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

From: Jean Delvare
Date: Fri May 03 2024 - 02:57:55 EST


Hi Stephen,

On Tue, 30 Apr 2024 16:50:17 +1000, Stephen Rothwell wrote:
> On Tue, 30 Apr 2024 11:46:13 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> 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.

Sorry about that. I have amended the commit to use format %zd instead
of %ld. This passes my local user-space testing so hopefully it will
fix the i386 and armv7 builds as well.

--
Jean Delvare
SUSE L3 Support