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ACMD22 is used to verify the previously write operation. Normally, it returns the number of written sectors as u32. SDUC, however, returns it as u64. This is not a superfluous requirement, because SDUC writes may exceeds 2TB. For Linux mmc however, the previously write operation could not be more than the block layer limits, thus we make room for a u64 and cast the returning value to u32. Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Avri Altman <avri.altman@wdc.com> Link: https://lore.kernel.org/r/20241006051148.160278-8-avri.altman@wdc.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [Stephen Rothwell: Fix build error when moving to new rc from Linus's tree] Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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.