can: at91_can: directly define AT91_MB_RX_LAST



...instead of deriving it from AT91_MB_RX_FIRST and AT91_MB_RX_NUM.
This removes a level of computation, when switching the driver from
compile time constants to runtime values.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

parent 9c2e0a6d

drivers/net/can/at91_can.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -47,11 +47,10 @@
		* RX/TX Mailbox split
		* don't dare to touch
		*/
		#define AT91_MB_RX_NUM 11
		#define AT91_MB_TX_SHIFT 2

		#define AT91_MB_RX_FIRST 1
		#define AT91_MB_RX_LAST (AT91_MB_RX_FIRST + AT91_MB_RX_NUM - 1)
		#define AT91_MB_RX_LAST 11

		#define AT91_MB_RX_MASK(i) ((1 << (i)) - 1)
		#define AT91_MB_RX_SPLIT 8