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 <l...@intel.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-...@lists.01.org

Attachment: .config.gz
Description: application/gzip

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