Re: [PATCH] reset: mediatek: Move mediatek system clock reset to reset folder

kernel test robot
2022-09-23T01:39:06Z

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

--
0-DAY CI Kernel Test Service