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Date: Fri, 17 Mar 2023 14:59:38 +0800
From: kernel test robot <lkp@...el.com>
To: Khadija Kamran <kamrankhadijadj@...il.com>,
outreachy@...ts.linux.dev
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5] staging: axis-fifo: initialize timeouts in probe only
Hi Khadija,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on staging/staging-testing]
url: https://github.com/intel-lab-lkp/linux/commits/Khadija-Kamran/staging-axis-fifo-initialize-timeouts-in-probe-only/20230316-205814
patch link: https://lore.kernel.org/r/ZBMR4s8xyHGqMm72%40khadija-virtual-machine
patch subject: [PATCH v5] staging: axis-fifo: initialize timeouts in probe only
config: hexagon-randconfig-r033-20230312 (https://download.01.org/0day-ci/archive/20230317/202303171454.sScrVVOh-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
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
# https://github.com/intel-lab-lkp/linux/commit/7e359baa2318b55e12a0c099b75fbd0d799907cf
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Khadija-Kamran/staging-axis-fifo-initialize-timeouts-in-probe-only/20230316-205814
git checkout 7e359baa2318b55e12a0c099b75fbd0d799907cf
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/staging/axis-fifo/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303171454.sScrVVOh-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/staging/axis-fifo/axis-fifo.c:25:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/staging/axis-fifo/axis-fifo.c:25:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/staging/axis-fifo/axis-fifo.c:25:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/staging/axis-fifo/axis-fifo.c:958:3: warning: format specifies type 'int' but the argument has type 'long' [-Wformat]
read_timeout, write_timeout);
^~~~~~~~~~~~
include/linux/printk.h:528:34: note: expanded from macro 'pr_info'
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:455:60: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
~~~~ ^~~~~~~~~~~
drivers/staging/axis-fifo/axis-fifo.c:958:17: warning: format specifies type 'int' but the argument has type 'long' [-Wformat]
read_timeout, write_timeout);
^~~~~~~~~~~~~
include/linux/printk.h:528:34: note: expanded from macro 'pr_info'
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:455:60: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
~~~~ ^~~~~~~~~~~
8 warnings generated.
vim +958 drivers/staging/axis-fifo/axis-fifo.c
4a965c5f89decd Jacob Feder 2018-07-22 954
4a965c5f89decd Jacob Feder 2018-07-22 955 static int __init axis_fifo_init(void)
4a965c5f89decd Jacob Feder 2018-07-22 956 {
4a965c5f89decd Jacob Feder 2018-07-22 957 pr_info("axis-fifo driver loaded with parameters read_timeout = %i, write_timeout = %i\n",
4a965c5f89decd Jacob Feder 2018-07-22 @958 read_timeout, write_timeout);
4a965c5f89decd Jacob Feder 2018-07-22 959 return platform_driver_register(&axis_fifo_driver);
4a965c5f89decd Jacob Feder 2018-07-22 960 }
4a965c5f89decd Jacob Feder 2018-07-22 961
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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