- 28 Aug, 2020 1 commit
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David S. Miller authored
Merge tag 'mac80211-for-davem-2020-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== We have: * fixes for AQL (airtime queue limits) * reduce packet loss detection false positives * a small channel number fix for the 6 GHz band * a fix for 80+80/160 MHz negotiation * an nl80211 attribute (NL80211_ATTR_HE_6GHZ_CAPABILITY) fix * add a missing sanity check for the regulatory code ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 27 Aug, 2020 12 commits
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Dinghao Liu authored
Fix a memory leak in rxkad_verify_response() whereby the response buffer doesn't get freed if we fail to allocate a ticket buffer. Fixes: ef68622d ("rxrpc: Handle temporary errors better in rxkad security") Signed-off-by:
Dinghao Liu <dinghao.liu@zju.edu.cn> Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fsDavid S. Miller authored
David Howells says: ==================== rxrpc, afs: Fix probing issues Here are some fixes for rxrpc and afs to fix issues in the RTT measuring in rxrpc and thence the Volume Location server probing in afs: (1) Move the serial number of a received ACK into a local variable to simplify the next patch. (2) Fix the loss of RTT samples due to extra interposed ACKs causing baseline information to be discarded too early. This is a particular problem for afs when it sends a single very short call to probe a server it hasn't talked to recently. (3) Fix rxrpc_kernel_get_srtt() to indicate whether it actually has seen any valid samples or not. (4) Remove a field that's set/woken, but never read/waited on. (5) Expose the RTT and other probe information through procfs to make debugging of this stuff easier. (6) Fix VL rotation in afs to only use summary information from VL probing and not the probe running state (which gets clobbered when next a probe is issued). (7) Fix VL rotation to actually return the error aggregated from the probe errors. ==================== Signed-off-by: -
Murali Karicheri authored
This patch fixes a bunch of issues in cpsw_ndo_vlan_rx_kill_vid() - pm_runtime_get_sync() returns non zero value. This results in non zero value return to caller which will be interpreted as error. So overwrite ret with zero. - If VID matches with port VLAN VID, then set error code. - Currently when VLAN interface is deleted, all of the VLAN mc addresses are removed from ALE table, however the return values from ale function calls are not checked. These functions can return error code -ENOENT. But that shouldn't happen in a normal case. So add error print to catch the situations so that these can be investigated and addressed. return zero in these cases as these are not real error case, but only serve to catch ALE table update related issues and help address the same in the driver. Fixes: ed3525ed ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac") Signed-off-by:
Murali Karicheri <m-karicheri2@ti.com> Signed-off-by:
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Miaohe Lin authored
Fix some comments, including wrong function name, duplicated word and so on. Signed-off-by:
Miaohe Lin <linmiaohe@huawei.com> Signed-off-by:
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Himadri Pandya authored
The buffer size is 2 Bytes and we expect to receive the same amount of data. But sometimes we receive less data and run into uninit-was-stored issue upon read. Hence modify the error check on the return value to match with the buffer size as a prevention. Reported-and-tested by: syzbot+a7e220df5a81d1ab400e@syzkaller.appspotmail.com Signed-off-by:
Himadri Pandya <himadrispandya@gmail.com> Signed-off-by:
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Amar Singhal authored
Adjust the 6 GHz frequency to channel conversion function, the other way around was previously handled. Signed-off-by:
Amar Singhal <asinghal@codeaurora.org> Link: https://lore.kernel.org/r/1592599921-10607-1-git-send-email-asinghal@codeaurora.org [rewrite commit message, hard-code channel 2] Signed-off-by:
Johannes Berg <johannes.berg@intel.com>
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Felix Fietkau authored
When running a large number of packets per second with a high data rate and long A-MPDUs, the packet loss threshold can be reached very quickly when the link conditions change. This frequently shows up as spurious disconnects. Mitigate false positives by using a similar logic for regular stations as the one being used for TDLS, though with a more aggressive timeout. Packet loss events are only reported if no ACK was received for a second. Signed-off-by:
Felix Fietkau <nbd@nbd.name> Link: https://lore.kernel.org/r/20200808172542.41628-1-nbd@nbd.nameSigned-off-by:
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Johannes Berg authored
Reject invalid hints early in order to not cause a kernel WARN later if they're restored to or similar. Reported-by: syzbot+d451401ffd00a60677ee@syzkaller.appspotmail.com Link: https://syzkaller.appspot.com/bug?extid=d451401ffd00a60677ee Link: https://lore.kernel.org/r/20200819084648.13956-1-johannes@sipsolutions.netSigned-off-by:
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Shay Bar authored
Fix cfg80211_chandef_usable(): consider IEEE80211_VHT_CAP_EXT_NSS_BW when verifying 160/80+80 MHz. Based on: "Table 9-272 — Setting of the Supported Channel Width Set subfield and Extended NSS BW Support subfield at a STA transmitting the VHT Capabilities Information field" From "Draft P802.11REVmd_D3.0.pdf" Signed-off-by:
Aviad Brikman <aviad.brikman@celeno.com> Signed-off-by:
Shay Bar <shay.bar@celeno.com> Link: https://lore.kernel.org/r/20200826143139.25976-1-shay.bar@celeno.com [reformat the code a bit and use u32_get_bits()] Signed-off-by:
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Felix Fietkau authored
Links with low data rates use much smaller aggregates and are much more sensitive to latency added by bufferbloat. Tune the assumed aggregation length based on the tx rate duration. Signed-off-by:
Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/r/20200821163045.62140-3-nbd@nbd.nameSigned-off-by:
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Felix Fietkau authored
This will be used to enhance AQL estimated aggregation length Signed-off-by:
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Felix Fietkau authored
Since ieee80211_tx_info does not have enough room to encode HE rates, HE drivers use status->rate to provide rate info. Store it in struct sta_info and use it for AQL. Signed-off-by:
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- 26 Aug, 2020 20 commits
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David S. Miller authored
Jakub Kicinski says: ==================== net: fix netpoll crash with bnxt Rob run into crashes when using XDP on bnxt. Upon investigation it turns out that during driver reconfig irq core produces a warning message when IRQs are requested. This triggers netpoll, which in turn accesses uninitialized driver state. Same crash can also be triggered on this platform by changing the number of rings. Looks like we have two missing pieces here, netif_napi_add() has to make sure we start out with netpoll blocked. The driver also has to be more careful about when napi gets enabled. Tested XDP and channel count changes, the warning message no longer causes a crash. Not sure if the memory barriers added in patch 1 are necessary, but it seems we should have them. ==================== Signed-off-by: -
Jakub Kicinski authored
Netpoll can try to poll napi as soon as napi_enable() is called. It crashes trying to access a doorbell which is still NULL: BUG: kernel NULL pointer dereference, address: 0000000000000000 CPU: 59 PID: 6039 Comm: ethtool Kdump: loaded Tainted: G S 5.9.0-rc1-00469-g5fd99b5d-dirty #26 RIP: 0010:bnxt_poll+0x121/0x1c0 Code: c4 20 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 41 8b 86 a0 01 00 00 41 23 85 18 01 00 00 49 8b 96 a8 01 00 00 0d 00 00 00 24 <89> 02 41 f6 45 77 02 74 cb 49 8b ae d8 01 00 00 31 c0 c7 44 24 1a netpoll_poll_dev+0xbd/0x1a0 __netpoll_send_skb+0x1b2/0x210 netpoll_send_udp+0x2c9/0x406 write_ext_msg+0x1d7/0x1f0 console_unlock+0x23c/0x520 vprintk_emit+0xe0/0x1d0 printk+0x58/0x6f x86_vector_activate.cold+0xf/0x46 __irq_domain_activate_irq+0x50/0x80 __irq_domain_activate_irq+0x32/0x80 __irq_domain_activate_irq+0x32/0x80 irq_domain_activate_irq+0x25/0x40 __setup_irq+0x2d2/0x700 request_threaded_irq+0xfb/0x160 __bnxt_open_nic+0x3b1/0x750 bnxt_open_nic+0x19/0x30 ethtool_set_channels+0x1ac/0x220 dev_ethtool+0x11ba/0x2240 dev_ioctl+0x1cf/0x390 sock_do_ioctl+0x95/0x130 Reported-by:
Rob Sherwood <rsher@fb.com> Fixes: c0c050c5 ("bnxt_en: New Broadcom ethernet driver.") Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Reviewed-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Jakub Kicinski authored
napi_disable() makes sure to set the NAPI_STATE_NPSVC bit to prevent netpoll from accessing rings before init is complete. However, the same is not done for fresh napi instances in netif_napi_add(), even though we expect NAPI instances to be added as disabled. This causes crashes during driver reconfiguration (enabling XDP, changing the channel count) - if there is any printk() after netif_napi_add() but before napi_enable(). To ensure memory ordering is correct we need to use RCU accessors. Reported-by:
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Ido Schimmel authored
fib_info_notify_update() is always called with RTNL held, but not from an RCU read-side critical section. This leads to the following warning [1] when the FIB table list is traversed with hlist_for_each_entry_rcu(), but without a proper lockdep expression. Since modification of the list is protected by RTNL, silence the warning by adding a lockdep expression which verifies RTNL is held. [1] ============================= WARNING: suspicious RCU usage 5.9.0-rc1-custom-14233-g2f26e122d62f #129 Not tainted ----------------------------- net/ipv4/fib_trie.c:2124 RCU-list traversed in non-reader section!! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by ip/834: #0: ffffffff85a3b6b0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x49a/0xbd0 stack backtrace: CPU: 0 PID: 834 Comm: ip Not tainted 5.9.0-rc1-custom-14233-g2f26e122d62f #129 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-2.fc32 04/01/2014 Call Trace: dump_stack+0x100/0x184 lockdep_rcu_suspicious+0x143/0x14d fib_info_notify_update+0x8d1/0xa60 __nexthop_replace_notify+0xd2/0x290 rtm_new_nexthop+0x35e2/0x5946 rtnetlink_rcv_msg+0x4f7/0xbd0 netlink_rcv_skb+0x17a/0x480 rtnetlink_rcv+0x22/0x30 netlink_unicast+0x5ae/0x890 netlink_sendmsg+0x98a/0xf40 ____sys_sendmsg+0x879/0xa00 ___sys_sendmsg+0x122/0x190 __sys_sendmsg+0x103/0x1d0 __x64_sys_sendmsg+0x7d/0xb0 do_syscall_64+0x32/0x50 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7fde28c3be57 Code: 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 RSP: 002b:00007ffc09330028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fde28c3be57 RDX: 0000000000000000 RSI: 00007ffc09330090 RDI: 0000000000000003 RBP: 000000005f45f911 R08: 0000000000000001 R09: 00007ffc0933012c R10: 0000000000000076 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc09330290 R14: 00007ffc09330eee R15: 00005610e48ed020 Fixes: 1bff1a0c ("ipv4: Add function to send route updates") Signed-off-by:Ido Schimmel <idosch@nvidia.com> Reviewed-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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Xie He authored
Set the skb's network_header before it is passed to the underlying Ethernet device for transmission. This patch fixes the following issue: When we use this driver with AF_PACKET sockets, there would be error messages of: protocol 0805 is buggy, dev (Ethernet interface name) printed in the system "dmesg" log. This is because skbs passed down to the Ethernet device for transmission don't have their network_header properly set, and the dev_queue_xmit_nit function in net/core/dev.c complains about this. Reason of setting the network_header to this place (at the end of the Ethernet header, and at the beginning of the Ethernet payload): Because when this driver receives an skb from the Ethernet device, the network_header is also set at this place. Cc: Martin Schiller <ms@dev.tdt.de> Signed-off-by:
Xie He <xie.he.0141@gmail.com> Signed-off-by:
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Florian Westphal authored
After subflow lock is dropped, more wmem might have been made available. This fixes a deadlock in mptcp_connect.sh 'mmap' mode: wmem is exhausted. But as the mptcp socket holds on to already-acked data (for retransmit) no wakeup will occur. Using 'goto restart' calls mptcp_clean_una(sk) which will free pages that have been acked completely in the mean time. Fixes: fb529e62 ("mptcp: break and restart in case mptcp sndbuf is full") Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Vinicius Costa Gomes authored
Since commit 9c66d156 ("taprio: Add support for hardware offloading") there's a bit of inconsistency when offloading schedules to the hardware: In software mode, the gate masks are specified in terms of traffic classes, so if say "sched-entry S 03 20000", it means that the traffic classes 0 and 1 are open for 20us; when taprio is offloaded to hardware, the gate masks are specified in terms of hardware queues. The idea here is to fix hardware offloading, so schedules in hardware and software mode have the same behavior. What's needed to do is to map traffic classes to queues when applying the offload to the driver. Fixes: 9c66d156 ("taprio: Add support for hardware offloading") Signed-off-by:
Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by:
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YueHaibing authored
If USB_NET_CDC_NCM is y and USB_NET_CDCETHER is m, build fails: drivers/net/usb/cdc_ncm.o:(.rodata+0x1d8): undefined reference to `usbnet_cdc_update_filter' Select USB_NET_CDCETHER for USB_NET_CDC_NCM to fix this. Reported-by:
Hulk Robot <hulkci@huawei.com> Fixes: e10dcb1b ("net: cdc_ncm: hook into set_rx_mode to admit multicast traffic") Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
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Yi Li authored
when skb->encapsulation is 0, skb->ip_summed is CHECKSUM_PARTIAL and it is udp packet, which has a dest port as the IANA assigned. the hardware is expected to do the checksum offload, but the hardware will not do the checksum offload when udp dest port is 6081. This patch fixes it by doing the checksum in software. Reported-by:
Li Bing <libing@winhong.com> Signed-off-by:
Yi Li <yili@winhong.com> Signed-off-by:
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David S. Miller authored
Michael Chan says: ==================== bnxt_en: Bug fixes. This set of driver patches include bug fixes for ethtool get channels, ethtool statistics, ethtool NVRAM, AER recovery, a firmware reset issue that could potentially crash, hwmon temperature reporting issue on VF, and 2 fixes for regressions introduced by the recent user-defined RSS map feature. Please queue patches 1 to 6 for -stable. Thanks. ==================== Signed-off-by: -
Michael Chan authored
The recent changes to support user-defined RSS map assume that RX rings are always reserved and the default RSS map is set after the RX rings are successfully reserved. If the firmware spec is older than 1.6.1, no ring reservations are required and the default RSS map is not setup at all. In another scenario where the fw Resource Manager is older, RX rings are not reserved and we also end up with no valid RSS map. Fix both issues in bnxt_need_reserve_rings(). In both scenarios described above, we don't need to reserve RX rings so we need to call this new function bnxt_check_rss_map_no_rmgr() to setup the default RSS map when needed. Without valid RSS map, the NIC won't receive packets properly. Fixes: 1667cbf6 ("bnxt_en: Add logical RSS indirection table structure.") Reviewed-by:
Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by:
Edwin Peer <edwin.peer@broadcom.com> Signed-off-by:
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Edwin Peer authored
There are no VF rings available during probe when the device is configured using the Minimal-Static reservation strategy. In this case, the RSS indirection table can only be initialized later, during bnxt_open_nic(). However, this was not happening because the rings will already have been reserved via bnxt_init_dflt_ring_mode(), causing bnxt_need_reserve_rings() to return false in bnxt_reserve_rings() and bypass the RSS table init. Solve this by pushing the call to bnxt_set_dflt_rss_indir_tbl() into __bnxt_reserve_rings(), which is common to both paths and is called whenever ring configuration is changed. After doing this, the RSS table init that must be called from bnxt_init_one() happens implicitly via bnxt_set_default_rings(), necessitating doing the allocation earlier in order to avoid a null pointer dereference. Fixes: bd3191b5 ("bnxt_en: Implement ethtool -X to set indirection table.") Signed-off-by:
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Edwin Peer authored
Firmware returns RESOURCE_ACCESS_DENIED for HWRM_TEMP_MONITORY_QUERY for VFs. This produces unpleasing error messages in the log when temp1_input is queried via the hwmon sysfs interface from a VF. The error is harmless and expected, so silence it and return unknown as the value. Since the device temperature is not particularly sensitive information, provide flexibility to change this policy in future by silencing the error rather than avoiding the HWRM call entirely for VFs. Fixes: cde49a42 ("bnxt_en: Add hwmon sysfs support to read temperature") Cc: Marc Smith <msmith626@gmail.com> Reported-by:
Marc Smith <msmith626@gmail.com> Signed-off-by:
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Michael Chan authored
bnxt_fw_reset_task() is run from a delayed workqueue. The current code is not cancelling the workqueue in the driver's .remove() method and it can potentially crash if the device is removed with the workqueue still pending. The fix is to clear the BNXT_STATE_IN_FW_RESET flag and then cancel the delayed workqueue in bnxt_remove_one(). bnxt_queue_fw_reset_work() also needs to check that this flag is set before scheduling. This will guarantee that no rescheduling will be done after it is cancelled. Fixes: 230d1f0d ("bnxt_en: Handle firmware reset.") Reviewed-by:
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Vasundhara Volam authored
When a PCI error is detected the PCI state could be corrupt, save the PCI state after initialization and restore it after the slot reset. Fixes: 6316ea6d ("bnxt_en: Enable AER support.") Signed-off-by:
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Michael Chan authored
We are returning the wrong count for ETH_SS_STATS in get_sset_count() when XDP or TCs are enabled. In a recent commit, we got rid of irrelevant counters when the ring is RX only or TX only, but we did not make the proper adjustments for the count. As a result, when we have XDP or TCs enabled, we are returning an excess count because some of the rings are TX only. This causes ethtool -S to display extra counters with no counter names. Fix bnxt_get_num_ring_stats() by not assuming that all rings will always have RX and TX counters in combined mode. Fixes: 125592fb ("bnxt_en: show only relevant ethtool stats for a TX or RX ring") Reviewed-by:
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Vasundhara Volam authored
If firmware goes into unstable state, HWRM_NVM_GET_DIR_INFO firmware command may return zero dir entries. Return error in such case to avoid zero length dma buffer request. Fixes: c0c050c5 ("bnxt_en: New Broadcom ethernet driver.") Signed-off-by:
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Pavan Chebbi authored
In rare conditions like two stage OS installation, the ethtool's get_channels function may be called when the device is in D3 state, leading to uncorrectable PCI error. Check netif_running() first before making any query to FW which involves writing to BAR. Fixes: db4723b3 ("bnxt_en: Check max_tx_scheduler_inputs value from firmware.") Signed-off-by:
Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by:
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Daniel Gorsulowski authored
The RGMII control register at 0x32 indicates the states for the bits RGMII_TX_CLK_DELAY and RGMII_RX_CLK_DELAY as follows: RGMII Transmit/Receive Clock Delay 0x0 = RGMII transmit clock is shifted with respect to transmit/receive data. 0x1 = RGMII transmit clock is aligned with respect to transmit/receive data. This commit fixes the inversed behavior of these bits Fixes: 736b25af ("net: dp83869: Add RGMII internal delay configuration") Signed-off-by:Daniel Gorsulowski <daniel.gorsulowski@esd.eu> Acked-by:
Dan Murphy <dmurphy@ti.com> Signed-off-by:
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Mingming Cao authored
At the time of do_rest, ibmvnic tries to re-initalize the tx_pools and rx_pools to avoid re-allocating the long term buffer. However there is a window inside do_reset that the tx_pools and rx_pools were freed before re-initialized making it possible to deference null pointers. This patch fix this issue by always check the tx_pool and rx_pool are not NULL after ibmvnic_login. If so, re-allocating the pools. This will avoid getting into calling reset_tx/rx_pools with NULL adapter tx_pools/rx_pools pointer. Also add null pointer check in reset_tx_pools and reset_rx_pools to safe handle NULL pointer case. Signed-off-by:
Mingming Cao <mmc@linux.vnet.ibm.com> Signed-off-by:
Dany Madden <drt@linux.ibm.com> Signed-off-by:
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- 25 Aug, 2020 7 commits
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Murali Karicheri authored
To flush the vid + mc entries from ALE, which is required when a VLAN interface is removed, driver needs to call cpsw_ale_flush_multicast() with ALE_PORT_HOST for port mask as these entries are added only for host port. Without this, these entries remain in the ALE table even after removing the VLAN interface. cpsw_ale_flush_multicast() calls cpsw_ale_flush_mcast which expects a port mask to do the job. Fixes: ed3525ed ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac") Signed-off-by:
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Murali Karicheri authored
To flush the vid + mc entries from ALE, which is required when a VLAN interface is removed, driver needs to call cpsw_ale_flush_multicast() with ALE_PORT_HOST for port mask as these entries are added only for host port. Without this, these entries remain in the ALE table even after removing the VLAN interface. cpsw_ale_flush_multicast() calls cpsw_ale_flush_mcast which expects a port mask to do the job. Fixes: 15180eca ("net: ethernet: ti: cpsw: fix vlan mcast") Signed-off-by:
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Tong Zhang authored
cfpkt_peek_head return 0 and 1, caller is checking error using <0 Signed-off-by:
Tong Zhang <ztong0001@gmail.com> Signed-off-by:
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Sumera Priyadarsini authored
Every iteration of for_each_child_of_node() decrements the reference count of the previous node, however when control is transferred from the middle of the loop, as in the case of a return or break or goto, there is no decrement thus ultimately resulting in a memory leak. Fix a potential memory leak in mt7530.c by inserting of_node_put() before the break and return statements. Issue found with Coccinelle. Signed-off-by:
Sumera Priyadarsini <sylphrenadin@gmail.com> Signed-off-by:
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Nicolas Dichtel authored
During a dump, this attribute is essential, it enables the userspace to know on which interface the context is linked to. Fixes: 459aa660 ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)") Signed-off-by:
Nicolas Dichtel <nicolas.dichtel@6wind.com> Tested-by:
Gabriel Ganne <gabriel.ganne@6wind.com> Signed-off-by:
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Simon Wunderlich says: ==================== Here are some batman-adv bugfixes: - Avoid uninitialized memory access when handling DHCP, by Sven Eckelmann - Fix check for own OGM in OGM receive handler, by Linus Luessing - Fix netif_rx access for non-interrupt context in BLA, by Jussi Kivilinna ==================== Signed-off-by: -
Edward Cree authored
check_fcs() was returning bool as 0/1, which was a sign that the sense of the function was unclear: false was good, which doesn't really match a name like 'check_$thing'. So rename it to ef100_has_fcs_error(), and use proper booleans in the return statements. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
Edward Cree <ecree@solarflare.com> Signed-off-by:
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