diff options
| author | Paul E. McKenney <paulmck@kernel.org> | 2024-03-28 01:14:26 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2024-05-11 17:07:07 +0300 |
| commit | 5800e77d88c0cd98bc10460df148631afa7b5e4d (patch) | |
| tree | 62c98aa754b159ffa814a52bc10a22c89bb213ae /arch/csky/Kconfig | |
| parent | a88d970c8bb55dc20f319ce3e33c7ce0e9647480 (diff) | |
| download | linux-5800e77d88c0cd98bc10460df148631afa7b5e4d.tar.xz | |
csky: Emulate one-byte cmpxchg
Use the new cmpxchg_emu_u8() to emulate one-byte cmpxchg() on csky.
[ paulmck: Apply kernel test robot feedback. ]
[ paulmck: Drop two-byte support per Arnd Bergmann feedback. ]
Co-developed-by: Yujie Liu <yujie.liu@intel.com>
Signed-off-by: Yujie Liu <yujie.liu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Tested-by: Yujie Liu <yujie.liu@intel.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <linux-csky@vger.kernel.org>
Diffstat (limited to 'arch/csky/Kconfig')
| -rw-r--r-- | arch/csky/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index d3ac36751ad1..5479707eb5d1 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -37,6 +37,7 @@ config CSKY select ARCH_INLINE_SPIN_UNLOCK_BH if !PREEMPTION select ARCH_INLINE_SPIN_UNLOCK_IRQ if !PREEMPTION select ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE if !PREEMPTION + select ARCH_NEED_CMPXCHG_1_EMU select ARCH_WANT_FRAME_POINTERS if !CPU_CK610 && $(cc-option,-mbacktrace) select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT select COMMON_CLK |