Re: [PATCH 1/8] ethosu: Add Arm Ethos-U driver

[kernel test robot]

Hi Alison,

kernel test robot noticed the following build warnings:

[auto build test WARNING on soc/for-next]
[also build test WARNING on linus/master v6.4-rc7 next-20230623]
[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/Alison-Wang/ethosu-Add-Arm-Ethos-U-driver/20230616-141036
base:   https://git.kernel.org/pub/scm/linux/kernel/git/soc/soc.git for-next
patch link:    https://lore.kernel.org/r/20230616055913.2360-2-alison.wang%40nxp.com
patch subject: [PATCH 1/8] ethosu: Add Arm Ethos-U driver
config: mips-randconfig-s032-20230625 (https://download.01.org/0day-ci/archive/20230625/202306250204.6o8RGyDl-lkp@xxxxxxxxx/config)
compiler: mipsel-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230625/202306250204.6o8RGyDl-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306250204.6o8RGyDl-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/firmware/ethosu/ethosu_inference.c:54:28: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __poll_t ( *poll )( ... ) @@     got unsigned int ( * )( ... ) @@
   drivers/firmware/ethosu/ethosu_inference.c:54:28: sparse:     expected restricted __poll_t ( *poll )( ... )
   drivers/firmware/ethosu/ethosu_inference.c:54:28: sparse:     got unsigned int ( * )( ... )
   drivers/firmware/ethosu/ethosu_inference.c:361:44: sparse: sparse: non size-preserving integer to pointer cast

vim +54 drivers/firmware/ethosu/ethosu_inference.c

    37	
    38	/****************************************************************************
    39	 * Variables
    40	 ****************************************************************************/
    41	
    42	static int ethosu_inference_release(struct inode *inode,
    43					    struct file *file);
    44	
    45	static unsigned int ethosu_inference_poll(struct file *file,
    46						  poll_table *wait);
    47	
    48	static long ethosu_inference_ioctl(struct file *file,
    49					   unsigned int cmd,
    50					   unsigned long arg);
    51	
    52	static const struct file_operations ethosu_inference_fops = {
    53		.release        = &ethosu_inference_release,
  > 54		.poll           = &ethosu_inference_poll,
    55		.unlocked_ioctl = &ethosu_inference_ioctl,
    56	#ifdef CONFIG_COMPAT
    57		.compat_ioctl   = &ethosu_inference_ioctl,
    58	#endif
    59	};
    60	

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