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The ptr_to_compat() call takes a "void __user *", so cast the compat drm calls that use it to avoid the following warnings from sparse: drivers/gpu/drm/drm_ioc32.c:188:39: warning: incorrect type in argument 1 (different address spaces) drivers/gpu/drm/drm_ioc32.c:188:39: expected void [noderef] <asn:1>*uptr drivers/gpu/drm/drm_ioc32.c:188:39: got void *[addressable] [assigned] handle drivers/gpu/drm/drm_ioc32.c:529:41: warning: incorrect type in argument 1 (different address spaces) drivers/gpu/drm/drm_ioc32.c:529:41: expected void [noderef] <asn:1>*uptr drivers/gpu/drm/drm_ioc32.c:529:41: got void *[addressable] [assigned] handle Cc: stable@vger.kernel.org Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190301120046.26961-1-ben.dooks@codethink.co.uk
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.