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commit 435e8fc059dbe0eec823a75c22da2972390ba9e0 upstream. In "drm/i915: Add support for mandatory cmdparsing" we introduced the concept of mandatory parsing. This allows the cmdparser to be invoked even when user passes batch_len=0 to the execbuf ioctl's. However, the cmdparser needs to know the extents of the buffer being scanned. Refactor the code to ensure the cmdparser uses the actual object size, instead of the incoming length, if user passes 0. Signed-off-by: Jon Bloomfield <jon.bloomfield@intel.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Tyler Hicks <tyhicks@canonical.com> Reviewed-by: Chris Wilson <chris.p.wilson@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. 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.