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293f899594
Much like the samsung_tty driver (now I know where they copied the idea from), the 21285 uart driver uses 2 bytes from the "unused" array of struct uart_port to keep tx/rx enabled/disabled state. Those fields are going away (they were never really needed in the first place), so fix up the 21285 driver by another horrible hack. Instead of creating a whole structure for just 2 bytes, just use two bits from the private_data pointer instead, as that pointer is never used. The two bits reflect if tx/rx is now enabled/disabled. Astute readers will note that once rx is disabled, nothing ever seems to turn it back on, making one wonder if anyone has ever done this. Reported-by: kbuild test robot <lkp@intel.com> Cc: Dmitry Safonov <dima@arista.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/20191219145109.GA1962496@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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.