tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 26074e1be23143b2388cacb36166766c235feb7c commit: 50d05a09e8474fa4768ffd39cce6af7f73cf003b [1131/2169] pwm: stm32: Fix for settings using period > UINT32_MAX config: hexagon-randconfig-001-20240326 (https://download.01.org/0day-ci/archive/20240327/202403272205.UKAQzc7v-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 23de3862dce582ce91c1aa914467d982cb1a73b4) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240327/202403272205.UKAQzc7v-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/202403272205.UKAQzc7v-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/pwm/pwm-stm32.c:12: In file included from include/linux/mfd/stm32-timers.h:11: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2208: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/pwm/pwm-stm32.c:12: In file included from include/linux/mfd/stm32-timers.h:11: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/pwm/pwm-stm32.c:12: In file included from include/linux/mfd/stm32-timers.h:11: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/pwm/pwm-stm32.c:12: In file included from include/linux/mfd/stm32-timers.h:11: In file included from include/linux/dmaengine.h:12: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ drivers/pwm/pwm-stm32.c:327:9: warning: variable 'prd' is uninitialized when used here [-Wuninitialized] 327 | div = prd; | ^~~ drivers/pwm/pwm-stm32.c:314:24: note: initialize the variable 'prd' to silence this warning 314 | unsigned long long prd, div, dty; | ^ | = 0 >> drivers/pwm/pwm-stm32.c:662:8: error: call to undeclared function 'devm_clk_rate_exclusive_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 662 | ret = devm_clk_rate_exclusive_get(dev, priv->clk); | ^ drivers/pwm/pwm-stm32.c:662:8: note: did you mean 'clk_rate_exclusive_get'? include/linux/clk.h:284:19: note: 'clk_rate_exclusive_get' declared here 284 | static inline int clk_rate_exclusive_get(struct clk *clk) | ^ 8 warnings and 1 error generated. vim +/devm_clk_rate_exclusive_get +662 drivers/pwm/pwm-stm32.c 627 628 static int stm32_pwm_probe(struct platform_device *pdev) 629 { 630 struct device *dev = &pdev->dev; 631 struct device_node *np = dev->of_node; 632 struct stm32_timers *ddata = dev_get_drvdata(pdev->dev.parent); 633 struct pwm_chip *chip; 634 struct stm32_pwm *priv; 635 unsigned int npwm, num_enabled; 636 unsigned int i; 637 int ret; 638 639 npwm = stm32_pwm_detect_channels(ddata->regmap, &num_enabled); 640 641 chip = devm_pwmchip_alloc(dev, npwm, sizeof(*priv)); 642 if (IS_ERR(chip)) 643 return PTR_ERR(chip); 644 priv = to_stm32_pwm_dev(chip); 645 646 mutex_init(&priv->lock); 647 priv->regmap = ddata->regmap; 648 priv->clk = ddata->clk; 649 priv->max_arr = ddata->max_arr; 650 651 if (!priv->regmap || !priv->clk) 652 return dev_err_probe(dev, -EINVAL, "Failed to get %s\n", 653 priv->regmap ? "clk" : "regmap"); 654 655 ret = stm32_pwm_probe_breakinputs(priv, np); 656 if (ret) 657 return dev_err_probe(dev, ret, 658 "Failed to configure breakinputs\n"); 659 660 stm32_pwm_detect_complementary(priv); 661 > 662 ret = devm_clk_rate_exclusive_get(dev, priv->clk); 663 if (ret) 664 return dev_err_probe(dev, ret, "Failed to lock clock\n"); 665 666 /* 667 * With the clk running with not more than 1 GHz the calculations in 668 * .apply() won't overflow. 669 */ 670 if (clk_get_rate(priv->clk) > 1000000000) 671 return dev_err_probe(dev, -EINVAL, "Failed to lock clock\n"); 672 673 chip->ops = &stm32pwm_ops; 674 675 /* Initialize clock refcount to number of enabled PWM channels. */ 676 for (i = 0; i < num_enabled; i++) 677 clk_enable(priv->clk); 678 679 ret = devm_pwmchip_add(dev, chip); 680 if (ret < 0) 681 return dev_err_probe(dev, ret, 682 "Failed to register pwmchip\n"); 683 684 platform_set_drvdata(pdev, chip); 685 686 return 0; 687 } 688 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
