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-rw-r--r--net/caif/caif_dev.c21
-rw-r--r--net/caif/caif_socket.c35
-rw-r--r--net/caif/cfdgml.c7
-rw-r--r--net/caif/cffrml.c8
-rw-r--r--net/caif/cfmuxl.c7
-rw-r--r--net/caif/cfserl.c7
-rw-r--r--net/caif/cfutill.c7
-rw-r--r--net/caif/cfveil.c5
-rw-r--r--net/caif/cfvidl.c5
9 files changed, 14 insertions, 88 deletions
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index b533bb0..a518fdd 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -120,25 +120,12 @@ static int transmit(struct cflayer *layer, struct cfpkt *pkt)
{
struct caif_device_entry *caifd =
container_of(layer, struct caif_device_entry, layer);
- struct sk_buff *skb, *skb2;
- int ret = -EINVAL;
+ struct sk_buff *skb;
+
skb = cfpkt_tonative(pkt);
skb->dev = caifd->netdev;
- /*
- * Don't allow SKB to be destroyed upon error, but signal resend
- * notification to clients. We can't rely on the return value as
- * congestion (NET_XMIT_CN) sometimes drops the packet, sometimes don't.
- */
- if (netif_queue_stopped(caifd->netdev))
- return -EAGAIN;
- skb2 = skb_get(skb);
-
- ret = dev_queue_xmit(skb2);
-
- if (!ret)
- kfree_skb(skb);
- else
- return -EAGAIN;
+
+ dev_queue_xmit(skb);
return 0;
}
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 37a4034..2021242 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -519,43 +519,14 @@ static int transmit_skb(struct sk_buff *skb, struct caifsock *cf_sk,
int noblock, long timeo)
{
struct cfpkt *pkt;
- int ret, loopcnt = 0;
pkt = cfpkt_fromnative(CAIF_DIR_OUT, skb);
memset(cfpkt_info(pkt), 0, sizeof(struct caif_payload_info));
- do {
-
- ret = -ETIMEDOUT;
- /* Slight paranoia, probably not needed. */
- if (unlikely(loopcnt++ > 1000)) {
- pr_warn("transmit retries failed, error = %d\n", ret);
- break;
- }
+ if (cf_sk->layer.dn == NULL)
+ return -EINVAL;
- if (cf_sk->layer.dn != NULL)
- ret = cf_sk->layer.dn->transmit(cf_sk->layer.dn, pkt);
- if (likely(ret >= 0))
- break;
- /* if transmit return -EAGAIN, then retry */
- if (noblock && ret == -EAGAIN)
- break;
- timeo = caif_wait_for_flow_on(cf_sk, 0, timeo, &ret);
- if (signal_pending(current)) {
- ret = sock_intr_errno(timeo);
- break;
- }
- if (ret)
- break;
- if (cf_sk->sk.sk_state != CAIF_CONNECTED ||
- sock_flag(&cf_sk->sk, SOCK_DEAD) ||
- (cf_sk->sk.sk_shutdown & RCV_SHUTDOWN)) {
- ret = -EPIPE;
- cf_sk->sk.sk_err = EPIPE;
- break;
- }
- } while (ret == -EAGAIN);
- return ret;
+ return cf_sk->layer.dn->transmit(cf_sk->layer.dn, pkt);
}
/* Copied from af_unix:unix_dgram_sendmsg, and adapted to CAIF */
diff --git a/net/caif/cfdgml.c b/net/caif/cfdgml.c
index 054fdb5..0382dec 100644
--- a/net/caif/cfdgml.c
+++ b/net/caif/cfdgml.c
@@ -108,10 +108,5 @@ static int cfdgml_transmit(struct cflayer *layr, struct cfpkt *pkt)
*/
info->hdr_len = 4;
info->dev_info = &service->dev_info;
- ret = layr->dn->transmit(layr->dn, pkt);
- if (ret < 0) {
- u32 tmp32;
- cfpkt_extr_head(pkt, &tmp32, 4);
- }
- return ret;
+ return layr->dn->transmit(layr->dn, pkt);
}
diff --git a/net/caif/cffrml.c b/net/caif/cffrml.c
index a445043..2423fed 100644
--- a/net/caif/cffrml.c
+++ b/net/caif/cffrml.c
@@ -120,7 +120,6 @@ static int cffrml_transmit(struct cflayer *layr, struct cfpkt *pkt)
int tmp;
u16 chks;
u16 len;
- int ret;
struct cffrml *this = container_obj(layr);
if (this->dofcs) {
chks = cfpkt_iterate(pkt, cffrml_checksum, 0xffff);
@@ -137,12 +136,7 @@ static int cffrml_transmit(struct cflayer *layr, struct cfpkt *pkt)
pr_err("Packet is erroneous!\n");
return -EPROTO;
}
- ret = layr->dn->transmit(layr->dn, pkt);
- if (ret < 0) {
- /* Remove header on faulty packet. */
- cfpkt_extr_head(pkt, &tmp, 2);
- }
- return ret;
+ return layr->dn->transmit(layr->dn, pkt);
}
static void cffrml_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
diff --git a/net/caif/cfmuxl.c b/net/caif/cfmuxl.c
index f8ce0f3..ebfda2c 100644
--- a/net/caif/cfmuxl.c
+++ b/net/caif/cfmuxl.c
@@ -184,7 +184,6 @@ static int cfmuxl_receive(struct cflayer *layr, struct cfpkt *pkt)
static int cfmuxl_transmit(struct cflayer *layr, struct cfpkt *pkt)
{
- int ret;
struct cfmuxl *muxl = container_obj(layr);
u8 linkid;
struct cflayer *dn;
@@ -198,11 +197,7 @@ static int cfmuxl_transmit(struct cflayer *layr, struct cfpkt *pkt)
info->hdr_len += 1;
linkid = info->channel_id;
cfpkt_add_head(pkt, &linkid, 1);
- ret = dn->transmit(dn, pkt);
- /* Remove MUX protocol header upon error. */
- if (ret < 0)
- cfpkt_extr_head(pkt, &linkid, 1);
- return ret;
+ return dn->transmit(dn, pkt);
}
static void cfmuxl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
diff --git a/net/caif/cfserl.c b/net/caif/cfserl.c
index 8303fe3..2715c84 100644
--- a/net/caif/cfserl.c
+++ b/net/caif/cfserl.c
@@ -179,15 +179,10 @@ static int cfserl_receive(struct cflayer *l, struct cfpkt *newpkt)
static int cfserl_transmit(struct cflayer *layer, struct cfpkt *newpkt)
{
struct cfserl *layr = container_obj(layer);
- int ret;
u8 tmp8 = CFSERL_STX;
if (layr->usestx)
cfpkt_add_head(newpkt, &tmp8, 1);
- ret = layer->dn->transmit(layer->dn, newpkt);
- if (ret < 0)
- cfpkt_extr_head(newpkt, &tmp8, 1);
-
- return ret;
+ return layer->dn->transmit(layer->dn, newpkt);
}
static void cfserl_ctrlcmd(struct cflayer *layr, enum caif_ctrlcmd ctrl,
diff --git a/net/caif/cfutill.c b/net/caif/cfutill.c
index 315c0d6..98e027d 100644
--- a/net/caif/cfutill.c
+++ b/net/caif/cfutill.c
@@ -100,10 +100,5 @@ static int cfutill_transmit(struct cflayer *layr, struct cfpkt *pkt)
*/
info->hdr_len = 1;
info->dev_info = &service->dev_info;
- ret = layr->dn->transmit(layr->dn, pkt);
- if (ret < 0) {
- u32 tmp32;
- cfpkt_extr_head(pkt, &tmp32, 4);
- }
- return ret;
+ return layr->dn->transmit(layr->dn, pkt);
}
diff --git a/net/caif/cfveil.c b/net/caif/cfveil.c
index c3b1dec..1a588cd 100644
--- a/net/caif/cfveil.c
+++ b/net/caif/cfveil.c
@@ -96,8 +96,5 @@ static int cfvei_transmit(struct cflayer *layr, struct cfpkt *pkt)
info->channel_id = service->layer.id;
info->hdr_len = 1;
info->dev_info = &service->dev_info;
- ret = layr->dn->transmit(layr->dn, pkt);
- if (ret < 0)
- cfpkt_extr_head(pkt, &tmp, 1);
- return ret;
+ return layr->dn->transmit(layr->dn, pkt);
}
diff --git a/net/caif/cfvidl.c b/net/caif/cfvidl.c
index bf6fef2..b2f5989 100644
--- a/net/caif/cfvidl.c
+++ b/net/caif/cfvidl.c
@@ -60,8 +60,5 @@ static int cfvidl_transmit(struct cflayer *layr, struct cfpkt *pkt)
info = cfpkt_info(pkt);
info->channel_id = service->layer.id;
info->dev_info = &service->dev_info;
- ret = layr->dn->transmit(layr->dn, pkt);
- if (ret < 0)
- cfpkt_extr_head(pkt, &videoheader, 4);
- return ret;
+ return layr->dn->transmit(layr->dn, pkt);
}
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