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8cae665743
There are two issues in the current PRS disable sysfs store function
wq_prs_disable_store():
1. Since PRS disable knob is invisible if PRS disable is not supported
in WQ, it's redundant to check PRS support again in the store function
again. Remove the redundant PRS support check.
2. Since PRS disable is read-only when the device is not configurable,
PRS disable cannot be changed on the device. Add device configurable
check in the store function.
Fixes: f2dc327131 ("dmaengine: idxd: add per wq PRS disable")
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20230811012635.535413-2-fenghua.yu@intel.com
Signed-off-by: Vinod Koul <vkoul@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.