On Mon, 28 Oct 2019 17:55:24 +0800 Mason Yang <masonccyang@xxxxxxxxxxx> wrote: > /* Set default functions */ > static void nand_set_defaults(struct nand_chip *chip) > { > @@ -5782,8 +5810,8 @@ static int nand_scan_tail(struct nand_chip *chip) > mtd->_read_oob = nand_read_oob; > mtd->_write_oob = nand_write_oob; > mtd->_sync = nand_sync; > - mtd->_lock = NULL; > - mtd->_unlock = NULL; > + mtd->_lock = nand_lock; > + mtd->_unlock = nand_unlock; > mtd->_suspend = nand_suspend; > mtd->_resume = nand_resume; > mtd->_reboot = nand_shutdown; > diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h > index 4ab9bcc..2430ecd 100644 > --- a/include/linux/mtd/rawnand.h > +++ b/include/linux/mtd/rawnand.h > @@ -1136,6 +1136,9 @@ struct nand_chip { > const struct nand_manufacturer *desc; > void *priv; > } manufacturer; > + > + int (*_lock)(struct nand_chip *chip, loff_t ofs, uint64_t len); > + int (*_unlock)(struct nand_chip *chip, loff_t ofs, uint64_t len); Please drop this _ prefix. > }; ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/