drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c:535:36: warning: '%d' directive writing between 1 and 11 bytes into a region of size 7
From: kernel test robot
Date: Sat Nov 04 2023 - 07:48:59 EST
Hi Geetha,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 90b0c2b2edd1adff742c621e246562fbefa11b70
commit: d06c2aba51631bf6cd32a2f8f1edd67c110ade8a octeontx2-af: cn10k: mcs: Add debugfs support
date: 1 year, 1 month ago
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20231104/202311041952.XgfdAuan-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/20231104/202311041952.XgfdAuan-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/202311041952.XgfdAuan-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c: In function 'rvu_dbg_mcs_init':
>> drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c:535:36: warning: '%d' directive writing between 1 and 11 bytes into a region of size 7 [-Wformat-overflow=]
535 | sprintf(dname, "mcs%d", i);
| ^~
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c:535:32: note: directive argument in the range [-2147483641, 2147483646]
535 | sprintf(dname, "mcs%d", i);
| ^~~~~~~
drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c:535:17: note: 'sprintf' output between 5 and 15 bytes into a destination of size 10
535 | sprintf(dname, "mcs%d", i);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
vim +535 drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
520
521 static void rvu_dbg_mcs_init(struct rvu *rvu)
522 {
523 struct mcs *mcs;
524 char dname[10];
525 int i;
526
527 if (!rvu->mcs_blk_cnt)
528 return;
529
530 rvu->rvu_dbg.mcs_root = debugfs_create_dir("mcs", rvu->rvu_dbg.root);
531
532 for (i = 0; i < rvu->mcs_blk_cnt; i++) {
533 mcs = mcs_get_pdata(i);
534
> 535 sprintf(dname, "mcs%d", i);
536 rvu->rvu_dbg.mcs = debugfs_create_dir(dname,
537 rvu->rvu_dbg.mcs_root);
538
539 rvu->rvu_dbg.mcs_rx = debugfs_create_dir("rx_stats", rvu->rvu_dbg.mcs);
540
541 debugfs_create_file("flowid", 0600, rvu->rvu_dbg.mcs_rx, mcs,
542 &rvu_dbg_mcs_rx_flowid_stats_fops);
543
544 debugfs_create_file("secy", 0600, rvu->rvu_dbg.mcs_rx, mcs,
545 &rvu_dbg_mcs_rx_secy_stats_fops);
546
547 debugfs_create_file("sc", 0600, rvu->rvu_dbg.mcs_rx, mcs,
548 &rvu_dbg_mcs_rx_sc_stats_fops);
549
550 debugfs_create_file("sa", 0600, rvu->rvu_dbg.mcs_rx, mcs,
551 &rvu_dbg_mcs_rx_sa_stats_fops);
552
553 debugfs_create_file("port", 0600, rvu->rvu_dbg.mcs_rx, mcs,
554 &rvu_dbg_mcs_rx_port_stats_fops);
555
556 rvu->rvu_dbg.mcs_tx = debugfs_create_dir("tx_stats", rvu->rvu_dbg.mcs);
557
558 debugfs_create_file("flowid", 0600, rvu->rvu_dbg.mcs_tx, mcs,
559 &rvu_dbg_mcs_tx_flowid_stats_fops);
560
561 debugfs_create_file("secy", 0600, rvu->rvu_dbg.mcs_tx, mcs,
562 &rvu_dbg_mcs_tx_secy_stats_fops);
563
564 debugfs_create_file("sc", 0600, rvu->rvu_dbg.mcs_tx, mcs,
565 &rvu_dbg_mcs_tx_sc_stats_fops);
566
567 debugfs_create_file("sa", 0600, rvu->rvu_dbg.mcs_tx, mcs,
568 &rvu_dbg_mcs_tx_sa_stats_fops);
569
570 debugfs_create_file("port", 0600, rvu->rvu_dbg.mcs_tx, mcs,
571 &rvu_dbg_mcs_tx_port_stats_fops);
572 }
573 }
574
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki