drivers/fpga/xilinx-pr-decoupler.c:94:34: warning: unused variable 'xlnx_pr_decoupler_of_match'
kernel test robot
build bottree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 2a860505b617cf8fda4ebff6cf05d3f774145440 commit: 8c966aadcc023c8db7a9d24a3a504a9b39b1202c [10253/10591] fpga: Use device_get_match_data() config: hexagon-randconfig-r021-20221128 (https://download.01.org/0day-ci/archive/20231010/[email protected]/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231010/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>):
In file included from drivers/fpga/xilinx-pr-decoupler.c:11:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:337:
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/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from drivers/fpga/xilinx-pr-decoupler.c:11:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:337:
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/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from drivers/fpga/xilinx-pr-decoupler.c:11:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:337:
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);
~~~~~~~~~~ ^
>> drivers/fpga/xilinx-pr-decoupler.c:94:34: warning: unused variable 'xlnx_pr_decoupler_of_match' [-Wunused-const-variable]
static const struct of_device_id xlnx_pr_decoupler_of_match[] = {
^7 warnings generated.
vim +/xlnx_pr_decoupler_of_match +94 drivers/fpga/xilinx-pr-decoupler.c
30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 93
7e961c12be424c6c Moritz Fischer 2017-03-24 @94 static const struct of_device_id xlnx_pr_decoupler_of_match[] = {
30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 95 { .compatible = "xlnx,pr-decoupler-1.00", .data = &decoupler_config },
30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 96 { .compatible = "xlnx,pr-decoupler", .data = &decoupler_config },
30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 97 { .compatible = "xlnx,dfx-axi-shutdown-manager-1.00",
30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 98 .data = &shutdown_config },
30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 99 { .compatible = "xlnx,dfx-axi-shutdown-manager",
30a2ac9a8bb5fce1 Nava kishore Manne 2021-02-11 100 .data = &shutdown_config },
7e961c12be424c6c Moritz Fischer 2017-03-24 101 {},
7e961c12be424c6c Moritz Fischer 2017-03-24 102 };
7e961c12be424c6c Moritz Fischer 2017-03-24 103 MODULE_DEVICE_TABLE(of, xlnx_pr_decoupler_of_match);7e961c12be424c6c Moritz Fischer 2017-03-24 104
:::::: The code at line 94 was first introduced by commit
:::::: 7e961c12be424c6c1e355d469cc1b82dbf3af718 fpga: Add support for Xilinx LogiCORE PR Decoupler
:::::: TO: Moritz Fischer <[email protected]>
:::::: CC: Greg Kroah-Hartman <[email protected]>
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