linux-kernel - drivers/usb/cdns3/cdnsp-gadget.c:157:16: sparse: sparse: cast to restricted _

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Message-ID: <202505231647.JddZ6QjR-lkp@intel.com>
Date: Fri, 23 May 2025 16:22:02 +0800
From: kernel test robot <lkp@...el.com>
To: Pawel Laszczak <pawell@...ence.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/usb/cdns3/cdnsp-gadget.c:157:16: sparse: sparse: cast to
 restricted __le32

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   94305e83eccb3120c921cd3a015cd74731140bac
commit: 241e2ce88e5a494be7a5d44c0697592f1632fbee usb: cdnsp: Fix issue with resuming from L1
date:   3 weeks ago
config: i386-randconfig-r122-20250523 (https://download.01.org/0day-ci/archive/20250523/202505231647.JddZ6QjR-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250523/202505231647.JddZ6QjR-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/202505231647.JddZ6QjR-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/usb/cdns3/cdnsp-gadget.c:157:16: sparse: sparse: cast to restricted __le32
>> drivers/usb/cdns3/cdnsp-gadget.c:159:16: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int val @@     got restricted __le32 [usertype] @@
   drivers/usb/cdns3/cdnsp-gadget.c:159:16: sparse:     expected unsigned int val
   drivers/usb/cdns3/cdnsp-gadget.c:159:16: sparse:     got restricted __le32 [usertype]

vim +157 drivers/usb/cdns3/cdnsp-gadget.c

   141	
   142	static void cdnsp_set_apb_timeout_value(struct cdnsp_device *pdev)
   143	{
   144		struct cdns *cdns = dev_get_drvdata(pdev->dev);
   145		__le32 __iomem *reg;
   146		void __iomem *base;
   147		u32 offset = 0;
   148		u32 val;
   149	
   150		if (!cdns->override_apb_timeout)
   151			return;
   152	
   153		base = &pdev->cap_regs->hc_capbase;
   154		offset = cdnsp_find_next_ext_cap(base, offset, D_XEC_PRE_REGS_CAP);
   155		reg = base + offset + REG_CHICKEN_BITS_3_OFFSET;
   156	
 > 157		val  = le32_to_cpu(readl(reg));
   158		val = CHICKEN_APB_TIMEOUT_SET(val, cdns->override_apb_timeout);
 > 159		writel(cpu_to_le32(val), reg);
   160	}
   161	

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