Re: [PATCH v3 2/3] fanotify: define struct members to hold response decision context

From: kernel test robot
Date: Tue May 17 2022 - 03:17:33 EST


Hi Richard,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on jack-fs/fsnotify]
[also build test WARNING on linux/master linus/master v5.18-rc7 next-20220516]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/intel-lab-lkp/linux/commits/Richard-Guy-Briggs/fanotify-Allow-user-space-to-pass-back-additional-audit-info/20220517-044904
base: https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git fsnotify
config: m68k-defconfig (https://download.01.org/0day-ci/archive/20220517/202205171541.x3KcGj83-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 11.3.0
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
# https://github.com/intel-lab-lkp/linux/commit/4d1fc23ae264424a2007ef5a3cfc1b4dbc8d82db
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Richard-Guy-Briggs/fanotify-Allow-user-space-to-pass-back-additional-audit-info/20220517-044904
git checkout 4d1fc23ae264424a2007ef5a3cfc1b4dbc8d82db
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash fs/notify/fanotify/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

In file included from include/asm-generic/bug.h:22,
from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/thread_info.h:13,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from arch/m68k/include/asm/irqflags.h:6,
from include/linux/irqflags.h:16,
from arch/m68k/include/asm/atomic.h:6,
from include/linux/atomic.h:7,
from include/linux/rcupdate.h:25,
from include/linux/sysctl.h:26,
from include/linux/fanotify.h:5,
from fs/notify/fanotify/fanotify_user.c:2:
fs/notify/fanotify/fanotify_user.c: In function 'process_access_response':
>> include/linux/kern_levels.h:5:25: warning: format '%lu' expects argument of type 'long unsigned int', but argument 7 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
5 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/printk.h:418:25: note: in definition of macro 'printk_index_wrap'
418 | _p_func(_fmt, ##__VA_ARGS__); \
| ^~~~
include/linux/printk.h:132:17: note: in expansion of macro 'printk'
132 | printk(fmt, ##__VA_ARGS__); \
| ^~~~~~
include/linux/printk.h:576:9: note: in expansion of macro 'no_printk'
576 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~
include/linux/kern_levels.h:15:25: note: in expansion of macro 'KERN_SOH'
15 | #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */
| ^~~~~~~~
include/linux/printk.h:576:19: note: in expansion of macro 'KERN_DEBUG'
576 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~~
fs/notify/fanotify/fanotify_user.c:325:9: note: in expansion of macro 'pr_debug'
325 | pr_debug("%s: group=%p fd=%d response=%u type=%u size=%lu\n", __func__,
| ^~~~~~~~


vim +5 include/linux/kern_levels.h

314ba3520e513a Joe Perches 2012-07-30 4
04d2c8c83d0e3a Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */
04d2c8c83d0e3a Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001'
04d2c8c83d0e3a Joe Perches 2012-07-30 7

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