* [ukleinek:pwm/for-nexxt 26/26] drivers/pwm/pwm-apple.c:125:8: error: call to undeclared function 'devm_clk_rate_exclusive_get'; ISO C99 and later do not support implicit function declarations
@ 2024-03-31 19:00 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-03-31 19:00 UTC (permalink / raw)
To: Uwe Kleine-König; +Cc: llvm, oe-kbuild-all
tree: https://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux.git pwm/for-nexxt
head: 0bac6aced1c550ec9628e0fa5d98036c6cbc51b4
commit: 0bac6aced1c550ec9628e0fa5d98036c6cbc51b4 [26/26] WIP: pwm: Fix clk rate using clk_rate_exclusive_get()
config: hexagon-randconfig-002-20240331 (https://download.01.org/0day-ci/archive/20240401/202404010249.YO0QV41t-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 546dc2245ffc4cccd0b05b58b7a5955e355a3b27)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240401/202404010249.YO0QV41t-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/202404010249.YO0QV41t-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/pwm/pwm-apple.c:19:
In file included from include/linux/io.h:13:
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-apple.c:19:
In file included from include/linux/io.h:13:
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-apple.c:19:
In file included from include/linux/io.h:13:
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-apple.c:125:8: error: call to undeclared function 'devm_clk_rate_exclusive_get'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
125 | ret = devm_clk_rate_exclusive_get(&pdev->dev, clk);
| ^
drivers/pwm/pwm-apple.c:125:8: 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)
| ^
6 warnings and 1 error generated.
vim +/devm_clk_rate_exclusive_get +125 drivers/pwm/pwm-apple.c
102
103 static int apple_pwm_probe(struct platform_device *pdev)
104 {
105 struct pwm_chip *chip;
106 struct apple_pwm *fpwm;
107 struct clk *clk;
108 int ret;
109
110 chip = devm_pwmchip_alloc(&pdev->dev, 1, sizeof(*fpwm));
111 if (IS_ERR(chip))
112 return PTR_ERR(chip);
113
114 fpwm = to_apple_pwm(chip);
115
116 fpwm->base = devm_platform_ioremap_resource(pdev, 0);
117 if (IS_ERR(fpwm->base))
118 return PTR_ERR(fpwm->base);
119
120 clk = devm_clk_get_enabled(&pdev->dev, NULL);
121 if (IS_ERR(clk))
122 return dev_err_probe(&pdev->dev, PTR_ERR(clk), "unable to get the clock");
123
124 /* Ensure that clk doesn't change behind our back */
> 125 ret = devm_clk_rate_exclusive_get(&pdev->dev, clk);
126 if (ret)
127 return dev_err_probe(&pdev->dev, ret,
128 "unable to lock clock rate");
129
130 /*
131 * Uses the 24MHz system clock on all existing devices, can only
132 * happen if the device tree is broken
133 *
134 * This check is done to prevent an overflow in .apply
135 */
136 fpwm->clkrate = clk_get_rate(clk);
137 if (fpwm->clkrate > NSEC_PER_SEC)
138 return dev_err_probe(&pdev->dev, -EINVAL, "pwm clock out of range");
139
140 chip->ops = &apple_pwm_ops;
141
142 ret = devm_pwmchip_add(&pdev->dev, chip);
143 if (ret < 0)
144 return dev_err_probe(&pdev->dev, ret, "unable to add pwm chip");
145
146 return 0;
147 }
148
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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