diff mbox series

[v3,3/5] arch,locking/atomic: openrisc: add arch_cmpxchg[64]_local

Message ID 20231121142347.241356-4-wuqiang.matt@bytedance.com
State New
Headers
Series arch,locking/atomic: add arch_cmpxchg[64]_local |

Commit Message

wuqiang.matt Nov. 21, 2023, 2:23 p.m. UTC 
  openrisc hasn't arch_cmpxhg_local implemented, which causes
building failures for any references of try_cmpxchg_local,
reported by the kernel test robot.

This patch implements arch_cmpxchg[64]_local with the native
cmpxchg variant if the corresponding data size is supported,
otherwise generci_cmpxchg[64]_local is to be used.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202310272207.tLPflya4-lkp@intel.com/

Signed-off-by: wuqiang.matt <wuqiang.matt@bytedance.com>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
---
 arch/openrisc/include/asm/cmpxchg.h | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/arch/openrisc/include/asm/cmpxchg.h b/arch/openrisc/include/asm/cmpxchg.h
index 8ee151c072e4..f1ffe8b6f5ef 100644
--- a/arch/openrisc/include/asm/cmpxchg.h
+++ b/arch/openrisc/include/asm/cmpxchg.h
@@ -139,6 +139,12 @@  static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 					       (unsigned long)(n),	\
 					       sizeof(*(ptr)));		\
 	})
+#define arch_cmpxchg_local arch_cmpxchg
+
+/* always make arch_cmpxchg64_local available for openrisc */
+#include <asm-generic/cmpxchg-local.h>
+
+#define arch_cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
 
 /*
  * This function doesn't exist, so you'll get a linker error if