XTENSA: warn about including <asm/rwsem.h> directly.

For consistency with other architectures, warn about including
<asm-xtensa/rwsem.h> directly.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Zankel <chris@zankel.net>
1 file changed