Re: [PATCH] mmc: core: add MMC_QUIRK_BROKEN_WRITE_ZEROES for ESMT eMMC

[kernel test robot <lkp@intel.com>]

Hi Mayur,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v7.2-rc6 next-20260807]
[cannot apply to ulf-hansson-mmc-mirror/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Mayur-Kumar/mmc-core-add-MMC_QUIRK_BROKEN_WRITE_ZEROES-for-ESMT-eMMC/20260807-212705
base:   linus/master
patch link:    https://lore.kernel.org/r/20260725185129.43397-1-kmayur809%40gmail.com
patch subject: [PATCH] mmc: core: add MMC_QUIRK_BROKEN_WRITE_ZEROES for ESMT eMMC
config: loongarch-defconfig (https://download.01.org/0day-ci/archive/20260808/202608081816.H4q7m1Wl-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 12df34b8469b8095359de8c249cb1b2753fadeea)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260808/202608081816.H4q7m1Wl-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608081816.H4q7m1Wl-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/mmc/core/queue.c:195:23: error: use of undeclared identifier 'MMC_QUIRK_BROKEN_WRITE_ZEROS'
     195 |             !(card->quirks & MMC_QUIRK_BROKEN_WRITE_ZEROS))
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   1 error generated.


vim +/MMC_QUIRK_BROKEN_WRITE_ZEROS +195 drivers/mmc/core/queue.c

   176	
   177	static void mmc_queue_setup_discard(struct mmc_card *card,
   178			struct queue_limits *lim)
   179	{
   180		unsigned max_discard;
   181	
   182		max_discard = mmc_calc_max_discard(card);
   183		if (!max_discard)
   184			return;
   185	
   186		lim->max_hw_discard_sectors = max_discard;
   187		if (mmc_card_can_secure_erase_trim(card)) {
   188			if (mmc_card_fixed_secure_erase_trim_time(card))
   189				lim->max_secure_erase_sectors = UINT_MAX >> card->erase_shift;
   190			else
   191				lim->max_secure_erase_sectors = max_discard;
   192		}
   193	
   194		if (mmc_card_can_trim(card) && card->erased_byte == 0 &&
 > 195		    !(card->quirks & MMC_QUIRK_BROKEN_WRITE_ZEROS))
   196			lim->max_write_zeroes_sectors = max_discard;
   197	
   198		/* granularity must not be greater than max. discard */
   199		if (card->pref_erase > max_discard)
   200			lim->discard_granularity = SECTOR_SIZE;
   201		else
   202			lim->discard_granularity = card->pref_erase << 9;
   203	}
   204	

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