linux-kernel - Re: [PATCH] MIPS: Octeon: Fix build errors using clang

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Date:   Sat, 18 Dec 2021 00:58:55 +0100
From:   Philippe Mathieu-Daudé <f4bug@...at.org>
To:     Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Adrian Schmutzler <freifunk@...ianschmutzler.de>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] MIPS: Octeon: Fix build errors using clang

On Thu, Dec 16, 2021 at 5:11 PM Tianjia Zhang
<tianjia.zhang@...ux.alibaba.com> wrote:
>
> A large number of the following errors is reported when compiling
> with clang:
>
>   cvmx-bootinfo.h:326:3: error: adding 'int' to a string does not append to the string [-Werror,-Wstring-plus-int]
>                   ENUM_BRD_TYPE_CASE(CVMX_BOARD_TYPE_NULL)
>                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>   cvmx-bootinfo.h:321:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
>           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
>                          ~~~^~~~
>   cvmx-bootinfo.h:326:3: note: use array indexing to silence this warning
>   cvmx-bootinfo.h:321:20: note: expanded from macro 'ENUM_BRD_TYPE_CASE'
>           case x: return(#x + 16);        /* Skip CVMX_BOARD_TYPE_ */
>                           ^
>
> Follow the prompts to use the address operator '&' to fix this error.
>
> Signed-off-by: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
> ---
>  arch/mips/include/asm/octeon/cvmx-bootinfo.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <f4bug@...at.org>