- 11 5月, 2010 7 次提交
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由 Patrick McHardy 提交于
Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Patrick McHardy 提交于
Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Patrick McHardy 提交于
Now that cache entries in unres_queue don't need to be distinguished by their network namespace pointer anymore, we can remove it from struct mfc6_cache add pass the namespace as function argument to the functions that need it. Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Patrick McHardy 提交于
The unres_queue is currently shared between all namespaces. Following patches will additionally allow to create multiple multicast routing tables in each namespace. Having a single shared queue for all these users seems to excessive, move the queue and the cleanup timer to the per-namespace data to unshare it. As a side-effect, this fixes a bug in the seq file iteration functions: the first entry returned is always from the current namespace, entries returned after that may belong to any namespace. Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Patrick McHardy 提交于
Restore the rcu_dereference() calls in conntrack/expectation notifier and logger registration/unregistration, but use the _protected variant, which will be required by the upcoming __rcu annotations. Based on patch by Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Patrick McHardy 提交于
Conflicts: net/bridge/br_device.c net/bridge/br_forward.c Signed-off-by: NPatrick McHardy <kaber@trash.net>
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- 10 5月, 2010 33 次提交
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由 Patrick McHardy 提交于
=================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- include/net/netfilter/nf_conntrack_l3proto.h:92 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 2 locks held by iptables/3197: #0: (sk_lock-AF_INET){+.+.+.}, at: [<ffffffff8149bd8c>] ip_setsockopt+0x7c/0xa0 #1: (&xt[i].mutex){+.+.+.}, at: [<ffffffff8148a5fe>] xt_find_table_lock+0x3e/0x110 stack backtrace: Pid: 3197, comm: iptables Not tainted 2.6.34-rc4 #2 Call Trace: [<ffffffff8105e2e8>] lockdep_rcu_dereference+0xb8/0xc0 [<ffffffff8147fb3b>] nf_ct_l3proto_module_put+0x6b/0x70 [<ffffffff8148d891>] state_mt_destroy+0x11/0x20 [<ffffffff814d3baf>] cleanup_match+0x2f/0x50 [<ffffffff814d3c63>] cleanup_entry+0x33/0x90 [<ffffffff814d5653>] ? __do_replace+0x1a3/0x210 [<ffffffff814d564c>] __do_replace+0x19c/0x210 [<ffffffff814d651a>] do_ipt_set_ctl+0x16a/0x1b0 [<ffffffff8147a610>] nf_sockopt+0x60/0xa0 ... The __nf_ct_l3proto_find() call doesn't actually need rcu read side protection since the caller holds a reference to the protocol. Use rcu_read_lock() anyways to avoid the warning. Kernel bugzilla #15781: https://bugzilla.kernel.org/show_bug.cgi?id=15781Reported-by: NChristian Casteyde <casteyde.christian@free.fr> Signed-off-by: NPatrick McHardy <kaber@trash.net>
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由 Eric Dumazet 提交于
Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Marcel Holtmann 提交于
There were some left-overs that used sk->sk_sleep instead of the new sk_sleep() helper. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Tomas Winkler 提交于
Use strict_strtoul as suggested by checkpatch.pl for more strict input checking. Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Bing Zhao 提交于
Get the device type from MODULE_BRINGUP_REQ command response. Signed-off-by: NBing Zhao <bzhao@marvell.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Bing Zhao 提交于
Move btmrvl hdev registration code out of btmrvl_add_card(). New function btmrvl_register_hdev() is added. Signed-off-by: NBing Zhao <bzhao@marvell.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Bing Zhao 提交于
The MODULE_BRINGUP_REQ command response returns success with either 0x00 or 0x0c. Signed-off-by: NBing Zhao <bzhao@marvell.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Dan Carpenter 提交于
This is mostly cleanup. There is only one caller and it just checks for non-zero return values. Still "ret" should be int because we want to return -EINVAL on errors. Signed-off-by: NDan Carpenter <error27@gmail.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Marcel Holtmann 提交于
Instead of having a global workqueue for all controllers, it makes more sense to have a workqueue per controller. Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
On the receipt of an RR(P=1) under RemoteBusy set to TRUE(on the RECV state table) we have to call sendIorRRorRNR(F=1) and just after set RemoteBusy to False. This leads to a freeze in the sending process since it's not allowed send data with RemoteBusy set to true and no one call SendPending-I-Frames after set RemoteBusy to false(The last action for that event). Actually sendIorRRorRNR() calls SendPending-I-Frames but at that moment RemoteBusy is still True and we cannot send any frame, after, no one calls SendPending-I-Frames again and the sending process stops. The solution here is to set RemoteBusy to false inside SendPending-I-Frames just before call SendPending-I-Frames. That will make SendPending-I-Frames able to send frames. This solution is similar to what RR(P=0)(F=0) on the RECV table and RR(P=1) on the SREJ_SENT table do. Actually doesn't make any sense call SendPending-I-Frames if we can send any frame, i. e., RemoteBusy is True. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
The checks should be done before the the memcpy to avoid buffer overflow. Reported-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
l2cap_ertm_send() can be called both from user context and bottom half context. The socket locks for that contexts are different, the user context uses a mutex(which can sleep) and the second one uses a spinlock_bh. That creates a race condition when we have interruptions on both contexts at the same time. The better way to solve this is to add a new spinlock to lock l2cap_ertm_send() and the vars it access. The other solution was to defer l2cap_ertm_send() with a workqueue, but we the sending process already has one defer on the hci layer. It's not a good idea add another one. The patch refactor the code to create l2cap_retransmit_frames(), then we encapulate the lock of l2cap_ertm_send() for some call. It also changes l2cap_retransmit_frame() to l2cap_retransmit_one_frame() to avoid confusion Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
To guarantee that all packets we sent were received we need to wait for theirs ack before shutdown the socket. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
Supports Local Busy condition handling through a waitqueue that wake ups each 200ms and try to push the packets to the upper layer. If it can push all the queue then it leaves the Local Busy state. The patch modifies the behaviour of l2cap_ertm_reassembly_sdu() to support retry of the push operation. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 João Paulo Rechi Vita 提交于
Add checks for invalid tx_seq and fixes the duplicated tx_seq check. Signed-off-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Acked-by: NGustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
There is a plenty of situation where ERTM shall close the channel, this commit treats the cases regarding Invalid Frame Detection. It create one reassembly SDU function for ERTM and other for Streaming Mode to make the Invalid Frame Detection handling less complex. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
Make the code flow cleaner and changes the function to void. It also fixes a potential NULL dereference with skb. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
hci_send_acl can't fail, so we can make it void. This patch changes that and all the funcions that use hci_send_acl(). That change exposed a bug on sending connectionless data. We were not reporting the lenght send back to the user space. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
A spin_lock_init() call was missing. :) Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
F-bit set should be processed only if we are in the WAIT_F state. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
Trivial clean up. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
That action is not specified by the ERTM spec, so removing it. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
We can set the SAR bits in the control field directly. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 João Paulo Rechi Vita 提交于
Signed-off-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Acked-by: NGustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
The code was reusing the control var without its reinitialization. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 João Paulo Rechi Vita 提交于
Add this check to getsockopt makes possible to fail early instead of waiting until listen / connect. Signed-off-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Acked-by: NGustavo F. Padovan <padovan@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
if enable_ertm is true and we have SOCK_STREAM the default mode will be ERTM, otherwise Basic Mode. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
The L2CAP Extended Features are still unstable and under development, so we are adding them under the EXPERIMENTAL flag to get more feedback on them. L2CAP Extended Features includes the Enhanced Retransmission and Streaming Modes, Frame Check Sequence (FCS), and Segmentation and Reassemby (SAR). Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
When the I-frame received is the expected, i.e., its tx_seq is equal to expected_tx_seq and we are under a SREJ, we can just add it to the tail of the list. Doing that we change the complexity from O(n) to O(1). Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
l2cap_drop_acked_frames() was droping not sent packets, causing them to be not transmitted. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
The code was crashing due to a invalid access to hci_conn after the channel disconnect. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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由 Gustavo F. Padovan 提交于
If there is no frames to retransmit l2cap was crashing the kernel, now we check if the queue is empty first. Signed-off-by: NGustavo F. Padovan <padovan@profusion.mobi> Reviewed-by: NJoão Paulo Rechi Vita <jprvita@profusion.mobi> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>
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