The regs32 machinery uses readl. I forgot the mandatory include
and the code was not compiling on all archs.
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NAlessandro Rubini <rubini@gnudd.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>