Subject: Re: linux-next: build warning after merge of the dmi tree

From: Stephen Rothwell <[email-masked]>
Date: Tue, 30 Apr 2024 16:50:17 +1000

Hi all,

On Tue, 30 Apr 2024 11:46:13 +1000 Stephen Rothwell <[email-masked]> wrote:
> 
> After merging the dmi 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/thread_info.h:13,
>                  from include/asm-generic/preempt.h:5,
>                  from ./arch/arm/include/generated/asm/preempt.h:1,
>                  from include/linux/preempt.h:79,
>                  from include/linux/spinlock.h:56,
>                  from include/linux/mmzone.h:8,
>                  from include/linux/gfp.h:7,
>                  from include/linux/umh.h:4,
>                  from include/linux/kmod.h:9,
>                  from include/linux/module.h:17,
>                  from drivers/firmware/dmi_scan.c:5:
> drivers/firmware/dmi_scan.c: In function 'dmi_decode_table':
> include/linux/kern_levels.h:5:25: warning: format '%ld' expects argument of type 'long int', but argument 2 has type 'int' [-Wformat=]
>     5 | #define KERN_SOH        "\001"          /* ASCII Start Of Header */
>       |                         ^~~~~~
> include/linux/printk.h:429:25: note: in definition of macro 'printk_index_wrap'
>   429 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
>       |                         ^~~~
> include/linux/printk.h:510:9: note: in expansion of macro 'printk'
>   510 |         printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
>       |         ^~~~~~
> include/linux/kern_levels.h:12:25: note: in expansion of macro 'KERN_SOH'
>    12 | #define KERN_WARNING    KERN_SOH "4"    /* warning conditions */
>       |                         ^~~~~~~~
> include/linux/printk.h:510:16: note: in expansion of macro 'KERN_WARNING'
>   510 |         printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
>       |                ^~~~~~~~~~~~
> drivers/firmware/dmi_scan.c:109:25: note: in expansion of macro 'pr_warn'
>   109 |                         pr_warn(FW_BUG
>       |                         ^~~~~~~
> 
> Introduced by commit
> 
>   868577e6bfe1 ("firmware: dmi: Stop decoding on broken entry")
> 
> Include printk.h?

This caused i386 defconfig build fail, so I have reverted this commit
for today.

-- 
Cheers,
Stephen Rothwell