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can: at91_can: directly define AT91_MB_RX_LAST

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...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>
This commit is contained in:
Marc Kleine-Budde 2011-04-30 20:46:12 +02:00
parent 9c2e0a6d2f
commit 267cbe047c
1 changed files with 1 additions and 2 deletions

3
drivers/net/can/at91_can.c
View file

@ -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