[RFC PATCH v2 4/6] can: flexcan: use helpers to setup the error frame

[Dario Binacchi <dario.binacchi@amarulasolutions.com>]

The patch replaces the code that directly accesses cf->data[] for setting
up the CAN error frame with the appropriate helpers.

Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>

---

Changes in v2:
- Replace the macros with static inline funcions calls.
- Update the commit message

 drivers/net/can/flexcan/flexcan-core.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c
index 790b8e162d73..85a124a31752 100644
--- a/drivers/net/can/flexcan/flexcan-core.c
+++ b/drivers/net/can/flexcan/flexcan-core.c
@@ -828,33 +828,31 @@ static void flexcan_irq_bus_err(struct net_device *dev, u32 reg_esr)
 	if (unlikely(!skb))
 		return;
 
-	cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR;
+	can_frame_error_init(cf);
 
 	if (reg_esr & FLEXCAN_ESR_BIT1_ERR) {
 		netdev_dbg(dev, "BIT1_ERR irq\n");
-		cf->data[2] |= CAN_ERR_PROT_BIT1;
+		can_frame_set_err_bit1(cf);
 	}
 	if (reg_esr & FLEXCAN_ESR_BIT0_ERR) {
 		netdev_dbg(dev, "BIT0_ERR irq\n");
-		cf->data[2] |= CAN_ERR_PROT_BIT0;
+		can_frame_set_err_bit0(cf);
 	}
 	if (reg_esr & FLEXCAN_ESR_ACK_ERR) {
 		netdev_dbg(dev, "ACK_ERR irq\n");
-		cf->can_id |= CAN_ERR_ACK;
-		cf->data[3] = CAN_ERR_PROT_LOC_ACK;
+		can_frame_set_err_ack(cf);
 	}
 	if (reg_esr & FLEXCAN_ESR_CRC_ERR) {
 		netdev_dbg(dev, "CRC_ERR irq\n");
-		cf->data[2] |= CAN_ERR_PROT_BIT;
-		cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ;
+		can_frame_set_err_crc(cf);
 	}
 	if (reg_esr & FLEXCAN_ESR_FRM_ERR) {
 		netdev_dbg(dev, "FRM_ERR irq\n");
-		cf->data[2] |= CAN_ERR_PROT_FORM;
+		can_frame_set_err_form(cf);
 	}
 	if (reg_esr & FLEXCAN_ESR_STF_ERR) {
 		netdev_dbg(dev, "STF_ERR irq\n");
-		cf->data[2] |= CAN_ERR_PROT_STUFF;
+		can_frame_set_err_stuff(cf);
 	}
 
 	can_update_bus_error_stats(dev, cf);
-- 
2.43.0