* [PATCH] x86/percpu: Construct __percpu_seg_override from __percpu_seg
@ 2025-02-25 20:02 Uros Bizjak
2025-02-25 20:19 ` [tip: x86/asm] " tip-bot2 for Uros Bizjak
0 siblings, 1 reply; 2+ messages in thread
From: Uros Bizjak @ 2025-02-25 20:02 UTC (permalink / raw)
To: x86, linux-kernel
Cc: Uros Bizjak, Thomas Gleixner, Ingo Molnar, Borislav Petkov,
Dave Hansen, H. Peter Anvin
Construct __percpu_seg_override macro from __percpu_seg by
concatenating the later with __seg_ prefix to reduce ifdeffery.
No functional change intended.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
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>
---
arch/x86/include/asm/percpu.h | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index c456e54adb73..8a8cf86dded3 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -22,6 +22,7 @@
#else /* !__ASSEMBLY__: */
+#include <linux/args.h>
#include <linux/build_bug.h>
#include <linux/stringify.h>
#include <asm/asm.h>
@@ -35,12 +36,7 @@
# define __seg_fs __attribute__((address_space(__seg_fs)))
#endif
-#ifdef CONFIG_X86_64
-# define __percpu_seg_override __seg_gs
-#else
-# define __percpu_seg_override __seg_fs
-#endif
-
+#define __percpu_seg_override CONCATENATE(__seg_, __percpu_seg)
#define __percpu_prefix ""
#else /* !CONFIG_CC_HAS_NAMED_AS: */
--
2.42.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [tip: x86/asm] x86/percpu: Construct __percpu_seg_override from __percpu_seg
2025-02-25 20:02 [PATCH] x86/percpu: Construct __percpu_seg_override from __percpu_seg Uros Bizjak
@ 2025-02-25 20:19 ` tip-bot2 for Uros Bizjak
0 siblings, 0 replies; 2+ messages in thread
From: tip-bot2 for Uros Bizjak @ 2025-02-25 20:19 UTC (permalink / raw)
To: linux-tip-commits
Cc: Uros Bizjak, Ingo Molnar, H. Peter Anvin, Linus Torvalds, x86,
linux-kernel
The following commit has been merged into the x86/asm branch of tip:
Commit-ID: 79165720f31868d9a9f7e5a50a09d5fe510d1822
Gitweb: https://git.kernel.org/tip/79165720f31868d9a9f7e5a50a09d5fe510d1822
Author: Uros Bizjak <ubizjak@gmail.com>
AuthorDate: Tue, 25 Feb 2025 21:02:20 +01:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Tue, 25 Feb 2025 21:07:24 +01:00
x86/percpu: Construct __percpu_seg_override from __percpu_seg
Construct __percpu_seg_override macro from __percpu_seg by
concatenating the later with __seg_ prefix to reduce ifdeffery.
No functional change intended.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250225200235.48007-1-ubizjak@gmail.com
---
arch/x86/include/asm/percpu.h | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index c2a9dfc..7cb4f64 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -22,6 +22,7 @@
#else /* !__ASSEMBLY__: */
+#include <linux/args.h>
#include <linux/build_bug.h>
#include <linux/stringify.h>
#include <asm/asm.h>
@@ -35,12 +36,7 @@
# define __seg_fs __attribute__((address_space(__seg_fs)))
#endif
-#ifdef CONFIG_X86_64
-# define __percpu_seg_override __seg_gs
-#else
-# define __percpu_seg_override __seg_fs
-#endif
-
+#define __percpu_seg_override CONCATENATE(__seg_, __percpu_seg)
#define __percpu_prefix ""
#else /* !CONFIG_CC_HAS_NAMED_AS: */
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2025-02-25 20:02 [PATCH] x86/percpu: Construct __percpu_seg_override from __percpu_seg Uros Bizjak
2025-02-25 20:19 ` [tip: x86/asm] " tip-bot2 for Uros Bizjak
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