From: kernel test robot <lkp@intel.com>
To: Alex Markuze <amarkuze@redhat.com>
Cc: oe-kbuild-all@lists.linux.dev, ceph-devel@vger.kernel.org
Subject: [ceph-client:tls_logger 13/13] include/linux/ceph/ceph_debug.h:24:22: warning: '%s' directive output may be truncated writing up to 255 bytes into a region of size 219
Date: Thu, 13 Feb 2025 20:11:15 +0800 [thread overview]
Message-ID: <202502132038.TPFGWJku-lkp@intel.com> (raw)
tree: https://github.com/ceph/ceph-client.git tls_logger
head: cd1e899feeb6a7da55cbb74b9245c8bbb77f82ba
commit: cd1e899feeb6a7da55cbb74b9245c8bbb77f82ba [13/13] cephsun: using a dynamic buffer allocation
config: openrisc-allyesconfig (https://download.01.org/0day-ci/archive/20250213/202502132038.TPFGWJku-lkp@intel.com/config)
compiler: or1k-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250213/202502132038.TPFGWJku-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502132038.TPFGWJku-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from include/linux/ceph/ceph_debug.h:9,
from net/ceph/mon_client.c:2:
net/ceph/mon_client.c: In function '__send_subscribe':
>> include/linux/ceph/ceph_debug.h:24:22: warning: '%s' directive output may be truncated writing up to 255 bytes into a region of size 219 [-Wformat-truncation=]
24 | CEPH_SAN_LOG("%12.12s:%-4d : " fmt, \
| ^~~~~~~~~~~~~~~~~
include/linux/ceph/ceph_san.h:83:33: note: in definition of macro 'CEPH_SAN_LOG'
83 | snprintf(buf, LOG_BUF_SIZE, fmt, ##__VA_ARGS__); \
| ^~~
net/ceph/mon_client.c:367:17: note: in expansion of macro 'dout'
367 | dout("%s %s start %llu flags 0x%x\n", __func__, buf,
| ^~~~
include/linux/ceph/ceph_debug.h:24:22: note: directive argument in the range [0, 255]
24 | CEPH_SAN_LOG("%12.12s:%-4d : " fmt, \
| ^~~~~~~~~~~~~~~~~
include/linux/ceph/ceph_san.h:83:33: note: in definition of macro 'CEPH_SAN_LOG'
83 | snprintf(buf, LOG_BUF_SIZE, fmt, ##__VA_ARGS__); \
| ^~~
net/ceph/mon_client.c:367:17: note: in expansion of macro 'dout'
367 | dout("%s %s start %llu flags 0x%x\n", __func__, buf,
| ^~~~
include/linux/ceph/ceph_san.h:83:5: note: 'snprintf' output between 57 and 332 bytes into a destination of size 256
83 | snprintf(buf, LOG_BUF_SIZE, fmt, ##__VA_ARGS__); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/ceph/ceph_debug.h:24:9: note: in expansion of macro 'CEPH_SAN_LOG'
24 | CEPH_SAN_LOG("%12.12s:%-4d : " fmt, \
| ^~~~~~~~~~~~
net/ceph/mon_client.c:367:17: note: in expansion of macro 'dout'
367 | dout("%s %s start %llu flags 0x%x\n", __func__, buf,
| ^~~~
include/linux/ceph/ceph_san.h:83:5: warning: 'snprintf' argument 7 overlaps destination object 'buf' [-Wrestrict]
83 | snprintf(buf, LOG_BUF_SIZE, fmt, ##__VA_ARGS__); \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/ceph/ceph_debug.h:24:9: note: in expansion of macro 'CEPH_SAN_LOG'
24 | CEPH_SAN_LOG("%12.12s:%-4d : " fmt, \
| ^~~~~~~~~~~~
net/ceph/mon_client.c:367:17: note: in expansion of macro 'dout'
367 | dout("%s %s start %llu flags 0x%x\n", __func__, buf,
| ^~~~
include/linux/ceph/ceph_san.h:82:10: note: destination object referenced by 'restrict'-qualified argument 1 was declared here
82 | char buf[LOG_BUF_SIZE]; \
| ^~~
include/linux/ceph/ceph_debug.h:24:9: note: in expansion of macro 'CEPH_SAN_LOG'
24 | CEPH_SAN_LOG("%12.12s:%-4d : " fmt, \
| ^~~~~~~~~~~~
net/ceph/mon_client.c:367:17: note: in expansion of macro 'dout'
367 | dout("%s %s start %llu flags 0x%x\n", __func__, buf,
| ^~~~
vim +24 include/linux/ceph/ceph_debug.h
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 12
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 13 /*
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 14 * wrap pr_debug to include a filename:lineno prefix on each line.
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 15 * this incurs some overhead (kernel size and execution time) due to
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 16 * the extra function call at each call site.
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 17 */
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 18
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 19 # if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 20 # define dout(fmt, ...) \
3d14c5d2b6e15c include/linux/ceph/ceph_debug.h Yehuda Sadeh 2010-04-06 21 pr_debug("%.*s %12.12s:%-4d:" fmt, \
04fa82972277cd include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-11 22 8 - (int)sizeof(KBUILD_MODNAME), " ", \
04fa82972277cd include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-11 23 kbasename(__FILE__), __LINE__, ##__VA_ARGS__); \
866762b26eb7fd include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-12 @24 CEPH_SAN_LOG("%12.12s:%-4d : " fmt, \
6f4dbd149d2a15 include/linux/ceph/ceph_debug.h Ilya Dryomov 2017-05-19 25 kbasename(__FILE__), __LINE__, ##__VA_ARGS__)
5c5f0d2b5f92c4 include/linux/ceph/ceph_debug.h Xiubo Li 2023-06-09 26 # define doutc(client, fmt, ...) \
5c5f0d2b5f92c4 include/linux/ceph/ceph_debug.h Xiubo Li 2023-06-09 27 pr_debug("%.*s %12.12s:%-4d : [%pU %llu] " fmt, \
04fa82972277cd include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-11 28 8 - (int)sizeof(KBUILD_MODNAME), " ", \
04fa82972277cd include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-11 29 kbasename(__FILE__), __LINE__, \
04fa82972277cd include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-11 30 &client->fsid, client->monc.auth->global_id, \
04fa82972277cd include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-11 31 ##__VA_ARGS__); \
ab4d8f9713554f include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-12 32 CEPH_SAN_LOG("%12.12s:%-4d:" fmt, \
ab4d8f9713554f include/linux/ceph/ceph_debug.h Alex Markuze 2025-02-12 33 kbasename(__FILE__), __LINE__, ##__VA_ARGS__)
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 34 # else
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 35 /* faux printk call just to see any compiler warnings. */
b37cafacbf98ea include/linux/ceph/ceph_debug.h Geert Uytterhoeven 2024-02-28 36 # define dout(fmt, ...) \
b37cafacbf98ea include/linux/ceph/ceph_debug.h Geert Uytterhoeven 2024-02-28 37 no_printk(KERN_DEBUG fmt, ##__VA_ARGS__)
b37cafacbf98ea include/linux/ceph/ceph_debug.h Geert Uytterhoeven 2024-02-28 38 # define doutc(client, fmt, ...) \
b37cafacbf98ea include/linux/ceph/ceph_debug.h Geert Uytterhoeven 2024-02-28 39 no_printk(KERN_DEBUG "[%pU %llu] " fmt, \
5c5f0d2b5f92c4 include/linux/ceph/ceph_debug.h Xiubo Li 2023-06-09 40 &client->fsid, \
5c5f0d2b5f92c4 include/linux/ceph/ceph_debug.h Xiubo Li 2023-06-09 41 client->monc.auth->global_id, \
b37cafacbf98ea include/linux/ceph/ceph_debug.h Geert Uytterhoeven 2024-02-28 42 ##__VA_ARGS__)
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 43 # endif
de57606c23afde fs/ceph/ceph_debug.h Sage Weil 2009-10-06 44
:::::: The code at line 24 was first introduced by commit
:::::: 866762b26eb7fd11c6fcbb9aaaad9a4a232968c9 minor cosmetics
:::::: TO: Alex Markuze <amarkuze@redhat.com>
:::::: CC: Alex Markuze <amarkuze@redhat.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-02-13 12:11 UTC|newest]
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