can: tcan4x5x: tcan4x5x_regmap_write(): remove not needed casts and replace 4 by...

This patch simplifies the tcan4x5x_regmap_write(0 function by removing not
needed casts and replaces hardcoded "4" by appropriate sizeof()s.

Reviewed-by: Dan Murphy <dmurphy@ti.com>
Tested-by: Sean Nyekjaer <sean@geanix.com>
Link: https://lore.kernel.org/r/20201215231746.1132907-10-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/drivers/net/can/m_can/tcan4x5x-regmap.c b/drivers/net/can/m_can/tcan4x5x-regmap.c
index 8f718f4..6345bcb 100644 (file)
--- a/drivers/net/can/m_can/tcan4x5x-regmap.c
+++ b/drivers/net/can/m_can/tcan4x5x-regmap.c
@@ -38,10 +38,9 @@ static int tcan4x5x_regmap_gather_write(void *context, const void *reg,
 
 static int tcan4x5x_regmap_write(void *context, const void *data, size_t count)
 {
-       u16 *reg = (u16 *)(data);
-       const u32 *val = data + 4;
-
-       return tcan4x5x_regmap_gather_write(context, reg, 4, val, count - 4);
+       return tcan4x5x_regmap_gather_write(context, data, sizeof(u32),
+                                           data + sizeof(u32),
+                                           count - sizeof(u32));
 }
 
 static int tcan4x5x_regmap_read(void *context,