Hi Dmitry,

I love your patch! Yet something to improve:

[auto build test ERROR on tegra/for-next]
[also build test ERROR on block/for-next linus/master v5.6-rc4 next-20200306]
[cannot apply to ulf.hansson-mmc/next]
[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/Dmitry-Osipenko/Introduce-NVIDIA-Tegra-Partition-Tablex/20200306-124106
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git for-next
config: arm64-randconfig-a001-20200308 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=arm64 

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

All errors (new ones prefixed by >>):

   block/partitions/tegra.o: In function `tegra_partition_table_emmc_boot_offset':
>> block/partitions/tegra.c:370: undefined reference to `mmc_bdev_to_card'
   block/partitions/tegra.c:370:(.text+0x66c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `mmc_bdev_to_card'
>> block/partitions/tegra.c:379: undefined reference to `mmc_card_is_blockaddr'
   block/partitions/tegra.c:379:(.text+0x69c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `mmc_card_is_blockaddr'

vim +370 block/partitions/tegra.c

   366	
   367	static int
   368	tegra_partition_table_emmc_boot_offset(struct tegra_partition_table_parser *ptp)
   369	{
 > 370		struct mmc_card *card = mmc_bdev_to_card(ptp->state->bdev);
   371		const struct of_device_id *matched;
   372		const u32 *sdhci_bases;
   373		u32 sdhci_base;
   374		unsigned int i;
   375		int err;
   376	
   377		/* filter out unexpected/untested boot sources */
   378		if (!card || card->ext_csd.rev < 3 ||
 > 379		    !mmc_card_is_blockaddr(card) ||
   380		     mmc_card_is_removable(card->host))
   381			return -1;
   382	
   383		/* skip everything unrelated to Tegra eMMC */
   384		matched = of_match_node(tegra_sdhci_match, card->host->parent->of_node);
   385		if (!matched)
   386			return -1;
   387	
   388		sdhci_bases = matched->data;
   389	
   390		/* figure out SDHCI instance ID by the base address */
   391		err = of_property_read_u32_index(card->host->parent->of_node,
   392						 "reg", 0, &sdhci_base);
   393		if (err)
   394			return -1;
   395	
   396		for (i = 0; i < TEGRA_PT_SDHCI_DEVICE_INSTANCES; i++) {
   397			if (sdhci_base == sdhci_bases[i])
   398				break;
   399		}
   400	
   401		if (i == TEGRA_PT_SDHCI_DEVICE_INSTANCES)
   402			return -1;
   403	
   404		ptp->dev_id       = TEGRA_PT_SDHCI_DEVICE_ID;
   405		ptp->dev_instance = i;
   406	
   407		/*
   408		 * eMMC storage has two special boot partitions in addition to the
   409		 * main one.  NVIDIA's bootloader linearizes eMMC boot0->boot1->main
   410		 * accesses, this means that the partition table addresses are shifted
   411		 * by the size of boot partitions.  In accordance with the eMMC
   412		 * specification, the boot partition size is calculated as follows:
   413		 *
   414		 *	boot partition size = 128K byte x BOOT_SIZE_MULT
   415		 *
   416		 * This function returns number of sectors occupied by the both boot
   417		 * partitions.
   418		 */
   419		return card->ext_csd.raw_boot_mult * SZ_128K /
   420		       SECTOR_SIZE * MMC_NUM_BOOT_PARTITION;
   421	}
   422	

---
0-DAY CI Kernel Test Service, Intel Corporation
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