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Yunsheng Lin
26f1ccdf60
desc_cb is used to store mapping and freeing info for the corresponding desc, which is used in the cleaning process. There will be more desc_cb type coming up when supporting the tx bounce buffer, change desc_cb type to bit-wise value in order to reduce the desc_cb type checking operation in the data path. Also move the desc_cb type definition to hns3_enet.h because it is only used in hns3_enet.c, and declare a local variable desc_cb in hns3_clear_desc() to reduce lines of code. Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> 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.