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2012-12-17atm: use scnprintf() instead of sprintf()chas williams - CONTRACTOR
As reported by Chen Gang <gang.chen@asianux.com>, we should ensure there is enough space when formatting the sysfs buffers. Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-02pppoatm: optimise PPP channel wakeups after sock_owned_by_user()David Woodhouse
We don't need to schedule the wakeup tasklet on *every* unlock; only if we actually blocked the channel in the first place. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>
2012-12-02br2684: allow assign only on a connected socketKrzysztof Mazur
The br2684 does not check if used vcc is in connected state, causing potential Oops in pppoatm_send() when vcc->send() is called on not fully connected socket. Now br2684 can be assigned only on connected sockets; otherwise -EINVAL error is returned. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-12-02br2684: fix module_put() raceDavid Woodhouse
The br2684 code used module_put() during unassignment from vcc with hope that we have BKL. This assumption is no longer true. Now owner field in atmvcc is used to move this module_put() to vcc_destroy_socket(). Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>
2012-12-02pppoatm: fix missing wakeup in pppoatm_send()David Woodhouse
Now that we can return zero from pppoatm_send() for reasons *other* than the queue being full, that means we can't depend on a subsequent call to pppoatm_pop() waking the queue, and we might leave it stalled indefinitely. Use the ->release_cb() callback to wake the queue after the sock is unlocked. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>
2012-12-02br2684: don't send frames on not-ready vccDavid Woodhouse
Avoid submitting packets to a vcc which is being closed. Things go badly wrong when the ->pop method gets later called after everything's been torn down. Use the ATM socket lock for synchronisation with vcc_destroy_socket(), which clears the ATM_VF_READY bit under the same lock. Otherwise, we could end up submitting a packet to the device driver even after its ->ops->close method has been called. And it could call the vcc's ->pop method after the protocol has been shut down. Which leads to a panic. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>
2012-12-02atm: add release_cb() callback to vccDavid Woodhouse
The immediate use case for this is that it will allow us to ensure that a pppoatm queue is woken after it has to drop a packet due to the sock being locked. Note that 'release_cb' is called when the socket is *unlocked*. This is not to be confused with vcc_release() — which probably ought to be called vcc_close(). Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>
2012-11-30pppoatm: do not inline pppoatm_may_send()Krzysztof Mazur
The pppoatm_may_send() is quite heavy and it's called three times in pppoatm_send() and inlining costs more than 200 bytes of code (more than 10% of total pppoatm driver code size). add/remove: 1/0 grow/shrink: 0/1 up/down: 132/-367 (-235) function old new delta pppoatm_may_send - 132 +132 pppoatm_send 900 533 -367 Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-11-30pppoatm: drop frames to not-ready vccKrzysztof Mazur
The vcc_destroy_socket() closes vcc before the protocol is detached from vcc by calling vcc->push() with NULL skb. This leaves some time window, where the protocol may call vcc->send() on closed vcc and crash. Now pppoatm_send(), like vcc_sendmsg(), checks for vcc flags that indicate that vcc is not ready. If the vcc is not ready we just drop frame. Queueing frames is much more complicated because we don't have callbacks that inform us about vcc flags changes. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-11-28pppoatm: take ATM socket lock in pppoatm_send()Krzysztof Mazur
The pppoatm_send() does not take any lock that will prevent concurrent vcc_sendmsg(). This causes two problems: - there is no locking between checking the send queue size with atm_may_send() and incrementing sk_wmem_alloc, and the real queue size can be a little higher than sk_sndbuf - the vcc->sendmsg() can be called concurrently. I'm not sure if it's allowed. Some drivers (eni, nicstar, ...) seem to assume it will never happen. Now pppoatm_send() takes ATM socket lock, the same that is used in vcc_sendmsg() and other ATM socket functions. The pppoatm_send() is called with BH disabled, so bh_lock_sock() is used instead of lock_sock(). Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Cc: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-11-28pppoatm: fix module_put() raceKrzysztof Mazur
The pppoatm used module_put() during unassignment from vcc with hope that we have BKL. This assumption is no longer true. Now owner field in atmvcc is used to move this module_put() to vcc_destroy_socket(). Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-11-28pppoatm: allow assign only on a connected socketKrzysztof Mazur
The pppoatm does not check if used vcc is in connected state, causing an Oops in pppoatm_send() when vcc->send() is called on not fully connected socket. Now pppoatm can be assigned only on connected sockets; otherwise -EINVAL error is returned. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Cc: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-11-28atm: add owner of push() callback to atmvccKrzysztof Mazur
The atm is using atmvcc->push(vcc, NULL) callback to notify protocol that vcc will be closed and protocol must detach from it. This callback is usually used by protocol to decrement module usage count by module_put(), but it leaves small window then module is still used after module_put(). Now the owner of push() callback is kept in atmvcc and module_put(atmvcc->owner) is called after the protocol is detached from vcc. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Acked-by: Chas Williams <chas@cmf.nrl.navy.mil>
2012-11-26atm: br2684: Fix excessive queue bloatDavid Woodhouse
There's really no excuse for an additional wmem_default of buffering between the netdev queue and the ATM device. Two packets (one in-flight, and one ready to send) ought to be fine. It's not as if it should take long to get another from the netdev queue when we need it. If necessary we can make the queue space configurable later, but I don't think it's likely to be necessary. cf. commit 9d02daf754238adac48fa075ee79e7edd3d79ed3 (pppoatm: Fix excessive queue bloat) which did something very similar for PPPoATM. Note that there is a tremendously unlikely race condition which may result in qspace temporarily going negative. If a CPU running the br2684_pop() function goes off into the weeds for a long period of time after incrementing qspace to 1, but before calling netdev_wake_queue()... and another CPU ends up calling br2684_start_xmit() and *stopping* the queue again before the first CPU comes back, the netdev queue could end up being woken when qspace has already reached zero. An alternative approach to coping with this race would be to check in br2684_start_xmit() for qspace==0 and return NETDEV_TX_BUSY, but just using '> 0' and '< 1' for comparison instead of '== 0' and '!= 0' is simpler. It just warranted a mention of *why* we do it that way... Move the call to atmvcc->send() to happen *after* the accounting and potentially stopping the netdev queue, in br2684_xmit_vcc(). This matters if the ->send() call suffers an immediate failure, because it'll call br2684_pop() with the offending skb before returning. We want that to happen *after* we've done the initial accounting for the packet in question. Also make it return an appropriate success/failure indication while we're at it. Tested by running 'ping -l 1000 bottomless.aaisp.net.uk' from within my network, with only a single PPPoE-over-BR2684 link running. And after setting txqueuelen on the nas0 interface to something low (5, in fact). Before the patch, we'd see about 15 packets being queued and a resulting latency of ~56ms being reached. After the patch, we see only about 8, which is fairly much what we expect. And a max latency of ~36ms. On this OpenWRT box, wmem_default is 163840. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Reviewed-by: Krzysztof Mazur <krzysiek@podlesie.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-31net:atm:fix up ENOIOCTLCMD error handlingWanlong Gao
At commit 07d106d0, Linus pointed out that ENOIOCTLCMD should be translated as ENOTTY to user mode. Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-15atm: fix info leak via getsockname()Mathias Krause
The ATM code fails to initialize the two padding bytes of struct sockaddr_atmpvc inserted for alignment. Add an explicit memset(0) before filling the structure to avoid the info leak. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-15atm: fix info leak in getsockopt(SO_ATMPVC)Mathias Krause
The ATM code fails to initialize the two padding bytes of struct sockaddr_atmpvc inserted for alignment. Add an explicit memset(0) before filling the structure to avoid the info leak. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-04net: Remove casts to same typeJoe Perches
Adding casts of objects to the same type is unnecessary and confusing for a human reader. For example, this cast: int y; int *p = (int *)&y; I used the coccinelle script below to find and remove these unnecessary casts. I manually removed the conversions this script produces of casts with __force and __user. @@ type T; T *p; @@ - (T *)p + p Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-04net: use consume_skb() in place of kfree_skb()Eric Dumazet
Remove some dropwatch/drop_monitor false positives. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial updates from Jiri Kosina: "As usual, it's mostly typo fixes, redundant code elimination and some documentation updates." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits) edac, mips: don't change code that has been removed in edac/mips tree xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer lib: Change mail address of Oskar Schirmer net: Change mail address of Oskar Schirmer arm/m68k: Change mail address of Sebastian Hess i2c: Change mail address of Oskar Schirmer net: Fix tcp_build_and_update_options comment in struct tcp_sock atomic64_32.h: fix parameter naming mismatch Kconfig: replace "--- help ---" with "---help---" c2port: fix bogus Kconfig "default no" edac: Fix spelling errors. qla1280: Remove redundant NULL check before release_firmware() call remoteproc: remove redundant NULL check before release_firmware() qla2xxx: Remove redundant NULL check before release_firmware() call. aic94xx: Get rid of redundant NULL check before release_firmware() call tehuti: delete redundant NULL check before release_firmware() qlogic: get rid of a redundant test for NULL before call to release_firmware() bna: remove redundant NULL test before release_firmware() tg3: remove redundant NULL test before release_firmware() call typhoon: get rid of redundant conditional before all to release_firmware() ...
2012-05-15atm: remove the coupling to token ring supportPaul Gortmaker
The token ring support is going away, so decouple the atm support from it in advance. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2012-05-15net: Convert net_ratelimit uses to net_<level>_ratelimitedJoe Perches
Standardize the net core ratelimited logging functions. Coalesce formats, align arguments. Change a printk then vprintk sequence to use printf extension %pV. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-05-09atm: Convert compare_ether_addr to ether_addr_equalJoe Perches
Use the new bool function ether_addr_equal to add some clarity and reduce the likelihood for misuse of compare_ether_addr for sorting. Done via cocci script: $ cat compare_ether_addr.cocci @@ expression a,b; @@ - !compare_ether_addr(a, b) + ether_addr_equal(a, b) @@ expression a,b; @@ - compare_ether_addr(a, b) + !ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) == 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !ether_addr_equal(a, b) != 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) == 0 + !ether_addr_equal(a, b) @@ expression a,b; @@ - ether_addr_equal(a, b) != 0 + ether_addr_equal(a, b) @@ expression a,b; @@ - !!ether_addr_equal(a, b) + ether_addr_equal(a, b) Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-15net: cleanup unsigned to unsigned intEric Dumazet
Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-13pppoatm: Fix excessive queue bloatDavid Woodhouse
We discovered that PPPoATM has an excessively deep transmit queue. A queue the size of the default socket send buffer (wmem_default) is maintained between the PPP generic core and the ATM device. Fix it to queue a maximum of *two* packets. The one the ATM device is currently working on, and one more for the ATM driver to process immediately in its TX done interrupt handler. The PPP core is designed to feed packets to the channel with minimal latency, so that really ought to be enough to keep the ATM device busy. While we're at it, fix the fact that we were triggering the wakeup tasklet on *every* pppoatm_pop() call. The comment saying "this is inefficient, but doing it right is too hard" turns out to be overly pessimistic... I think :) On machines like the Traverse Geos, with a slow Geode CPU and two high-speed ADSL2+ interfaces, there were reports of extremely high CPU usage which could partly be attributed to the extra wakeups. (The wakeup handling could actually be made a whole lot easier if we stop checking sk->sk_sndbuf altogether. Given that we now only queue *two* packets ever, one wonders what the point is. As it is, you could already deadlock the thing by setting the sk_sndbuf to a value lower than the MTU of the device, and it'd just block for ever.) Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-08Merge branch 'master' into for-nextJiri Kosina
Merge with latest Linus' tree, as I have incoming patches that fix code that is newer than current HEAD of for-next. Conflicts: drivers/net/ethernet/realtek/r8169.c
2012-04-05atm: fix commentsAlexandra Vintila
Signed-off-by: Alexandra Vintila <andavintila@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-28Remove all #inclusions of asm/system.hDavid Howells
Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-04ppp: Replace uses of <linux/if_ppp.h> with <linux/ppp-ioctl.h>Paul Mackerras
Since all that include/linux/if_ppp.h does is #include <linux/ppp-ioctl.h>, this replaces the occurrences of #include <linux/if_ppp.h> with #include <linux/ppp-ioctl.h>. It also corrects an error in Documentation/networking/l2tp.txt, where it referenced include/linux/if_ppp.h as the source of some definitions that are actually now defined in include/linux/if_pppol2tp.h. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/sfc/rx.c Overlapping changes in drivers/net/ethernet/sfc/rx.c, one to change the rx_buf->is_page boolean into a set of u16 flags, and another to adjust how ->ip_summed is initialized. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-22atm: clip: remove clip_tblEric Dumazet
Commit 32092ecf0644 (atm: clip: Use device neigh support on top of "arp_tbl".) introduced a bug since clip_tbl is zeroed : Crash occurs in __neigh_for_each_release() idle_timer_check() must use instead arp_tbl and neigh_check_cb() should ignore non clip neighbours. Idea from David Miller. Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-01atm: clip: Convert over to dst_neigh_lookup().David S. Miller
CLIP only support ipv4, and this is evidenced by the fact that it is a device specific extension of arp_tbl, so this conversion is pretty straightforward. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-05net: Rename dst_get_neighbour{, _raw} to dst_get_neighbour_noref{, _raw}.David Miller
To reflect the fact that a refrence is not obtained to the resulting neighbour entry. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Roland Dreier <roland@purestorage.com>
2011-12-02atm: clip: Remove code commented out since eternity.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30atm: clip: Use device neigh support on top of "arp_tbl".David Miller
Instead of instantiating an entire new neigh_table instance just for ATM handling, use the neigh device private facility. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30atm: clip: Convert over to neighbour_priv()David Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30neigh: Do not set tbl->entry_size in ipv4/ipv6 neigh tables.David Miller
Let the core self-size the neigh entry based upon the key length. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-30neigh: Add infrastructure for allocating device neigh privates.David Miller
netdev->neigh_priv_len records the private area length. This will trigger for neigh_table objects which set tbl->entry_size to zero, and the first instances of this will be forthcoming. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-29atm: br2684: Avoid alignment issuesPascal Hambourg
Use memcmp() instead of cast to u16 when checking the PAD field. Signed-off-by: Pascal Hambourg <pascal@plouf.fr.eu.org> Signed-off-by: chas williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-29atm: br2684: Make headroom and hard_header_len depend on the payload typePascal Hambourg
Routed payload requires less headroom than bridged payload. So do not reallocate headroom if not needed. Also, add worst case AAL5 overhead to netdev->hard_header_len. Signed-off-by: Pascal Hambourg <pascal@plouf.fr.eu.org> Signed-off-by: chas williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-26atm: eliminate atm_guess_pdu2truesize()chas williams - CONTRACTOR
Signed-off-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-22atm: Allow MSG_PEEK for atm socketsJorge Boncompte [DTI2]
Now that the vcc backends do the right thing with respect the receive queue on registration, allow MSK_PEEK for atm sockets. This allows a userspace program to inspect the packets and decide what backend to use to handle them. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-22atm: Introduce vcc_process_recv_queueJorge Boncompte [DTI2]
This function moves the implementation found in the clip and br2684 modules to common code, correctly unlinks the skb from the queue before pushing it and makes pppoatm use it. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-22atm: clip: move clip_devs check to clip_pushJorge Boncompte [DTI2]
This will allow further cleanup. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-22atm: clip: Don't move counters backwardsJorge Boncompte [DTI2]
I don't see the point on substracting the skb len from the netdev stats. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-22atm: br2684: Do not move counters backwardsJorge Boncompte [DTI2]
This snippet has caused several bugs in the past, and I don't see the point on substracting the skb len from netdev stats. Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-14neigh: new unresolved queue limitsEric Dumazet
Le mercredi 09 novembre 2011 à 16:21 -0500, David Miller a écrit : > From: David Miller <davem@davemloft.net> > Date: Wed, 09 Nov 2011 16:16:44 -0500 (EST) > > > From: Eric Dumazet <eric.dumazet@gmail.com> > > Date: Wed, 09 Nov 2011 12:14:09 +0100 > > > >> unres_qlen is the number of frames we are able to queue per unresolved > >> neighbour. Its default value (3) was never changed and is responsible > >> for strange drops, especially if IP fragments are used, or multiple > >> sessions start in parallel. Even a single tcp flow can hit this limit. > > ... > > > > Ok, I've applied this, let's see what happens :-) > > Early answer, build fails. > > Please test build this patch with DECNET enabled and resubmit. The > decnet neigh layer still refers to the removed ->queue_len member. > > Thanks. Ouch, this was fixed on one machine yesterday, but not the other one I used this morning, sorry. [PATCH V5 net-next] neigh: new unresolved queue limits unres_qlen is the number of frames we are able to queue per unresolved neighbour. Its default value (3) was never changed and is responsible for strange drops, especially if IP fragments are used, or multiple sessions start in parallel. Even a single tcp flow can hit this limit. $ arp -d 192.168.20.108 ; ping -c 2 -s 8000 192.168.20.108 PING 192.168.20.108 (192.168.20.108) 8000(8028) bytes of data. 8008 bytes from 192.168.20.108: icmp_seq=2 ttl=64 time=0.322 ms Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-31net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modulesPaul Gortmaker
These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-22Merge branch 'master' of github.com:davem330/netDavid S. Miller
Conflicts: MAINTAINERS drivers/net/Kconfig drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c drivers/net/ethernet/broadcom/tg3.c drivers/net/wireless/iwlwifi/iwl-pci.c drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c drivers/net/wireless/rt2x00/rt2800usb.c drivers/net/wireless/wl12xx/main.c
2011-08-20atm: br2684: Fix oops due to skb->dev being NULLDaniel Schwierzeck
This oops have been already fixed with commit 27141666b69f535a4d63d7bc6d9e84ee5032f82a atm: [br2684] Fix oops due to skb->dev being NULL It happens that if a packet arrives in a VC between the call to open it on the hardware and the call to change the backend to br2684, br2684_regvcc processes the packet and oopses dereferencing skb->dev because it is NULL before the call to br2684_push(). but have been introduced again with commit b6211ae7f2e56837c6a4849316396d1535606e90 atm: Use SKB queue and list helpers instead of doing it by-hand. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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