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From: Michael Ellerman <mpe@ellerman.id.au>
To: Stephen Rothwell <sfr@canb.auug.org.au>, PowerPC
 <linuxppc-dev@lists.ozlabs.org>
Subject: Re: linux-next: build warning after merge of the powerpc tree
In-Reply-To: <20210415185214.01e1e64f@canb.auug.org.au>
References: <20210415185214.01e1e64f@canb.auug.org.au>
Date: Fri, 16 Apr 2021 20:54:25 +1000
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Stephen Rothwell <sfr@canb.auug.org.au> writes:
> Hi all,
>
> After merging the powerpc tree, today's linux-next build (powerpc
> allyesconfig) produced this warning:
>
> In file included from include/linux/device.h:15,
>                  from arch/powerpc/include/asm/io.h:27,
>                  from include/linux/io.h:13,
>                  from include/linux/irq.h:20,
>                  from arch/powerpc/include/asm/hardirq.h:6,
>                  from include/linux/hardirq.h:11,
>                  from include/linux/highmem.h:10,
>                  from include/linux/bio.h:8,
>                  from include/linux/libnvdimm.h:14,
>                  from arch/powerpc/platforms/pseries/papr_scm.c:12:
> arch/powerpc/platforms/pseries/papr_scm.c: In function 'papr_scm_pmem_flush':
> arch/powerpc/platforms/pseries/papr_scm.c:144:26: warning: format '%lld' expects argument of type 'long long int', but argument 3 has type 'long int' [-Wformat=]
>   144 |   dev_err(&p->pdev->dev, "flush error: %lld", rc);
>       |                          ^~~~~~~~~~~~~~~~~~~
> include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
>    19 | #define dev_fmt(fmt) fmt
>       |                      ^~~
> arch/powerpc/platforms/pseries/papr_scm.c:144:3: note: in expansion of macro 'dev_err'
>   144 |   dev_err(&p->pdev->dev, "flush error: %lld", rc);
>       |   ^~~~~~~
> arch/powerpc/platforms/pseries/papr_scm.c:144:43: note: format string is defined here
>   144 |   dev_err(&p->pdev->dev, "flush error: %lld", rc);
>       |                                        ~~~^
>       |                                           |
>       |                                           long long int
>       |                                        %ld
>
> Introduced by commit
>
>   75b7c05ebf90 ("powerpc/papr_scm: Implement support for H_SCM_FLUSH hcall")

My bad.

cheers