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Ian Abbott 281d129350 comedi: Fix some signed shift left operations 
commit ab705c8c35 upstream.

Correct some left shifts of the signed integer constant 1 by some
unsigned number less than 32.  Change the constant to 1U to avoid
shifting a 1 into the sign bit.

The corrected functions are comedi_dio_insn_config(),
comedi_dio_update_state(), and __comedi_device_postconfig().

Fixes: e523c6c862 ("staging: comedi: drivers: introduce comedi_dio_insn_config()")
Fixes: 05e60b13a3 ("staging: comedi: drivers: introduce comedi_dio_update_state()")
Fixes: 09567cb437 ("staging: comedi: initialize subdevice s->io_bits in postconfig")
Cc: stable@vger.kernel.org # 5.13+
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20250707121555.65424-1-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-07-24 08:51:51 +02:00
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README

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.