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[ Upstream commit c94612a72ac87b0337a0d85b9263266776ed4190 ] I believe RX FIFO depth define 0 is incorrect on Wangxun 10Gb NIC. It must be at least 1 since code is able to read received data from the DW_IC_DATA_CMD register. For now this define is irrelevant since the txgbe_i2c_dw_xfer_quirk() doesn't use the rx_fifo_depth member variable of struct dw_i2c_dev but is needed when converting code into generic polling mode implementation. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Tested-by: Jiawen Wu <jiawenwu@trustnetic.com> Signed-off-by: Andi Shyti <andi.shyti@kernel.org> 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.
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.