[<prev] [next>] [day] [month] [year] [list]
Message-ID: <20250907184915.78041-1-ubizjak@gmail.com>
Date: Sun, 7 Sep 2025 20:48:46 +0200
From: Uros Bizjak <ubizjak@...il.com>
To: x86@...nel.org,
linux-kernel@...r.kernel.org
Cc: Uros Bizjak <ubizjak@...il.com>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...nel.org>,
Borislav Petkov <bp@...en8.de>,
Dave Hansen <dave.hansen@...ux.intel.com>,
"H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH RESEND -tip] x86/percpu: Use BIT_WORD() and BIT_MASK() macros
Use BIT_WORD() and BIT_MASK() macros from <linux/bits.h>
in <arch/x86/include/asm/percpu.h> instead of open-coding them.
No functional change intended.
Signed-off-by: Uros Bizjak <ubizjak@...il.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Borislav Petkov <bp@...en8.de>
Cc: Dave Hansen <dave.hansen@...ux.intel.com>
Cc: "H. Peter Anvin" <hpa@...or.com>
---
arch/x86/include/asm/percpu.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 332428caaed2..725d0eff7acd 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -23,6 +23,7 @@
#else /* !__ASSEMBLY__: */
#include <linux/args.h>
+#include <linux/bits.h>
#include <linux/build_bug.h>
#include <linux/stringify.h>
#include <asm/asm.h>
@@ -572,9 +573,9 @@ do { \
#define x86_this_cpu_constant_test_bit(_nr, _var) \
({ \
unsigned long __percpu *addr__ = \
- (unsigned long __percpu *)&(_var) + ((_nr) / BITS_PER_LONG); \
+ (unsigned long __percpu *)&(_var) + BIT_WORD(_nr); \
\
- !!((1UL << ((_nr) % BITS_PER_LONG)) & raw_cpu_read(*addr__)); \
+ !!(BIT_MASK(_nr) & raw_cpu_read(*addr__)); \
})
#define x86_this_cpu_variable_test_bit(_nr, _var) \
--
2.51.0
Powered by blists - more mailing lists