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Sparse complains that: warning: restricted send_ctl_elem_iface_t degrades to integer. I have looked at this code, and the code is fine as-is. Normally we would frown on using the __force directive to silence Sparse warnings but in this case it's fine. Case statements can't be made into __bitwise types. We also can't change the type of "ctl->iface" either because that is part of the user space API. So just add a (__force int) to make the warning go away. Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Rajat Asthana <thisisrast7@gmail.com> Link: https://lore.kernel.org/r/20210519134119.848055-1-thisisrast7@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.