tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4f3e012d4cfd1d9bf837870c961f462ca9f23ebe commit: d7333f9d33772ba93f0144b1e3969866f80fdb9a [11947/12283] dmaengine: cirrus: use snprintf() to calm down gcc 13.3.0 config: arm-ep93xx_defconfig (https://download.01.org/0day-ci/archive/20240917/202409172024.pU8U5beA-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 13.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240917/202409172024.pU8U5beA-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/202409172024.pU8U5beA-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/dma/ep93xx_dma.c: In function 'ep93xx_dma_of_probe': >> drivers/dma/ep93xx_dma.c:1409:74: warning: '%u' directive output may be truncated writing between 1 and 8 bytes into a region of size 2 [-Wformat-truncation=] 1409 | snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i); | ^~ drivers/dma/ep93xx_dma.c:1409:70: note: directive argument in the range [0, 20259280] 1409 | snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i); | ^~~~~~~ drivers/dma/ep93xx_dma.c:1409:25: note: 'snprintf' output between 5 and 12 bytes into a destination of size 5 1409 | snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/dma/ep93xx_dma.c:1407:74: warning: '%u' directive output may be truncated writing between 1 and 8 bytes into a region of size 2 [-Wformat-truncation=] 1407 | snprintf(dma_clk_name, sizeof(dma_clk_name), "m2m%u", i); | ^~ drivers/dma/ep93xx_dma.c:1407:70: note: directive argument in the range [0, 20259280] 1407 | snprintf(dma_clk_name, sizeof(dma_clk_name), "m2m%u", i); | ^~~~~~~ drivers/dma/ep93xx_dma.c:1407:25: note: 'snprintf' output between 5 and 12 bytes into a destination of size 5 1407 | snprintf(dma_clk_name, sizeof(dma_clk_name), "m2m%u", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +1409 drivers/dma/ep93xx_dma.c 1368 1369 static struct ep93xx_dma_engine *ep93xx_dma_of_probe(struct platform_device *pdev) 1370 { 1371 const struct ep93xx_edma_data *data; 1372 struct device *dev = &pdev->dev; 1373 struct ep93xx_dma_engine *edma; 1374 struct dma_device *dma_dev; 1375 char dma_clk_name[5]; 1376 int i; 1377 1378 data = device_get_match_data(dev); 1379 if (!data) 1380 return ERR_PTR(dev_err_probe(dev, -ENODEV, "No device match found\n")); 1381 1382 edma = devm_kzalloc(dev, struct_size(edma, channels, data->num_channels), 1383 GFP_KERNEL); 1384 if (!edma) 1385 return ERR_PTR(-ENOMEM); 1386 1387 edma->m2m = data->id; 1388 edma->num_channels = data->num_channels; 1389 dma_dev = &edma->dma_dev; 1390 1391 INIT_LIST_HEAD(&dma_dev->channels); 1392 for (i = 0; i < edma->num_channels; i++) { 1393 struct ep93xx_dma_chan *edmac = &edma->channels[i]; 1394 1395 edmac->chan.device = dma_dev; 1396 edmac->regs = devm_platform_ioremap_resource(pdev, i); 1397 if (IS_ERR(edmac->regs)) 1398 return edmac->regs; 1399 1400 edmac->irq = fwnode_irq_get(dev_fwnode(dev), i); 1401 if (edmac->irq < 0) 1402 return ERR_PTR(edmac->irq); 1403 1404 edmac->edma = edma; 1405 1406 if (edma->m2m) 1407 snprintf(dma_clk_name, sizeof(dma_clk_name), "m2m%u", i); 1408 else > 1409 snprintf(dma_clk_name, sizeof(dma_clk_name), "m2p%u", i); 1410 1411 edmac->clk = devm_clk_get(dev, dma_clk_name); 1412 if (IS_ERR(edmac->clk)) { 1413 dev_err_probe(dev, PTR_ERR(edmac->clk), 1414 "no %s clock found\n", dma_clk_name); 1415 return ERR_CAST(edmac->clk); 1416 } 1417 1418 spin_lock_init(&edmac->lock); 1419 INIT_LIST_HEAD(&edmac->active); 1420 INIT_LIST_HEAD(&edmac->queue); 1421 INIT_LIST_HEAD(&edmac->free_list); 1422 tasklet_setup(&edmac->tasklet, ep93xx_dma_tasklet); 1423 1424 list_add_tail(&edmac->chan.device_node, 1425 &dma_dev->channels); 1426 } 1427 1428 return edma; 1429 } 1430 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
