kernel/git/stable/linux.git/net/mac802154/tx.c, branch linux-3.16.y

net: mac802154: tx: expand tailroom if necessary

2018-12-16T22:08:36+00:00

commit f9c52831133050c6b82aa8b6831c92da2bbf2a0b upstream. This patch is necessary if case of AF_PACKET or other socket interface which I am aware of it and didn't allocated the necessary room. Reported-by: David Palma Reported-by: Rabi Narayan Sahoo Signed-off-by: Alexander Aring Signed-off-by: Stefan Schmidt [bwh: Backported to 3.16: - Substitute literal number for IEEE802154_FCS_LEN - Adjust context] Signed-off-by: Ben Hutchings

mac802154: tx: use put_unaligned_le16 for copy crc

2018-12-16T22:08:36+00:00

commit 061ef8f915988839b12460c47ebfcf3700e124f0 upstream. This patch replaces the memcpy with a put_unaligned_le16. The placement of crc inside of PSDU can also be unaligned. With memcpy this can fail on some architectures. Signed-off-by: Alexander Aring Reported-by: Marcel Holtmann Signed-off-by: Marcel Holtmann [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings

mac802154: tx: cleanup crc calculation

2018-12-16T22:08:35+00:00

commit b7eec52bcb7ab93a8cce0f718f42fa17d6d91745 upstream. Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings

mac802154: common tx error path

2018-12-16T22:08:35+00:00

commit f55889128a776b51581394b20abd0b470304cf95 upstream. This patch introduce the common error path on failure of Tx by inserting the label 'err_tx'. Signed-off-by: Varka Bhadram Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann Signed-off-by: Ben Hutchings

mac802154: Keep track of the channel when changed

2013-04-08T16:09:18+00:00

Two sections checked whether the current channel != the new channel without ever setting the current channel variables. 1. net/mac802154/tx.c: Prevent set_channel() from getting called every time a packet is sent. 2. net/mac802154/mib.c: Lock (pib_lock) accesses to current_channel and current_page and make sure they are updated when the channel has been changed. Signed-off-by: Alan Ott Signed-off-by: David S. Miller

mac802154: Use netif flow control

2013-04-07T21:06:43+00:00

Use netif_stop_queue() and netif_wake_queue() to control the flow of packets to mac802154 devices. Since many IEEE 802.15.4 devices have no output buffer, and since the mac802154 xmit() function is designed to block, netif_stop_queue() is called after each packet. Signed-off-by: Alan Ott Signed-off-by: David S. Miller

mac802154: Do not try to resend failed packets

2013-04-07T21:06:43+00:00

When ops->xmit() fails, drop the packet. Devices which support hardware ack and retry (which include all devices currently supported by mainline), will automatically retry sending the packet (in the hardware) up to 3 times, per the 802.15.4 spec. There is no need, and it is incorrect to try to do it in mac802154. Signed-off-by: Alan Ott Signed-off-by: David S. Miller

mac802154: use kfree_skb() instead of dev_kfree_skb()

2012-11-30T17:19:24+00:00

kfree_skb() indicates failure, which is where this is being used. Signed-off-by: Alan Ott Signed-off-by: David S. Miller

mac802154: fix memory leaks

2012-11-30T17:19:24+00:00

kfree_skb() was not getting called in the case of some failures. This was pointed out by Eric Dumazet. Signed-off-by: Alan Ott Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2012-06-29T00:37:00+00:00

Conflicts: drivers/net/caif/caif_hsi.c drivers/net/usb/qmi_wwan.c The qmi_wwan merge was trivial. The caif_hsi.c, on the other hand, was not. It's a conflict between 1c385f1fdf6f9c66d982802cd74349c040980b50 ("caif-hsi: Replace platform device with ops structure.") in the net-next tree and commit 39abbaef19cd0a30be93794aa4773c779c3eb1f3 ("caif-hsi: Postpone init of HIS until open()") in the net tree. I did my best with that one and will ask Sjur to check it out. Signed-off-by: David S. Miller