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;
MIME-Version: 1.0
References: <20231026160100.195099-1-brgerst@gmail.com> <20231026160100.195099-11-brgerst@gmail.com>
In-Reply-To: <20231026160100.195099-11-brgerst@gmail.com>
From:   Uros Bizjak <ubizjak@gmail.com>
Date:   Thu, 26 Oct 2023 20:51:01 +0200
Message-ID: <CAFULd4Z14P5SkQxzLBFfbpmXh9dEi+4NX-NWBjsLxnU1_aZ=yw@mail.gmail.com>
Subject: Re: [PATCH v2 10/11] percpu: Remove PER_CPU_FIRST_SECTION
To:     Brian Gerst <brgerst@gmail.com>
Cc:     linux-kernel@vger.kernel.org, x86@kernel.org,
        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>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Precedence: bulk

On Thu, Oct 26, 2023 at 6:01=E2=80=AFPM Brian Gerst <brgerst@gmail.com> wro=
te:
>
> 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/vmli=
nux.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 =3D .;                                           =
 \
> -       *(.data..percpu..first)                                         \
>         . =3D ALIGN(PAGE_SIZE);                                          =
 \
>         *(.data..percpu..page_aligned)                                  \
>         . =3D 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 firs=
t 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 cachel=
ine
>   * aligned under SMP conditions so that, whilst a particular instance of=
 the
> --
> 2.41.0
>