The patch titled
Subject: smp: make __smp_processor_id() 0-argument macro
has been added to the -mm mm-nonmm-unstable branch. Its filename is
smp-make-__smp_processor_id-0-argument-macro.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/smp-make-__smp_processor_id-0-argument-macro.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: smp: make __smp_processor_id() 0-argument macro
Date: Mon, 5 Feb 2024 12:39:30 +0300
smp_processor_id family of macros never accepted any arguments.
#define __smp_processor_id(x)
works by accident (see C99 6.10.3 §4). __smp_processor_id() gets
1 (empty) argument and passes it down to raw_smp_processor_id()
which doesn't accept arguments.
Link: https://lkml.kernel.org/r/0037d1f2-8153-4b33-b43e-f4b6ecd710ac@p183
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/smp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/include/linux/smp.h~smp-make-__smp_processor_id-0-argument-macro
+++ a/include/linux/smp.h
@@ -261,7 +261,7 @@ static inline int get_boot_cpu_id(void)
* regular asm read for the stable.
*/
#ifndef __smp_processor_id
-#define __smp_processor_id(x) raw_smp_processor_id(x)
+#define __smp_processor_id() raw_smp_processor_id()
#endif
#ifdef CONFIG_DEBUG_PREEMPT
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
smp-make-__smp_processor_id-0-argument-macro.patch
