Re: [Patch v2 13/15] CIFS: Add support for direct I/O read

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Hi Long,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on v4.17-rc6]
[cannot apply to cifs/for-next next-20180601]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Long-Li/CIFS-Add-direct-I-O-support/20180602-130240
config: i386-randconfig-x000-201821 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from include/linux/kernel.h:14:0,
                    from include/linux/list.h:9,
                    from include/linux/wait.h:7,
                    from include/linux/wait_bit.h:8,
                    from include/linux/fs.h:6,
                    from fs/cifs/file.c:24:
   fs/cifs/file.c: In function 'cifs_direct_readv':
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/printk.h:136:10: note: in definition of macro 'no_printk'
      printk(fmt, ##__VA_ARGS__);  \
             ^~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   include/linux/printk.h:342:12: note: in expansion of macro 'KERN_DEBUG'
     no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
               ^~~~~~~~~~
>> fs/cifs/cifs_debug.h:82:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__);    \
      ^~~~~~~~
   fs/cifs/file.c:3346:4: note: in expansion of macro 'cifs_dbg'
       cifs_dbg(VFS,
       ^~~~~~~~
   fs/cifs/file.c:3348:20: note: format string is defined here
        " iov_offset %lu count %lu\n",
                     ~~^
                     %u
   In file included from include/linux/kernel.h:14:0,
                    from include/linux/list.h:9,
                    from include/linux/wait.h:7,
                    from include/linux/wait_bit.h:8,
                    from include/linux/fs.h:6,
                    from fs/cifs/file.c:24:
   include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t {aka unsigned int}' [-Wformat=]
    #define KERN_SOH "\001"  /* ASCII Start Of Header */
                     ^
   include/linux/printk.h:136:10: note: in definition of macro 'no_printk'
      printk(fmt, ##__VA_ARGS__);  \
             ^~~
   include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH'
    #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
                       ^~~~~~~~
   include/linux/printk.h:342:12: note: in expansion of macro 'KERN_DEBUG'
     no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
               ^~~~~~~~~~
>> fs/cifs/cifs_debug.h:82:3: note: in expansion of macro 'pr_debug'
      pr_debug(fmt, ##__VA_ARGS__);    \
      ^~~~~~~~
   fs/cifs/file.c:3346:4: note: in expansion of macro 'cifs_dbg'
       cifs_dbg(VFS,
       ^~~~~~~~
   fs/cifs/file.c:3348:30: note: format string is defined here
        " iov_offset %lu count %lu\n",
                               ~~^
                               %u

vim +/pr_debug +82 fs/cifs/cifs_debug.h

f2f176b4 Aurelien Aptel  2018-04-10  73  
^1da177e Linus Torvalds  2005-04-16  74  /*
^1da177e Linus Torvalds  2005-04-16  75   *	debug OFF
^1da177e Linus Torvalds  2005-04-16  76   *	---------
^1da177e Linus Torvalds  2005-04-16  77   */
^1da177e Linus Torvalds  2005-04-16  78  #else		/* _CIFS_DEBUG */
f96637be Joe Perches     2013-05-04  79  #define cifs_dbg(type, fmt, ...)					\
bde98197 Joe Perches     2012-12-05  80  do {									\
bde98197 Joe Perches     2012-12-05  81  	if (0)								\
0b456f04 Andy Shevchenko 2014-08-27 @82  		pr_debug(fmt, ##__VA_ARGS__);				\
bde98197 Joe Perches     2012-12-05  83  } while (0)
f96637be Joe Perches     2013-05-04  84  #endif
^1da177e Linus Torvalds  2005-04-16  85  

:::::: The code at line 82 was first introduced by commit
:::::: 0b456f04bcdf5b1151136adaada158bfc26f1be7 cifs: convert printk(LEVEL...) to pr_<level>

:::::: TO: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
:::::: CC: Steve French <steve.french@xxxxxxxxxxxxxxx>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: application/gzip


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