CC: [email protected]
BCC: [email protected]
CC: [email protected]
TO: Arunpravin <[email protected]>
CC: "Christian König" <[email protected]>
CC: Matthew Auld <[email protected]>

tree:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
head:   f915686bd97a9c234602426e6d132b74a112a8d6
commit: 92937f170d3f49f41d7acb86243ee691a98eb2be [7/11] drm/selftests: add drm 
buddy alloc range testcase
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: i386-randconfig-c001 
(https://download.01.org/0day-ci/archive/20220226/[email protected]/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>
Reported-by: Julia Lawall <[email protected]>


cocci warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/selftests/test-drm_buddy.c:184:20-25: ERROR: invalid 
>> reference to the index variable of the iterator on line 139

vim +184 drivers/gpu/drm/selftests/test-drm_buddy.c

92937f170d3f49 Arunpravin 2022-02-22  124  
92937f170d3f49 Arunpravin 2022-02-22  125  static int igt_check_blocks(struct 
drm_buddy *mm,
92937f170d3f49 Arunpravin 2022-02-22  126                           struct 
list_head *blocks,
92937f170d3f49 Arunpravin 2022-02-22  127                           u64 
expected_size,
92937f170d3f49 Arunpravin 2022-02-22  128                           bool 
is_contiguous)
92937f170d3f49 Arunpravin 2022-02-22  129  {
92937f170d3f49 Arunpravin 2022-02-22  130       struct drm_buddy_block *block;
92937f170d3f49 Arunpravin 2022-02-22  131       struct drm_buddy_block *prev;
92937f170d3f49 Arunpravin 2022-02-22  132       u64 total;
92937f170d3f49 Arunpravin 2022-02-22  133       int err = 0;
92937f170d3f49 Arunpravin 2022-02-22  134  
92937f170d3f49 Arunpravin 2022-02-22  135       block = NULL;
92937f170d3f49 Arunpravin 2022-02-22  136       prev = NULL;
92937f170d3f49 Arunpravin 2022-02-22  137       total = 0;
92937f170d3f49 Arunpravin 2022-02-22  138  
92937f170d3f49 Arunpravin 2022-02-22 @139       list_for_each_entry(block, 
blocks, link) {
92937f170d3f49 Arunpravin 2022-02-22  140               err = 
igt_check_block(mm, block);
92937f170d3f49 Arunpravin 2022-02-22  141  
92937f170d3f49 Arunpravin 2022-02-22  142               if 
(!drm_buddy_block_is_allocated(block)) {
92937f170d3f49 Arunpravin 2022-02-22  143                       pr_err("block 
not allocated\n"),
92937f170d3f49 Arunpravin 2022-02-22  144                              err = 
-EINVAL;
92937f170d3f49 Arunpravin 2022-02-22  145               }
92937f170d3f49 Arunpravin 2022-02-22  146  
92937f170d3f49 Arunpravin 2022-02-22  147               if (is_contiguous && 
prev) {
92937f170d3f49 Arunpravin 2022-02-22  148                       u64 
prev_block_size;
92937f170d3f49 Arunpravin 2022-02-22  149                       u64 prev_offset;
92937f170d3f49 Arunpravin 2022-02-22  150                       u64 offset;
92937f170d3f49 Arunpravin 2022-02-22  151  
92937f170d3f49 Arunpravin 2022-02-22  152                       prev_offset = 
drm_buddy_block_offset(prev);
92937f170d3f49 Arunpravin 2022-02-22  153                       prev_block_size 
= drm_buddy_block_size(mm, prev);
92937f170d3f49 Arunpravin 2022-02-22  154                       offset = 
drm_buddy_block_offset(block);
92937f170d3f49 Arunpravin 2022-02-22  155  
92937f170d3f49 Arunpravin 2022-02-22  156                       if (offset != 
(prev_offset + prev_block_size)) {
92937f170d3f49 Arunpravin 2022-02-22  157                               
pr_err("block offset mismatch\n");
92937f170d3f49 Arunpravin 2022-02-22  158                               err = 
-EINVAL;
92937f170d3f49 Arunpravin 2022-02-22  159                       }
92937f170d3f49 Arunpravin 2022-02-22  160               }
92937f170d3f49 Arunpravin 2022-02-22  161  
92937f170d3f49 Arunpravin 2022-02-22  162               if (err)
92937f170d3f49 Arunpravin 2022-02-22  163                       break;
92937f170d3f49 Arunpravin 2022-02-22  164  
92937f170d3f49 Arunpravin 2022-02-22  165               total += 
drm_buddy_block_size(mm, block);
92937f170d3f49 Arunpravin 2022-02-22  166               prev = block;
92937f170d3f49 Arunpravin 2022-02-22  167       }
92937f170d3f49 Arunpravin 2022-02-22  168  
92937f170d3f49 Arunpravin 2022-02-22  169       if (!err) {
92937f170d3f49 Arunpravin 2022-02-22  170               if (total != 
expected_size) {
92937f170d3f49 Arunpravin 2022-02-22  171                       pr_err("size 
mismatch, expected=%llx, found=%llx\n",
92937f170d3f49 Arunpravin 2022-02-22  172                              
expected_size, total);
92937f170d3f49 Arunpravin 2022-02-22  173                       err = -EINVAL;
92937f170d3f49 Arunpravin 2022-02-22  174               }
92937f170d3f49 Arunpravin 2022-02-22  175               return err;
92937f170d3f49 Arunpravin 2022-02-22  176       }
92937f170d3f49 Arunpravin 2022-02-22  177  
92937f170d3f49 Arunpravin 2022-02-22  178       if (prev) {
92937f170d3f49 Arunpravin 2022-02-22  179               pr_err("prev block, 
dump:\n");
92937f170d3f49 Arunpravin 2022-02-22  180               igt_dump_block(mm, 
prev);
92937f170d3f49 Arunpravin 2022-02-22  181       }
92937f170d3f49 Arunpravin 2022-02-22  182  
92937f170d3f49 Arunpravin 2022-02-22  183       pr_err("bad block, dump:\n");
92937f170d3f49 Arunpravin 2022-02-22 @184       igt_dump_block(mm, block);
92937f170d3f49 Arunpravin 2022-02-22  185  
92937f170d3f49 Arunpravin 2022-02-22  186       return err;
92937f170d3f49 Arunpravin 2022-02-22  187  }
92937f170d3f49 Arunpravin 2022-02-22  188  

---
0-DAY CI Kernel Test Service, Intel Corporation
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