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[ Upstream commit4523a56115] Currently we will not update the receive descriptor tail pointer in stmmac_rx_refill. Rx dma will think no available descriptors and stop once received packets exceed DMA_RX_SIZE, so that the rx only test will fail. Update the receive tail pointer in stmmac_rx_refill to add more descriptors to the rx channel, so packets can be received continually Fixes:54139cf3bb("net: stmmac: adding multiple buffers for rx") Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.