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8754d98356
Early during NAND identification, mtd_info fields have not yet been initialized (namely, writesize and oobsize) and thus cannot be used for sanity checks yet. Of course if there is a misuse of nand_change_read_column_op() so early we won't be warned, but there is anyway no actual check to perform at this stage as we do not yet know the NAND geometry. So, if the fields are empty, especially mtd->writesize which is *always* set quite rapidly after identification, let's skip the sanity checks. nand_change_read_column_op() is subject to be used early for ONFI/JEDEC identification in the very unlikely case of: - bitflips appearing in the parameter page, - the controller driver not supporting simple DATA_IN cycles. As nand_change_read_column_op() uses nand_fill_column_cycles() the logic explaind above also applies in this secondary helper. Fixes: |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
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.