From: Geert Uytterhoeven geert+renesas@glider.be
[ Upstream commit 28e7f8ff90583791a034d43b5d2e3fe394142e13 ]
The GENMASK(h, l) macro creates a contiguous bitmask starting at bit position @l and ending at position @h, inclusive.
This did not trigger any error checks, as the individual register fields cover at most 3 of the 4 available bits.
Fixes: 08df16e07ad0a1ec ("pinctrl: sh-pfc: checker: Add drive strength register checks") Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Link: https://lore.kernel.org/r/8f82d6147fbe3367d4c83962480e97f58d9c96a2.163361565... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pinctrl/renesas/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pinctrl/renesas/core.c b/drivers/pinctrl/renesas/core.c index f2ab02225837e..f29130957e49a 100644 --- a/drivers/pinctrl/renesas/core.c +++ b/drivers/pinctrl/renesas/core.c @@ -890,7 +890,7 @@ static void __init sh_pfc_check_drive_reg(const struct sh_pfc_soc_info *info, if (!field->pin && !field->offset && !field->size) continue;
- mask = GENMASK(field->offset + field->size, field->offset); + mask = GENMASK(field->offset + field->size - 1, field->offset); if (mask & seen) sh_pfc_err("drive_reg 0x%x: field %u overlap\n", drive->reg, i);