* Re: [PATCH 1/2] i2c: keba: Add KEBA I2C controller support
[not found] <20240601192846.68146-2-gerhard@engleder-embedded.com>
@ 2024-06-01 23:45 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-06-01 23:45 UTC (permalink / raw)
To: Gerhard Engleder, linux-i2c
Cc: llvm, oe-kbuild-all, andi.shyti, arnd, gregkh, Gerhard Engleder
Hi Gerhard,
kernel test robot noticed the following build warnings:
[auto build test WARNING on andi-shyti/i2c/i2c-host]
[also build test WARNING on char-misc/char-misc-testing char-misc/char-misc-next char-misc/char-misc-linus soc/for-next linus/master v6.10-rc1 next-20240531]
[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/Gerhard-Engleder/i2c-keba-Add-KEBA-I2C-controller-support/20240602-040548
base: git://git.kernel.org/pub/scm/linux/kernel/git/andi.shyti/linux.git i2c/i2c-host
patch link: https://lore.kernel.org/r/20240601192846.68146-2-gerhard%40engleder-embedded.com
patch subject: [PATCH 1/2] i2c: keba: Add KEBA I2C controller support
config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240602/202406020713.qwylbUoh-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project bafda89a0944d947fc4b3b5663185e07a397ac30)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240602/202406020713.qwylbUoh-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/202406020713.qwylbUoh-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/i2c/busses/i2c-keba.c:11:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
548 | val = __raw_readb(PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
561 | 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/i2c/busses/i2c-keba.c:11:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
574 | 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/i2c/busses/i2c-keba.c:11:
In file included from include/linux/io.h:14:
In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
585 | __raw_writeb(value, PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
| ~~~~~~~~~~ ^
In file included from drivers/i2c/busses/i2c-keba.c:13:
In file included from include/linux/i2c.h:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
In file included from include/linux/mm.h:2253:
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> drivers/i2c/busses/i2c-keba.c:568:34: warning: unused variable 'ki2c_devtype' [-Wunused-variable]
568 | static struct platform_device_id ki2c_devtype[] = {
| ^~~~~~~~~~~~
8 warnings generated.
vim +/ki2c_devtype +568 drivers/i2c/busses/i2c-keba.c
567
> 568 static struct platform_device_id ki2c_devtype[] = {
569 { .name = KI2C },
570 { }
571 };
572 MODULE_DEVICE_TABLE(platform, ki2c_devtype);
573
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