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* drivers/gpu/drm/panel/panel-samsung-ld9040.c:239:12: warning: stack frame size of 8344 bytes in function 'ld9040_prepare'
@ 2021-06-15  2:42 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-06-15  2:42 UTC (permalink / raw)
  To: Walter Wu
  Cc: kbuild-all, clang-built-linux, linux-kernel, Nathan Chancellor,
	Andrey Konovalov, Andrew Morton, Linux Memory Management List

[-- Attachment #1: Type: text/plain, Size: 19351 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   009c9aa5be652675a06d5211e1640e02bbb1c33d
commit: 02c587733c8161355a43e6e110c2e29bd0acff72 kasan: remove redundant config option
date:   8 weeks ago
config: x86_64-randconfig-a016-20210615 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=02c587733c8161355a43e6e110c2e29bd0acff72
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 02c587733c8161355a43e6e110c2e29bd0acff72
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/panel/panel-samsung-ld9040.c:377:35: warning: unused variable 'ld9040_ids' [-Wunused-const-variable]
   static const struct spi_device_id ld9040_ids[] = {
                                     ^
>> drivers/gpu/drm/panel/panel-samsung-ld9040.c:239:12: warning: stack frame size of 8344 bytes in function 'ld9040_prepare' [-Wframe-larger-than=]
   static int ld9040_prepare(struct drm_panel *panel)
              ^
   2 warnings generated.
--
>> drivers/usb/gadget/udc/max3420_udc.c:843:12: warning: stack frame size of 13976 bytes in function 'max3420_thread' [-Wframe-larger-than=]
   static int max3420_thread(void *dev_id)
              ^
   1 warning generated.


vim +/ld9040_prepare +239 drivers/gpu/drm/panel/panel-samsung-ld9040.c

ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  238  
099b3e8699322e drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31 @239  static int ld9040_prepare(struct drm_panel *panel)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  240  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  241  	struct ld9040 *ctx = panel_to_ld9040(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  242  	int ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  243  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  244  	ret = ld9040_power_on(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  245  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  246  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  247  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  248  	ld9040_init(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  249  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  250  	ret = ld9040_clear_error(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  251  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  252  	if (ret < 0)
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  253  		ld9040_unprepare(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  254  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  255  	return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  256  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  257  
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  258  static int ld9040_enable(struct drm_panel *panel)
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  259  {
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  260  	return 0;
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  261  }
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  262  
0ce8ddd8e06dcb drivers/gpu/drm/panel/panel-samsung-ld9040.c Sam Ravnborg      2019-12-07  263  static int ld9040_get_modes(struct drm_panel *panel,
0ce8ddd8e06dcb drivers/gpu/drm/panel/panel-samsung-ld9040.c Sam Ravnborg      2019-12-07  264  			    struct drm_connector *connector)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  265  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  266  	struct ld9040 *ctx = panel_to_ld9040(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  267  	struct drm_display_mode *mode;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  268  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  269  	mode = drm_mode_create(connector->dev);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  270  	if (!mode) {
5936b3bdaa8889 drivers/gpu/drm/panel/panel-samsung-ld9040.c Sam Ravnborg      2020-08-15  271  		dev_err(panel->dev, "failed to create a new display mode\n");
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  272  		return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  273  	}
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  274  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  275  	drm_display_mode_from_videomode(&ctx->vm, mode);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  276  	mode->width_mm = ctx->width_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  277  	mode->height_mm = ctx->height_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  278  	connector->display_info.width_mm = mode->width_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  279  	connector->display_info.height_mm = mode->height_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  280  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  281  	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  282  	drm_mode_probed_add(connector, mode);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  283  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  284  	return 1;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  285  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  286  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  287  static const struct drm_panel_funcs ld9040_drm_funcs = {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  288  	.disable = ld9040_disable,
099b3e8699322e drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  289  	.unprepare = ld9040_unprepare,
099b3e8699322e drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  290  	.prepare = ld9040_prepare,
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  291  	.enable = ld9040_enable,
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  292  	.get_modes = ld9040_get_modes,
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  293  };
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  294  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  295  static int ld9040_parse_dt(struct ld9040 *ctx)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  296  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  297  	struct device *dev = ctx->dev;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  298  	struct device_node *np = dev->of_node;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  299  	int ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  300  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  301  	ret = of_get_videomode(np, &ctx->vm, 0);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  302  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  303  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  304  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  305  	of_property_read_u32(np, "power-on-delay", &ctx->power_on_delay);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  306  	of_property_read_u32(np, "reset-delay", &ctx->reset_delay);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  307  	of_property_read_u32(np, "panel-width-mm", &ctx->width_mm);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  308  	of_property_read_u32(np, "panel-height-mm", &ctx->height_mm);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  309  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  310  	return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  311  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  312  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  313  static int ld9040_probe(struct spi_device *spi)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  314  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  315  	struct device *dev = &spi->dev;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  316  	struct ld9040 *ctx;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  317  	int ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  318  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  319  	ctx = devm_kzalloc(dev, sizeof(struct ld9040), GFP_KERNEL);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  320  	if (!ctx)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  321  		return -ENOMEM;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  322  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  323  	spi_set_drvdata(spi, ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  324  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  325  	ctx->dev = dev;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  326  	ctx->brightness = ARRAY_SIZE(ld9040_gammas) - 1;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  327  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  328  	ret = ld9040_parse_dt(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  329  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  330  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  331  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  332  	ctx->supplies[0].supply = "vdd3";
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  333  	ctx->supplies[1].supply = "vci";
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  334  	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  335  				      ctx->supplies);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  336  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  337  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  338  
8a8cc83cbd081b drivers/gpu/drm/panel/panel-ld9040.c         Alexandre Courbot 2014-10-23  339  	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  340  	if (IS_ERR(ctx->reset_gpio)) {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  341  		dev_err(dev, "cannot get reset-gpios %ld\n",
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  342  			PTR_ERR(ctx->reset_gpio));
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  343  		return PTR_ERR(ctx->reset_gpio);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  344  	}
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  345  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  346  	spi->bits_per_word = 9;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  347  	ret = spi_setup(spi);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  348  	if (ret < 0) {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  349  		dev_err(dev, "spi setup failed.\n");
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  350  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  351  	}
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  352  
9a2654c0f62a17 drivers/gpu/drm/panel/panel-samsung-ld9040.c Laurent Pinchart  2019-09-04  353  	drm_panel_init(&ctx->panel, dev, &ld9040_drm_funcs,
9a2654c0f62a17 drivers/gpu/drm/panel/panel-samsung-ld9040.c Laurent Pinchart  2019-09-04  354  		       DRM_MODE_CONNECTOR_DPI);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  355  
c3ee8c65f63799 drivers/gpu/drm/panel/panel-samsung-ld9040.c Bernard Zhao      2020-08-01  356  	drm_panel_add(&ctx->panel);
c3ee8c65f63799 drivers/gpu/drm/panel/panel-samsung-ld9040.c Bernard Zhao      2020-08-01  357  
c3ee8c65f63799 drivers/gpu/drm/panel/panel-samsung-ld9040.c Bernard Zhao      2020-08-01  358  	return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  359  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  360  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  361  static int ld9040_remove(struct spi_device *spi)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  362  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  363  	struct ld9040 *ctx = spi_get_drvdata(spi);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  364  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  365  	ld9040_power_off(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  366  	drm_panel_remove(&ctx->panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  367  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  368  	return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  369  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  370  
1a8f9056f59e01 drivers/gpu/drm/panel/panel-ld9040.c         Thierry Reding    2015-04-14  371  static const struct of_device_id ld9040_of_match[] = {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  372  	{ .compatible = "samsung,ld9040" },
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  373  	{ }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  374  };
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  375  MODULE_DEVICE_TABLE(of, ld9040_of_match);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  376  
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20 @377  static const struct spi_device_id ld9040_ids[] = {
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  378  	{ "ld9040", },
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  379  	{ /* sentinel */ }
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  380  };
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  381  MODULE_DEVICE_TABLE(spi, ld9040_ids);
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  382  

:::::: The code at line 239 was first introduced by commit
:::::: 099b3e8699322efb7229913d2c1651588205f182 drm/panel: ld9040: Add dummy prepare and unprepare routines

:::::: TO: Ajay Kumar <ajaykumar.rs@samsung.com>
:::::: CC: Thierry Reding <treding@nvidia.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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* drivers/gpu/drm/panel/panel-samsung-ld9040.c:239:12: warning: stack frame size of 8344 bytes in function 'ld9040_prepare'
@ 2021-06-15  2:42 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-06-15  2:42 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 19547 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   009c9aa5be652675a06d5211e1640e02bbb1c33d
commit: 02c587733c8161355a43e6e110c2e29bd0acff72 kasan: remove redundant config option
date:   8 weeks ago
config: x86_64-randconfig-a016-20210615 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=02c587733c8161355a43e6e110c2e29bd0acff72
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 02c587733c8161355a43e6e110c2e29bd0acff72
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/panel/panel-samsung-ld9040.c:377:35: warning: unused variable 'ld9040_ids' [-Wunused-const-variable]
   static const struct spi_device_id ld9040_ids[] = {
                                     ^
>> drivers/gpu/drm/panel/panel-samsung-ld9040.c:239:12: warning: stack frame size of 8344 bytes in function 'ld9040_prepare' [-Wframe-larger-than=]
   static int ld9040_prepare(struct drm_panel *panel)
              ^
   2 warnings generated.
--
>> drivers/usb/gadget/udc/max3420_udc.c:843:12: warning: stack frame size of 13976 bytes in function 'max3420_thread' [-Wframe-larger-than=]
   static int max3420_thread(void *dev_id)
              ^
   1 warning generated.


vim +/ld9040_prepare +239 drivers/gpu/drm/panel/panel-samsung-ld9040.c

ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  238  
099b3e8699322e drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31 @239  static int ld9040_prepare(struct drm_panel *panel)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  240  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  241  	struct ld9040 *ctx = panel_to_ld9040(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  242  	int ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  243  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  244  	ret = ld9040_power_on(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  245  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  246  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  247  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  248  	ld9040_init(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  249  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  250  	ret = ld9040_clear_error(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  251  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  252  	if (ret < 0)
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  253  		ld9040_unprepare(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  254  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  255  	return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  256  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  257  
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  258  static int ld9040_enable(struct drm_panel *panel)
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  259  {
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  260  	return 0;
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  261  }
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  262  
0ce8ddd8e06dcb drivers/gpu/drm/panel/panel-samsung-ld9040.c Sam Ravnborg      2019-12-07  263  static int ld9040_get_modes(struct drm_panel *panel,
0ce8ddd8e06dcb drivers/gpu/drm/panel/panel-samsung-ld9040.c Sam Ravnborg      2019-12-07  264  			    struct drm_connector *connector)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  265  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  266  	struct ld9040 *ctx = panel_to_ld9040(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  267  	struct drm_display_mode *mode;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  268  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  269  	mode = drm_mode_create(connector->dev);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  270  	if (!mode) {
5936b3bdaa8889 drivers/gpu/drm/panel/panel-samsung-ld9040.c Sam Ravnborg      2020-08-15  271  		dev_err(panel->dev, "failed to create a new display mode\n");
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  272  		return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  273  	}
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  274  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  275  	drm_display_mode_from_videomode(&ctx->vm, mode);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  276  	mode->width_mm = ctx->width_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  277  	mode->height_mm = ctx->height_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  278  	connector->display_info.width_mm = mode->width_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  279  	connector->display_info.height_mm = mode->height_mm;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  280  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  281  	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  282  	drm_mode_probed_add(connector, mode);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  283  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  284  	return 1;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  285  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  286  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  287  static const struct drm_panel_funcs ld9040_drm_funcs = {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  288  	.disable = ld9040_disable,
099b3e8699322e drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  289  	.unprepare = ld9040_unprepare,
099b3e8699322e drivers/gpu/drm/panel/panel-ld9040.c         Ajay Kumar        2014-07-31  290  	.prepare = ld9040_prepare,
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  291  	.enable = ld9040_enable,
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  292  	.get_modes = ld9040_get_modes,
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  293  };
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  294  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  295  static int ld9040_parse_dt(struct ld9040 *ctx)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  296  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  297  	struct device *dev = ctx->dev;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  298  	struct device_node *np = dev->of_node;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  299  	int ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  300  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  301  	ret = of_get_videomode(np, &ctx->vm, 0);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  302  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  303  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  304  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  305  	of_property_read_u32(np, "power-on-delay", &ctx->power_on_delay);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  306  	of_property_read_u32(np, "reset-delay", &ctx->reset_delay);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  307  	of_property_read_u32(np, "panel-width-mm", &ctx->width_mm);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  308  	of_property_read_u32(np, "panel-height-mm", &ctx->height_mm);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  309  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  310  	return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  311  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  312  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  313  static int ld9040_probe(struct spi_device *spi)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  314  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  315  	struct device *dev = &spi->dev;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  316  	struct ld9040 *ctx;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  317  	int ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  318  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  319  	ctx = devm_kzalloc(dev, sizeof(struct ld9040), GFP_KERNEL);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  320  	if (!ctx)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  321  		return -ENOMEM;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  322  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  323  	spi_set_drvdata(spi, ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  324  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  325  	ctx->dev = dev;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  326  	ctx->brightness = ARRAY_SIZE(ld9040_gammas) - 1;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  327  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  328  	ret = ld9040_parse_dt(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  329  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  330  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  331  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  332  	ctx->supplies[0].supply = "vdd3";
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  333  	ctx->supplies[1].supply = "vci";
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  334  	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies),
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  335  				      ctx->supplies);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  336  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  337  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  338  
8a8cc83cbd081b drivers/gpu/drm/panel/panel-ld9040.c         Alexandre Courbot 2014-10-23  339  	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  340  	if (IS_ERR(ctx->reset_gpio)) {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  341  		dev_err(dev, "cannot get reset-gpios %ld\n",
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  342  			PTR_ERR(ctx->reset_gpio));
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  343  		return PTR_ERR(ctx->reset_gpio);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  344  	}
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  345  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  346  	spi->bits_per_word = 9;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  347  	ret = spi_setup(spi);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  348  	if (ret < 0) {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  349  		dev_err(dev, "spi setup failed.\n");
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  350  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  351  	}
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  352  
9a2654c0f62a17 drivers/gpu/drm/panel/panel-samsung-ld9040.c Laurent Pinchart  2019-09-04  353  	drm_panel_init(&ctx->panel, dev, &ld9040_drm_funcs,
9a2654c0f62a17 drivers/gpu/drm/panel/panel-samsung-ld9040.c Laurent Pinchart  2019-09-04  354  		       DRM_MODE_CONNECTOR_DPI);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  355  
c3ee8c65f63799 drivers/gpu/drm/panel/panel-samsung-ld9040.c Bernard Zhao      2020-08-01  356  	drm_panel_add(&ctx->panel);
c3ee8c65f63799 drivers/gpu/drm/panel/panel-samsung-ld9040.c Bernard Zhao      2020-08-01  357  
c3ee8c65f63799 drivers/gpu/drm/panel/panel-samsung-ld9040.c Bernard Zhao      2020-08-01  358  	return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  359  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  360  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  361  static int ld9040_remove(struct spi_device *spi)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  362  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  363  	struct ld9040 *ctx = spi_get_drvdata(spi);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  364  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  365  	ld9040_power_off(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  366  	drm_panel_remove(&ctx->panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  367  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  368  	return 0;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  369  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  370  
1a8f9056f59e01 drivers/gpu/drm/panel/panel-ld9040.c         Thierry Reding    2015-04-14  371  static const struct of_device_id ld9040_of_match[] = {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  372  	{ .compatible = "samsung,ld9040" },
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  373  	{ }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  374  };
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  375  MODULE_DEVICE_TABLE(of, ld9040_of_match);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c         Andrzej Hajda     2014-03-26  376  
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20 @377  static const struct spi_device_id ld9040_ids[] = {
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  378  	{ "ld9040", },
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  379  	{ /* sentinel */ }
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  380  };
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  381  MODULE_DEVICE_TABLE(spi, ld9040_ids);
6915db346039b3 drivers/gpu/drm/panel/panel-samsung-ld9040.c Marek Szyprowski  2020-02-20  382  

:::::: The code at line 239 was first introduced by commit
:::::: 099b3e8699322efb7229913d2c1651588205f182 drm/panel: ld9040: Add dummy prepare and unprepare routines

:::::: TO: Ajay Kumar <ajaykumar.rs@samsung.com>
:::::: CC: Thierry Reding <treding@nvidia.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

[-- Attachment #2: config.gz --]
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2021-06-15  2:42 drivers/gpu/drm/panel/panel-samsung-ld9040.c:239:12: warning: stack frame size of 8344 bytes in function 'ld9040_prepare' kernel test robot
2021-06-15  2:42 ` kernel test robot

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