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1fd6fe8905
Currently the CTL LO fields are calculated on the platform-specific basis. It's implemented by means of the prepare_ctllo() callbacks using the ternary operator within the local variables init block at the beginning of the block scope. The functions code currently is relatively hard to comprehend and isn't that optimal since implies four conditional statements executed and two additional local variables defined. Let's simplify the DW AHB DMA prepare_ctllo() method by unrolling the ternary operators into the normal if-else statement, dropping redundant master-interface ID variables and initializing the local variables based on the singly evaluated DMA-transfer direction check. Thus the method will look much more readable since now the fields content can be easily inferred right from the if-else branch. Provide the same update in the Intel DMA32 core driver for the sake of the driver code unification. Note besides of the effects described above this update is basically a preparation before dropping the max burst encoding callback. The dropping will require to call the burst fields calculation methods right in the prepare_ctllo() callbacks. It would have made the later functions code even more complex should they were left in the original state. Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Acked-by: Andy Shevchenko <andy@kernel.org> Link: https://lore.kernel.org/r/20240802075100.6475-4-fancer.lancer@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org> |
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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.