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Subject[PATCH -tip v2 1/3] x86/percpu: Define PER_CPU_VAR macro also for !__ASSEMBLY__
Date
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 --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
--
2.41.0
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