From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Kleine-Budde Subject: [PATCH 14/17] can: m_can: fix not set can_dlc for remote frame Date: Tue, 18 Nov 2014 21:37:44 +0100 Message-ID: <1416343067-9810-15-git-send-email-mkl@pengutronix.de> References: <1416343067-9810-1-git-send-email-mkl@pengutronix.de> Cc: davem@davemloft.net, linux-can@vger.kernel.org, kernel@pengutronix.de, Dong Aisheng , Marc Kleine-Budde To: netdev@vger.kernel.org Return-path: In-Reply-To: <1416343067-9810-1-git-send-email-mkl@pengutronix.de> Sender: linux-can-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Dong Aisheng The original code missed to set the cf->can_dlc in the RTR case, so add it. Signed-off-by: Dong Aisheng Signed-off-by: Marc Kleine-Budde --- drivers/net/can/m_can/m_can.c | 7 ++++--- 1 file 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, -- 2.1.3