From: kernel test robot <lkp@intel.com>
To: Peichen Huang <peichen.huang@amd.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
Linux Memory Management List <linux-mm@kvack.org>,
Alex Deucher <alexander.deucher@amd.com>,
Cruise Hung <cruise.hung@amd.com>
Subject: [linux-next:master 12891/13109] drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_dpia_bw.c:548:24: warning: arithmetic between different enumeration types ('const enum dc_link_rate' and 'const enum dc_lane_count')
Date: Thu, 11 Jan 2024 04:59:27 +0800 [thread overview]
Message-ID: <202401110427.FNT67xeQ-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 8cb47d7cd090a690c1785385b2f3d407d4a53ad0
commit: 5f3bce13266e6fe2f7a46f94d8bc94d5274e276b [12891/13109] drm/amd/display: Request usb4 bw for mst streams
config: x86_64-allmodconfig (https://download.01.org/0day-ci/archive/20240111/202401110427.FNT67xeQ-lkp@intel.com/config)
compiler: ClangBuiltLinux clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240111/202401110427.FNT67xeQ-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/202401110427.FNT67xeQ-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_dpia_bw.c:548:24: warning: arithmetic between different enumeration types ('const enum dc_link_rate' and 'const enum dc_lane_count') [-Wenum-enum-conversion]
548 | link_cap->link_rate * link_cap->lane_count * LINK_RATE_REF_FREQ_IN_KHZ * 8;
| ~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~
1 warning generated.
vim +548 drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_dp_dpia_bw.c
531
532 int link_dp_dpia_get_dp_overhead_in_dp_tunneling(struct dc_link *link)
533 {
534 int dp_overhead = 0, link_mst_overhead = 0;
535
536 if (!get_bw_alloc_proceed_flag((link)))
537 return dp_overhead;
538
539 /* if its mst link, add MTPH overhead */
540 if ((link->type == dc_connection_mst_branch) &&
541 !link->dpcd_caps.channel_coding_cap.bits.DP_128b_132b_SUPPORTED) {
542 /* For 8b/10b encoding: MTP is 64 time slots long, slot 0 is used for MTPH
543 * MST overhead is 1/64 of link bandwidth (excluding any overhead)
544 */
545 const struct dc_link_settings *link_cap =
546 dc_link_get_link_cap(link);
547 uint32_t link_bw_in_kbps =
> 548 link_cap->link_rate * link_cap->lane_count * LINK_RATE_REF_FREQ_IN_KHZ * 8;
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2024-01-10 21:00 UTC|newest]
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