Messages in this thread | | | Date | Fri, 3 Nov 2023 08:45:33 +0800 | From | kernel test robot <> | Subject | drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:125:50: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4652b8e4f3ffa48c706ec334f048c217a7d9750d commit: 353d5c241e83c4de04ca5ec0d7922bfb0809aa25 dmaengine: dw-edma: Add HDMA DebugFS support date: 5 months ago config: parisc-randconfig-001-20231102 (https://download.01.org/0day-ci/archive/20231103/202311030809.CjufIFaP-lkp@intel.com/config) compiler: hppa-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231103/202311030809.CjufIFaP-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/202311030809.CjufIFaP-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/dma/dw-edma/dw-hdma-v0-debugfs.c: In function 'dw_hdma_v0_debugfs_on': >> drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:125:50: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Wformat-truncation=] 125 | snprintf(name, sizeof(name), "%s:%d", CHANNEL_STR, i); | ^~ In function 'dw_hdma_debugfs_regs_wr', inlined from 'dw_hdma_debugfs_regs' at drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:156:2, inlined from 'dw_hdma_v0_debugfs_on' at drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:169:2: drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:125:46: note: directive argument in the range [-2147483641, 65534] 125 | snprintf(name, sizeof(name), "%s:%d", CHANNEL_STR, i); | ^~~~~~~ drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:125:17: note: 'snprintf' output between 10 and 20 bytes into a destination of size 16 125 | snprintf(name, sizeof(name), "%s:%d", CHANNEL_STR, i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/dma/dw-edma/dw-hdma-v0-debugfs.c: In function 'dw_hdma_v0_debugfs_on': drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:142:50: warning: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Wformat-truncation=] 142 | snprintf(name, sizeof(name), "%s:%d", CHANNEL_STR, i); | ^~ In function 'dw_hdma_debugfs_regs_rd', inlined from 'dw_hdma_debugfs_regs' at drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:157:2, inlined from 'dw_hdma_v0_debugfs_on' at drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:169:2: drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:142:46: note: directive argument in the range [-2147483641, 65534] 142 | snprintf(name, sizeof(name), "%s:%d", CHANNEL_STR, i); | ^~~~~~~ drivers/dma/dw-edma/dw-hdma-v0-debugfs.c:142:17: note: 'snprintf' output between 10 and 20 bytes into a destination of size 16 142 | snprintf(name, sizeof(name), "%s:%d", CHANNEL_STR, i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +125 drivers/dma/dw-edma/dw-hdma-v0-debugfs.c
115 116 static void dw_hdma_debugfs_regs_wr(struct dw_edma *dw, struct dentry *dent) 117 { 118 struct dentry *regs_dent, *ch_dent; 119 char name[16]; 120 int i; 121 122 regs_dent = debugfs_create_dir(WRITE_STR, dent); 123 124 for (i = 0; i < dw->wr_ch_cnt; i++) { > 125 snprintf(name, sizeof(name), "%s:%d", CHANNEL_STR, i); 126 127 ch_dent = debugfs_create_dir(name, regs_dent); 128 129 dw_hdma_debugfs_regs_ch(dw, EDMA_DIR_WRITE, i, ch_dent); 130 } 131 } 132
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