mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-02 12:10:23 -04:00
69fa95905d
This patch introduces a completion that is completed in spi_finalize_current_message() and waited for in __spi_pump_transfer_message(). This way all manipulation of ctlr->cur_msg is done with the io_mutex held and strictly ordered: __spi_pump_transfer_message() will not return until spi_finalize_current_message() is done using ctlr->cur_msg, and its calling context is only touching ctlr->cur_msg after returning. Due to this, we can safely drop the spin-locks around ctlr->cur_msg. Signed-off-by: David Jander <david@protonic.nl> Link: https://lore.kernel.org/r/20220621061234.3626638-11-david@protonic.nl Signed-off-by: Mark Brown <broonie@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.