linux-kernel - proc-pid-vm.c:214:19: warning: 'str

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Date:   Sun, 5 Sep 2021 20:00:54 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        linux-stable <stable@...r.kernel.org>
Cc:     Shuah Khan <shuah@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>, lkft-triage@...ts.linaro.org,
        Alexey Dobriyan <adobriyan@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: proc-pid-vm.c:214:19: warning: 'str_vsyscall' defined but not used

Following build warnings noticed while building stable-rc Linux 5.14.1-rc1
with gcc-11 for arm64 architecture.

aarch64-linux-gnu-gcc -Wall -O2 -Wno-unused-function -D_GNU_SOURCE
proc-pid-vm.c  -o kselftest/proc/proc-pid-vm
proc-pid-vm.c:214:19: warning: 'str_vsyscall' defined but not used
[-Wunused-const-variable=]
  214 | static const char str_vsyscall[] =
      |                   ^~~~~~~~~~~~
proc-pid-vm.c:212:13: warning: 'g_vsyscall' defined but not used
[-Wunused-variable]
  212 | static bool g_vsyscall = false;
      |             ^~~~~~~~~~


Build config:
https://builds.tuxbuild.com/1xXcUtI2INra8KaHjOXXQMOyAD0/config

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

meta data:
-----------
    git_describe: v5.14-rc6-389-g95dc72bb9c03,
    git_repo: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc,
    git_sha: 95dc72bb9c032093e79e628a98c927b3db73a6c3,
    git_short_log: 95dc72bb9c03 (\Linux 5.14.1-rc1\),
    kconfig: [
        defconfig,
        https://raw.githubusercontent.com/Linaro/meta-lkft/sumo/recipes-kernel/linux/files/lkft.config,
        https://raw.githubusercontent.com/Linaro/meta-lkft/sumo/recipes-kernel/linux/files/lkft-crypto.config,
        https://raw.githubusercontent.com/Linaro/meta-lkft/sumo/recipes-kernel/linux/files/distro-overrides.config,
        https://raw.githubusercontent.com/Linaro/meta-lkft/sumo/recipes-kernel/linux/files/systemd.config,
        https://raw.githubusercontent.com/Linaro/meta-lkft/sumo/recipes-kernel/linux/files/virtio.config,
        CONFIG_ARM64_MODULE_PLTS=y
    ],
    kernel_version: 5.14.1-rc1,
    target_arch: arm64,
    targets: [
        dtbs,
        dtbs-legacy,
        headers,
        kernel,
        kselftest,
        kselftest-merge,
        modules
    ],
    toolchain: gcc-11,

steps to reproduce:
https://builds.tuxbuild.com/1xXcUtI2INra8KaHjOXXQMOyAD0/tuxmake_reproducer.sh

--
Linaro LKFT
https://lkft.linaro.org