- 04 Nov, 2013 29 commits
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Sergei Shtylyov authored
Check the platform data pointer before dereferencing it and error out of the probe() method if it's NULL. This has additional effect of preventing kernel oops with outdated platform data containing zero PHY address instead (such as on SolutionEngine7710). Signed-off-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Bjørn Mork says: ==================== cdc_mbim + qmi_wwan trivial fixes This series fixes three problems Oliver pointed out during the review of the new huawei_cdc_ncm driver: http://patchwork.ozlabs.org/patch/278903/ That innocent driver only used cdc_mbim as a blueprint, and all the blame should really have gone to me.... I do have a similar fix for the manage_power issue in the cdc-wdm USB class driver as well. It will be submitted to linux-usb as soon as Greg opens up his mailbox again :-) ==================== Signed-off-by:
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Bjørn Mork authored
Reported-by:
Oliver Neukum <oneukum@suse.de> Signed-off-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
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Bjørn Mork authored
Reported-by:
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Bjørn Mork authored
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Bjørn Mork authored
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Bjørn Mork authored
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David S. Miller authored
Himanshu Madhani says: ==================== qlcnic: Multiple Tx queue support and code refactoring This Patch series contains following changes o Refactored code to calculate, validate and assign Tx/SDS rings for various modes of driver. o Enhanced ethtool statistics for multi Tx queue on all supported adapters. o Enable multiple Tx queue for 83xx and 84xx Series adapters. o Register netdev for failed device state. changes from v1 -> v2 o Dropped patch to replace inappropriate usage of kzalloc() with vzalloc(). Please apply to net-next. ==================== Signed-off-by: -
Himanshu Madhani authored
Signed-off-by:
Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by:
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Himanshu Madhani authored
o 83xx and 84xx firmware is capable of multiple Tx queues. This patch will enable multiple Tx queues for 83xx/84xx series adapters. Max number of Tx queues supported will be 8. Signed-off-by:
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Himanshu Madhani authored
o Current driver has duplicate code for validating user input for changing Tx/SDS rings using set_channel ethtool interface. This patch removes duplicate code and refactored Tx/SDS ring validation for 82xx/83xx/84xx series adapter. o Refactored code now calculates maximum Tx/Rx ring driver can support based on Default, NPAR and SRIOV PF/VF mode of driver. Signed-off-by:
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Himanshu Madhani authored
o Enhance ethtool statistics to display multiple Tx queue stats for all supported adapters. Signed-off-by:
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Sucheta Chakraborty authored
o Without failing probe, register netdev when device is in FAILED state. o Device will come up with minimum functionality and allow diagnostics and repair of the adapter. Signed-off-by:
Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by:
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Daniel Borkmann authored
We can safely reduce the number of test cases by a tenth. There is no particular need to run as many as we're running now for crc32{,c}_combine, that gives us still ~8000 tests we're doing if people run kernels with crc selftests enabled which is perfectly fine. Signed-off-by:Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
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Daniel Borkmann authored
Fengguang reports that when crc32 selftests are running on startup, on some e.g. 32bit systems, we can get a CPU stall like "INFO: rcu_sched self-detected stall on CPU { 0} (t=2101 jiffies g=4294967081 c=4294967080 q=41)". As this is not intended, add a cond_resched() at the end of a test case to fix it. Introduced by efba721f ("lib: crc32: add test cases for crc32{, c}_combine routines"). Reported-by:Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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Daniel Borkmann authored
This patch fixes a build warning in skb_checksum() by wrapping the csum_partial() usage in skb_checksum(). The problem is that on a few architectures, csum_partial is used with prefix asmlinkage whereas on most architectures it's not. So fix this up generically as we did with csum_block_add_ext() to match the signature. Introduced by 2817a336 ("net: skb_checksum: allow custom update/combine for walking skb"). Reported-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Conflicts: drivers/net/ethernet/emulex/benet/be.h drivers/net/netconsole.c net/bridge/br_private.h Three mostly trivial conflicts. The net/bridge/br_private.h conflict was a function signature (argument addition) change overlapping with the extern removals from Joe Perches. In drivers/net/netconsole.c we had one change adjusting a printk message whilst another changed "printk(KERN_INFO" into "pr_info(". Lastly, the emulex change was a new inline function addition overlapping with Joe Perches's extern removals. Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: "I'm sending a pull request of these lingering bug fixes for networking before the normal merge window material because some of this stuff I'd like to get to -stable ASAP" 1) cxgb3 stopped working on 32-bit machines, fix from Ben Hutchings. 2) Structures passed via netlink for netfilter logging are not fully initialized. From Mathias Krause. 3) Properly unlink upper openvswitch device during notifications, from Alexei Starovoitov. 4) Fix race conditions involving access to the IP compression scratch buffer, from Michal Kubrecek. 5) We don't handle the expiration of MTU information contained in ipv6 routes sometimes, fix from Hannes Frederic Sowa. 6) With Fast Open we can miscompute the TCP SYN/ACK RTT, from Yuchung Cheng. 7) Don't take TCP RTT sample when an ACK doesn't acknowledge new data, also from Yuchung Cheng. 8) The decreased IPSEC garbage collection threshold causes problems for some people, bump it back up. From Steffen Klassert. 9) Fix skb->truesize calculated by tcp_tso_segment(), from Eric Dumazet. 10) flow_dissector doesn't validate packet lengths sufficiently, from Jason Wang * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits) net/mlx4_core: Fix call to __mlx4_unregister_mac net: sctp: do not trigger BUG_ON in sctp_cmd_delete_tcb net: flow_dissector: fail on evil iph->ihl xfrm: Fix null pointer dereference when decoding sessions can: kvaser_usb: fix usb endpoints detection can: c_can: Fix RX message handling, handle lost message before EOB doc:net: Fix typo in Documentation/networking bgmac: don't update slot on skb alloc/dma mapping error ibm emac: Fix locking for enable/disable eob irq ibm emac: Don't call napi_complete if napi_reschedule failed virtio-net: correctly handle cpu hotplug notifier during resuming bridge: pass correct vlan id to multicast code net: x25: Fix dead URLs in Kconfig netfilter: xt_NFQUEUE: fix --queue-bypass regression xen-netback: use jiffies_64 value to calculate credit timeout cxgb3: Fix length calculation in write_ofld_wr() on 32-bit architectures bnx2x: Disable VF access on PF removal bnx2x: prevent FW assert on low mem during unload tcp: gso: fix truesize tracking xfrm: Increase the garbage collector threshold ... -
Jack Morgenstein authored
In function mlx4_master_deactivate_admin_state() __mlx4_unregister_mac was called using the MAC index. It should be called with the value of the MAC itself. Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
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git://gitorious.org/linux-can/linux-canDavid S. Miller authored
Marc Kleine-Budde says: ==================== I have two late fixes for the v3.12 release: The first patch fixes a problem in the c_can's RX message handling, which can lead to an endless interrupt loop under heavy load if messages are lost. The second patch is by Olivier Sobrie and fixes the endpoint detection of the kvaser_usb driver, which is needed for some devices. ==================== Signed-off-by: -
Daniel Borkmann authored
Introduced in f9e42b85 ("net: sctp: sideeffect: throw BUG if primary_path is NULL"), we intended to find a buggy assoc that's part of the assoc hash table with a primary_path that is NULL. However, we better remove the BUG_ON for now and find a more suitable place to assert for these things as Mark reports that this also triggers the bug when duplication cookie processing happens, and the assoc is not part of the hash table (so all good in this case). Such a situation can for example easily be reproduced by: tc qdisc add dev eth0 root handle 1: prio bands 2 priomap 1 1 1 1 1 1 tc qdisc add dev eth0 parent 1:2 handle 20: netem loss 20% tc filter add dev eth0 protocol ip parent 1: prio 2 u32 match ip \ protocol 132 0xff match u8 0x0b 0xff at 32 flowid 1:2 This drops 20% of COOKIE-ACK packets. After some follow-up discussion with Vlad we came to the conclusion that for now we should still better remove this BUG_ON() assertion, and come up with two follow-ups later on, that is, i) find a more suitable place for this assertion, and possibly ii) have a special allocator/initializer for such kind of temporary assocs. Reported-by:
Mark Thomas <Mark.Thomas@metaswitch.com> Signed-off-by:
Vlad Yasevich <vyasevich@gmail.com> Signed-off-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
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Arvid Brodin authored
High-availability Seamless Redundancy ("HSR") provides instant failover redundancy for Ethernet networks. It requires a special network topology where all nodes are connected in a ring (each node having two physical network interfaces). It is suited for applications that demand high availability and very short reaction time. HSR acts on the Ethernet layer, using a registered Ethernet protocol type to send special HSR frames in both directions over the ring. The driver creates virtual network interfaces that can be used just like any ordinary Linux network interface, for IP/TCP/UDP traffic etc. All nodes in the network ring must be HSR capable. This code is a "best effort" to comply with the HSR standard as described in IEC 62439-3:2010 (HSRv0). Signed-off-by:Arvid Brodin <arvid.brodin@xdin.com> Signed-off-by:
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Eric Dumazet authored
Joby Poriyath provided a xen-netback patch to reduce the size of xenvif structure as some netdev allocation could fail under memory pressure/fragmentation. This patch is handling the problem at the core level, allowing any netdev structures to use vmalloc() if kmalloc() failed. As vmalloc() adds overhead on a critical network path, add __GFP_REPEAT to kzalloc() flags to do this fallback only when really needed. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
Joby Poriyath <joby.poriyath@citrix.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by:
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David S. Miller authored
Daniel Borkmann says: ==================== SCTP fix/updates Please see patch 5 for the main description/motivation, the rest just brings in the needed functionality for that. Although this is actually a fix, I've based it against net-next as some additional work for fixing it was needed. ==================== Acked-by:
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Daniel Borkmann authored
This fixes an outstanding bug found through IPVS, where SCTP packets with skb->data_len > 0 (non-linearized) and empty frag_list, but data accumulated in frags[] member, are forwarded with incorrect checksum letting SCTP initial handshake fail on some systems. Linearizing each SCTP skb in IPVS to prevent that would not be a good solution as this leads to an additional and unnecessary performance penalty on the load-balancer itself for no good reason (as we actually only want to update the checksum, and can do that in a different/better way presented here). The actual problem is elsewhere, namely, that SCTP's checksumming in sctp_compute_cksum() does not take frags[] into account like skb_checksum() does. So while we are fixing this up, we better reuse the existing code that we have anyway in __skb_checksum() and use it for walking through the data doing checksumming. This will not only fix this issue, but also consolidates some SCTP code with core sk_buff code, bringing it closer together and removing respectively avoiding reimplementation of skb_checksum() for no good reason. As crc32c() can use hardware implementation within the crypto layer, we leave that intact (it wraps around / falls back to e.g. slice-by-8 algorithm in __crc32c_le() otherwise); plus use the __crc32c_le_combine() combinator for crc32c blocks. Also, we remove all other SCTP checksumming code, so that we only have to use sctp_compute_cksum() from now on; for doing that, we need to transform SCTP checkumming in output path slightly, and can leave the rest intact. Signed-off-by:
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Daniel Borkmann authored
Currently, skb_checksum walks over 1) linearized, 2) frags[], and 3) frag_list data and calculats the one's complement, a 32 bit result suitable for feeding into itself or csum_tcpudp_magic(), but unsuitable for SCTP as we're calculating CRC32c there. Hence, in order to not re-implement the very same function in SCTP (and maybe other protocols) over and over again, use an update() + combine() callback internally to allow for walking over the skb with different algorithms. Signed-off-by:
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Daniel Borkmann authored
We already have 100 test cases for crcs itself, so split the test buffer with a-prio known checksums, and test crc of two blocks against crc of the whole block for the same results. Output/result with CONFIG_CRC32_SELFTEST=y: [ 2.687095] crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64 [ 2.687097] crc32: self tests passed, processed 225944 bytes in 278177 nsec [ 2.687383] crc32c: CRC_LE_BITS = 64 [ 2.687385] crc32c: self tests passed, processed 225944 bytes in 141708 nsec [ 7.336771] crc32_combine: 113072 self tests passed [ 12.050479] crc32c_combine: 113072 self tests passed [ 17.633089] alg: No test for crc32 (crc32-pclmul) Signed-off-by:
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Daniel Borkmann authored
This patch adds a combinator to merge two or more crc32{,c}s into a new one. This is useful for checksum computations of fragmented skbs that use crc32/crc32c as checksums. The arithmetics for combining both in the GF(2) was taken and slightly modified from zlib. Only passing two crcs is insufficient as two crcs and the length of the second piece is needed for merging. The code is made generic, so that only polynomials need to be passed for crc32_le resp. crc32c_le. Signed-off-by: -
Daniel Borkmann authored
This is nothing more but a whitepace cleanup, as 80 chars is not a hard but soft limit, and otherwise makes the test cases array really look ugly. So fix it up. Signed-off-by:
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- 03 Nov, 2013 3 commits
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Linus Torvalds authored
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
Pull MIPS fixes from Ralf Baechle: "Three fixes across arch/mips with the most complex one being the GIC interrupt fix - at nine lines still not monster. I'm confident this are the final MIPS patches even if there should go for an rc8" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: ralink: fix return value check in rt_timer_probe() MIPS: malta: Fix GIC interrupt offsets MIPS: Perf: Fix 74K cache map
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Mathias Krause authored
Negative message lengths make no sense -- so don't do negative queue lenghts or identifier counts. Prevent them from getting negative. Also change the underlying data types to be unsigned to avoid hairy surprises with sign extensions in cases where those variables get evaluated in unsigned expressions with bigger data types, e.g size_t. In case a user still wants to have "unlimited" sizes she could just use INT_MAX instead. Signed-off-by:
Mathias Krause <minipli@googlemail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- 02 Nov, 2013 8 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linuxLinus Torvalds authored
Pull ARM kallsyms fix from Rusty Russell: "Last minute perf unbreakage for ARM modules; spent a day in linux-next" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: scripts/kallsyms: filter symbols not in kernel address space
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Vineet Gupta authored
A vmalloc fault needs to sync up PGD/PTE entry from init_mm to current task's "active_mm". ARC vmalloc fault handler however was using mm. A vmalloc fault for non user task context (actually pre-userland, from init thread's open for /dev/console) caused the handler to deref NULL mm (for mm->pgd) The reasons it worked so far is amazing: 1. By default (!SMP), vmalloc fault handler uses a cached value of PGD. In SMP that MMU register is repurposed hence need for mm pointer deref. 2. In pre-3.12 SMP kernel, the problem triggering vmalloc didn't exist in pre-userland code path - it was introduced with commit 20bafb3d "n_tty: Move buffers into n_tty_data" Signed-off-by:
Vineet Gupta <vgupta@synopsys.com> Cc: Gilad Ben-Yossef <gilad@benyossef.com> Cc: Noam Camus <noamc@ezchip.com> Cc: stable@vger.kernel.org #3.10 and 3.11 Cc: Peter Hurley <peter@hurleysoftware.com> Signed-off-by:
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Jason Wang authored
We don't validate iph->ihl which may lead a dead loop if we meet a IPIP skb whose iph->ihl is zero. Fix this by failing immediately when iph->ihl is evil (less than 5). This issue were introduced by commit ec5efe79 (rps: support IPIP encapsulation). Cc: Eric Dumazet <edumazet@google.com> Cc: Petr Matousek <pmatouse@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
Jason Wang <jasowang@redhat.com> Acked-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-nextDavid S. Miller authored
Conflicts: net/xfrm/xfrm_policy.c Minor merge conflict in xfrm_policy.c, consisting of overlapping changes which were trivial to resolve. Signed-off-by: -
Dan Carpenter authored
There is an extra semi-colon so bond_get_size() doesn't return the correct value. Fixes: ec76aa49 ('bonding: add Netlink support active_slave option') Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Veaceslav Falico <vfalico@redhat.com> Reviewed-by:
Jiri Pirko <jiri@resnulli.us> Signed-off-by:
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David S. Miller authored
Bjørn Mork says: ==================== cdc_ncm: many small and mostly trivial fixes This series ended up longer than expected, and it is still not complete. There is more to come when time allows... Most changes are trivial. Notable non-trivial changes are - removed filtering of identical speed notifications - tx_max calulation is changed to count the pad byte if necessary, and respect the device limit as an absolute upper limit even if it is too low according to the spec - remove the bug preventing SET_MAX_DATAGRAM_SIZE from having any effect - drop the pad-to-max if ZLPs are enabled - the driver specific VERSION is dropped - dev->hard_mtu is set to tx_max instead of max_datagram_size causing usbnet to calculate the qlen based on the real max size of tx skbs This series has been tested, along with the previously posted cdc_mbim series, on the NCM and MBIM devices I have: - Ericsson F5521gw (NCM) - Huawei E367 (MBIM) - D-Link DWM-156 A7 (MBIM w/ too low dwNtb{In,Out}MaxSize bug) - Sierra Wireless MC7710 (MBIM w/ ZLP and CDC Union bugs) Apart from the D-Link modem dropping a lot less oversized frames with the fix dedicated to it, there are no end user noticable functional changes as a result of this series. But all the non-trivial changes I listed above are of course detectable by users looking at that specific area (except maybe the removed speed notification, which requires a device sending duplicates to be noticable - I don't have any such device). ==================== Signed-off-by: -
Bjørn Mork authored
There are MBIM devices out there reporting dwNtbInMaxSize=2048 dwNtbOutMaxSize=2048 and since the spec require a datagram max size of at least 2048, this means that a full sized datagram will never fit. Still, sending larger NTBs than the device supports is not going to help. We do not have any other options than either a) refusing to bindi, or b) respect the insanely low value. Alternative b will at least make these devices work, so go for it. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by:
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Bjørn Mork authored
Make it a bit easier for users to figure out what goes wrong when bind fails. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by:
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