Hi, [auto build test ERROR on mtd/master] [also build test ERROR on v4.7-rc2 next-20160608] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Boris-Brezillon/mtd-nand-allow-vendor-specific-detection-initialization/20160608-210755 base: git://git.infradead.org/linux-mtd.git master config: x86_64-randconfig-s3-06081945 (attached as .config) compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/mtd/nand/nand_hynix.c: In function 'hynix_nand_decode_id': >> drivers/mtd/nand/nand_hynix.c:239:20: error: 'SZ_1M' undeclared (first use in this function) mtd->erasesize = SZ_1M << tmp; ^~~~~ drivers/mtd/nand/nand_hynix.c:239:20: note: each undeclared identifier is reported only once for each function it appears in >> drivers/mtd/nand/nand_hynix.c:241:20: error: 'SZ_512K' undeclared (first use in this function) mtd->erasesize = SZ_512K + SZ_256K; ^~~~~~~ >> drivers/mtd/nand/nand_hynix.c:241:30: error: 'SZ_256K' undeclared (first use in this function) mtd->erasesize = SZ_512K + SZ_256K; ^~~~~~~ >> drivers/mtd/nand/nand_hynix.c:243:20: error: 'SZ_128K' undeclared (first use in this function) mtd->erasesize = SZ_128K << tmp; ^~~~~~~ vim +/SZ_1M +239 drivers/mtd/nand/nand_hynix.c 233 * we start counting at 128KiB and shift this value the content of 234 * ID[3][4:5]. 235 * The only exception is when ID[3][4:5] == 3 and ID[3][7] == 0, in 236 * this case the erasesize is set to 768KiB. 237 */ 238 if (chip->id.data[3] & 0x80) > 239 mtd->erasesize = SZ_1M << tmp; 240 else if (tmp == 3) > 241 mtd->erasesize = SZ_512K + SZ_256K; 242 else > 243 mtd->erasesize = SZ_128K << tmp; 244 245 /* 246 * Modern Toggle DDR NANDs have a valid JEDECID even though they are --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation