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commit95b39f07a1upstream. mtk_star_dma_unmap_rx() should unmap the dma_addr of old skb rather than that of new skb. Assign new_dma_addr to desc_data.dma_addr after all handling of old skb ends to avoid unexpected receive side error. Fixes:f96e9641e9("net: ethernet: mtk-star-emac: fix error path in RX handling") Signed-off-by: Biao Huang <biao.huang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.