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Message-ID: <202411081748.0PPL9MIj-lkp@intel.com>
Date: Fri, 8 Nov 2024 18:12:26 +0800
From: kernel test robot <lkp@...el.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Rob Clark <robdclark@...il.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Paloma Arellano <quic_parellan@...cinc.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Douglas Anderson <dianders@...omium.org>,
Stephen Boyd <swboyd@...omium.org>, linux-arm-msm@...r.kernel.org,
dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
linux-kernel@...r.kernel.org,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Subject: Re: [PATCH 11/14] drm/msm/dp: move/inline audio related functions
Hi Dmitry,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 74741a050b79d31d8d2eeee12c77736596d0a6b2]
url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Baryshkov/drm-msm-dp-fix-msm_dp_utils_pack_sdp_header-interface/20241108-082302
base: 74741a050b79d31d8d2eeee12c77736596d0a6b2
patch link: https://lore.kernel.org/r/20241108-fd-dp-audio-fixup-v1-11-40c8eeb60cf5%40linaro.org
patch subject: [PATCH 11/14] drm/msm/dp: move/inline audio related functions
config: x86_64-buildonly-randconfig-002-20241108 (https://download.01.org/0day-ci/archive/20241108/202411081748.0PPL9MIj-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241108/202411081748.0PPL9MIj-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411081748.0PPL9MIj-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/msm/dp/dp_audio.c:11:
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:21:
In file included from include/linux/mm.h:2223:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> drivers/gpu/drm/msm/dp/dp_audio.c:213:5: warning: variable 'safe_to_exit_level' is uninitialized when used here [-Wuninitialized]
213 | safe_to_exit_level);
| ^~~~~~~~~~~~~~~~~~
include/drm/drm_print.h:636:59: note: expanded from macro 'drm_dbg_dp'
636 | drm_dev_dbg((drm) ? (drm)->dev : NULL, DRM_UT_DP, fmt, ##__VA_ARGS__)
| ^~~~~~~~~~~
include/drm/drm_print.h:540:39: note: expanded from macro 'drm_dev_dbg'
540 | __drm_dev_dbg(NULL, dev, cat, fmt, ##__VA_ARGS__)
| ^~~~~~~~~~~
drivers/gpu/drm/msm/dp/dp_audio.c:198:24: note: initialize the variable 'safe_to_exit_level' to silence this warning
198 | u32 safe_to_exit_level, mainlink_levels;
| ^
| = 0
2 warnings generated.
vim +/safe_to_exit_level +213 drivers/gpu/drm/msm/dp/dp_audio.c
d13e36d7d2227e Abhinav Kumar 2020-09-12 195
fb7d509b1710d1 Dmitry Baryshkov 2024-10-29 196 static void msm_dp_audio_safe_to_exit_level(struct msm_dp_audio_private *audio)
d13e36d7d2227e Abhinav Kumar 2020-09-12 197 {
568837beeb38ef Dmitry Baryshkov 2024-11-08 198 u32 safe_to_exit_level, mainlink_levels;
d13e36d7d2227e Abhinav Kumar 2020-09-12 199
fb7d509b1710d1 Dmitry Baryshkov 2024-10-29 200 switch (audio->msm_dp_audio.lane_count) {
d13e36d7d2227e Abhinav Kumar 2020-09-12 201 case 1:
d13e36d7d2227e Abhinav Kumar 2020-09-12 202 safe_to_exit_level = 14;
d13e36d7d2227e Abhinav Kumar 2020-09-12 203 break;
d13e36d7d2227e Abhinav Kumar 2020-09-12 204 case 2:
d13e36d7d2227e Abhinav Kumar 2020-09-12 205 safe_to_exit_level = 8;
d13e36d7d2227e Abhinav Kumar 2020-09-12 206 break;
d13e36d7d2227e Abhinav Kumar 2020-09-12 207 case 4:
d13e36d7d2227e Abhinav Kumar 2020-09-12 208 safe_to_exit_level = 5;
d13e36d7d2227e Abhinav Kumar 2020-09-12 209 break;
d13e36d7d2227e Abhinav Kumar 2020-09-12 210 default:
202aceac8bb3ae Kuogee Hsieh 2022-02-17 211 drm_dbg_dp(audio->drm_dev,
202aceac8bb3ae Kuogee Hsieh 2022-02-17 212 "setting the default safe_to_exit_level = %u\n",
d13e36d7d2227e Abhinav Kumar 2020-09-12 @213 safe_to_exit_level);
d13e36d7d2227e Abhinav Kumar 2020-09-12 214 safe_to_exit_level = 14;
d13e36d7d2227e Abhinav Kumar 2020-09-12 215 break;
d13e36d7d2227e Abhinav Kumar 2020-09-12 216 }
d13e36d7d2227e Abhinav Kumar 2020-09-12 217
568837beeb38ef Dmitry Baryshkov 2024-11-08 218 mainlink_levels = msm_dp_read_link(audio->catalog, REG_DP_MAINLINK_LEVELS);
568837beeb38ef Dmitry Baryshkov 2024-11-08 219 mainlink_levels &= 0xFE0;
568837beeb38ef Dmitry Baryshkov 2024-11-08 220 mainlink_levels |= safe_to_exit_level;
568837beeb38ef Dmitry Baryshkov 2024-11-08 221
568837beeb38ef Dmitry Baryshkov 2024-11-08 222 drm_dbg_dp(audio->drm_dev,
568837beeb38ef Dmitry Baryshkov 2024-11-08 223 "mainlink_level = 0x%x, safe_to_exit_level = 0x%x\n",
568837beeb38ef Dmitry Baryshkov 2024-11-08 224 mainlink_levels, safe_to_exit_level);
568837beeb38ef Dmitry Baryshkov 2024-11-08 225
568837beeb38ef Dmitry Baryshkov 2024-11-08 226 msm_dp_write_link(audio->catalog, REG_DP_MAINLINK_LEVELS, mainlink_levels);
d13e36d7d2227e Abhinav Kumar 2020-09-12 227 }
d13e36d7d2227e Abhinav Kumar 2020-09-12 228
--
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