Re: linux-next: build warning after merge of the swiotlb tree
From: Konrad Rzeszutek Wilk
Date: Tue Jun 15 2021 - 22:43:43 EST
On Wed, Jun 16, 2021 at 11:38:35AM +1000, Stephen Rothwell wrote:
> Hi all,
>
> After merging the swiotlb tree, today's linux-next build (powerpc
> ppc64_defconfig and x86_64 allmodconfig) produced this warning:
>
> In file included from arch/powerpc/include/asm/bug.h:109,
> from include/linux/bug.h:5,
> from arch/powerpc/include/asm/mmu.h:147,
> from arch/powerpc/include/asm/lppaca.h:46,
> from arch/powerpc/include/asm/paca.h:17,
> from arch/powerpc/include/asm/current.h:13,
> from include/linux/sched.h:12,
> from include/linux/ratelimit.h:6,
> from include/linux/dev_printk.h:16,
> from include/linux/device.h:15,
> from include/linux/dma-mapping.h:7,
> from include/linux/dma-direct.h:9,
> from kernel/dma/swiotlb.c:24:
> kernel/dma/swiotlb.c: In function 'swiotlb_bounce':
> include/linux/dev_printk.h:242:23: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'unsigned int' [-Wformat=]
> 242 | WARN_ONCE(condition, "%s %s: " format, \
> | ^~~~~~~~~
> include/asm-generic/bug.h:97:17: note: in definition of macro '__WARN_printf'
> 97 | __warn_printk(arg); \
> | ^~~
> include/asm-generic/bug.h:161:3: note: in expansion of macro 'WARN'
> 161 | WARN(1, format); \
> | ^~~~
> include/linux/dev_printk.h:242:2: note: in expansion of macro 'WARN_ONCE'
> 242 | WARN_ONCE(condition, "%s %s: " format, \
> | ^~~~~~~~~
> kernel/dma/swiotlb.c:355:3: note: in expansion of macro 'dev_WARN_ONCE'
> 355 | dev_WARN_ONCE(dev, 1,
> | ^~~~~~~~~~~~~
>
> Introduced by commit
>
> 17eb5dcf1f15 ("swiotlb: manipulate orig_addr when tlb_addr has offset")
Fixed it up and should be OK in the next run. Thanks!
>
> --
> Cheers,
> Stephen Rothwell