drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:394:38: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size between 5 and 20
From: kernel test robot
Date: Sat Dec 09 2023 - 20:42:24 EST
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 21b73ffcc62ab772bc06e3e90bd87eff5e9e8ed4
commit: d0a3ac549f389c1511a4df0d7638536305205d20 ubsan: enable for all*config builds
date: 3 years ago
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20231210/202312100937.ZPZCARhB-lkp@xxxxxxxxx/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231210/202312100937.ZPZCARhB-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312100937.ZPZCARhB-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c: In function 'cxgb_up':
>> drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:394:38: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size between 5 and 20 [-Wformat-truncation=]
394 | "%s-%d", d->name, pi->first_qset + i);
| ^~
In function 'name_msix_vecs',
inlined from 'cxgb_up' at drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:1264:3:
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:394:34: note: directive argument in the range [-2147483641, 509]
394 | "%s-%d", d->name, pi->first_qset + i);
| ^~~~~~~
drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c:393:25: note: 'snprintf' output between 3 and 28 bytes into a destination of size 21
393 | snprintf(adap->msix_info[msi_idx].desc, n,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
394 | "%s-%d", d->name, pi->first_qset + i);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
drivers/net/ethernet/amd/xgbe/xgbe-drv.c: In function 'xgbe_alloc_channels':
>> drivers/net/ethernet/amd/xgbe/xgbe-drv.c:211:73: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size 8 [-Wformat-truncation=]
211 | snprintf(channel->name, sizeof(channel->name), "channel-%u", i);
| ^~
drivers/net/ethernet/amd/xgbe/xgbe-drv.c:211:64: note: directive argument in the range [0, 4294967294]
211 | snprintf(channel->name, sizeof(channel->name), "channel-%u", i);
| ^~~~~~~~~~~~
drivers/net/ethernet/amd/xgbe/xgbe-drv.c:211:17: note: 'snprintf' output between 10 and 19 bytes into a destination of size 16
211 | snprintf(channel->name, sizeof(channel->name), "channel-%u", i);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +394 drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 377
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 378 /*
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 379 * Name the MSI-X interrupts.
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 380 */
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 381 static void name_msix_vecs(struct adapter *adap)
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 382 {
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 383 int i, j, msi_idx = 1, n = sizeof(adap->msix_info[0].desc) - 1;
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 384
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 385 snprintf(adap->msix_info[0].desc, n, "%s", adap->name);
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 386 adap->msix_info[0].desc[n] = 0;
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 387
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 388 for_each_port(adap, j) {
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 389 struct net_device *d = adap->port[j];
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 390 const struct port_info *pi = netdev_priv(d);
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 391
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 392 for (i = 0; i < pi->nqsets; i++, msi_idx++) {
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 393 snprintf(adap->msix_info[msi_idx].desc, n,
8c26376112fb4b drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2008-10-08 @394 "%s-%d", d->name, pi->first_qset + i);
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 395 adap->msix_info[msi_idx].desc[n] = 0;
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 396 }
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 397 }
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 398 }
4d22de3e6cc4a0 drivers/net/cxgb3/cxgb3_main.c Divy Le Ray 2007-01-18 399
:::::: The code at line 394 was first introduced by commit
:::::: 8c26376112fb4b8dfea42069b602c03d53366052 cxgb3: Allocate multiqueues at init time
:::::: TO: Divy Le Ray <divy@xxxxxxxxxxx>
:::::: CC: David S. Miller <davem@xxxxxxxxxxxxx>
--
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https://github.com/intel/lkp-tests/wiki