54fd8cd617
The whole scatterlist chain is submitted to the DMA engine, but the code is written to just account for the length of the first sg entry. When the DMA transfer is finished, all the data in the request has been transferred, account for this instead. This only works because the moxart_request() function isn't checking that all data was transferred and will unconditionally issue mmc_request_done() after returning successfully from moxart_transfer_dma(). Keep the assignment of accounted bytes in .bytes_xfered but move it after the completion where we know it has actually happened. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20240127-mmc-proper-kmap-v2-3-d8e732aa97d1@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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 Restructured Text 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.