlikely to support
__uint128_t.

Fixes: c12d3362a7 ("int128: move __uint128_t compiler test to Kconfig")
Reported-by: George Spelvin <lkml@sdf.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: George Spelvin <lkml@sdf.org>
2020-03-12 07:43:03 +09:00
..
calibrate.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
do_mounts_initrd.c init: unify opening /dev/console as stdin/stdout/stderr 2019-12-12 18:58:24 +01:00
do_mounts_md.c init/: remove ineffective sparse disabling 2018-08-22 10:52:49 -07:00
do_mounts_rd.c init/: remove ineffective sparse disabling 2018-08-22 10:52:49 -07:00
do_mounts.c Fix root mounting with no mount options 2019-12-16 08:42:39 -08:00
do_mounts.h fs: add do_mknodat() helper and ksys_mknod() wrapper; remove in-kernel calls to syscall 2018-04-02 20:15:56 +02:00
init_task.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-09-17 12:35:15 -07:00
initramfs.c arm64: use generic free_initrd_mem() 2019-10-16 13:55:25 +01:00
Kconfig int128: fix __uint128_t compiler test in Kconfig 2020-03-12 07:43:03 +09:00
main.c Tracing updates: 2020-02-26 10:34:42 -08:00
Makefile Kbuild: Handle PREEMPT_RT for version string and magic 2019-08-14 01:10:42 +09:00
noinitramfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 167 2019-05-30 11:26:39 -07:00
version.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00