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2019-02-28s390/qeth: don't defer close_dev work during recoveryJulian Wiedmann4-5/+3
The recovery code already runs in a kthread, we don't have to defer the offlining further. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28s390/qeth: remove a redundant check for card->devJulian Wiedmann1-1/+1
smatch complains that __qeth_l3_set_offline() first accesses card->dev, and then later checks whether the pointer is valid. Since commit d3d1b205e89f ("s390/qeth: allocate netdevice early"), the pointer is _always_ valid - that patch merely missed to remove this one check. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28s390/qeth: call dev_close() during recoveryJulian Wiedmann3-75/+20
When resetting an interface ("recovery"), qeth currently attempts to elide the call to dev_close(). We initially only call .ndo_close to quiesce the data path, and then offline & online the ccwgroup device. If the reset succeeded, a call to .ndo_open then resumes the data path along with some internal setup (dev_addr validation, RX modeset) that dev_open() would have usually triggered. dev_close() only gets called (via the close_dev worker) if the reset action fails. It's unclear whether this was initially done due to locking concerns, or rather to execute the reset transparently. Either way, temporarily closing the interface without dev_close() is fragile, and means we're susceptible to various races and unexpected behaviour. For instance: - Bypassing dev_deactivate_many() means that the qdiscs are not set to __QDISC_STATE_DEACTIVATED. Consequently any intermittent TX completion can wake up the txq, resulting in calls to .ndo_start_xmit while the data path is down. We have custom state checking to detect this case and drop such packets. - Because the IFF_UP flag doesn't reflect the interface's actual state during a reset, we have custom state checking in .ndo_open and .ndo_close to guard against invalid calls. - Considering that the reset might take a considerable amount of time (in particular if an IO fails and we end up waiting for its timeout), we _do_ want NETDEV_GOING_DOWN and NETDEV_DOWN events so that components like bonding, team, bridge, macvlan, vlan, ... can take appropriate action. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28s390/qeth: unconditionally clear MAC_REGISTERED flagJulian Wiedmann2-2/+1
In its attempt to run only the minimal amount of tear down steps, qeth_l2_stop_card() fails to reset the "is dev_addr registered?" flag in some rare scenarios. But a future change to the tear down sequence would cause us to _always_ hit this issue, so patch it up before that code lands. Fix it by unconditionally clearing the flag bit. This also allows us to remove the additional cleanup step in qeth_dev_layer2_store(). Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28s390/qeth: enable/disable the HW trap a little earlierJulian Wiedmann2-14/+17
When setting a L2 qeth device online, enable the HW trap as soon as the control plane is available. This allows us to catch any error that occurs during the very first commands. In the same spirit, the offline code should disable the HW trap as the very first step of its processing. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28s390/qeth: remove RECOVER stateJulian Wiedmann6-47/+25
The offline code uses a specific RECOVER state to indicate that the interface should be brought up when a qeth device is set online again. Rather than having a specific card-state for this, just put it in an internal flag bit and set the state to DOWN. When working with the card's state transitions, this reduces the complexity quite a bit. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28net/smc: allow pnetid-less configurationUrsula Braun1-1/+41
Without hardware pnetid support there must currently be a pnet table configured to determine the IB device port to be used for SMC RDMA traffic. This patch enables a setup without pnet table, if the used handshake interface belongs already to a RoCE port. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28net: sched: pie: avoid slow division in drop probability decayLeslie Monis1-1/+2
As per RFC 8033, it is sufficient for the drop probability decay factor to have a value of (1 - 1/64) instead of 98%. This avoids the need to do slow division. Suggested-by: David Laight <David.Laight@aculab.com> Signed-off-by: Leslie Monis <lesliemonis@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28cxgb4vf: Enter debugging mode if FW is inaccessibleArjun Vynipadath2-13/+33
If we are not able to reach firmware, enter debugging mode that will help us to get adapter logs. Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28cxgb4: Enable outer UDP checksum offload for T6Arjun Vynipadath1-0/+2
T6 adapters support outer UDP checksum offload for encapsulated packets, hence enabling netdev feature flag NETIF_F_GSO_UDP_TUNNEL_CSUM. Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-28cxgb4/cxgb4vf: Fix up netdev->hw_featuresArjun Vynipadath2-10/+9
GRO is done by cxgb4/cxgb4vf. Hence set NETIF_F_GRO flag for both cxgb4/cxgb4vf. Cleaned up VLAN netdev features in cxgb4vf. Also fixed NETIF_F_HIGHDMA being set unconditionally for vlan netdev features. Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-27net: sched: act_csum: Fix csum calc for tagged packetsEli Britstein1-2/+29
The csum calculation is different for IPv4/6. For VLAN packets, tc_skb_protocol returns the VLAN protocol rather than the packet's one (e.g. IPv4/6), so csum is not calculated. Furthermore, VLAN may not be stripped so csum is not calculated in this case too. Calculate the csum for those cases. Fixes: d8b9605d2697 ("net: sched: fix skb->protocol use in case of accelerated vlan path") Signed-off-by: Eli Britstein <elibr@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-27net: hns: use struct_size() in devm_kzalloc()Gustavo A. R. Silva1-2/+3
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; instance = devm_kzalloc(dev, sizeof(struct foo) + sizeof(struct boo) * count, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = devm_kzalloc(dev, struct_size(instance, entry, count), GFP_KERNEL); This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-27net: phy: marvell10g: Use the generic C45 helper to read the 2110 featuresMaxime Chevallier1-1/+1
Contrary to the 3310, the 2110 PHY correctly reports it's 2.5G/5G abilities. We can therefore use the genphy_c45_pma_read_abilities helper to build the list of features. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-27net: phy: marvell10g: Let genphy_c45_pma_read_abilities set Aneg bitMaxime Chevallier1-10/+0
The genphy_c45_pma_read_abilities helper now sets the Autoneg ability in phydev->supported according to what the AN MMD reports. We therefore don't need to manually do that in mv3310_get_features(). Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Suggested-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-27net: sched: act_tunnel_key: fix metadata handlingVlad Buslov1-9/+9
Tunnel key action params->tcft_enc_metadata is only set when action is TCA_TUNNEL_KEY_ACT_SET. However, metadata pointer is incorrectly dereferenced during tunnel key init and release without verifying that action is if correct type, which causes NULL pointer dereference. Metadata tunnel dst_cache is also leaked on action overwrite. Fix metadata handling: - Verify that metadata pointer is not NULL before dereferencing it in tunnel_key_init error handling code. - Move dst_cache destroy code into tunnel_key_release_params() function that is called in both action overwrite and release cases (fixes resource leak) and verifies that actions has correct type before dereferencing metadata pointer (fixes NULL pointer dereference). Oops with KASAN enabled during tdc tests execution: [ 261.080482] ================================================================== [ 261.088049] BUG: KASAN: null-ptr-deref in dst_cache_destroy+0x21/0xa0 [ 261.094613] Read of size 8 at addr 00000000000000b0 by task tc/2976 [ 261.102524] CPU: 14 PID: 2976 Comm: tc Not tainted 5.0.0-rc7+ #157 [ 261.108844] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [ 261.116726] Call Trace: [ 261.119234] dump_stack+0x9a/0xeb [ 261.122625] ? dst_cache_destroy+0x21/0xa0 [ 261.126818] ? dst_cache_destroy+0x21/0xa0 [ 261.131004] kasan_report+0x176/0x192 [ 261.134752] ? idr_get_next+0xd0/0x120 [ 261.138578] ? dst_cache_destroy+0x21/0xa0 [ 261.142768] dst_cache_destroy+0x21/0xa0 [ 261.146799] tunnel_key_release+0x3a/0x50 [act_tunnel_key] [ 261.152392] tcf_action_cleanup+0x2c/0xc0 [ 261.156490] tcf_generic_walker+0x4c2/0x5c0 [ 261.160794] ? tcf_action_dump_1+0x390/0x390 [ 261.165163] ? tunnel_key_walker+0x5/0x1a0 [act_tunnel_key] [ 261.170865] ? tunnel_key_walker+0xe9/0x1a0 [act_tunnel_key] [ 261.176641] tca_action_gd+0x600/0xa40 [ 261.180482] ? tca_get_fill.constprop.17+0x200/0x200 [ 261.185548] ? __lock_acquire+0x588/0x1d20 [ 261.189741] ? __lock_acquire+0x588/0x1d20 [ 261.193922] ? mark_held_locks+0x90/0x90 [ 261.197944] ? mark_held_locks+0x90/0x90 [ 261.202018] ? __nla_parse+0xfe/0x190 [ 261.205774] tc_ctl_action+0x218/0x230 [ 261.209614] ? tcf_action_add+0x230/0x230 [ 261.213726] rtnetlink_rcv_msg+0x3a5/0x600 [ 261.217910] ? lock_downgrade+0x2d0/0x2d0 [ 261.222006] ? validate_linkmsg+0x400/0x400 [ 261.226278] ? find_held_lock+0x6d/0xd0 [ 261.230200] ? match_held_lock+0x1b/0x210 [ 261.234296] ? validate_linkmsg+0x400/0x400 [ 261.238567] netlink_rcv_skb+0xc7/0x1f0 [ 261.242489] ? netlink_ack+0x470/0x470 [ 261.246319] ? netlink_deliver_tap+0x1f3/0x5a0 [ 261.250874] netlink_unicast+0x2ae/0x350 [ 261.254884] ? netlink_attachskb+0x340/0x340 [ 261.261647] ? _copy_from_iter_full+0xdd/0x380 [ 261.268576] ? __virt_addr_valid+0xb6/0xf0 [ 261.275227] ? __check_object_size+0x159/0x240 [ 261.282184] netlink_sendmsg+0x4d3/0x630 [ 261.288572] ? netlink_unicast+0x350/0x350 [ 261.295132] ? netlink_unicast+0x350/0x350 [ 261.301608] sock_sendmsg+0x6d/0x80 [ 261.307467] ___sys_sendmsg+0x48e/0x540 [ 261.313633] ? copy_msghdr_from_user+0x210/0x210 [ 261.320545] ? save_stack+0x89/0xb0 [ 261.326289] ? __lock_acquire+0x588/0x1d20 [ 261.332605] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 261.340063] ? mark_held_locks+0x90/0x90 [ 261.346162] ? do_filp_open+0x138/0x1d0 [ 261.352108] ? may_open_dev+0x50/0x50 [ 261.357897] ? match_held_lock+0x1b/0x210 [ 261.364016] ? __fget_light+0xa6/0xe0 [ 261.369840] ? __sys_sendmsg+0xd2/0x150 [ 261.375814] __sys_sendmsg+0xd2/0x150 [ 261.381610] ? __ia32_sys_shutdown+0x30/0x30 [ 261.388026] ? lock_downgrade+0x2d0/0x2d0 [ 261.394182] ? mark_held_locks+0x1c/0x90 [ 261.400230] ? do_syscall_64+0x1e/0x280 [ 261.406172] do_syscall_64+0x78/0x280 [ 261.411932] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 261.419103] RIP: 0033:0x7f28e91a8b87 [ 261.424791] Code: 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 80 00 00 00 00 8b 05 6a 2b 2c 00 48 63 d2 48 63 ff 85 c0 75 18 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 f3 c3 0f 1f 80 00 00 00 00 53 48 89 f3 48 [ 261.448226] RSP: 002b:00007ffdc5c4e2d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 261.458183] RAX: ffffffffffffffda RBX: 000000005c73c202 RCX: 00007f28e91a8b87 [ 261.467728] RDX: 0000000000000000 RSI: 00007ffdc5c4e340 RDI: 0000000000000003 [ 261.477342] RBP: 0000000000000000 R08: 0000000000000001 R09: 000000000000000c [ 261.486970] R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000001 [ 261.496599] R13: 000000000067b4e0 R14: 00007ffdc5c5248c R15: 00007ffdc5c52480 [ 261.506281] ================================================================== [ 261.516076] Disabling lock debugging due to kernel taint [ 261.523979] BUG: unable to handle kernel NULL pointer dereference at 00000000000000b0 [ 261.534413] #PF error: [normal kernel read fault] [ 261.541730] PGD 8000000317400067 P4D 8000000317400067 PUD 316878067 PMD 0 [ 261.551294] Oops: 0000 [#1] SMP KASAN PTI [ 261.557985] CPU: 14 PID: 2976 Comm: tc Tainted: G B 5.0.0-rc7+ #157 [ 261.568306] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [ 261.578874] RIP: 0010:dst_cache_destroy+0x21/0xa0 [ 261.586413] Code: f4 ff ff ff eb f6 0f 1f 00 0f 1f 44 00 00 41 56 41 55 49 c7 c6 60 fe 35 af 41 54 55 49 89 fc 53 bd ff ff ff ff e8 ef 98 73 ff <49> 83 3c 24 00 75 35 eb 6c 4c 63 ed e8 de 98 73 ff 4a 8d 3c ed 40 [ 261.611247] RSP: 0018:ffff888316447160 EFLAGS: 00010282 [ 261.619564] RAX: 0000000000000000 RBX: ffff88835b3e2f00 RCX: ffffffffad1c5071 [ 261.629862] RDX: 0000000000000003 RSI: dffffc0000000000 RDI: 0000000000000297 [ 261.640149] RBP: 00000000ffffffff R08: fffffbfff5dd4e89 R09: fffffbfff5dd4e89 [ 261.650467] R10: 0000000000000001 R11: fffffbfff5dd4e88 R12: 00000000000000b0 [ 261.660785] R13: ffff8883267a10c0 R14: ffffffffaf35fe60 R15: 0000000000000001 [ 261.671110] FS: 00007f28ea3e6400(0000) GS:ffff888364200000(0000) knlGS:0000000000000000 [ 261.682447] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 261.691491] CR2: 00000000000000b0 CR3: 00000003178ae004 CR4: 00000000001606e0 [ 261.701283] Call Trace: [ 261.706374] tunnel_key_release+0x3a/0x50 [act_tunnel_key] [ 261.714522] tcf_action_cleanup+0x2c/0xc0 [ 261.721208] tcf_generic_walker+0x4c2/0x5c0 [ 261.728074] ? tcf_action_dump_1+0x390/0x390 [ 261.734996] ? tunnel_key_walker+0x5/0x1a0 [act_tunnel_key] [ 261.743247] ? tunnel_key_walker+0xe9/0x1a0 [act_tunnel_key] [ 261.751557] tca_action_gd+0x600/0xa40 [ 261.757991] ? tca_get_fill.constprop.17+0x200/0x200 [ 261.765644] ? __lock_acquire+0x588/0x1d20 [ 261.772461] ? __lock_acquire+0x588/0x1d20 [ 261.779266] ? mark_held_locks+0x90/0x90 [ 261.785880] ? mark_held_locks+0x90/0x90 [ 261.792470] ? __nla_parse+0xfe/0x190 [ 261.798738] tc_ctl_action+0x218/0x230 [ 261.805145] ? tcf_action_add+0x230/0x230 [ 261.811760] rtnetlink_rcv_msg+0x3a5/0x600 [ 261.818564] ? lock_downgrade+0x2d0/0x2d0 [ 261.825433] ? validate_linkmsg+0x400/0x400 [ 261.832256] ? find_held_lock+0x6d/0xd0 [ 261.838624] ? match_held_lock+0x1b/0x210 [ 261.845142] ? validate_linkmsg+0x400/0x400 [ 261.851729] netlink_rcv_skb+0xc7/0x1f0 [ 261.857976] ? netlink_ack+0x470/0x470 [ 261.864132] ? netlink_deliver_tap+0x1f3/0x5a0 [ 261.870969] netlink_unicast+0x2ae/0x350 [ 261.877294] ? netlink_attachskb+0x340/0x340 [ 261.883962] ? _copy_from_iter_full+0xdd/0x380 [ 261.890750] ? __virt_addr_valid+0xb6/0xf0 [ 261.897188] ? __check_object_size+0x159/0x240 [ 261.903928] netlink_sendmsg+0x4d3/0x630 [ 261.910112] ? netlink_unicast+0x350/0x350 [ 261.916410] ? netlink_unicast+0x350/0x350 [ 261.922656] sock_sendmsg+0x6d/0x80 [ 261.928257] ___sys_sendmsg+0x48e/0x540 [ 261.934183] ? copy_msghdr_from_user+0x210/0x210 [ 261.940865] ? save_stack+0x89/0xb0 [ 261.946355] ? __lock_acquire+0x588/0x1d20 [ 261.952358] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 261.959468] ? mark_held_locks+0x90/0x90 [ 261.965248] ? do_filp_open+0x138/0x1d0 [ 261.970910] ? may_open_dev+0x50/0x50 [ 261.976386] ? match_held_lock+0x1b/0x210 [ 261.982210] ? __fget_light+0xa6/0xe0 [ 261.987648] ? __sys_sendmsg+0xd2/0x150 [ 261.993263] __sys_sendmsg+0xd2/0x150 [ 261.998613] ? __ia32_sys_shutdown+0x30/0x30 [ 262.004555] ? lock_downgrade+0x2d0/0x2d0 [ 262.010236] ? mark_held_locks+0x1c/0x90 [ 262.015758] ? do_syscall_64+0x1e/0x280 [ 262.021234] do_syscall_64+0x78/0x280 [ 262.026500] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 262.033207] RIP: 0033:0x7f28e91a8b87 [ 262.038421] Code: 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 80 00 00 00 00 8b 05 6a 2b 2c 00 48 63 d2 48 63 ff 85 c0 75 18 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 59 f3 c3 0f 1f 80 00 00 00 00 53 48 89 f3 48 [ 262.060708] RSP: 002b:00007ffdc5c4e2d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 262.070112] RAX: ffffffffffffffda RBX: 000000005c73c202 RCX: 00007f28e91a8b87 [ 262.079087] RDX: 0000000000000000 RSI: 00007ffdc5c4e340 RDI: 0000000000000003 [ 262.088122] RBP: 0000000000000000 R08: 0000000000000001 R09: 000000000000000c [ 262.097157] R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000001 [ 262.106207] R13: 000000000067b4e0 R14: 00007ffdc5c5248c R15: 00007ffdc5c52480 [ 262.115271] Modules linked in: act_tunnel_key act_skbmod act_simple act_connmark nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_csum libcrc32c act_meta_skbtcindex act_meta_skbprio act_meta_mark act_ife ife act_police act_sample psample act_gact veth nfsv3 nfs_acl nfs lockd grace fscache bridge stp llc intel_rapl sb_edac mlx5_ib x86_pkg_temp_thermal sunrpc intel_powerclamp coretemp ib_uverbs kvm_intel ib_core kvm irqbypass mlx5_core crct10dif_pclmul crc32_pclmul crc32c_intel igb ghash_clmulni_intel intel_cstate mlxfw iTCO_wdt devlink intel_uncore iTCO_vendor_support ipmi_ssif ptp mei_me intel_rapl_perf ioatdma joydev pps_core ses mei i2c_i801 pcspkr enclosure lpc_ich dca wmi ipmi_si ipmi_devintf ipmi_msghandler acpi_pad acpi_power_meter pcc_cpufreq ast i2c_algo_bit drm_kms_helper ttm drm mpt3sas raid_class scsi_transport_sas [ 262.204393] CR2: 00000000000000b0 [ 262.210390] ---[ end trace 2e41d786f2c7901a ]--- [ 262.226790] RIP: 0010:dst_cache_destroy+0x21/0xa0 [ 262.234083] Code: f4 ff ff ff eb f6 0f 1f 00 0f 1f 44 00 00 41 56 41 55 49 c7 c6 60 fe 35 af 41 54 55 49 89 fc 53 bd ff ff ff ff e8 ef 98 73 ff <49> 83 3c 24 00 75 35 eb 6c 4c 63 ed e8 de 98 73 ff 4a 8d 3c ed 40 [ 262.258311] RSP: 0018:ffff888316447160 EFLAGS: 00010282 [ 262.266304] RAX: 0000000000000000 RBX: ffff88835b3e2f00 RCX: ffffffffad1c5071 [ 262.276251] RDX: 0000000000000003 RSI: dffffc0000000000 RDI: 0000000000000297 [ 262.286208] RBP: 00000000ffffffff R08: fffffbfff5dd4e89 R09: fffffbfff5dd4e89 [ 262.296183] R10: 0000000000000001 R11: fffffbfff5dd4e88 R12: 00000000000000b0 [ 262.306157] R13: ffff8883267a10c0 R14: ffffffffaf35fe60 R15: 0000000000000001 [ 262.316139] FS: 00007f28ea3e6400(0000) GS:ffff888364200000(0000) knlGS:0000000000000000 [ 262.327146] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 262.335815] CR2: 00000000000000b0 CR3: 00000003178ae004 CR4: 00000000001606e0 Fixes: 41411e2fd6b8 ("net/sched: act_tunnel_key: Add dst_cache support") Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-27drivers: net: phy: mdio-mux: Add support for Generic Mux controlsPankaj Bansal3-0/+135
Add support for Generic Mux controls, when Mdio mux node is a consumer of mux produced by some other device. Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>