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can: flexcan: replace open coded "mailbox code" by proper define

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This patch replaces a open coded variant of a "mailbox code" definition by an
existing define, improves code readability.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Marc Kleine-Budde 2014-09-23 11:18:11 +02:00
parent 6f75fce1ea
commit 10d089bd4b
1 changed files with 1 additions and 2 deletions
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3
drivers/net/can/flexcan.c
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@ -158,7 +158,6 @@
FLEXCAN_IFLAG_BUF(FLEXCAN_TX_BUF_ID))
/* FLEXCAN message buffers */
#define FLEXCAN_MB_CNT_CODE(x) (((x) & 0xf) << 24)
#define FLEXCAN_MB_CODE_RX_INACTIVE (0x0 << 24)
#define FLEXCAN_MB_CODE_RX_EMPTY (0x4 << 24)
#define FLEXCAN_MB_CODE_RX_FULL (0x2 << 24)
@ -478,7 +477,7 @@ static int flexcan_start_xmit(struct sk_buff *skb, struct net_device *dev)
struct flexcan_regs __iomem *regs = priv->base;
struct can_frame *cf = (struct can_frame *)skb->data;
u32 can_id;
u32 ctrl = FLEXCAN_MB_CNT_CODE(0xc) | (cf->can_dlc << 16);
u32 ctrl = FLEXCAN_MB_CODE_TX_DATA | (cf->can_dlc << 16);
if (can_dropped_invalid_skb(dev, skb))
return NETDEV_TX_OK;