diff options
author | Marc Kleine-Budde <mkl@pengutronix.de> | 2010-10-21 18:39:26 +0200 |
---|---|---|
committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-07-20 17:48:53 +0200 |
commit | 9e4d6909a273ada78cf48379e478855bc13ae0cb (patch) | |
tree | bb07dcb34ec9019c4ee5b98b2f8eb82e0941b863 /drivers/net | |
parent | 007890d726602c925077381500f0b633cfacd711 (diff) |
can: janz-ican3: cleanup of ican3_to_can_frame and can_frame_to_ican3
This patch cleans up the ICAN3 to Linux CAN frame and vice versa
conversion functions:
- RX: Use get_can_dlc() to limit the dlc value.
- RX+TX: Don't copy the whole frame, only copy the amount of bytes
specified in cf->can_dlc.
Acked-by: Ira W. Snyder <iws@ovro.caltech.edu>
Tested-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/can/janz-ican3.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 754b803fa92..b19aca591c7 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -811,10 +811,10 @@ static void ican3_to_can_frame(struct ican3_dev *mod, cf->can_id |= desc->data[0] << 3; cf->can_id |= (desc->data[1] & 0xe0) >> 5; - cf->can_dlc = desc->data[1] & ICAN3_CAN_DLC_MASK; - memcpy(cf->data, &desc->data[2], sizeof(cf->data)); + cf->can_dlc = get_can_dlc(desc->data[1] & ICAN3_CAN_DLC_MASK); + memcpy(cf->data, &desc->data[2], cf->can_dlc); } else { - cf->can_dlc = desc->data[0] & ICAN3_CAN_DLC_MASK; + cf->can_dlc = get_can_dlc(desc->data[0] & ICAN3_CAN_DLC_MASK); if (desc->data[0] & ICAN3_EFF_RTR) cf->can_id |= CAN_RTR_FLAG; @@ -829,7 +829,7 @@ static void ican3_to_can_frame(struct ican3_dev *mod, cf->can_id |= desc->data[3] >> 5; /* 2-0 */ } - memcpy(cf->data, &desc->data[6], sizeof(cf->data)); + memcpy(cf->data, &desc->data[6], cf->can_dlc); } } @@ -861,7 +861,7 @@ static void can_frame_to_ican3(struct ican3_dev *mod, } /* copy the data bits into the descriptor */ - memcpy(&desc->data[6], cf->data, sizeof(cf->data)); + memcpy(&desc->data[6], cf->data, cf->can_dlc); } /* |