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authorOliver Hartkopp <socketcan@hartkopp.net>2020-11-20 11:04:44 +0100
committerMarc Kleine-Budde <mkl@pengutronix.de>2020-11-20 12:04:12 +0100
commitc7b74967799b1af52b3045d69d4c26836b2d41de (patch)
tree8ea93c983077794b4ea8825facfd35c3208da9cb /net/can
parentcd1124e76d740327be5d8f9ce3785ce1119daf4b (diff)
downloadlinux-c7b74967799b1af52b3045d69d4c26836b2d41de.tar.gz
can: replace can_dlc as variable/element for payload length
The naming of can_dlc as element of struct can_frame and also as variable name is misleading as it claims to be a 'data length CODE' but in reality it always was a plain data length. With the indroduction of a new 'len' element in struct can_frame we can now remove can_dlc as name and make clear which of the former uses was a plain length (-> 'len') or a data length code (-> 'dlc') value. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://lore.kernel.org/r/20201120100444.3199-1-socketcan@hartkopp.net [mkl: gs_usb: keep struct gs_host_frame::can_dlc as is] Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'net/can')
-rw-r--r--net/can/af_can.c2
-rw-r--r--net/can/gw.c2
-rw-r--r--net/can/j1939/main.c4
3 files changed, 4 insertions, 4 deletions
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 5d124c1559040..963bd71455179 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -888,7 +888,7 @@ static __init int can_init(void)
int err;
/* check for correct padding to be able to use the structs similarly */
- BUILD_BUG_ON(offsetof(struct can_frame, can_dlc) !=
+ BUILD_BUG_ON(offsetof(struct can_frame, len) !=
offsetof(struct canfd_frame, len) ||
offsetof(struct can_frame, data) !=
offsetof(struct canfd_frame, data));
diff --git a/net/can/gw.c b/net/can/gw.c
index 6b790b6ff8d26..de5e8859ec9b1 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -207,7 +207,7 @@ static void canframecpy(struct canfd_frame *dst, struct can_frame *src)
*/
dst->can_id = src->can_id;
- dst->len = src->can_dlc;
+ dst->len = src->len;
*(u64 *)dst->data = *(u64 *)src->data;
}
diff --git a/net/can/j1939/main.c b/net/can/j1939/main.c
index 137054bff9ec7..bb914d8b42168 100644
--- a/net/can/j1939/main.c
+++ b/net/can/j1939/main.c
@@ -62,7 +62,7 @@ static void j1939_can_recv(struct sk_buff *iskb, void *data)
skb_pull(skb, J1939_CAN_HDR);
/* fix length, set to dlc, with 8 maximum */
- skb_trim(skb, min_t(uint8_t, cf->can_dlc, 8));
+ skb_trim(skb, min_t(uint8_t, cf->len, 8));
/* set addr */
skcb = j1939_skb_to_cb(skb);
@@ -335,7 +335,7 @@ int j1939_send_one(struct j1939_priv *priv, struct sk_buff *skb)
canid |= skcb->addr.da << 8;
cf->can_id = canid;
- cf->can_dlc = dlc;
+ cf->len = dlc;
return can_send(skb, 1);