linux-kernel - drivers/misc/xilinx_sdfec.c:736:15: sparse: sparse: incorrect type in argument 2 (different address spaces)

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Message-ID: <202005282215.JgCN7ZJJ%lkp@intel.com>
Date:   Thu, 28 May 2020 22:56:17 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: drivers/misc/xilinx_sdfec.c:736:15: sparse: sparse: incorrect type
 in argument 2 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b0c3ba31be3e45a130e13b278cf3b90f69bda6f6
commit: a6b07e89fd8530b943217ccd4909d1bf65acc45d misc: xilinx_sdfec: add missing __user annotation
date:   5 months ago
config: m68k-randconfig-s031-20200528 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-240-gf0fe1cd9-dirty
        git checkout a6b07e89fd8530b943217ccd4909d1bf65acc45d
        # save the attached .config to linux build tree
        make W=1 C=1 ARCH=m68k CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)

   drivers/misc/xilinx_sdfec.c:736:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:736:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:736:15: sparse: sparse: cast removes address space '<asn:1>' of expression
>> drivers/misc/xilinx_sdfec.c:736:15: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const * @@     got unsigned int enum xsdfec_order [noderef] <asn:1> * @@
   drivers/misc/xilinx_sdfec.c:736:15: sparse:     expected void const *
   drivers/misc/xilinx_sdfec.c:736:15: sparse:     got unsigned int enum xsdfec_order [noderef] <asn:1> *
   drivers/misc/xilinx_sdfec.c:761:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:761:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:761:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:761:15: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const * @@     got bool [noderef] [usertype] <asn:1> *arg @@
   drivers/misc/xilinx_sdfec.c:761:15: sparse:     expected void const *
   drivers/misc/xilinx_sdfec.c:761:15: sparse:     got bool [noderef] [usertype] <asn:1> *arg
   drivers/misc/xilinx_sdfec.c:788:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:788:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:788:15: sparse: sparse: cast removes address space '<asn:1>' of expression
   drivers/misc/xilinx_sdfec.c:788:15: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void * @@     got bool [noderef] [usertype] <asn:1> *arg @@
   drivers/misc/xilinx_sdfec.c:788:15: sparse:     expected void *
   drivers/misc/xilinx_sdfec.c:788:15: sparse:     got bool [noderef] [usertype] <asn:1> *arg
   drivers/misc/xilinx_sdfec.c:1057:17: sparse: sparse: incorrect type in initializer (different base types) @@     expected restricted __poll_t ( *poll )( ... ) @@     got unsigned int ( * )( ... ) @@
   drivers/misc/xilinx_sdfec.c:1057:17: sparse:     expected restricted __poll_t ( *poll )( ... )
   drivers/misc/xilinx_sdfec.c:1057:17: sparse:     got unsigned int ( * )( ... )

vim +736 drivers/misc/xilinx_sdfec.c

   729	
   730	static int xsdfec_set_order(struct xsdfec_dev *xsdfec, void __user *arg)
   731	{
   732		bool order_invalid;
   733		enum xsdfec_order order;
   734		int err;
   735	
 > 736		err = get_user(order, (enum xsdfec_order __user *)arg);
   737		if (err)
   738			return -EFAULT;
   739	
   740		order_invalid = (order != XSDFEC_MAINTAIN_ORDER) &&
   741				(order != XSDFEC_OUT_OF_ORDER);
   742		if (order_invalid)
   743			return -EINVAL;
   744	
   745		/* Verify Device has not started */
   746		if (xsdfec->state == XSDFEC_STARTED)
   747			return -EIO;
   748	
   749		xsdfec_regwrite(xsdfec, XSDFEC_ORDER_ADDR, order);
   750	
   751		xsdfec->config.order = order;
   752	
   753		return 0;
   754	}
   755	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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