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    SubjectRe: [PATCH v2 12/25] mtd: nand: use the mtd instance embedded in struct nand_chip
    Hi Boris,

    [auto build test ERROR on next-20151127]
    [cannot apply to mtd/master v4.4-rc3 v4.4-rc2 v4.4-rc1 v4.4-rc3]

    url: https://github.com/0day-ci/linux/commits/Boris-Brezillon/mtd-nand-refactor-the-NAND-subsystem-part-1/20151201-190822
    config: arm-imx_v6_v7_defconfig (attached as .config)
    reproduce:
    wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
    chmod +x ~/bin/make.cross
    # save the attached .config to linux build tree
    make.cross ARCH=arm

    All errors (new ones prefixed by >>):

    drivers/mtd/nand/gpmi-nand/gpmi-nand.c: In function 'set_geometry_by_ecc_info':
    >> drivers/mtd/nand/gpmi-nand/gpmi-nand.c:142:39: error: 'mtd' undeclared (first use in this function)
    struct nand_chip *chip = mtd_to_nand(mtd);
    ^
    drivers/mtd/nand/gpmi-nand/gpmi-nand.c:142:39: note: each undeclared identifier is reported only once for each function it appears in
    drivers/mtd/nand/gpmi-nand/gpmi-nand.c: In function 'gpmi_init_last':
    drivers/mtd/nand/gpmi-nand/gpmi-nand.c:1840:39: error: 'mtd' undeclared (first use in this function)
    struct nand_chip *chip = mtd_to_nand(mtd);
    ^
    drivers/mtd/nand/gpmi-nand/gpmi-nand.c:1841:19: warning: unused variable 'mtd' [-Wunused-variable]
    struct mtd_info *mtd = nand_to_mtd(chip);
    ^

    vim +/mtd +142 drivers/mtd/nand/gpmi-nand/gpmi-nand.c

    2febcdf84 Huang Shijie 2013-05-17 136 *
    2febcdf84 Huang Shijie 2013-05-17 137 * We may have available oob space in this case.
    2febcdf84 Huang Shijie 2013-05-17 138 */
    2febcdf84 Huang Shijie 2013-05-17 139 static bool set_geometry_by_ecc_info(struct gpmi_nand_data *this)
    2febcdf84 Huang Shijie 2013-05-17 140 {
    2febcdf84 Huang Shijie 2013-05-17 141 struct bch_geometry *geo = &this->bch_geometry;
    6bdedcfa5 Boris Brezillon 2015-12-01 @142 struct nand_chip *chip = mtd_to_nand(mtd);
    4864cfd67 Boris Brezillon 2015-12-01 143 struct mtd_info *mtd = nand_to_mtd(chip);
    2febcdf84 Huang Shijie 2013-05-17 144 struct nand_oobfree *of = gpmi_hw_ecclayout.oobfree;
    2febcdf84 Huang Shijie 2013-05-17 145 unsigned int block_mark_bit_offset;

    :::::: The code at line 142 was first introduced by commit
    :::::: 6bdedcfa57b52f471682054a599855677b1b132c mtd: nand: make use of mtd_to_nand() in NAND drivers

    :::::: TO: Boris Brezillon <boris.brezillon@free-electrons.com>
    :::::: CC: 0day robot <fengguang.wu@intel.com>

    ---
    0-DAY kernel test infrastructure Open Source Technology Center
    https://lists.01.org/pipermail/kbuild-all Intel Corporation
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