于 2013年08月12日 15:22, Gupta, Pekon 写道: > [Pekon]: For future scalability, good to update only MLC related bit-fields > So ORing instead of assigning.. > chip->cellinfo |= (p->bits_per_cell - 1)<< NAND_CI_CELLTYPE_SHIFT; > thanks for review. yes, use the ORing is better. I will fix it in the next version. thanks Huang Shijie