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

From: Stephen Rothwell <[email-masked]>
Date: Thu, 15 Apr 2021 18:52:14 +1000

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")

-- 
Cheers,
Stephen Rothwell