linux-kernel - linux-next: build warning after merge of the vfs tree

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Date:   Mon, 4 Feb 2019 09:33:34 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Al Viro <viro@...IV.linux.org.uk>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        David Howells <dhowells@...hat.com>
Subject: linux-next: build warning after merge of the vfs tree

Hi Al,

After merging the vfs tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

In file included from include/linux/printk.h:7,
                 from include/linux/kernel.h:14,
                 from include/linux/fs_context.h:15,
                 from fs/fs_parser.c:13:
fs/fs_parser.c: In function 'fs_validate_description':
include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^~~~~~
include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
 #define KERN_ERR KERN_SOH "3" /* error conditions */
                  ^~~~~~~~
include/linux/printk.h:303:9: note: in expansion of macro 'KERN_ERR'
  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         ^~~~~~~~
fs/fs_parser.c:413:6: note: in expansion of macro 'pr_err'
      pr_err("VALIDATE %s: e[%lu] enum val for %s\n",
      ^~~~~~
fs/fs_parser.c:413:31: note: format string is defined here
      pr_err("VALIDATE %s: e[%lu] enum val for %s\n",
                             ~~^
                             %u

Introduced by commit

  f512b838c104 ("vfs: Add configuration parser helpers")

-- 
Cheers,
Stephen Rothwell

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