diff mbox series

[v3,3/6] pinctrl: renesas: rzg2l: Add BUILD_BUG_ON() checks

Message ID 20230102221815.273719-4-prabhakar.mahadev-lad.rj@bp.renesas.com
State New
Headers show
Series [v3,1/6] dt-bindings: interrupt-controller: renesas,rzg2l-irqc: Document RZ/G2UL SoC | expand

Commit Message

Lad, Prabhakar Jan. 2, 2023, 10:18 p.m. UTC 
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Add BUILD_BUG_ON() checks to avoid overflows for GPIO configs for each
supported SoC.

While at it, for readability set n_port_pins based on the GPIO pin configs
and not on GPIO names for r9a07g044_data as done for r9a07g043_data.

Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
v2 -> v3
* No change

v1 -> v2
* New patch
---
 drivers/pinctrl/renesas/pinctrl-rzg2l.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Comments

Geert Uytterhoeven Jan. 25, 2023, 11:32 a.m. UTC | #1 
On Mon, Jan 2, 2023 at 11:19 PM Prabhakar <prabhakar.csengg@gmail.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Add BUILD_BUG_ON() checks to avoid overflows for GPIO configs for each
> supported SoC.
>
> While at it, for readability set n_port_pins based on the GPIO pin configs
> and not on GPIO names for r9a07g044_data as done for r9a07g043_data.
>
> Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> v2 -> v3
> * No change

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in renesas-pinctrl-for-v6.3.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
diff mbox series

Patch

diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 6f762097557a..04b31f0c6b34 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -1468,6 +1468,12 @@  static int rzg2l_pinctrl_probe(struct platform_device *pdev)
 	struct rzg2l_pinctrl *pctrl;
 	int ret;
 
+	BUILD_BUG_ON(ARRAY_SIZE(rzg2l_gpio_configs) * RZG2L_PINS_PER_PORT >
+		     ARRAY_SIZE(rzg2l_gpio_names));
+
+	BUILD_BUG_ON(ARRAY_SIZE(r9a07g043_gpio_configs) * RZG2L_PINS_PER_PORT >
+		     ARRAY_SIZE(rzg2l_gpio_names));
+
 	pctrl = devm_kzalloc(&pdev->dev, sizeof(*pctrl), GFP_KERNEL);
 	if (!pctrl)
 		return -ENOMEM;
@@ -1531,7 +1537,7 @@  static struct rzg2l_pinctrl_data r9a07g044_data = {
 	.port_pin_configs = rzg2l_gpio_configs,
 	.n_ports = ARRAY_SIZE(rzg2l_gpio_configs),
 	.dedicated_pins = rzg2l_dedicated_pins.common,
-	.n_port_pins = ARRAY_SIZE(rzg2l_gpio_names),
+	.n_port_pins = ARRAY_SIZE(rzg2l_gpio_configs) * RZG2L_PINS_PER_PORT,
 	.n_dedicated_pins = ARRAY_SIZE(rzg2l_dedicated_pins.common) +
 		ARRAY_SIZE(rzg2l_dedicated_pins.rzg2l_pins),
 };