> +++ b/drivers/auxdisplay/hd44780.c > @@ -62,17 +62,12 @@ static void hd44780_strobe_gpio(struct hd44780 *hd) > /* write to an LCD panel register in 8 bit GPIO mode */ > static void hd44780_write_gpio8(struct hd44780 *hd, u8 val, unsigned int rs) > { > - int values[10]; /* for DATA[0-7], RS, RW */ > - unsigned int i, n; > - > - for (i = 0; i < 8; i++) > - values[PIN_DATA0 + i] = !!(val & BIT(i)); > - values[PIN_CTRL_RS] = rs; > - n = 9; > - if (hd->pins[PIN_CTRL_RW]) { > - values[PIN_CTRL_RW] = 0; > - n++; > - } > + DECLARE_BITMAP(values, 10); /* for DATA[0-7], RS, RW */ > + unsigned int n; > + > + *values = val; > + __assign_bit(8, values, rs); > + n = hd->pins[PIN_CTRL_RW] ? 10 : 9; Doesn't this assume little endian bitmaps? Has anyone tested this on big-endian machines?