7 a.m.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4c388a8e740d3235a194f330c8ef327deef710f6
commit: 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 drm: Add GUD USB Display driver
date: 8 months ago
config: mips-randconfig-s032-20211116 (attached as .config)
compiler: mipsel-linux-gcc (GCC) 11.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
#
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit...
git remote add linus
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 40e1a70b4aedf2859a1829991b48ef0ebe650bf2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1
CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips SHELL=/bin/bash
arch/mips/ block// drivers/ kernel// net/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
sparse warnings: (new ones prefixed by >>)
command-line: note: in included file:
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
builtin:0:0: sparse: this was the original definition
> drivers/gpu/drm/gud/gud_drv.c:95:28: sparse: sparse: cast to
restricted __le32
> drivers/gpu/drm/gud/gud_drv.c:95:17: sparse: sparse: restricted __le32 degrades to
integer
vim +95 drivers/gpu/drm/gud/gud_drv.c
76
77 static int gud_get_display_descriptor(struct usb_interface *intf,
78 struct gud_display_descriptor_req *desc)
79 {
80 void *buf;
81 int ret;
82
83 buf = kmalloc(sizeof(*desc), GFP_KERNEL);
84 if (!buf)
85 return -ENOMEM;
86
87 ret = gud_usb_control_msg(intf, true, GUD_REQ_GET_DESCRIPTOR, 0, buf,
sizeof(*desc));
88 memcpy(desc, buf, sizeof(*desc));
89 kfree(buf);
90 if (ret < 0)
91 return ret;
92 if (ret != sizeof(*desc))
93 return -EIO;
94
95 if (desc->magic != le32_to_cpu(GUD_DISPLAY_MAGIC))
96 return -ENODATA;
97
98 DRM_DEV_DEBUG_DRIVER(&intf->dev,
99 "version=%u flags=0x%x compression=0x%x max_buffer_size=%u\n",
100 desc->version, le32_to_cpu(desc->flags), desc->compression,
101 le32_to_cpu(desc->max_buffer_size));
102
103 if (!desc->version || !desc->max_width || !desc->max_height ||
104 le32_to_cpu(desc->min_width) > le32_to_cpu(desc->max_width) ||
105 le32_to_cpu(desc->min_height) > le32_to_cpu(desc->max_height))
106 return -EINVAL;
107
108 return 0;
109 }
110
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org