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| author | Dong Aisheng <b29396@freescale.com> | 2014-11-18 19:00:54 +0800 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2014-11-18 21:35:04 +0100 |
| commit | 921f168109d029e3b59459c3a2754f0e2a70fad3 (patch) | |
| tree | 9cae8a1f1abfbf8d3e88e4fd1ba2f8df37b02d34 /drivers/net/can/m_can | |
| parent | f6a99649526370c7a88b86736c02f2a74b5b20e7 (diff) | |
| download | lwn-921f168109d029e3b59459c3a2754f0e2a70fad3.tar.gz lwn-921f168109d029e3b59459c3a2754f0e2a70fad3.zip | |
can: m_can: fix not set can_dlc for remote frame
The original code missed to set the cf->can_dlc in the RTR case, so add it.
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/m_can')
| -rw-r--r-- | drivers/net/can/m_can/m_can.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index 214160b4c314..98f7e0ea7f6a 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -330,7 +330,7 @@ static void m_can_read_fifo(const struct net_device *dev, struct can_frame *cf, u32 rxfs) { struct m_can_priv *priv = netdev_priv(dev); - u32 id, fgi; + u32 id, fgi, dlc; /* calculate the fifo get index for where to read data */ fgi = (rxfs & RXFS_FGI_MASK) >> RXFS_FGI_OFF; @@ -340,11 +340,12 @@ static void m_can_read_fifo(const struct net_device *dev, struct can_frame *cf, else cf->can_id = (id >> 18) & CAN_SFF_MASK; + dlc = m_can_fifo_read(priv, fgi, M_CAN_FIFO_DLC); + cf->can_dlc = get_can_dlc((dlc >> 16) & 0x0F); + if (id & RX_BUF_RTR) { cf->can_id |= CAN_RTR_FLAG; } else { - id = m_can_fifo_read(priv, fgi, M_CAN_FIFO_DLC); - cf->can_dlc = get_can_dlc((id >> 16) & 0x0F); *(u32 *)(cf->data + 0) = m_can_fifo_read(priv, fgi, M_CAN_FIFO_DATA(0)); *(u32 *)(cf->data + 4) = m_can_fifo_read(priv, fgi, |