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The nand_default_block_markbad() and scan_block_fast() use high level APIs to get access to the BBM. On the other hand, nand_block_bad (the default implementation of ->block_bad) calls the lower level ->cmdfunc hook. This prevents drivers from using ->ecc.read_oob() even if optimized read operation is implemented. Besides, some NAND controllers may protect the BBM with ECC. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.