[NAND Question] When oob_required is used?

[Masahiro Yamada]

Hi.


I am seeing the reference implementations for the callback
in drivers/mtd/nand/nand_base.c


I see only some of them use the argument "oob_required".


- oob_required is used
nand_read_page_raw()
nand_write_page_raw()
nand_write_subpage_hwecc()


- oob_required is ignored
nand_read_page_raw_syndrome()
nand_read_page_swecc()
nand_read_page_hwecc()
nand_read_page_hwecc_oob_first()
nand_read_page_syndrome()
nand_write_page_raw_syndrome()
nand_write_page_swecc()
nand_write_page_hwecc()
nand_write_page_syndrome()



I could not get the logic
when "oob_required" is used.



When implementing drivers, the "oob_required"
should be respected (i.e. oob_poi should be transferred as well),
or is it OK to ignore it?




-- 
Best Regards
Masahiro Yamada