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Message-ID: <202504050919.KlKBUNDh-lkp@intel.com>
Date: Sat, 5 Apr 2025 10:01:40 +0800
From: kernel test robot <lkp@...el.com>
To: Anusha Srivatsa <asrivats@...hat.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Jessica Zhang <quic_jesszhan@...cinc.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Robert Chiras <robert.chiras@....com>,
Linus Walleij <linus.walleij@...aro.org>,
Markuss Broks <markuss.broks@...il.com>,
Artur Weber <aweber.kernel@...il.com>,
Dzmitry Sankouski <dsankouski@...il.com>,
Jagan Teki <jagan@...rulasolutions.com>,
Guido Günther <agx@...xcpu.org>,
Purism Kernel Team <kernel@...i.sm>, Ondrej Jirman <megi@....cz>,
Sasha Finkelstein <fnkl.kernel@...il.com>,
Janne Grunau <j@...nau.net>,
Michael Trimarchi <michael@...rulasolutions.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>
Cc: oe-kbuild-all@...ts.linux.dev, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, asahi@...ts.linux.dev,
Anusha Srivatsa <asrivats@...hat.com>
Subject: Re: [PATCH 41/46] panel/widechips-ws2401: Use refcounted allocation
in place of devm_kzalloc()
Hi Anusha,
kernel test robot noticed the following build errors:
[auto build test ERROR on de04bb0089a96cc00d13b12cbf66a088befe3057]
url: https://github.com/intel-lab-lkp/linux/commits/Anusha-Srivatsa/panel-orisetech-otm8009a-Use-refcounted-allocation-in-place-of-devm_kzalloc/20250404-052751
base: de04bb0089a96cc00d13b12cbf66a088befe3057
patch link: https://lore.kernel.org/r/20250403-b4-drm_panel_mass_driver_convert_part3-v1-41-965b15ad5b8e%40redhat.com
patch subject: [PATCH 41/46] panel/widechips-ws2401: Use refcounted allocation in place of devm_kzalloc()
config: x86_64-buildonly-randconfig-001-20250405 (https://download.01.org/0day-ci/archive/20250405/202504050919.KlKBUNDh-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250405/202504050919.KlKBUNDh-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/202504050919.KlKBUNDh-lkp@intel.com/
All errors (new ones prefixed by >>):
ld: drivers/gpu/drm/panel/panel-widechips-ws2401.o: in function `ws2401_probe':
>> drivers/gpu/drm/panel/panel-widechips-ws2401.c:350: undefined reference to `__devm_drm_panel_alloc'
vim +350 drivers/gpu/drm/panel/panel-widechips-ws2401.c
343
344 static int ws2401_probe(struct spi_device *spi)
345 {
346 struct device *dev = &spi->dev;
347 struct ws2401 *ws;
348 int ret;
349
> 350 ws = devm_drm_panel_alloc(dev, struct ws2401, panel, &ws2401_drm_funcs,
351 DRM_MODE_CONNECTOR_DPI);
352 if (IS_ERR(ws))
353 return PTR_ERR(ws);
354
355 ws->dev = dev;
356
357 /*
358 * VCI is the analog voltage supply
359 * VCCIO is the digital I/O voltage supply
360 */
361 ws->regulators[0].supply = "vci";
362 ws->regulators[1].supply = "vccio";
363 ret = devm_regulator_bulk_get(dev,
364 ARRAY_SIZE(ws->regulators),
365 ws->regulators);
366 if (ret)
367 return dev_err_probe(dev, ret, "failed to get regulators\n");
368
369 ws->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
370 if (IS_ERR(ws->reset)) {
371 ret = PTR_ERR(ws->reset);
372 return dev_err_probe(dev, ret, "no RESET GPIO\n");
373 }
374
375 ret = mipi_dbi_spi_init(spi, &ws->dbi, NULL);
376 if (ret)
377 return dev_err_probe(dev, ret, "MIPI DBI init failed\n");
378 ws->dbi.read_commands = ws2401_dbi_read_commands;
379
380 ws2401_power_on(ws);
381 ws2401_read_mtp_id(ws);
382 ws2401_power_off(ws);
383
384 ret = drm_panel_of_backlight(&ws->panel);
385 if (ret)
386 return dev_err_probe(dev, ret,
387 "failed to get external backlight device\n");
388
389 if (!ws->panel.backlight) {
390 dev_dbg(dev, "no external backlight, using internal backlight\n");
391 ws->panel.backlight =
392 devm_backlight_device_register(dev, "ws2401", dev, ws,
393 &ws2401_bl_ops, &ws2401_bl_props);
394 if (IS_ERR(ws->panel.backlight))
395 return dev_err_probe(dev, PTR_ERR(ws->panel.backlight),
396 "failed to register backlight device\n");
397 } else {
398 dev_dbg(dev, "using external backlight\n");
399 }
400
401 spi_set_drvdata(spi, ws);
402
403 drm_panel_add(&ws->panel);
404 dev_dbg(dev, "added panel\n");
405
406 return 0;
407 }
408
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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