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From: kbuild test robot <lkp@intel.com>
To: mikita.lipski@amd.com
Cc: David Francis <David.Francis@amd.com>,
	Mikita Lipski <mikita.lipski@amd.com>,
	kbuild-all@lists.01.org, dri-devel@lists.freedesktop.org,
	amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes
Date: Fri, 6 Dec 2019 08:22:04 +0800	[thread overview]
Message-ID: <201912060739.ESIJ27eX%lkp@intel.com> (raw)
In-Reply-To: <20191203143530.27262-2-mikita.lipski@amd.com>

Hi,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20191203]
[cannot apply to drm-intel/for-linux-next linus/master v5.4-rc8 drm-exynos/exynos-drm-next v5.4]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/mikita-lipski-amd-com/DSC-MST-support-for-DRM-and-AMDGPU/20191204-020604
base:    1ab75b2e415a29dba9aec94f203c6f88dbfc0ba0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-91-g817270f-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c:28:43: sparse: sparse: not enough arguments for function drm_dp_calc_pbn_mode

vim +28 drivers/gpu/drm/selftests/test-drm_dp_mst_helper.c

7cbce45d624322 Lyude Paul 2019-09-03  13  
7cbce45d624322 Lyude Paul 2019-09-03  14  int igt_dp_mst_calc_pbn_mode(void *ignored)
7cbce45d624322 Lyude Paul 2019-09-03  15  {
7cbce45d624322 Lyude Paul 2019-09-03  16  	int pbn, i;
7cbce45d624322 Lyude Paul 2019-09-03  17  	const struct {
7cbce45d624322 Lyude Paul 2019-09-03  18  		int rate;
7cbce45d624322 Lyude Paul 2019-09-03  19  		int bpp;
7cbce45d624322 Lyude Paul 2019-09-03  20  		int expected;
7cbce45d624322 Lyude Paul 2019-09-03  21  	} test_params[] = {
7cbce45d624322 Lyude Paul 2019-09-03  22  		{ 154000, 30, 689 },
7cbce45d624322 Lyude Paul 2019-09-03  23  		{ 234000, 30, 1047 },
7cbce45d624322 Lyude Paul 2019-09-03  24  		{ 297000, 24, 1063 },
7cbce45d624322 Lyude Paul 2019-09-03  25  	};
7cbce45d624322 Lyude Paul 2019-09-03  26  
7cbce45d624322 Lyude Paul 2019-09-03  27  	for (i = 0; i < ARRAY_SIZE(test_params); i++) {
7cbce45d624322 Lyude Paul 2019-09-03 @28  		pbn = drm_dp_calc_pbn_mode(test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03  29  					   test_params[i].bpp);
7cbce45d624322 Lyude Paul 2019-09-03  30  		FAIL(pbn != test_params[i].expected,
7cbce45d624322 Lyude Paul 2019-09-03  31  		     "Expected PBN %d for clock %d bpp %d, got %d\n",
7cbce45d624322 Lyude Paul 2019-09-03  32  		     test_params[i].expected, test_params[i].rate,
7cbce45d624322 Lyude Paul 2019-09-03  33  		     test_params[i].bpp, pbn);
7cbce45d624322 Lyude Paul 2019-09-03  34  	}
7cbce45d624322 Lyude Paul 2019-09-03  35  
7cbce45d624322 Lyude Paul 2019-09-03  36  	return 0;
7cbce45d624322 Lyude Paul 2019-09-03  37  }
2f015ec6eab693 Lyude Paul 2019-09-03  38  

:::::: The code at line 28 was first introduced by commit
:::::: 7cbce45d6243225914b5c967b4ee927a2327842a drm/dp_mst: Move test_calc_pbn_mode() into an actual selftest

:::::: TO: Lyude Paul <lyude@redhat.com>
:::::: CC: Lyude Paul <lyude@redhat.com>

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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  reply	other threads:[~2019-12-06  0:23 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-03 14:35 [PATCH v8 00/17] DSC MST support for DRM and AMDGPU mikita.lipski
2019-12-03 14:35 ` [PATCH v8 01/17] drm/dp_mst: Add PBN calculation for DSC modes mikita.lipski
2019-12-06  0:22   ` kbuild test robot [this message]
2019-12-07  0:17   ` Lyude Paul
2019-12-07 22:13     ` Lipski, Mikita
2019-12-03 14:35 ` [PATCH v8 02/17] drm/dp_mst: Parse FEC capability on MST ports mikita.lipski
2019-12-03 21:09   ` kbuild test robot
2019-12-03 14:35 ` [PATCH v8 03/17] drm/dp_mst: Add MST support to DP DPCD R/W functions mikita.lipski
2019-12-03 14:35 ` [PATCH v8 04/17] drm/dp_mst: Fill branch->num_ports mikita.lipski
2019-12-06  4:30   ` Harry Wentland
2019-12-03 14:35 ` [PATCH v8 05/17] drm/dp_mst: Add helpers for MST DSC and virtual DPCD aux mikita.lipski
2019-12-03 14:35 ` [PATCH v8 06/17] drm/dp_mst: Add new quirk for Synaptics MST hubs mikita.lipski
2019-12-03 14:35 ` [PATCH v8 07/17] drm/amd/display: Initialize DSC PPS variables to 0 mikita.lipski
2019-12-03 14:35 ` [PATCH v8 08/17] drm/amd/display: Validate DSC caps on MST endpoints mikita.lipski
2019-12-03 14:35 ` [PATCH v8 09/17] drm/amd/display: Write DSC enable to MST DPCD mikita.lipski
2019-12-03 14:35 ` [PATCH v8 10/17] drm/dp_mst: Manually overwrite PBN divider for calculating timeslots mikita.lipski
2019-12-03 14:35 ` [PATCH v8 11/17] drm/dp_mst: Add DSC enablement helpers to DRM mikita.lipski
2019-12-03 21:52   ` kbuild test robot
2019-12-07  0:24   ` Lyude Paul
2019-12-09 14:07     ` Mikita Lipski
2019-12-03 14:35 ` [PATCH v8 12/17] drm/dp_mst: Add branch bandwidth validation to MST atomic check mikita.lipski
2019-12-05 19:28   ` Harry Wentland
2019-12-07  0:30   ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 13/17] drm/amd/display: Add PBN per slot calculation for DSC mikita.lipski
2019-12-03 14:35 ` [PATCH v8 14/17] drm/amd/display: MST DSC compute fair share mikita.lipski
2019-12-07  0:53   ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 15/17] drm/amd/display: Recalculate VCPI slots for new DSC connectors mikita.lipski
2019-12-07  0:52   ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 16/17] drm/dp_mst: Add helper to trigger modeset on affected DSC MST CRTCs mikita.lipski
2019-12-03 22:40   ` kbuild test robot
2019-12-07  0:51   ` Lyude Paul
2019-12-03 14:35 ` [PATCH v8 17/17] drm/amd/display: Trigger modesets on MST DSC connectors mikita.lipski
2019-12-07  0:53   ` Lyude Paul

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