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| Filename | Latest commit message | Latest commit date |
|---|---|---|
5571f36f21
[ Upstream commit 0941d5166629cb766000530945e54b4e49680c68 ]
The maximum amount of data to transfer in a single DMA request is
calculated from the FIFO sizes (which is technically not 100% correct,
but a simplification, as it is limited by the maximum word count values
in the Transmit and Control Data Registers). However, in case there is
both data to transmit and to receive, the transmit limit is overwritten
by the receive limit.
Fix this by using the minimum applicable FIFO size instead. Move the
calculation outside the loop, so it is not repeated for each individual
DMA transfer.
As currently tx_fifo_size is always equal to rx_fifo_size, this bug had
no real impact.
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.