diff mbox series

[-tip,v2,1/3] x86/percpu: Define PER_CPU_VAR macro also for !__ASSEMBLY__

Message ID 20231105213731.1878100-2-ubizjak@gmail.com
State New
Headers
Series x86/callthunks: Fix and unify call thunk assembly snippets |

Commit Message

Uros Bizjak Nov. 5, 2023, 9:34 p.m. UTC 
  Some C source files define 'asm' statements that use PER_CPU_VAR,
so make PER_CPU_VAR macro available also without __ASSEMBLY__.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
---
v2: Make PER_CPU_VAR macro available in 'asm' statements
    instead of moving 'asm' statements to *.S assembly files.
---
 arch/x86/include/asm/percpu.h | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index b86b27d15e52..0f12b2004b94 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -84,10 +84,15 @@ 
 })
 #endif /* CONFIG_USE_X86_SEG_SUPPORT */
 
+#define PER_CPU_VAR(var)	%__percpu_seg:(var)__percpu_rel
+
 #else /* CONFIG_SMP */
 #define __percpu_seg_override
 #define __percpu_prefix		""
 #define __force_percpu_prefix	""
+
+#define PER_CPU_VAR(var)	(var)__percpu_rel
+
 #endif /* CONFIG_SMP */
 
 #define __my_cpu_type(var)	typeof(var) __percpu_seg_override