virtio wants to read bitwise types from userspace using get_user.  At the
moment this triggers sparse errors, since the value is passed through an
integer.

Fix that up using __force.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

The generic version is both easier to support and more correct.
Signed-off-by: NJonas Bonn <jonas@southpole.se>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

As per commits 2922585b ("lib: Sparc's strncpy_from_user is generic
enough, move under lib/") and 92ae03f2 ("x86: merge 32/64-bit
versions of 'strncpy_from_user()' and speed it up"), and corresponding
discussion on linux-arch.
Signed-off-by: NJonas Bonn <jonas@southpole.se>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/openrisc/include/asm/uaccess.h: included 'linux/thread_info.h'
twice, remove the duplicate.
Signed-off-by: NDanny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: NJonas Bonn <jonas@southpole.se>

Signed-off-by: NJonas Bonn <jonas@southpole.se>
Reviewed-by: NArnd Bergmann <arnd@arndb.de>