- 11 Dec, 2013 26 commits
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Tony Lindgren authored
Commit 89ce376c (drivers/net: Use of_match_ptr() macro in smc91x.c) added minimal device tree support to smc91x, but it's not working on many platforms because of the lack of some key configuration bits. Fix the issue by parsing the necessary configuration like the smc911x driver is doing. As most smc91x users seem to use 16-bit access, let's default to that if no reg-io-width is specified. Cc: Nicolas Pitre <nico@fluxnic.net> Cc: Mark Rutland <mark.rutland@arm.com> Cc: netdev@vger.kernel.org Cc: devicetree@vger.kernel.org Acked-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
pskb_may_pull() can reallocate skb->head, we need to move the initialization of iph and uh pointers after its call. Fixes: 421b3885 ("udp: ipv4: Add udp early demux") Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: Shawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by:
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Jason Wang authored
macvtap_put_user() never return a value grater than iov length, this in fact bypasses the truncated checking in macvtap_recvmsg(). Fix this by always returning the size of packet plus the possible vlan header to let the trunca checking work. Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
Jason Wang <jasowang@redhat.com> Acked-by:
Vlad Yasevich <vyasevich@gmail.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Jason Wang authored
Commit 6680ec68 (tuntap: hardware vlan tx support) breaks the truncated packet signal by nev return a length greater than iov length in tun_put_user(). This patch fixes by always return the length of packet plus possible vlan header. Caller can detect the truncated packet by comparing the return value and the size of io length. Cc: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Yang Yingliang authored
Now, 32bit rates may be not the true rate. So use rate_bytes_ps which is from max(rate32, rate64) to calcualte quantum. Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Acked-by:
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Yang Yingliang authored
Current max_size is caluated from rate table. Now, the rate table has been replaced and it's wrong to caculate max_size based on this rate table. It can lead wrong calculation of max_size. The burst in kernel may be lower than user asked, because burst may gets some loss when transform it to buffer(E.g. "burst 40kb rate 30mbit/s") and it seems we cannot avoid this loss. Burst's value(max_size) based on rate table may be equal user asked. If a packet's length is max_size, this packet will be stalled in tbf_dequeue() because its length is above the burst in kernel so that it cannot get enough tokens. The max_size guards against enqueuing packet sizes above q->buffer "time" in tbf_enqueue(). To make consistent with the calculation of tokens, this patch add a helper psched_ns_t2l() to calculate burst(max_size) directly to fix this problem. After this fix, we can support to using 64bit rates to calculate burst as well. Signed-off-by:
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Sergei Shtylyov authored
Renesas R-Car development boards use KSZ8041RNLI PHY which for some reason has ID of 0x00221537 that is not documented for KSZ8041-family PHYs and does not match the documented ID of 0x0022151x (where 'x' is the revision). We have to add the new #define PHY_ID_* and new ksphy_driver[] entry, almost the same as KSZ8041 one, differing only in the 'phy_id' and 'name' fields. Signed-off-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Tested-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirelessDavid S. Miller authored
John W. Linville says: ==================== Just one patch this time -- a fix from Felix Fietkau to fix the duration calculation for non-aggregated packets in ath9k. This is a small change and it is obviously specific to ath9k. Please let me know if there are problems! ==================== Signed-off-by: -
John W. Linville authored
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
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Eric Dumazet authored
Dave Jones reported a use after free in UDP stack : [ 5059.434216] ========================= [ 5059.434314] [ BUG: held lock freed! ] [ 5059.434420] 3.13.0-rc3+ #9 Not tainted [ 5059.434520] ------------------------- [ 5059.434620] named/863 is freeing memory ffff88005e960000-ffff88005e96061f, with a lock still held there! [ 5059.434815] (slock-AF_INET){+.-...}, at: [<ffffffff8149bd21>] udp_queue_rcv_skb+0xd1/0x4b0 [ 5059.435012] 3 locks held by named/863: [ 5059.435086] #0: (rcu_read_lock){.+.+..}, at: [<ffffffff8143054d>] __netif_receive_skb_core+0x11d/0x940 [ 5059.435295] #1: (rcu_read_lock){.+.+..}, at: [<ffffffff81467a5e>] ip_local_deliver_finish+0x3e/0x410 [ 5059.435500] #2: (slock-AF_INET){+.-...}, at: [<ffffffff8149bd21>] udp_queue_rcv_skb+0xd1/0x4b0 [ 5059.435734] stack backtrace: [ 5059.435858] CPU: 0 PID: 863 Comm: named Not tainted 3.13.0-rc3+ #9 [loadavg: 0.21 0.06 0.06 1/115 1365] [ 5059.436052] Hardware name: /D510MO, BIOS MOPNV10J.86A.0175.2010.0308.0620 03/08/2010 [ 5059.436223] 0000000000000002 ffff88007e203ad8 ffffffff8153a372 ffff8800677130e0 [ 5059.436390] ffff88007e203b10 ffffffff8108cafa ffff88005e960000 ffff88007b00cfc0 [ 5059.436554] ffffea00017a5800 ffffffff8141c490 0000000000000246 ffff88007e203b48 [ 5059.436718] Call Trace: [ 5059.436769] <IRQ> [<ffffffff8153a372>] dump_stack+0x4d/0x66 [ 5059.436904] [<ffffffff8108cafa>] debug_check_no_locks_freed+0x15a/0x160 [ 5059.437037] [<ffffffff8141c490>] ? __sk_free+0x110/0x230 [ 5059.437147] [<ffffffff8112da2a>] kmem_cache_free+0x6a/0x150 [ 5059.437260] [<ffffffff8141c490>] __sk_free+0x110/0x230 [ 5059.437364] [<ffffffff8141c5c9>] sk_free+0x19/0x20 [ 5059.437463] [<ffffffff8141cb25>] sock_edemux+0x25/0x40 [ 5059.437567] [<ffffffff8141c181>] sock_queue_rcv_skb+0x81/0x280 [ 5059.437685] [<ffffffff8149bd21>] ? udp_queue_rcv_skb+0xd1/0x4b0 [ 5059.437805] [<ffffffff81499c82>] __udp_queue_rcv_skb+0x42/0x240 [ 5059.437925] [<ffffffff81541d25>] ? _raw_spin_lock+0x65/0x70 [ 5059.438038] [<ffffffff8149bebb>] udp_queue_rcv_skb+0x26b/0x4b0 [ 5059.438155] [<ffffffff8149c712>] __udp4_lib_rcv+0x152/0xb00 [ 5059.438269] [<ffffffff8149d7f5>] udp_rcv+0x15/0x20 [ 5059.438367] [<ffffffff81467b2f>] ip_local_deliver_finish+0x10f/0x410 [ 5059.438492] [<ffffffff81467a5e>] ? ip_local_deliver_finish+0x3e/0x410 [ 5059.438621] [<ffffffff81468653>] ip_local_deliver+0x43/0x80 [ 5059.438733] [<ffffffff81467f70>] ip_rcv_finish+0x140/0x5a0 [ 5059.438843] [<ffffffff81468926>] ip_rcv+0x296/0x3f0 [ 5059.438945] [<ffffffff81430b72>] __netif_receive_skb_core+0x742/0x940 [ 5059.439074] [<ffffffff8143054d>] ? __netif_receive_skb_core+0x11d/0x940 [ 5059.442231] [<ffffffff8108c81d>] ? trace_hardirqs_on+0xd/0x10 [ 5059.442231] [<ffffffff81430d83>] __netif_receive_skb+0x13/0x60 [ 5059.442231] [<ffffffff81431c1e>] netif_receive_skb+0x1e/0x1f0 [ 5059.442231] [<ffffffff814334e0>] napi_gro_receive+0x70/0xa0 [ 5059.442231] [<ffffffffa01de426>] rtl8169_poll+0x166/0x700 [r8169] [ 5059.442231] [<ffffffff81432bc9>] net_rx_action+0x129/0x1e0 [ 5059.442231] [<ffffffff810478cd>] __do_softirq+0xed/0x240 [ 5059.442231] [<ffffffff81047e25>] irq_exit+0x125/0x140 [ 5059.442231] [<ffffffff81004241>] do_IRQ+0x51/0xc0 [ 5059.442231] [<ffffffff81542bef>] common_interrupt+0x6f/0x6f We need to keep a reference on the socket, by using skb_steal_sock() at the right place. Note that another patch is needed to fix a race in udp_sk_rx_dst_set(), as we hold no lock protecting the dst. Fixes: 421b3885 ("udp: ipv4: Add udp early demux") Reported-by:Dave Jones <davej@redhat.com> Signed-off-by:
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David S. Miller authored
Wang Weidong says: ==================== sctp: check the rto_min and rto_max v6 -> v7: -patch2: fix the whitespace issues which pointed out by Daniel v5 -> v6: split the v5' first patch to patch1 and patch2, and remove the macro in constants.h -patch1: do rto_min/max socket option handling in its own patch, and fix the check of rto_min/max. -patch2: do rto_min/max sysctl handling in its own patch. -patch3: add Suggested-by Daniel. v4 -> v5: - patch1: add marco in constants.h and fix up spacing as suggested by Daniel - patch2: add a patch for fix up do_hmac_alg for according to do_rto_min[max] v3 -> v4: -patch1: fix use init_net directly which suggested by Vlad. v2 -> v3: -patch1: add proc_handler for check rto_min and rto_max which suggested by Vlad v1 -> v2: -patch1: fix the From Name which pointed out by David, and add the ACK by Neil ==================== Signed-off-by: -
wangweidong authored
fix up spacing of proc_sctp_do_hmac_alg for according to the proc_sctp_do_rto_min[max] in sysctl.c Suggested-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
Wang Weidong <wangweidong1@huawei.com> Acked-by:
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wangweidong authored
rto_min should be smaller than rto_max while rto_max should be larger than rto_min. Add two proc_handler for the checking. Suggested-by:
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wangweidong authored
When we set 0 to rto_min or rto_max, just not change the value. Also we should check the rto_min > rto_max. Suggested-by:
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Florent Fourcot authored
This patch is following b579035f "ipv6: remove old conditions on flow label sharing" Since there is no reason to restrict a label to a destination, we should not erase the destination value of a socket with the value contained in the flow label storage. This patch allows to really have the same flow label to more than one destination. Signed-off-by:
Florent Fourcot <florent.fourcot@enst-bretagne.fr> Reviewed-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
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Neil Horman authored
Currently, sctp associations latch a sockets autoclose value to an association at association init time, subject to capping constraints from the max_autoclose sysctl value. This leads to an odd situation where an application may set a socket level autoclose timeout, but sliently sctp will limit the autoclose timeout to something less than that. Fix this by modifying the autoclose setsockopt function to check the limit, cap it and warn the user via syslog that the timeout is capped. This will allow getsockopt to return valid autoclose timeout values that reflect what subsequent associations actually use. While were at it, also elimintate the assoc->autoclose variable, it duplicates whats in the timeout array, which leads to multiple sources for the same information, that may differ (as the former isn't subject to any capping). This gives us the timeout information in a canonical place and saves some space in the association structure as well. Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> Acked-by:
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David S. Miller authored
Jon Maloy says: ==================== tipc: corrections related to tasklet job mechanism These commits correct two bugs related to tipc' service for launching functions for asynchronous execution in a separate tasklet. ==================== Signed-off-by: -
Ying Xue authored
'handler_enabled' is a global flag indicating whether the TIPC signal handling service is enabled or not. The lack of lock protection for this flag incurs a risk for contention, so that a tipc_k_signal() call might queue a signal handler to a destroyed signal queue, with unpredictable results. To correct this, we let the already existing 'qitem_lock' protect the flag, as it already does with the queue itself. This way, we ensure that the flag always is consistent across all cores. Signed-off-by:
Ying Xue <ying.xue@windriver.com> Reviewed-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
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Jon Paul Maloy authored
The 'signal handler' service in TIPC is a mechanism that makes it possible to postpone execution of functions, by launcing them into a job queue for execution in a separate tasklet, independent of the launching execution thread. When we do rmmod on the tipc module, this service is stopped after the network service. At the same time, the stopping of the network service may itself launch jobs for execution, with the risk that these functions may be scheduled for execution after the data structures meant to be accessed by the job have already been deleted. We have seen this happen, most often resulting in an oops. This commit ensures that the signal handler is the very first to be stopped when TIPC is shut down, so there are no surprises during the cleanup of the other services. Signed-off-by:
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Nat Gurumoorthy authored
The new tg3 driver leaves REG_BASE_ADDR (PCI config offset 120) uninitialized. From power on reset this register may have garbage in it. The Register Base Address register defines the device local address of a register. The data pointed to by this location is read or written using the Register Data register (PCI config offset 128). When REG_BASE_ADDR has garbage any read or write of Register Data Register (PCI 128) will cause the PCI bus to lock up. The TCO watchdog will fire and bring down the system. Signed-off-by:
Nat Gurumoorthy <natg@google.com> Acked-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
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David S. Miller authored
Jason Wang and Michael S. Tsirkin are still discussing how to properly fix this. Signed-off-by: -
Jason Wang authored
macvtap_put_user() never return a value grater than iov length, this in fact bypasses the truncated checking in macvtap_recvmsg(). Fix this by always returning the size of packet plus the possible vlan header to let the truncated checking work. Cc: Vlad Yasevich <vyasevich@gmail.com> Cc: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Signed-off-by:
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Jason Wang authored
Commit 6680ec68 (tuntap: hardware vlan tx support) breaks the truncated packet signal by never return a length greater than iov length in tun_put_user(). This patch fixes this by always return the length of packet plus possible vlan header. Caller can detect the truncated packet by comparing the return value and the size of iov length. Reported-by:
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Fan Du authored
Otherwise causing dst memory leakage. Have Checked all other type tunnel device transmit implementation, no such things happens anymore. Signed-off-by:
Fan Du <fan.du@windriver.com> Acked-by:
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Sasha Levin authored
unix_dgram_recvmsg() will hold the readlock of the socket until recv is complete. In the same time, we may try to setsockopt(SO_PEEK_OFF) which will hang until unix_dgram_recvmsg() will complete (which can take a while) without allowing us to break out of it, triggering a hung task spew. Instead, allow set_peek_off to fail, this way userspace will not hang. Signed-off-by:
Sasha Levin <sasha.levin@oracle.com> Acked-by:
Pavel Emelyanov <xemul@parallels.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfcDavid S. Miller authored
Ben Hutchings says: ==================== Several fixes for the PTP hardware support added in 3.7: 1. Fix filtering of PTP packets on the TX path to be robust against bad header lengths. 2. Limit logging on the RX path in case of a PTP packet flood, partly from Laurence Evans. 3. Disable PTP hardware when the interface is down so that we don't receive RX timestamp events, from Alexandre Rames. 4. Maintain clock frequency adjustment when a time offset is applied. Also fixes for the SFC9100 family support added in 3.12: 5. Take the RX prefix length into account when applying NET_IP_ALIGN, from Andrew Rybchenko. 6. Work around a bug that breaks communication between the driver and firmware, from Robert Stonehouse. Please also queue these up for the appropriate stable branches. ==================== Signed-off-by:
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- 10 Dec, 2013 8 commits
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Maxime Ripard authored
The sun4i-emac driver uses devm_request_irq at .ndo_open time, but relies on the managed device mechanism to actually free it. This causes an issue whenever someone wants to restart the interface, the interrupt still being held, and not yet released. Fall back to using the regular request_irq at .ndo_open time, and introduce a free_irq during .ndo_stop. Signed-off-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Cc: stable@vger.kernel.org # 3.11+ Signed-off-by:
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Stefan Tomanek authored
This changes ensures that the routing entry investigated by the suppress function actually does point to a device struct before following that pointer, fixing a possible kernel oops situation when verifying the interface group associated with a routing table entry. According to Daniel Golle, this Oops can be triggered by a user process trying to establish an outgoing IPv6 connection while having no real IPv6 connectivity set up (only autoassigned link-local addresses). Fixes: 6ef94cfa ("fib_rules: add route suppression based on ifgroup") Reported-by:
Daniel Golle <daniel.golle@gmail.com> Tested-by:
Stefan Tomanek <stefan.tomanek@wertarbyte.de> Signed-off-by:
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Changli Gao authored
maxattr in genl_family should be used to save the max attribute type, but not the max command type. Drop monitor doesn't support any attributes, so we should leave it as zero. Signed-off-by: -
Srikanth Thokala authored
This patch adds barriers at appropriate places to ensure the driver works on Xilinx Zynq ARM-based SoC platform. Signed-off-by:
Srikanth Thokala <sthokal@xilinx.com> Signed-off-by:
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Srikanth Thokala authored
There are no specific interrupts for the PONG buffer on both transmit and receive side, same interrupt is valid for both buffers. So, this patch removes this code. Signed-off-by:
Michal Simek <monstr@monstr.eu> Signed-off-by:
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Hannes Frederic Sowa authored
Brett Ciphery reported that new ipv6 addresses failed to get installed because the addrconf generated dsts where counted against the dst gc limit. We don't need to count those routes like we currently don't count administratively added routes. Because the max_addresses check enforces a limit on unbounded address generation first in case someone plays with router advertisments, we are still safe here. Reported-by:
Brett Ciphery <brett.ciphery@windriver.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller authored
Pablo Neira Ayuso says: ==================== The following patchset contains three Netfilter fixes for your net tree, they are: * fix incorrect comparison in the new netnet hash ipset type, from Dave Jones. * fix splat in hashlimit due to missing removal of the content of its proc entry in netnamespaces, from Sergey Popovich. * fix missing rule flushing operation by table in nf_tables. Table flushing was already discussed back in October but this got lost and no patch has hit the tree to address this issue so far, from me. ==================== Signed-off-by: -
Daniel Borkmann authored
Commit e40526cb introduced a cached dev pointer, that gets hooked into register_prot_hook(), __unregister_prot_hook() to update the device used for the send path. We need to fix this up, as otherwise this will not work with sockets created with protocol = 0, plus with sll_protocol = 0 passed via sockaddr_ll when doing the bind. So instead, assign the pointer directly. The compiler can inline these helper functions automagically. While at it, also assume the cached dev fast-path as likely(), and document this variant of socket creation as it seems it is not widely used (seems not even the author of TX_RING was aware of that in his reference example [1]). Tested with reproducer from e40526cb. [1] http://wiki.ipxwarzone.com/index.php5?title=Linux_packet_mmap#Example Fixes: e40526cb ("packet: fix use after free race in send path when dev is released") Signed-off-by:
Salam Noureddine <noureddine@aristanetworks.com> Tested-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
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- 09 Dec, 2013 1 commit
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Felix Fietkau authored
When not aggregating packets, fi->framelen should be passed in as length to calculate the duration. Before the tx path rework, ath_tx_fill_desc was called for either one aggregate, or one single frame, with the length of the packet or the aggregate as a parameter. After the rework, ath_tx_sched_aggr can pass a burst of single frames to ath_tx_fill_desc and sets len=0. Fix broken duration calculation by overriding the length in ath_tx_fill_desc before passing it to ath_buf_set_rate. Cc: stable@vger.kernel.org Reported-by:
Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by:
Felix Fietkau <nbd@openwrt.org> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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- 07 Dec, 2013 2 commits
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Pablo Neira Ayuso authored
This patch allows you to atomically remove all rules stored in a table via the NFT_MSG_DELRULE command. You only need to indicate the specific table and no chain to flush all rules stored in that table. Signed-off-by:Pablo Neira Ayuso <pablo@netfilter.org>
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Sergey Popovich authored
In (32263dd1 netfilter: xt_hashlimit: fix namespace destroy path) the hashlimit_net_exit() function is always called right before hashlimit_mt_destroy() to release netns data. If you use xt_hashlimit with IPv4 and IPv6 together, this produces the following splat via netconsole in the netns destroy path: Pid: 9499, comm: kworker/u:0 Tainted: G WC O 3.2.0-5-netctl-amd64-core2 Call Trace: [<ffffffff8104708d>] ? warn_slowpath_common+0x78/0x8c [<ffffffff81047139>] ? warn_slowpath_fmt+0x45/0x4a [<ffffffff81144a99>] ? remove_proc_entry+0xd8/0x22e [<ffffffff810ebbaa>] ? kfree+0x5b/0x6c [<ffffffffa043c501>] ? hashlimit_net_exit+0x45/0x8d [xt_hashlimit] [<ffffffff8128ab30>] ? ops_exit_list+0x1c/0x44 [<ffffffff8128b28e>] ? cleanup_net+0xf1/0x180 [<ffffffff810369fc>] ? should_resched+0x5/0x23 [<ffffffff8105b8f9>] ? process_one_work+0x161/0x269 [<ffffffff8105aea5>] ? cwq_activate_delayed_work+0x3c/0x48 [<ffffffff8105c8c2>] ? worker_thread+0xc2/0x145 [<ffffffff8105c800>] ? manage_workers.isra.25+0x15b/0x15b [<ffffffff8105fa01>] ? kthread+0x76/0x7e [<ffffffff813581f4>] ? kernel_thread_helper+0x4/0x10 [<ffffffff8105f98b>] ? kthread_worker_fn+0x139/0x139 [<ffffffff813581f0>] ? gs_change+0x13/0x13 ---[ end trace d8c3cc0ad163ef79 ]--- ------------[ cut here ]------------ WARNING: at /usr/src/linux-3.2.52/debian/build/source_netctl/fs/proc/generic.c:849 remove_proc_entry+0x217/0x22e() Hardware name: remove_proc_entry: removing non-empty directory 'net/ip6t_hashlimit', leaking at least 'IN-REJECT' This is due to lack of removal net/ip6t_hashlimit/* entries in hashlimit_proc_net_exit(), since only IPv4 entries are deleted. Fix it by always removing the IPv4 and IPv6 entries and their parent directories in the netns destroy path. Signed-off-by:
Sergey Popovich <popovich_sergei@mail.ru> Signed-off-by:
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- 06 Dec, 2013 3 commits
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Robert Stonehouse authored
There is an as-yet unexplained bug that sometimes prevents (or delays) the driver seeing the completion event for a completed MCDI request on the SFC9120. The requested configuration change will have happened but the driver assumes it to have failed, and this can result in further failures. We can mitigate this by polling for completion after unsuccessfully waiting for an event. Fixes: 8127d661 ('sfc: Add support for Solarflare SFC9100 family') Signed-off-by:
Ben Hutchings <bhutchings@solarflare.com>
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Robert Stonehouse authored
Signed-off-by: -
Andrew Rybchenko authored
rx_prefix_size is 4-bytes aligned on Falcon/Siena (16 bytes), but it is equal to 14 on EF10. So, it should be taken into account if arch requires IP header to be 4-bytes aligned (via NET_IP_ALIGN). Fixes: 8127d661 ('sfc: Add support for Solarflare SFC9100 family') Signed-off-by:
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