Re: [PATCH drm-next v5 03/14] drm: manager to keep track of GPUs VA mappings

kernel test robot
2023-06-20T03:33:09Z

Hi Danilo,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 2222dcb0775d36de28992f56455ab3967b30d380]

url: https://github.com/intel-lab-lkp/linux/commits/Danilo-Krummrich/drm-execution-context-for-GEM-buffers-v4/20230620-084448
base: 2222dcb0775d36de28992f56455ab3967b30d380
patch link: https://lore.kernel.org/r/20230620004217.4700-4-dakr%40redhat.com
patch subject: [PATCH drm-next v5 03/14] drm: manager to keep track of GPUs VA mappings
config: hexagon-randconfig-r041-20230620 (https://download.01.org/0day-ci/archive/20230620/202306201123.4nvLB3cQ-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230620/202306201123.4nvLB3cQ-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306201123.4nvLB3cQ-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/drm_gpuva_mgr.c:676:7: warning: format specifies type 'unsigned long' but the argument has type 'unsigned int' [-Wformat]
676 | return WARN(check_add_overflow(addr, range, &end),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
677 | "GPUVA address limited to %lu bytes, see Documentation.\n",
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| %u
678 | MTREE_INDEX_SIZE);
| ^~~~~~~~~~~~~~~~~
drivers/gpu/drm/drm_gpuva_mgr.c:663:26: note: expanded from macro 'MTREE_INDEX_SIZE'
663 | #define MTREE_INDEX_SIZE sizeof(MTREE_INDEX_TYPE)
| ^
include/asm-generic/bug.h:133:29: note: expanded from macro 'WARN'
133 | __WARN_printf(TAINT_WARN, format); \
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
include/asm-generic/bug.h:97:48: note: expanded from macro '__WARN_printf'
97 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \
| ^~~
drivers/gpu/drm/drm_gpuva_mgr.c:1314:25: warning: variable 'prev' set but not used [-Wunused-but-set-variable]
1314 | struct drm_gpuva *va, *prev = NULL;
| ^
2 warnings generated.

vim +676 drivers/gpu/drm/drm_gpuva_mgr.c

668
669 static inline bool
670 drm_gpuva_check_overflow(u64 addr, u64 range)
671 {
672 MTREE_INDEX_TYPE end;
673
674 return WARN(check_add_overflow(addr, range, &end),
675 "GPUVA address limited to %lu bytes, see Documentation.\n",
> 676 MTREE_INDEX_SIZE);
677 }
678

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