Re: [linux-next:master 5852/7483] drivers/net/wireless/purelifi/plfxlc/chip.c:33:14: sparse: sparse: cast to restricted __le16

[Kalle Valo <kvalo@kernel.org>]

+ linux-wireless

kernel test robot <lkp@intel.com> writes:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head:   bdc61aad77faf67187525028f1f355eff3849f22
> commit: 68d57a07bfe5bb29b80cd8b8fa24c9d1ea104124 [5852/7483] wireless:
> add plfxlc driver for pureLiFi X, XL, XC devices
> config: alpha-allmodconfig
> (https://download.01.org/0day-ci/archive/20220429/202204290641.UGDfvg2b-lkp@intel.com/config)
> compiler: alpha-linux-gcc (GCC) 11.3.0
> reproduce:
>         wget
> https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross
> -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # apt-get install sparse
>         # sparse version: v0.6.4-dirty
>         #
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=68d57a07bfe5bb29b80cd8b8fa24c9d1ea104124
>         git remote add linux-next
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
>         git fetch --no-tags linux-next master
>         git checkout 68d57a07bfe5bb29b80cd8b8fa24c9d1ea104124
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0
> make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir
> ARCH=alpha SHELL=/bin/bash drivers/net/wireless/purelifi/plfxlc/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
>>> drivers/net/wireless/purelifi/plfxlc/chip.c:33:14: sparse: sparse:
>>> cast to restricted __le16
>>> drivers/net/wireless/purelifi/plfxlc/chip.c:36:31: sparse: sparse:
>>> incorrect type in assignment (different base types) @@ expected
>>> unsigned short [usertype] beacon_interval @@ got restricted __le16
>>> [usertype] @@
>    drivers/net/wireless/purelifi/plfxlc/chip.c:36:31: sparse:     expected unsigned short [usertype] beacon_interval
>    drivers/net/wireless/purelifi/plfxlc/chip.c:36:31: sparse:     got restricted __le16 [usertype]
>
> vim +33 drivers/net/wireless/purelifi/plfxlc/chip.c
>
>     27	
>     28	int plfxlc_set_beacon_interval(struct plfxlc_chip *chip, u16 interval,
>     29				       u8 dtim_period, int type)
>     30	{
>     31		if (!interval ||
>     32		    (chip->beacon_set &&
>   > 33		     le16_to_cpu(chip->beacon_interval) == interval))
>     34			return 0;
>     35	
>   > 36		chip->beacon_interval = cpu_to_le16(interval);
>     37		chip->beacon_set = true;
>     38		return plfxlc_usb_wreq(chip->usb.ez_usb,
>     39				       &chip->beacon_interval,
>     40				       sizeof(chip->beacon_interval),
>     41				       USB_REQ_BEACON_INTERVAL_WR);
>     42	}
>     43	

Srinivasan, please submit a patch to fix this.

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