linux-kernel - Re: linux-next: build warning after merge of the sound tree

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Message-ID: <20240902164916.1cba3f03@canb.auug.org.au>
Date: Mon, 2 Sep 2024 16:49:16 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Takashi Iwai <tiwai@...e.de>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Next
 Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the sound tree

Hi all,

On Mon, 2 Sep 2024 13:29:04 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> After merging the sound tree, today's linux-next build (arm
> multi_v7_defconfig) produced this warning:
> 
> In file included from include/asm-generic/bug.h:22,
>                  from arch/arm/include/asm/bug.h:60,
>                  from include/linux/bug.h:5,
>                  from include/linux/io.h:12,
>                  from sound/core/pcm_memory.c:7:
> sound/core/pcm_memory.c: In function 'snd_pcm_lib_preallocate_proc_write':
> include/linux/kern_levels.h:5:25: warning: format '%zu' expects argument of type 'size_t', but argument 7 has type 'long unsigned int' [-Wformat=]
>     5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
>       |                         ^~~~~~
> include/linux/printk.h:135:25: note: in definition of macro 'no_printk'
>   135 |                 _printk(fmt, ##__VA_ARGS__);            \
>       |                         ^~~
> include/linux/kern_levels.h:15:25: note: in expansion of macro 'KERN_SOH'
>    15 | #define KERN_DEBUG      KERN_SOH "7"    /* debug-level messages */
>       |                         ^~~~~~~~
> include/linux/printk.h:620:19: note: in expansion of macro 'KERN_DEBUG'
>   620 |         no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
>       |                   ^~~~~~~~~~
> sound/core/pcm_memory.c:215:33: note: in expansion of macro 'pr_debug'
>   215 |                                 pr_debug("ALSA pcmC%dD%d%c,%d:%s: cannot preallocate for size %zu\n",
>       |                                 ^~~~~~~~
> 
> Introduced by commit
> 
>   43b42ed438bf ("ALSA: pcm: Fix the previous conversion to kstrtoul()")

This became a build failure in the i386 defconfig build, so I have
reverted that commit for today.

-- 
Cheers,
Stephen Rothwell

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