[dhowells-fs:fscache-iter 34/62] fs/cachefiles/internal.h:304:36: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'}

[kbuild test robot <lkp@intel.com>]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter
head:   b4a9eadc021941103fd0c925e7e7b38516ffaf39
commit: 2289a70f6f242d1cd836d027ca86d55f90797ac1 [34/62] cachefiles: Implement extent shaper
config: parisc-randconfig-r025-20200527 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 2289a70f6f242d1cd836d027ca86d55f90797ac1
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

In file included from arch/parisc/include/asm/io.h:6,
from include/linux/io.h:13,
from include/linux/irq.h:20,
from arch/parisc/include/asm/hardirq.h:13,
from include/linux/hardirq.h:9,
from include/linux/interrupt.h:11,
from include/linux/kernel_stat.h:9,
from include/linux/cgroup.h:26,
from include/linux/memcontrol.h:13,
from include/linux/swap.h:9,
from fs/cachefiles/content-map.c:11:
include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable]
96 |   pte_t old_pte;              |         ^~~~~~~
arch/parisc/include/asm/pgtable.h:322:34: note: in expansion of macro 'set_pte_at'
322 | #define pte_clear(mm, addr, xp)  set_pte_at(mm, addr, xp, __pte(0))
|                                  ^~~~~~~~~~
include/asm-generic/pgtable.h:202:2: note: in expansion of macro 'pte_clear'
202 |  pte_clear(mm, address, ptep);
|  ^~~~~~~~~
include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit':
arch/parisc/include/asm/pgtable.h:96:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable]
96 |   pte_t old_pte;              |         ^~~~~~~
include/asm-generic/pgtable.h:641:2: note: in expansion of macro 'set_pte_at'
641 |  set_pte_at(vma->vm_mm, addr, ptep, pte);
|  ^~~~~~~~~~
In file included from include/linux/kernel.h:15,
from include/linux/list.h:9,
from include/linux/mount.h:14,
from fs/cachefiles/content-map.c:8:
fs/cachefiles/content-map.c: In function 'cachefiles_expand_content_map':
>> fs/cachefiles/internal.h:304:36: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
304 | #define _enter(FMT, ...) no_printk("==> %s("FMT")", __func__, ##__VA_ARGS__)
|                                    ^~~~~~~~~
include/linux/printk.h:137:10: note: in definition of macro 'no_printk'
137 |   printk(fmt, ##__VA_ARGS__);           |          ^~~
fs/cachefiles/content-map.c:252:2: note: in expansion of macro '_enter'
252 |  _enter("%llx,%lx,%x", i_size, size, object->content_map_size);
|  ^~~~~~
fs/cachefiles/content-map.c:252:17: note: format string is defined here
252 |  _enter("%llx,%lx,%x", i_size, size, object->content_map_size);
|               ~~^
|                 |
|                 long unsigned int
|               %x

vim +304 fs/cachefiles/internal.h

9ae326a69004de David Howells 2009-04-03  302  
9ae326a69004de David Howells 2009-04-03  303  #else
12fdff3fc2483f David Howells 2010-08-12 @304  #define _enter(FMT, ...) no_printk("==> %s("FMT")", __func__, ##__VA_ARGS__)
12fdff3fc2483f David Howells 2010-08-12  305  #define _leave(FMT, ...) no_printk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
12fdff3fc2483f David Howells 2010-08-12  306  #define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
9ae326a69004de David Howells 2009-04-03  307  #endif
9ae326a69004de David Howells 2009-04-03  308  

:::::: The code@line 304 was first introduced by commit
:::::: 12fdff3fc2483f906ae6404a6e8dcf2550310b6f Add a dummy printk function for the maintenance of unused printks

:::::: TO: David Howells <dhowells@redhat.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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