- 04 Nov, 2013 13 commits
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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: David S. Miller <davem@davemloft.net>
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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 ...
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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: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: Daniel Borkmann <dborkman@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: Neil Horman <nhorman@tuxdriver.com> Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Daniel Borkmann <dborkman@redhat.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
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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 <dborkman@redhat.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Daniel Borkmann <dborkman@redhat.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
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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 24 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: Linus Torvalds <torvalds@linux-foundation.org>
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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: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: David S. Miller <davem@davemloft.net>
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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: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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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: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Most setup errors are ignored to ensure maximum firmware compatibilty. But GET_NTB_PARAMETERS and the functional descriptors are required. Use proper error codes and log level if these fail. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Rewriting the "set max datagram" part of dc_ncm_setup to separate the selection and validatation of the size from the code which optionally informs the device of this value. This ensures that we use the correct value regardless of device support for the get and set commands. Removing some of the many indent levels while doing this to make the code more readable. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Converting the constants used in these comparisons at build time instead of converting the variables for every received frame at run time. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
These signatures are well known bit patterns, mostly made up of ascii characters. Mentally parsing works best if they are printed in hex. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Take advantage of standard device name prefixing and netdevice msglvl control where possible. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Fix cut'n'paste typo. Log the bogus length and not the irrelevant signature. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
usbnet use the hard_mtu value for sizing the tx queue and nothing else. We will be transmitting buffers of up to tx_max size, so that's the proper value to give usbnet. The individual datagram size is completely irrelevant here. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
No need to keep this code duplicated from usbnet. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
These functions were merely wrappers around the usbnet variants. Remove them. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Padding NTBs to max size is part of the support for devices optimizing their DMA transfers. This optimization depends on max sized NTBs not being ZLP terminated. So we are much better off dropping the padding if we are going to send a ZLP anyway. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
The probed interface must be the master/control interface of the function. Make this explicit and simplify redundant tests. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
header_desc was completely unused and union_desc was never used outside cdc_ncm_bind_common. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
We need to inform the device about the *new* value, not the old one. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
Moving the call to cdc_ncm_setup() after the endpoint setup removes the last remaining reference to ncm_parm outside cdc_ncm_setup. Collecting all the ncm_parm based calculations in cdc_ncm_setup improves readability. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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Bjørn Mork authored
These fields are only used to prevent printing the same speeds multiple times if we receive multiple identical speed notifications. The value of these printk's is questionable, and even more so when we filter out some of the notifications sent us by the firmware. If we are going to print any of these, then we should print them all. Removing little used fields is a bonus. Cc: Alexey Orishko <alexey.orishko@gmail.com> Signed-off-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
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