linux-kernel - Powerpc: maple_defconfig: kernel/rtas_pci.c:46:5: error: no previous prototype for function 'rtas_read

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Message-ID: <CA+G9fYt0LLXtjSz+Hkf3Fhm-kf0ZQanrhUS+zVZGa3O+Wt2+vg@mail.gmail.com>
Date:   Mon, 27 Nov 2023 15:54:22 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        lkft-triage@...ts.linaro.org,
        clang-built-linux <llvm@...ts.linux.dev>,
        regressions@...ts.linux.dev,
        open list <linux-kernel@...r.kernel.org>
Cc:     Benjamin Gray <bgray@...ux.ibm.com>,
        Nathan Lynch <nathanl@...ux.ibm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Nathan Chancellor <nathan@...nel.org>,
        Anders Roxell <anders.roxell@...aro.org>,
        Dan Carpenter <dan.carpenter@...aro.org>
Subject: Powerpc: maple_defconfig: kernel/rtas_pci.c:46:5: error: no previous
 prototype for function 'rtas_read_config' [-Werror,-Wmissing-prototypes]

Following Powerpc maple_defconfig and other builds failed with gcc-13 / 8
and clang toolchains on Linux next-20231127 tag.

  build:
    * gcc-8-cell_defconfig
    * gcc-8-maple_defconfig
    * gcc-8-tinyconfig
    * gcc-13-tinyconfig
    * gcc-13-cell_defconfig
    * gcc-13-maple_defconfig
    * clang-17-cell_defconfig
    * clang-17-tinyconfig
    * clang-17-maple_defconfig
    * clang-nightly-cell_defconfig
    * clang-nightly-maple_defconfig
    * clang-nightly-tinyconfig

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

Build logs:
-----------
arch/powerpc/kernel/rtas_pci.c:46:5: error: no previous prototype for
function 'rtas_read_config' [-Werror,-Wmissing-prototypes]
   46 | int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
      |     ^
arch/powerpc/kernel/rtas_pci.c:46:1: note: declare 'static' if the
function is not intended to be used outside of this translation unit
   46 | int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val)
      | ^
      | static
arch/powerpc/kernel/rtas_pci.c:98:5: error: no previous prototype for
function 'rtas_write_config' [-Werror,-Wmissing-prototypes]
   98 | int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val)
      |     ^
arch/powerpc/kernel/rtas_pci.c:98:1: note: declare 'static' if the
function is not intended to be used outside of this translation unit
   98 | int rtas_write_config(struct pci_dn *pdn, int where, int size, u32 val)
      | ^
      | static
2 errors generated.
make[5]: *** [scripts/Makefile.build:243:
arch/powerpc/kernel/rtas_pci.o] Error 1

steps to reproduce:

# tuxmake --runtime podman --target-arch powerpc --toolchain clang-17
--kconfig maple_defconfig LLVM=1 LLVM_IAS=0
LD=powerpc64le-linux-gnu-ld



Links:
  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20231127/testrun/21324129/suite/build/test/clang-17-maple_defconfig/log
  - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20231127/testrun/21324129/suite/build/test/clang-17-maple_defconfig/history/
  - https://storage.tuxsuite.com/public/linaro/lkft/builds/2Yk9XaK95NuGJL9barjaXrOWxib/

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