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From: Brian Gerst <brgerst@gmail.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Ingo Molnar <mingo@kernel.org>, "H . Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Borislav Petkov <bp@alien8.de>, Ard Biesheuvel <ardb@kernel.org>,
	Uros Bizjak <ubizjak@gmail.com>, Brian Gerst <brgerst@gmail.com>
Subject: [PATCH v6 12/15] percpu: Remove PER_CPU_FIRST_SECTION
Date: Thu, 23 Jan 2025 14:07:44 -0500	[thread overview]
Message-ID: <20250123190747.745588-13-brgerst@gmail.com> (raw)
In-Reply-To: <20250123190747.745588-1-brgerst@gmail.com>

x86-64 was the last user.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
---
 include/asm-generic/vmlinux.lds.h |  1 -
 include/linux/percpu-defs.h       | 12 ------------
 2 files changed, 13 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 54504013c749..4a69658739de 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -1061,7 +1061,6 @@ defined(CONFIG_AUTOFDO_CLANG) || defined(CONFIG_PROPELLER_CLANG)
  */
 #define PERCPU_INPUT(cacheline)						\
 	__per_cpu_start = .;						\
-	*(.data..percpu..first)						\
 	. = ALIGN(PAGE_SIZE);						\
 	*(.data..percpu..page_aligned)					\
 	. = ALIGN(cacheline);						\
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 5b520fe86b60..40d34e032d5b 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -26,13 +26,11 @@
 #define PER_CPU_SHARED_ALIGNED_SECTION "..shared_aligned"
 #define PER_CPU_ALIGNED_SECTION "..shared_aligned"
 #endif
-#define PER_CPU_FIRST_SECTION "..first"
 
 #else
 
 #define PER_CPU_SHARED_ALIGNED_SECTION ""
 #define PER_CPU_ALIGNED_SECTION "..shared_aligned"
-#define PER_CPU_FIRST_SECTION ""
 
 #endif
 
@@ -114,16 +112,6 @@
 #define DEFINE_PER_CPU(type, name)					\
 	DEFINE_PER_CPU_SECTION(type, name, "")
 
-/*
- * Declaration/definition used for per-CPU variables that must come first in
- * the set of variables.
- */
-#define DECLARE_PER_CPU_FIRST(type, name)				\
-	DECLARE_PER_CPU_SECTION(type, name, PER_CPU_FIRST_SECTION)
-
-#define DEFINE_PER_CPU_FIRST(type, name)				\
-	DEFINE_PER_CPU_SECTION(type, name, PER_CPU_FIRST_SECTION)
-
 /*
  * Declaration/definition used for per-CPU variables that must be cacheline
  * aligned under SMP conditions so that, whilst a particular instance of the
-- 
2.47.1


  parent reply	other threads:[~2025-01-23 19:08 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-23 19:07 [PATCH v6 00/15] x86-64: Stack protector and percpu improvements Brian Gerst
2025-01-23 19:07 ` [PATCH v6 01/15] x86: Raise minimum GCC version to 8.1 Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] x86/build: Raise the " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 02/15] x86/stackprotector: Remove stack protector test scripts Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 03/15] x86/boot: Disable stack protector for early boot code Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 04/15] x86/pvh: Use fixed_percpu_data for early boot GSBASE Brian Gerst
2025-01-25 15:06   ` Borislav Petkov
2025-01-25 16:51     ` Brian Gerst
2025-01-26  3:57       ` Borislav Petkov
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-03-04 22:26   ` [PATCH v6 04/15] " Mateusz Guzik
2025-03-04 23:44     ` H. Peter Anvin
2025-03-04 23:49       ` Mateusz Guzik
2025-03-05  7:16         ` Uros Bizjak
2025-03-05 12:01           ` Mateusz Guzik
2025-01-23 19:07 ` [PATCH v6 05/15] x86/relocs: Handle R_X86_64_REX_GOTPCRELX relocations Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 06/15] x86/module: Deal with GOT based stack cookie load on Clang < 17 Brian Gerst
2025-02-18  9:07   ` Ingo Molnar
2025-02-18 14:05     ` Brian Gerst
2025-02-18 21:52       ` H. Peter Anvin
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Ard Biesheuvel
2025-01-23 19:07 ` [PATCH v6 07/15] x86/stackprotector/64: Convert to normal percpu variable Brian Gerst
2025-02-18  9:14   ` Ingo Molnar
2025-02-18 12:11   ` [tip: x86/asm] x86/stackprotector/64: Convert to normal per-CPU variable tip-bot2 for Brian Gerst
2025-02-19 19:59   ` [PATCH v6 07/15] x86/stackprotector/64: Convert to normal percpu variable Nathan Chancellor
2025-02-20  9:23     ` Ard Biesheuvel
2025-03-12 11:59   ` [tip: x86/asm] x86/stackprotector/64: Only export __ref_stack_chk_guard on CONFIG_SMP tip-bot2 for Ingo Molnar
2025-03-19 11:03   ` [tip: x86/core] " tip-bot2 for Ingo Molnar
2025-01-23 19:07 ` [PATCH v6 08/15] x86/percpu/64: Use relative percpu offsets Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 09/15] x86/percpu/64: Remove fixed_percpu_data Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 10/15] x86/boot/64: Remove inverse relocations Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 11/15] x86/percpu/64: Remove INIT_PER_CPU macros Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` Brian Gerst [this message]
2025-02-18 12:11   ` [tip: x86/asm] percpu: Remove PER_CPU_FIRST_SECTION tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 13/15] percpu: Remove PERCPU_VADDR() Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 14/15] percpu: Remove __per_cpu_load Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-01-23 19:07 ` [PATCH v6 15/15] kallsyms: Remove KALLSYMS_ABSOLUTE_PERCPU Brian Gerst
2025-02-18 12:11   ` [tip: x86/asm] " tip-bot2 for Brian Gerst
2025-02-18  9:22 ` [PATCH v6 00/15] x86-64: Stack protector and percpu improvements Ingo Molnar
2025-02-18 17:46   ` Uros Bizjak
2025-02-19 11:47     ` Ingo Molnar
2025-02-19 13:18       ` Brian Gerst
2025-02-20  9:51         ` Uros Bizjak
2025-02-20 10:05           ` Ard Biesheuvel
2025-02-20 10:46             ` Uros Bizjak
2025-02-20 10:52               ` Ard Biesheuvel
2025-02-20 10:56                 ` Uros Bizjak
2025-02-20 17:24                 ` Brian Gerst
2025-02-20 17:35                   ` Ard Biesheuvel
2025-02-20 17:47                     ` Brian Gerst
2025-02-20 17:59                       ` Brian Gerst
2025-02-20 20:09                         ` Uros Bizjak
2025-02-20 13:26         ` Ingo Molnar
2025-02-20 17:05           ` Brian Gerst
2025-02-22 12:25             ` Ingo Molnar

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