Re: [PATCH 1/8] Add Advantech EIO MFD driver

[kernel test robot <lkp@intel.com>]

:::::: 
:::::: Manual check reason: "low confidence static check warning: drivers/mfd/eio_core.c:39:1: sparse: sparse: bad integer constant expression"
:::::: 

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CC: Ramiro Oliveira <ramiro.oliveira@advantech.com>

Hi Ramiro,

kernel test robot noticed the following build warnings:

[auto build test WARNING on d9771d0dbe18dd643760431870a6abf9b0866bb0]

url:    https://github.com/intel-lab-lkp/linux/commits/Ramiro-Oliveira/Add-Advantech-EIO-MFD-driver/20251213-004905
base:   d9771d0dbe18dd643760431870a6abf9b0866bb0
patch link:    https://lore.kernel.org/r/20251212-upstream-v1-v1-1-d50d40ec8d8a%40advantech.com
patch subject: [PATCH 1/8] Add Advantech EIO MFD driver
:::::: branch date: 30 hours ago
:::::: commit date: 30 hours ago
config: powerpc-randconfig-r123-20251213 (https://download.01.org/0day-ci/archive/20251214/202512140653.VFtpkQVM-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251214/202512140653.VFtpkQVM-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/r/202512140653.VFtpkQVM-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/mfd/eio_core.c:39:1: sparse: sparse: bad integer constant expression
   drivers/mfd/eio_core.c:39:1: sparse: sparse: static assertion failed: "MODULE_INFO(parmtype, ...) contains embedded NUL byte"
   drivers/mfd/eio_core.c:40:1: sparse: sparse: bad integer constant expression
   drivers/mfd/eio_core.c:40:1: sparse: sparse: static assertion failed: "MODULE_INFO(parm, ...) contains embedded NUL byte"
   drivers/mfd/eio_core.c:618:1: sparse: sparse: bad integer constant expression
   drivers/mfd/eio_core.c:618:1: sparse: sparse: static assertion failed: "MODULE_INFO(author, ...) contains embedded NUL byte"
   drivers/mfd/eio_core.c:619:1: sparse: sparse: bad integer constant expression
   drivers/mfd/eio_core.c:619:1: sparse: sparse: static assertion failed: "MODULE_INFO(author, ...) contains embedded NUL byte"
   drivers/mfd/eio_core.c:620:1: sparse: sparse: bad integer constant expression
   drivers/mfd/eio_core.c:620:1: sparse: sparse: static assertion failed: "MODULE_INFO(description, ...) contains embedded NUL byte"
   drivers/mfd/eio_core.c:621:1: sparse: sparse: bad integer constant expression
   drivers/mfd/eio_core.c:621:1: sparse: sparse: static assertion failed: "MODULE_INFO(file, ...) contains embedded NUL byte"
   drivers/mfd/eio_core.c:621:1: sparse: sparse: bad integer constant expression
   drivers/mfd/eio_core.c:621:1: sparse: sparse: static assertion failed: "MODULE_INFO(license, ...) contains embedded NUL byte"

vim +39 drivers/mfd/eio_core.c

3265ff741af01a Ramiro Oliveira 2025-12-12  29  
3265ff741af01a Ramiro Oliveira 2025-12-12  30  /**
3265ff741af01a Ramiro Oliveira 2025-12-12  31   * Timeout: Default timeout in microseconds when a PMC command's
3265ff741af01a Ramiro Oliveira 2025-12-12  32   * timeout is unspecified. PMC command responses typically range
3265ff741af01a Ramiro Oliveira 2025-12-12  33   * from 200us to 2ms. 5ms is quite a safe value for timeout. In
3265ff741af01a Ramiro Oliveira 2025-12-12  34   * In some cases, responses are longer. In such situations, please
3265ff741af01a Ramiro Oliveira 2025-12-12  35   * adding the timeout parameter loading related sub-drivers or
3265ff741af01a Ramiro Oliveira 2025-12-12  36   * this core driver (not recommended).
3265ff741af01a Ramiro Oliveira 2025-12-12  37   */
3265ff741af01a Ramiro Oliveira 2025-12-12  38  static uint timeout = DEFAULT_TIMEOUT;
3265ff741af01a Ramiro Oliveira 2025-12-12 @39  module_param(timeout, uint, 0444);
3265ff741af01a Ramiro Oliveira 2025-12-12  40  MODULE_PARM_DESC(timeout, "Default PMC command timeout in usec.\n");
3265ff741af01a Ramiro Oliveira 2025-12-12  41  

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