linux-kernel - drivers/usb/fotg210/fotg210-udc.c:632:17: sparse: sparse: restricted _

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Date: Fri, 5 Jan 2024 12:52:22 +0800
From: kernel test robot <lkp@...el.com>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/usb/fotg210/fotg210-udc.c:632:17: sparse: sparse: restricted
 __le16 degrades to integer

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   1f874787ed9a2d78ed59cb21d0d90ac0178eceb0
commit: 1dd33a9f1b95ab59cd60f14a7a83fed14697867b usb: fotg210: Collect pieces of dual mode controller
date:   1 year, 2 months ago
config: microblaze-randconfig-r091-20230814 (https://download.01.org/0day-ci/archive/20240105/202401051251.541p3ElX-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20240105/202401051251.541p3ElX-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202401051251.541p3ElX-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/usb/fotg210/fotg210-udc.c:632:17: sparse: sparse: restricted __le16 degrades to integer
   drivers/usb/fotg210/fotg210-udc.c:635:51: sparse: sparse: incorrect type in argument 2 (different base types) @@     expected unsigned int [usertype] addr @@     got restricted __le16 [usertype] wValue @@
   drivers/usb/fotg210/fotg210-udc.c:635:51: sparse:     expected unsigned int [usertype] addr
   drivers/usb/fotg210/fotg210-udc.c:635:51: sparse:     got restricted __le16 [usertype] wValue
   drivers/usb/fotg210/fotg210-udc.c:670:33: sparse: sparse: restricted __le16 degrades to integer
   drivers/usb/fotg210/fotg210-udc.c:680:25: sparse: sparse: restricted __le16 degrades to integer
   drivers/usb/fotg210/fotg210-udc.c:716:35: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le16 [usertype] ep0_data @@     got int @@
   drivers/usb/fotg210/fotg210-udc.c:716:35: sparse:     expected restricted __le16 [usertype] ep0_data
   drivers/usb/fotg210/fotg210-udc.c:716:35: sparse:     got int
   drivers/usb/fotg210/fotg210-udc.c:722:29: sparse: sparse: restricted __le16 degrades to integer
   drivers/usb/fotg210/fotg210-udc.c:724:43: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le16 [usertype] ep0_data @@     got int @@
   drivers/usb/fotg210/fotg210-udc.c:724:43: sparse:     expected restricted __le16 [usertype] ep0_data
   drivers/usb/fotg210/fotg210-udc.c:724:43: sparse:     got int

vim +632 drivers/usb/fotg210/fotg210-udc.c

b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  628  
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  629  static void fotg210_set_address(struct fotg210_udc *fotg210,
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  630  				struct usb_ctrlrequest *ctrl)
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  631  {
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30 @632  	if (ctrl->wValue >= 0x0100) {
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  633  		fotg210_request_error(fotg210);
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  634  	} else {
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  635  		fotg210_set_dev_addr(fotg210, ctrl->wValue);
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  636  		fotg210_set_cxdone(fotg210);
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  637  	}
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  638  }
b84a8dee23fd41 drivers/usb/gadget/fotg210-udc.c Yuan-Hsin Chen 2013-05-30  639  

:::::: The code at line 632 was first introduced by commit
:::::: b84a8dee23fd41600a8aebcba1410b5bb5b3bdeb usb: gadget: add Faraday fotg210_udc driver

:::::: TO: Yuan-Hsin Chen <yhchen@...aday-tech.com>
:::::: CC: Felipe Balbi <balbi@...com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki