- 30 Nov, 2016 14 commits
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Johan Hovold authored
Make sure to deregister and free any fixed-link PHY registered using of_phy_register_fixed_link() on probe errors and on driver unbind. Fixes: 407066f8 ("net: fec: Support phys probed from devicetree and fixed-link") Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Johan Hovold authored
Make sure to deregister and free any fixed-link PHY registered using of_phy_register_fixed_link() on probe errors and on driver unbind. Note that we're still leaking any fixed-link PHY registered in the non-OF probe path. Fixes: 9abf0c2b ("net: bcmgenet: use the new fixed PHY helpers") Signed-off-by:
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Johan Hovold authored
Make sure to deregister and free any fixed-link PHY registered using of_phy_register_fixed_link() on probe errors and on driver unbind. Fixes: 186534a3 ("net: systemport: use the new fixed PHY helpers") Signed-off-by:
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Johan Hovold authored
Make sure to deregister and free any fixed-link PHY registered using of_phy_register_fixed_link() on probe errors and on driver unbind. Fixes: c7dfe3ab ("net: ethernet: nb8800: support fixed-link DT node") Signed-off-by:
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Johan Hovold authored
Make sure to deregister and free any fixed-link PHY registered using of_phy_register_fixed_link() on probe errors and on driver unbind. Fixes: 7cdbc6f7 ("altera tse: add support for fixed-links.") Signed-off-by:
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Johan Hovold authored
Add helper to deregister fixed-link PHYs registered using of_phy_register_fixed_link(). Convert the two drivers that care to deregister their fixed-link PHYs to use the new helper, but note that most drivers currently fail to do so. Signed-off-by:
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Johan Hovold authored
Make sure to drop the reference taken by of_parse_phandle() before returning from dsa_slave_phy_setup(). Note that this also modifies the PHY priority so that any fixed-link node is only parsed when no phy-handle is given, which is in accordance with the common scheme for this. Fixes: 0d8bcdd3 ("net: dsa: allow for more complex PHY setups") Signed-off-by:
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Arnaldo Carvalho de Melo authored
As it may get stale and lead to use after free. Acked-by:
Eric Dumazet <eric.dumazet@gmail.com> Cc: Alexander Duyck <aduyck@mirantis.com> Cc: Andrey Konovalov <andreyknvl@google.com> Fixes: cbc53e08 ("GSO: Add GSO type for fixed IPv4 ID") Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by:
Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by:
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Jiri Pirko authored
Be symmetric to hashtable insert and remove filter from hashtable only in case skip sw flag is not set. Fixes: e69985c6 ("net/sched: cls_flower: Introduce support in SKIP SW flag") Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Reviewed-by:
Amir Vadai <amir@vadai.me> Signed-off-by:
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Eric Dumazet authored
pskb_may_pull() can reallocate skb->head, we need to reload dh pointer in dccp_invalid_packet() or risk use after free. Bug found by Andrey Konovalov using syzkaller. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
Andrey Konovalov <andreyknvl@google.com> Signed-off-by:
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Zumeng Chen authored
When a hardware issue happened as described by inline comments, the register write pattern looks like the following: <write ~MACB_BIT(RE)> + wmb(); <write MACB_BIT(RE)> There might be a memory barrier between these two write operations, so add wmb to ensure an flip from 0 to 1 for NCR. Signed-off-by:
Zumeng Chen <zumeng.chen@windriver.com> Acked-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by:
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Cyrille Pitchen authored
On macb only (not gem), when a RX queue corruption was detected from macb_rx(), the RX queue was reset: during this process the RX ring buffer descriptor was initialized by macb_init_rx_ring() but we forgot to also set bp->rx_tail to 0. Indeed, when processing the received frames, bp->rx_tail provides the macb driver with the index in the RX ring buffer of the next buffer to process. So when the whole ring buffer is reset we must also reset bp->rx_tail so the driver is synchronized again with the hardware. Since macb_init_rx_ring() is called from many locations, currently from macb_rx() and macb_init_rings(), we'd rather add the "bp->rx_tail = 0;" line inside macb_init_rx_ring() than add the very same line after each call of this function. Without this fix, the rx queue is not reset properly to recover from queue corruption and connection drop may occur. Signed-off-by:
Cyrille Pitchen <cyrille.pitchen@atmel.com> Fixes: 9ba723b0 ("net: macb: remove BUG_ON() and reset the queue to handle RX errors") Acked-by:
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Herbert Xu authored
The cb->done interface expects to be called in process context. This was broken by the netlink RCU conversion. This patch fixes it by adding a worker struct to make the cb->done call where necessary. Fixes: 21e4902a ("netlink: Lockless lookup with RCU grace...") Reported-by:
Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Acked-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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Amir Vadai authored
Add a validation function to make sure offset is valid: 1. Not below skb head (could happen when offset is negative). 2. Validate both 'offset' and 'at'. Signed-off-by:
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- 28 Nov, 2016 24 commits
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Michael Holzheu authored
The files "sampleip_kern.c" and "trace_event_kern.c" directly access "ctx->regs.ip" which is not available on s390x. Fix this and use the PT_REGS_IP() macro instead. Also fix the macro for s390x and use "psw.addr" from "pt_regs". Reported-by:
Zvonko Kosic <zvonko.kosic@de.ibm.com> Signed-off-by:
Michael Holzheu <holzheu@linux.vnet.ibm.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Nikita Yushchenko authored
_dsa_register_switch() gets a dsa_switch_tree object either via dsa_get_dst() or via dsa_add_dst(). Former path does not increase kref in returned object (resulting into caller not owning a reference), while later path does create a new object (resulting into caller owning a reference). The rest of _dsa_register_switch() assumes that it owns a reference, and calls dsa_put_dst(). This causes a memory breakage if first switch in the tree initialized successfully, but second failed to initialize. In particular, freed dsa_swith_tree object is left referenced by switch that was initialized, and later access to sysfs attributes of that switch cause OOPS. To fix, need to add kref_get() call to dsa_get_dst(). Fixes: 83c0afae ("net: dsa: Add new binding implementation") Signed-off-by:
Nikita Yushchenko <nikita.yoush@cogentembedded.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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David Ahern authored
Andrey reported the following while fuzzing the kernel with syzkaller: kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Modules linked in: CPU: 0 PID: 3859 Comm: a.out Not tainted 4.9.0-rc6+ #429 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 task: ffff8800666d4200 task.stack: ffff880067348000 RIP: 0010:[<ffffffff833617ec>] [<ffffffff833617ec>] icmp6_send+0x5fc/0x1e30 net/ipv6/icmp.c:451 RSP: 0018:ffff88006734f2c0 EFLAGS: 00010206 RAX: ffff8800666d4200 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000018 RBP: ffff88006734f630 R08: ffff880064138418 R09: 0000000000000003 R10: dffffc0000000000 R11: 0000000000000005 R12: 0000000000000000 R13: ffffffff84e7e200 R14: ffff880064138484 R15: ffff8800641383c0 FS: 00007fb3887a07c0(0000) GS:ffff88006cc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 000000006b040000 CR4: 00000000000006f0 Stack: ffff8800666d4200 ffff8800666d49f8 ffff8800666d4200 ffffffff84c02460 ffff8800666d4a1a 1ffff1000ccdaa2f ffff88006734f498 0000000000000046 ffff88006734f440 ffffffff832f4269 ffff880064ba7456 0000000000000000 Call Trace: [<ffffffff83364ddc>] icmpv6_param_prob+0x2c/0x40 net/ipv6/icmp.c:557 [< inline >] ip6_tlvopt_unknown net/ipv6/exthdrs.c:88 [<ffffffff83394405>] ip6_parse_tlv+0x555/0x670 net/ipv6/exthdrs.c:157 [<ffffffff8339a759>] ipv6_parse_hopopts+0x199/0x460 net/ipv6/exthdrs.c:663 [<ffffffff832ee773>] ipv6_rcv+0xfa3/0x1dc0 net/ipv6/ip6_input.c:191 ... icmp6_send / icmpv6_send is invoked for both rx and tx paths. In both cases the dst->dev should be preferred for determining the L3 domain if the dst has been set on the skb. Fallback to the skb->dev if it has not. This covers the case reported here where icmp6_send is invoked on Rx before the route lookup. Fixes: 5d41ce29 ("net: icmp6_send should use dst dev to determine L3 domain") Reported-by:
David Ahern <dsa@cumulusnetworks.com> Signed-off-by:
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David S. Miller authored
Tariq Toukan says: ==================== mlx4 bug fixes for 4.9 This patchset includes 2 bug fixes: * In patch 1 we revert the commit that avoids invoking unregister_netdev in shutdown flow, as it introduces netdev presence issues where it can be accessed unsafely by ndo operations during the flow. * Patch 2 is a simple fix for a variable uninitialization issue. Series generated against net commit: 6998cc6e tipc: resolve connection flow control compatibility problem ==================== Signed-off-by:
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Jack Morgenstein authored
net/mlx4: Fix uninitialized fields in rule when adding promiscuous mode to device managed flow steering In procedure mlx4_flow_steer_promisc_add(), several fields were left uninitialized in the rule structure. Correctly initialize these fields. Fixes: 592e49dd ("net/mlx4: Implement promiscuous mode with device managed flow-steering") Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
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Tariq Toukan authored
This reverts commit 9d769311. Using unregister_netdev at shutdown flow prevents calling the netdev's ndos or trying to access its freed resources. This fixes crashes like the following: Call Trace: [<ffffffff81587a6e>] dev_get_phys_port_id+0x1e/0x30 [<ffffffff815a36ce>] rtnl_fill_ifinfo+0x4be/0xff0 [<ffffffff815a53f3>] rtmsg_ifinfo_build_skb+0x73/0xe0 [<ffffffff815a5476>] rtmsg_ifinfo.part.27+0x16/0x50 [<ffffffff815a54c8>] rtmsg_ifinfo+0x18/0x20 [<ffffffff8158a6c6>] netdev_state_change+0x46/0x50 [<ffffffff815a5e78>] linkwatch_do_dev+0x38/0x50 [<ffffffff815a6165>] __linkwatch_run_queue+0xf5/0x170 [<ffffffff815a6205>] linkwatch_event+0x25/0x30 [<ffffffff81099a82>] process_one_work+0x152/0x400 [<ffffffff8109a325>] worker_thread+0x125/0x4b0 [<ffffffff8109a200>] ? rescuer_thread+0x350/0x350 [<ffffffff8109fc6a>] kthread+0xca/0xe0 [<ffffffff8109fba0>] ? kthread_park+0x60/0x60 [<ffffffff816a1285>] ret_from_fork+0x25/0x30 Fixes: 9d769311 ("net/mlx4_en: Avoid unregister_netdev at shutdown flow") Signed-off-by:
Sebastian Ott <sebott@linux.vnet.ibm.com> Reported-by:
Steve Wise <swise@opengridcomputing.com> Cc: Jiri Pirko <jiri@mellanox.com> Signed-off-by:
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Roi Dayan authored
Export tc_tunnel_key so it can be used from user space. Signed-off-by:
Roi Dayan <roid@mellanox.com> Reviewed-by:
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Borislav Petkov authored
Fix: drivers/net/ethernet/amd/xgbe/xgbe-main.c:835:12: warning: ‘xgbe_suspend’ defined but not used [-Wunused-function] drivers/net/ethernet/amd/xgbe/xgbe-main.c:855:12: warning: ‘xgbe_resume’ defined but not used [-Wunused-function] I see it during randconfig builds here. Signed-off-by:Borislav Petkov <bp@suse.de> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: netdev@vger.kernel.org Signed-off-by:
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Julian Wollrath authored
Signed-off-by:
Julian Wollrath <jwollrath@web.de> Signed-off-by:
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David S. Miller authored
Martin Blumenstingl says: ==================== net: phy: realtek: fix RTL8211F TX-delay handling The RTL8211F PHY driver currently enables the TX-delay only when the phy-mode is PHY_INTERFACE_MODE_RGMII. This is incorrect, because there are three RGMII variations of the phy-mode which explicitly request the PHY to enable the RX and/or TX delay, while PHY_INTERFACE_MODE_RGMII specifies that the PHY should disable the RX and/or TX delays. Additionally to the RTL8211F PHY driver change this contains a small update to the phy-mode documentation to clarify the purpose of the RGMII phy-modes. While this may not be perfect yet it's at least a start. Please feel free to drop this patch from this series and send an improved version yourself. These patches are the results of recent discussions, see [0] [0] http://lists.infradead.org/pipermail/linux-amlogic/2016-November/001688.html ==================== Signed-off-by:
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Martin Blumenstingl authored
The old logic always enabled the TX-delay when the phy-mode was set to PHY_INTERFACE_MODE_RGMII. There are dedicated phy-modes which tell the PHY driver to enable the RX and/or TX delays: - PHY_INTERFACE_MODE_RGMII should disable the RX and TX delay in the PHY (if required, the MAC should add the delays in this case) - PHY_INTERFACE_MODE_RGMII_ID should enable RX and TX delay in the PHY - PHY_INTERFACE_MODE_RGMII_TXID should enable the TX delay in the PHY - PHY_INTERFACE_MODE_RGMII_RXID should enable the RX delay in the PHY (currently not supported by RTL8211F) With this patch we enable the TX delay for PHY_INTERFACE_MODE_RGMII_ID and PHY_INTERFACE_MODE_RGMII_TXID. Additionally we now explicity disable the TX-delay, which seems to be enabled automatically after a hard-reset of the PHY (by triggering it's reset pin) to get a consistent state (as defined by the phy-mode). This fixes a compatibility problem with some SoCs where the TX-delay was also added by the MAC. With the TX-delay being applied twice the TX clock was off and TX traffic was broken or very slow (<10Mbit/s) on 1000Mbit/s links. Signed-off-by:
Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Martin Blumenstingl authored
RGMII requires special RX and/or TX delays depending on the actual hardware circuit/wiring. These delays can be added by the MAC, the PHY or the designer of the circuit (the latter means that no delay has to be added by PHY or MAC). There are 4 RGMII phy-modes used describe where a delay should be applied: - rgmii: the RX and TX delays are either added by the MAC (where the exact delay is typically configurable, and can be turned off when no extra delay is needed) or not needed at all (because the hardware wiring adds the delay already). The PHY should neither add the RX nor TX delay in this case. - rgmii-rxid: configures the PHY to enable the RX delay. The MAC should not add the RX delay in this case. - rgmii-txid: configures the PHY to enable the TX delay. The MAC should not add the TX delay in this case. - rgmii-id: combines rgmii-rxid and rgmii-txid and thus configures the PHY to enable the RX and TX delays. The MAC should neither add the RX nor TX delay in this case. Document these cases in the ethernet.txt documentation to make it clear when to use each mode. If applied incorrectly one might end up with MAC and PHY both enabling for example the TX delay, which breaks ethernet TX traffic on 1000Mbit/s links. Signed-off-by:
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Daniel Borkmann authored
Roi reported a crash in flower where tp->root was NULL in ->classify() callbacks. Reason is that in ->destroy() tp->root is set to NULL via RCU_INIT_POINTER(). It's problematic for some of the classifiers, because this doesn't respect RCU grace period for them, and as a result, still outstanding readers from tc_classify() will try to blindly dereference a NULL tp->root. The tp->root object is strictly private to the classifier implementation and holds internal data the core such as tc_ctl_tfilter() doesn't know about. Within some classifiers, such as cls_bpf, cls_basic, etc, tp->root is only checked for NULL in ->get() callback, but nowhere else. This is misleading and seemed to be copied from old classifier code that was not cleaned up properly. For example, d3fa76ee ("[NET_SCHED]: cls_basic: fix NULL pointer dereference") moved tp->root initialization into ->init() routine, where before it was part of ->change(), so ->get() had to deal with tp->root being NULL back then, so that was indeed a valid case, after d3fa76ee, not really anymore. We used to set tp->root to NULL long ago in ->destroy(), see 47a1a1d4 ("pkt_sched: remove unnecessary xchg() in packet classifiers"); but the NULLifying was reintroduced with the RCUification, but it's not correct for every classifier implementation. In the cases that are fixed here with one exception of cls_cgroup, tp->root object is allocated and initialized inside ->init() callback, which is always performed at a point in time after we allocate a new tp, which means tp and thus tp->root was not globally visible in the tp chain yet (see tc_ctl_tfilter()). Also, on destruction tp->root is strictly kfree_rcu()'ed in ->destroy() handler, same for the tp which is kfree_rcu()'ed right when we return from ->destroy() in tcf_destroy(). This means, the head object's lifetime for such classifiers is always tied to the tp lifetime. The RCU callback invocation for the two kfree_rcu() could be out of order, but that's fine since both are independent. Dropping the RCU_INIT_POINTER(tp->root, NULL) for these classifiers here means that 1) we don't need a useless NULL check in fast-path and, 2) that outstanding readers of that tp in tc_classify() can still execute under respect with RCU grace period as it is actually expected. Things that haven't been touched here: cls_fw and cls_route. They each handle tp->root being NULL in ->classify() path for historic reasons, so their ->destroy() implementation can stay as is. If someone actually cares, they could get cleaned up at some point to avoid the test in fast path. cls_u32 doesn't set tp->root to NULL. For cls_rsvp, I just added a !head should anyone actually be using/testing it, so it at least aligns with cls_fw and cls_route. For cls_flower we additionally need to defer rhashtable destruction (to a sleepable context) after RCU grace period as concurrent readers might still access it. (Note that in this case we need to hold module reference to keep work callback address intact, since we only wait on module unload for all call_rcu()s to finish.) This fixes one race to bring RCU grace period guarantees back. Next step as worked on by Cong however is to fix 1e052be6 ("net_sched: destroy proto tp when all filters are gone") to get the order of unlinking the tp in tc_ctl_tfilter() for the RTM_DELTFILTER case right by moving RCU_INIT_POINTER() before tcf_destroy() and let the notification for removal be done through the prior ->delete() callback. Both are independant issues. Once we have that right, we can then clean tp->root up for a number of classifiers by not making them RCU pointers, which requires a new callback (->uninit) that is triggered from tp's RCU callback, where we just kfree() tp->root from there. Fixes: 1f947bf1 ("net: sched: rcu'ify cls_bpf") Fixes: 9888faef ("net: sched: cls_basic use RCU") Fixes: 70da9f0b ("net: sched: cls_flow use RCU") Fixes: 77b9900e ("tc: introduce Flower classifier") Fixes: bf3994d2 ("net/sched: introduce Match-all classifier") Fixes: 952313bd ("net: sched: cls_cgroup use RCU") Reported-by:
Daniel Borkmann <daniel@iogearbox.net> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: John Fastabend <john.fastabend@gmail.com> Cc: Roi Dayan <roid@mellanox.com> Cc: Jiri Pirko <jiri@mellanox.com> Acked-by:
John Fastabend <john.r.fastabend@intel.com> Acked-by:
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Jon Paul Maloy authored
In commit e4bf4f76 ("tipc: simplify packet sequence number handling") we changed the internal representation of the packet sequence number counters from u32 to u16, reflecting what is really sent over the wire. Since then some link statistics counters have been displaying incorrect values, partially because the counters meant to be used as sequence number snapshots are now used as direct counters, stored as u32, and partially because some counter updates are just missing in the code. In this commit we correct this in two ways. First, we base the displayed packet sent/received values on direct counters instead of as previously a calculated difference between current sequence number and a snapshot. Second, we add the missing updates of the counters. This change is compatible with the current netlink API, and requires no changes to the user space tools. Signed-off-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsecDavid S. Miller authored
Steffen Klassert says: ==================== pull request (net): ipsec 2016-11-25 1) Fix a refcount leak in vti6. From Nicolas Dichtel. 2) Fix a wrong if statement in xfrm_sk_policy_lookup. From Florian Westphal. 3) The flowcache watermarks are per cpu. Take this into account when comparing to the threshold where we refusing new allocations. From Miroslav Urbanek. Please pull or let me know if there are problems. ==================== Signed-off-by: -
Gao Feng authored
The macvtap_newlink registers the netdev rx_handler firstly, but it does not unregister the handler if macvlan_common_newlink failed. Signed-off-by:
Gao Feng <fgao@ikuai8.com> Acked-by:
Jason Wang <jasowang@redhat.com> Signed-off-by:
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David S. Miller authored
Johan Hovold says: ==================== net: fix phydev reference leaks This series fixes a number of phydev reference leaks (and one of_node leak) due to failure to put the reference taken by of_phy_find_device(). Note that I did not try to fix drivers/net/phy/xilinx_gmii2rgmii.c which still leaks a reference. Against net but should apply just as fine to net-next. v2: - use put_device() instead of phy_dev_free() to put the references taken in net/dsa (patch 1/4). - add four new patches fixing similar leaks ==================== Signed-off-by: -
Johan Hovold authored
Make sure to drop the reference taken by of_phy_find_device() during probe on probe errors and on driver unbind. Also drop the of_node reference taken by of_parse_phandle() in the same path. Fixes: b9b17deb ("net: emac: emac gigabit ethernet controller driver") Signed-off-by:
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Johan Hovold authored
Make sure to drop the reference taken by of_phy_find_device() when looking up a fixed-link phydev during probe. Fixes: 57ba4c9b ("fsl/fman: Add FMan MAC support") Signed-off-by:
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Johan Hovold authored
Make sure to drop the reference taken by of_phy_find_device() during initialisation when later freeing the struct fman_mac. Fixes: 57ba4c9b ("fsl/fman: Add FMan MAC support") Signed-off-by:
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Johan Hovold authored
Make sure to drop the reference taken by of_phy_find_device() when initialising MOCA PHYs. Fixes: 6ac9de5f ("net: bcmgenet: Register link_update callback for all MoCA PHYs") Signed-off-by:
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Johan Hovold authored
Make sure to drop the reference taken by of_phy_find_device() when registering and deregistering the fixed-link PHY-device. Fixes: 39b0c705 ("net: dsa: Allow configuration of CPU & DSA port speeds/duplex") Signed-off-by:
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Arnd Bergmann authored
irda_get_mtt() returns a hardcoded '10000' in some cases, and with gcc-7, we get a build error because this triggers a compile-time check in udelay(): drivers/net/irda/w83977af_ir.o: In function `w83977af_hard_xmit': w83977af_ir.c:(.text.w83977af_hard_xmit+0x14c): undefined reference to `__bad_udelay' Older compilers did not run into this because they either did not completely inline the irda_get_mtt() or did not consider the 10000 value a constant expression. The code has been wrong since the start of git history. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Gao Feng authored
When ipvlan_link_new fails and creates one ipvlan port, it does not destroy the ipvlan port created. It causes mem leak and the physical device contains invalid ipvlan data. Signed-off-by:
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- 27 Nov, 2016 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs splice fix from Al Viro. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix default_file_splice_read()
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Al Viro authored
Botched calculation of number of pages. As the result, we were dropping pieces when doing splice to pipe from e.g. 9p. Reported-by:
Al Viro <viro@zeniv.linux.org.uk>
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