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The TX DMA channel data is accessed by the xrx200_start_xmit() and the xrx200_tx_housekeeping() function from different threads. Make sure the accesses are synchronized by acquiring the netif_tx_lock() in the xrx200_tx_housekeeping() function too. This lock is acquired by the kernel before calling xrx200_start_xmit(). Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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.