[PATCH 6/6] pinctrl: sh-pfc: Validate pins/marks in pin group at build time

[Geert Uytterhoeven <geert+renesas@xxxxxxxxx>]

Add a build-time check, to ensure the number of pins and pin marks in a
pin group matches.  This helps catching bugs early.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
 drivers/pinctrl/sh-pfc/sh_pfc.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/sh-pfc/sh_pfc.h b/drivers/pinctrl/sh-pfc/sh_pfc.h
index 78dc342d7b390e02..a2c5d530aaa1c0b3 100644
--- a/drivers/pinctrl/sh-pfc/sh_pfc.h
+++ b/drivers/pinctrl/sh-pfc/sh_pfc.h
@@ -41,7 +41,8 @@ struct sh_pfc_pin {
 		.name = #alias,				\
 		.pins = n##_pins,			\
 		.mux = n##_mux,				\
-		.nr_pins = ARRAY_SIZE(n##_pins),	\
+		.nr_pins = ARRAY_SIZE(n##_pins) +	\
+		BUILD_BUG_ON_ZERO(!(sizeof(n##_pins) == sizeof(n##_mux))), \
 	}
 #define SH_PFC_PIN_GROUP(n)	SH_PFC_PIN_GROUP_ALIAS(n, n)
 
-- 
2.17.1