* [chrome-os:chromeos-6.6 37/37] drivers/gpu/drm/mediatek/mtk_dp_v2.c:4373:6: warning: no previous prototype for function 'mtk_dp_hdcp_atomic_check'
@ 2025-04-28 22:44 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-04-28 22:44 UTC (permalink / raw)
To: cros-kernel-buildreports; +Cc: oe-kbuild-all
tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-6.6
head: f02706a87d01b3276dd25abaab122a7c8adbc6ac
commit: 0d43a2e82b935a7486ba1c21669596ff0a59ac27 [37/37] CHROMIUM: drm/mediatek: refine mst control flow
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20250429/202504290656.kQuDoFZM-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250429/202504290656.kQuDoFZM-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/202504290656.kQuDoFZM-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/mediatek/mtk_dp_v2.c:8:
In file included from include/drm/display/drm_dp_helper.h:27:
In file included from include/linux/i2c.h:19:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:20:
In file included from include/linux/mm.h:2194:
include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
509 | item];
| ~~~~
include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
516 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
528 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
537 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2565:6: warning: no previous prototype for function 'mtk_dp_dsc_support_v2' [-Wmissing-prototypes]
2565 | void mtk_dp_dsc_support_v2(struct mtk_dp *mtk_dp)
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2565:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2565 | void mtk_dp_dsc_support_v2(struct mtk_dp *mtk_dp)
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2573:6: warning: no previous prototype for function 'mtk_dp_dsc_enable_v2' [-Wmissing-prototypes]
2573 | void mtk_dp_dsc_enable_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id)
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2573:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2573 | void mtk_dp_dsc_enable_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id)
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2603:6: warning: no previous prototype for function 'mtk_dp_dsc_disable_v2' [-Wmissing-prototypes]
2603 | void mtk_dp_dsc_disable_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id)
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2603:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2603 | void mtk_dp_dsc_disable_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id)
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2633:6: warning: no previous prototype for function 'mtk_dp_set_chunk_size_v2' [-Wmissing-prototypes]
2633 | void mtk_dp_set_chunk_size_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id,
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2633:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2633 | void mtk_dp_set_chunk_size_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id,
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2652:6: warning: no previous prototype for function 'mtk_dp_dsc_set_param_v2' [-Wmissing-prototypes]
2652 | void mtk_dp_dsc_set_param_v2(struct mtk_dp *mtk_dp,
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2652:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2652 | void mtk_dp_dsc_set_param_v2(struct mtk_dp *mtk_dp,
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2678:6: warning: no previous prototype for function 'mtk_dp_dsc_set_pps_v2' [-Wmissing-prototypes]
2678 | void mtk_dp_dsc_set_pps_v2(struct mtk_dp *mtk_dp,
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2678:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2678 | void mtk_dp_dsc_set_pps_v2(struct mtk_dp *mtk_dp,
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2698:6: warning: no previous prototype for function 'mtk_dp_dsc_pps_send_v2' [-Wmissing-prototypes]
2698 | void mtk_dp_dsc_pps_send_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id)
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2698:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2698 | void mtk_dp_dsc_pps_send_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id)
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2704:6: warning: no previous prototype for function 'mtk_dp_dsc_parse_pps_param_v2' [-Wmissing-prototypes]
2704 | void mtk_dp_dsc_parse_pps_param_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id, u8 *pps)
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:2704:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
2704 | void mtk_dp_dsc_parse_pps_param_v2(struct mtk_dp *mtk_dp, const enum dp_encoder_id encoder_id, u8 *pps)
| ^
| static
drivers/gpu/drm/mediatek/mtk_dp_v2.c:3694:5: warning: variable 'data' set but not used [-Wunused-but-set-variable]
3694 | u8 data;
| ^
>> drivers/gpu/drm/mediatek/mtk_dp_v2.c:4373:6: warning: no previous prototype for function 'mtk_dp_hdcp_atomic_check' [-Wmissing-prototypes]
4373 | void mtk_dp_hdcp_atomic_check(struct mtk_dp *mtk_dp, enum dp_encoder_id id,
| ^
drivers/gpu/drm/mediatek/mtk_dp_v2.c:4373:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
4373 | void mtk_dp_hdcp_atomic_check(struct mtk_dp *mtk_dp, enum dp_encoder_id id,
| ^
| static
14 warnings generated.
vim +/mtk_dp_hdcp_atomic_check +4373 drivers/gpu/drm/mediatek/mtk_dp_v2.c
218314d73d3257 mac.shen 2025-01-27 4372
56c7482df8dc4a Mac Shen 2025-02-02 @4373 void mtk_dp_hdcp_atomic_check(struct mtk_dp *mtk_dp, enum dp_encoder_id id,
56c7482df8dc4a Mac Shen 2025-02-02 4374 struct drm_connector_state *state)
218314d73d3257 mac.shen 2025-01-27 4375 {
56c7482df8dc4a Mac Shen 2025-02-02 4376 bool need_hdcp;
218314d73d3257 mac.shen 2025-01-27 4377
56c7482df8dc4a Mac Shen 2025-02-02 4378 mutex_lock(&mtk_dp->hdcp_mutex);
56c7482df8dc4a Mac Shen 2025-02-02 4379
56c7482df8dc4a Mac Shen 2025-02-02 4380 need_hdcp = mtk_dp_hdcp_need_hdcp(mtk_dp);
218314d73d3257 mac.shen 2025-01-27 4381
0d43a2e82b935a Mac Shen 2025-03-04 4382 if (!need_hdcp)
218314d73d3257 mac.shen 2025-01-27 4383 mtk_dp_hdcp_disable(mtk_dp);
218314d73d3257 mac.shen 2025-01-27 4384
56c7482df8dc4a Mac Shen 2025-02-02 4385 if (need_hdcp)
218314d73d3257 mac.shen 2025-01-27 4386 mtk_dp_hdcp_enable(mtk_dp);
56c7482df8dc4a Mac Shen 2025-02-02 4387
56c7482df8dc4a Mac Shen 2025-02-02 4388 mutex_unlock(&mtk_dp->hdcp_mutex);
218314d73d3257 mac.shen 2025-01-27 4389 }
218314d73d3257 mac.shen 2025-01-27 4390
:::::: The code at line 4373 was first introduced by commit
:::::: 56c7482df8dc4a22d074197a9e4313cc79b734a3 CHROMIUM: drm/mediatek: Add support for MST HDCP
:::::: TO: Mac Shen <mac.shen@mediatek.corp-partner.google.com>
:::::: CC: Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2025-04-28 22:44 [chrome-os:chromeos-6.6 37/37] drivers/gpu/drm/mediatek/mtk_dp_v2.c:4373:6: warning: no previous prototype for function 'mtk_dp_hdcp_atomic_check' kernel test robot
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