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c02d630398
[ Upstream commit 0e45a09a1da0872786885c505467aab8fb29b5b4 ]
serio_pause_rx() and serio_continue_rx() are usually used together to
temporarily stop receiving interrupts/data for a given serio port.
Define "serio_pause_rx" guard for this so that the port is always
resumed once critical section is over.
Example:
scoped_guard(serio_pause_rx, elo->serio) {
elo->expected_packet = toupper(packet[0]);
init_completion(&elo->cmd_done);
}
Link: https://lore.kernel.org/r/20240905041732.2034348-2-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Stable-dep-of: 08bd5b7c9a24 ("Input: synaptics - fix crash when enabling pass-through port")
Signed-off-by: Sasha Levin <sashal@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.