Messages in this thread | | | Date | Sun, 25 Jul 2021 06:18:07 +0800 | From | kernel test robot <> | Subject | [hch-misc:i915-mdev 40/40] drivers/vfio/vfio.c:1649:10: warning: incompatible integer to pointer conversion returning 'int' from a function with result type 'struct vfio_group *' |
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tree: git://git.infradead.org/users/hch/misc.git i915-mdev head: 3e7e1da34feaeb5473f397c9cab73b4eb7f6a33c commit: 3e7e1da34feaeb5473f397c9cab73b4eb7f6a33c [40/40] vfio: improve vfio_group_get_external_user config: arm-buildonly-randconfig-r004-20210725 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 3f2c1e99e44d028d5e9dd685f3c568f2661f2f68) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi git remote add hch-misc git://git.infradead.org/users/hch/misc.git git fetch --no-tags hch-misc i915-mdev git checkout 3e7e1da34feaeb5473f397c9cab73b4eb7f6a33c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/vfio/vfio.c:1649:10: warning: incompatible integer to pointer conversion returning 'int' from a function with result type 'struct vfio_group *' [-Wint-conversion] return -EBADF; ^~~~~~ 1 warning generated.
vim +1649 drivers/vfio/vfio.c
1630 1631 /** 1632 * vfio_group_container_acquire_fd - acquire access to a VFIO container 1633 * by file descriptor 1634 * @fd: file descriptor to access 1635 * 1636 * Grab a reference to the VFIO container used by the VFIO group pointed to by 1637 * @fd. 1638 * 1639 * Returns the VFIO group on success or an error pointer. 1640 */ 1641 struct vfio_group *vfio_group_container_acquire_fd(int fd) 1642 { 1643 struct vfio_group *group; 1644 struct fd f; 1645 int ret = -EINVAL; 1646 1647 f = fdget(fd); 1648 if (!f.file) > 1649 return -EBADF; 1650 if (f.file->f_op != &vfio_group_fops) 1651 goto out_fdput; 1652 1653 group = f.file->private_data; 1654 ret = vfio_group_container_acquire(group); 1655 if (ret) 1656 goto out_fdput; 1657 return group; 1658 1659 out_fdput: 1660 fdput(f); 1661 return ERR_PTR(ret); 1662 } 1663 EXPORT_SYMBOL_GPL(vfio_group_container_acquire_fd); 1664
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