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5fd8f9a859
drivers/tty/serial/8250/8250_port.c: In function 'serial8250_handle_irq':
drivers/tty/serial/8250/8250_port.c:1882:6: warning: unused variable 'dma_err' [-Wunused-variable]
int dma_err = -1;
^~~~~~~
Fixes: 68ae37643a ("serial: 8250: support rx dma mode only")
Change-Id: I8c4ca9390777f7e8b07d5c6c329f005546c7d5fd
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
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.