linux-kernel - Re: powerpc: add __printf verification to prom

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Date:   Fri, 25 May 2018 21:41:35 +1000 (AEST)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: powerpc: add __printf verification to prom_printf

On Fri, 2018-04-06 at 20:12:19 UTC, Mathieu Malaterre wrote:
> __printf is useful to verify format and arguments. Fix arg mismatch
> reported by gcc, remove the following warnings (with W=1):
> 
>   arch/powerpc/kernel/prom_init.c:1467:31: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1471:31: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1504:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1505:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1506:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1507:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1508:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1509:33: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1975:39: error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 2 has type ‘unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:1986:27: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:2567:38: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:2567:46: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:2569:38: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 2 has type ‘long unsigned int’ [-Werror=format=]
>   arch/powerpc/kernel/prom_init.c:2569:46: error: format ‘%x’ expects argument of type ‘unsigned int’, but argument 3 has type ‘long unsigned int’ [-Werror=format=]
> 
> The patch also include arg mismatch fix for case with #define DEBUG_PROM
> (warning not listed here).
> 
> This patch fix also the following warnings revealed by checkpatch:
> 
>   WARNING: Prefer using '"%s...", __func__' to using 'alloc_up', this function's name, in a string
>   #101: FILE: arch/powerpc/kernel/prom_init.c:1235:
>   + prom_debug("alloc_up(%lx, %lx)\n", size, align);
> 
> and
> 
>   WARNING: Prefer using '"%s...", __func__' to using 'alloc_down', this function's name, in a string
>   #138: FILE: arch/powerpc/kernel/prom_init.c:1278:
>   + prom_debug("alloc_down(%lx, %lx, %s)\n", size, align,
> 
> Signed-off-by: Mathieu Malaterre <malat@...ian.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/eae5f709a4d738c52b6ab636981755

cheers