diff mbox series

[v2,10/11] percpu: Remove PER_CPU_FIRST_SECTION

Message ID	20231026160100.195099-11-brgerst@gmail.com
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.36 as permitted sender) client-ip=23.128.96.36; From: Brian Gerst <brgerst@gmail.com> To: linux-kernel@vger.kernel.org, x86@kernel.org Cc: Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Borislav Petkov <bp@alien8.de>, "H . Peter Anvin" <hpa@zytor.com>, Peter Zijlstra <peterz@infradead.org>, Uros Bizjak <ubizjak@gmail.com>, Brian Gerst <brgerst@gmail.com> Subject: [PATCH v2 10/11] percpu: Remove PER_CPU_FIRST_SECTION Date: Thu, 26 Oct 2023 12:00:59 -0400 Message-ID: <20231026160100.195099-11-brgerst@gmail.com> In-Reply-To: <20231026160100.195099-1-brgerst@gmail.com> References: <20231026160100.195099-1-brgerst@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	x86-64: Stack protector and percpu improvements \| [v2,00/11] x86-64: Stack protector and percpu improvements [v2,01/11] x86/stackprotector/32: Remove stack protector test script [v2,02/11] x86/stackprotector/64: Remove stack protector test script [v2,03/11] x86/boot: Disable stack protector for early boot code [v2,04/11] x86/pvh: Use fixed_percpu_data for early boot GSBASE [v2,05/11] x86/stackprotector/64: Convert stack protector to normal percpu variable [v2,06/11] x86/percpu/64: Remove fixed_percpu_data [v2,07/11] x86/percpu/64: Use relative percpu offsets [v2,08/11] x86/boot/64: Remove inverse relocations [v2,09/11] x86/percpu/64: Remove INIT_PER_CPU macros [v2,10/11] percpu: Remove PER_CPU_FIRST_SECTION [v2,11/11] kallsyms: Remove KALLSYMS_ABSOLUTE_PERCPU

Commit Message

Brian Gerst Oct. 26, 2023, 4 p.m. UTC

  x86-64 was the only user.

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

Comments

Uros Bizjak Oct. 26, 2023, 6:51 p.m. UTC | #1

On Thu, Oct 26, 2023 at 6:01 PM Brian Gerst <brgerst@gmail.com> wrote:
>
> x86-64 was the only user.
>
> Signed-off-by: Brian Gerst <brgerst@gmail.com>

Reviewed-by: Uros Bizjak <ubizjak@gmail.com>

> ---
>  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 67d8dd2f1bde..23d8acc72760 100644
> --- a/include/asm-generic/vmlinux.lds.h
> +++ b/include/asm-generic/vmlinux.lds.h
> @@ -1032,7 +1032,6 @@
>   */
>  #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 ec3573119923..b9ddee91e6c7 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
> --
> 2.41.0
>

diff mbox series

Patch

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 67d8dd2f1bde..23d8acc72760 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -1032,7 +1032,6 @@ 
  */
 #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 ec3573119923..b9ddee91e6c7 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