Fix: spi.c: In function 'spi_init_f': spi.c:144:21: warning: variable 'iop' set but not used [-Wunused-but-set-variable] spi.c:142:22: warning: variable 'cpi' set but not used [-Wunused-but-set-variable] Signed-off-by: Wolfgang Denk <wd@denx.de>