drivers/gpu/drm/panel/panel-samsung-ld9040.c:240:12: warning: stack frame size (8344) exceeds limit (8192) in 'ld9040_prepare'

Hi David,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   3a0dd7ba4f44cdc116d83712f61e7c1a95be3588
commit: 700a281905f2a4ccf6f3b2d3cd6985e034b4b021 spi: add offload TX/RX streaming APIs
date:   1 year, 6 months ago
config: x86_64-randconfig-003-20260819 (https://download.01.org/0day-ci/archive/20260819/[email protected]/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260819/[email protected]/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
| Fixes: 700a281905f2 ("spi: add offload TX/RX streaming APIs")
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All warnings (new ones prefixed by >>):

   In file included from <built-in>:3:
   In file included from include/linux/compiler_types.h:171:
   include/linux/compiler-clang.h:28:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined]
      28 | #define __SANITIZE_ADDRESS__
         |         ^
   <built-in>:353:9: note: previous definition is here
     353 | #define __SANITIZE_ADDRESS__ 1
         |         ^
>> drivers/gpu/drm/panel/panel-samsung-ld9040.c:240:12: warning: stack frame size (8344) exceeds limit (8192) in 'ld9040_prepare' [-Wframe-larger-than]
     240 | static int ld9040_prepare(struct drm_panel *panel)
         |            ^
   2 warnings generated.


vim +/ld9040_prepare +240 drivers/gpu/drm/panel/panel-samsung-ld9040.c

ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  239  
099b3e8699322e drivers/gpu/drm/panel/panel-ld9040.c Ajay Kumar    2014-07-31 @240  static int ld9040_prepare(struct drm_panel *panel)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  241  {
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  242  	struct ld9040 *ctx = panel_to_ld9040(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  243  	int ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  244  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  245  	ret = ld9040_power_on(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  246  	if (ret < 0)
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  247  		return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  248  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  249  	ld9040_init(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  250  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  251  	ret = ld9040_clear_error(ctx);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  252  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  253  	if (ret < 0)
8141028278c2ea drivers/gpu/drm/panel/panel-ld9040.c Ajay Kumar    2014-07-31  254  		ld9040_unprepare(panel);
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  255  
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  256  	return ret;
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  257  }
ff219937763253 drivers/gpu/drm/panel/panel-ld9040.c Andrzej Hajda 2014-03-26  258  

:::::: The code at line 240 was first introduced by commit
:::::: 099b3e8699322efb7229913d2c1651588205f182 drm/panel: ld9040: Add dummy prepare and unprepare routines

:::::: TO: Ajay Kumar <[email protected]>
:::::: CC: Thierry Reding <[email protected]>

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