Messages in this thread | | | Date | Fri, 23 Sep 2022 09:36:16 +0800 | From | kernel test robot <> | Subject | Re: [PATCH] reset: mediatek: Move mediatek system clock reset to reset folder |
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Hi Bo-Chen,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on v6.0-rc6] [also build test WARNING on linus/master] [cannot apply to clk/clk-next pza/reset/next mbgg-mediatek/for-next next-20220921] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Bo-Chen-Chen/reset-mediatek-Move-mediatek-system-clock-reset-to-reset-folder/20220922-221303 base: 521a547ced6477c54b4b0cc206000406c221b4d6 config: s390-randconfig-r044-20220922 (https://download.01.org/0day-ci/archive/20220923/202209230910.DSbTCgBL-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/69ce72445492a02115b1e7c7527a8a107f48aab8 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Bo-Chen-Chen/reset-mediatek-Move-mediatek-system-clock-reset-to-reset-folder/20220922-221303 git checkout 69ce72445492a02115b1e7c7527a8a107f48aab8 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/reset/
If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from drivers/reset/reset-mediatek-sysclk.c:11: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 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] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from drivers/reset/reset-mediatek-sysclk.c:11: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from drivers/reset/reset-mediatek-sysclk.c:11: In file included from include/linux/regmap.h:20: In file included from include/linux/iopoll.h:14: In file included from include/linux/io.h:13: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __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] __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] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:692:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:700:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:708:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:717:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:726:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> drivers/reset/reset-mediatek-sysclk.c:539:5: warning: no previous prototype for function 'mtk_reset_init_with_node' [-Wmissing-prototypes] int mtk_reset_init_with_node(struct device_node *np, const char *name) ^ drivers/reset/reset-mediatek-sysclk.c:539:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int mtk_reset_init_with_node(struct device_node *np, const char *name) ^ static >> drivers/reset/reset-mediatek-sysclk.c:550:6: warning: no previous prototype for function 'mtk_rst_remove_with_node' [-Wmissing-prototypes] void mtk_rst_remove_with_node(struct device_node *np, const char *name) ^ drivers/reset/reset-mediatek-sysclk.c:550:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void mtk_rst_remove_with_node(struct device_node *np, const char *name) ^ static 14 warnings generated.
vim +/mtk_reset_init_with_node +539 drivers/reset/reset-mediatek-sysclk.c
538 > 539 int mtk_reset_init_with_node(struct device_node *np, const char *name) 540 { 541 struct mtk_clk_rst_data *data = find_rst_data(name); 542 543 if (!np || !data) 544 return -EINVAL; 545 546 return register_rst_ctrl_with_node(np, data); 547 } 548 EXPORT_SYMBOL_GPL(mtk_reset_init_with_node); 549 > 550 void mtk_rst_remove_with_node(struct device_node *np, const char *name) 551 { 552 struct mtk_clk_rst_data *data = find_rst_data(name); 553 554 if (!np || !data) 555 return; 556 557 reset_controller_unregister(&data->rcdev); 558 } 559 EXPORT_SYMBOL_GPL(mtk_rst_remove_with_node); 560
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