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2020-03-11bpf: Fix trampoline generation for fmod_ret programsAlexei Starovoitov1-26/+5
fmod_ret progs are emitted as: start = __bpf_prog_enter(); call fmod_ret *(u64 *)(rbp - 8) = rax __bpf_prog_exit(, start); test eax, eax jne do_fexit That 'test eax, eax' is working by accident. The compiler is free to use rax inside __bpf_prog_exit() or inside functions that __bpf_prog_exit() is calling. Which caused "test_progs -t modify_return" to sporadically fail depending on compiler version and kconfig. Fix it by using 'cmp [rbp - 8], 0' instead of 'test eax, eax'. Fixes: ae24082331d9 ("bpf: Introduce BPF_MODIFY_RETURN") Reported-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Acked-by: KP Singh <kpsingh@google.com> Link: https://lore.kernel.org/bpf/20200311003906.3643037-1-ast@kernel.org
2020-03-11bpf: Add bpf_link_new_file that doesn't install FDAndrii Nakryiko2-34/+91
Add bpf_link_new_file() API for cases when we need to ensure anon_inode is successfully created before we proceed with expensive BPF program attachment procedure, which will require equally (if not more so) expensive and potentially failing compensation detachment procedure just because anon_inode creation failed. This API allows to simplify code by ensuring first that anon_inode is created and after BPF program is attached proceed with fd_install() that can't fail. After anon_inode file is created, link can't be just kfree()'d anymore, because its destruction will be performed by deferred file_operations->release call. For this, bpf_link API required specifying two separate operations: release() and dealloc(), former performing detachment only, while the latter frees memory used by bpf_link itself. dealloc() needs to be specified, because struct bpf_link is frequently embedded into link type-specific container struct (e.g., struct bpf_raw_tp_link), so bpf_link itself doesn't know how to properly free the memory. In case when anon_inode file was successfully created, but subsequent BPF attachment failed, bpf_link needs to be marked as "defunct", so that file's release() callback will perform only memory deallocation, but no detachment. Convert raw tracepoint and tracing attachment to new API and eliminate detachment from error handling path. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200309231051.1270337-1-andriin@fb.com
2020-03-11mac80211: Do not send mesh HWMP PREQ if HWMP is disabledNicolas Cavallari1-1/+2
When trying to transmit to an unknown destination, the mesh code would unconditionally transmit a HWMP PREQ even if HWMP is not the current path selection algorithm. Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr> Link: https://lore.kernel.org/r/20200305140409.12204-1-cavallar@lri.fr Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-11nl80211: add missing attribute validation for channel switchJakub Kicinski1-0/+1
Add missing attribute validation for NL80211_ATTR_OPER_CLASS to the netlink policy. Fixes: 1057d35ede5d ("cfg80211: introduce TDLS channel switch commands") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20200303051058.4089398-4-kuba@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-11nl80211: add missing attribute validation for beacon report scanningJakub Kicinski1-0/+2
Add missing attribute validation for beacon report scanning to the netlink policy. Fixes: 1d76250bd34a ("nl80211: support beacon report scanning") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20200303051058.4089398-3-kuba@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-11nl80211: add missing attribute validation for critical protocol indicationJakub Kicinski1-0/+2
Add missing attribute validation for critical protocol fields to the netlink policy. Fixes: 5de17984898c ("cfg80211: introduce critical protocol indication from user-space") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/r/20200303051058.4089398-2-kuba@kernel.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-11Merge branch 'ethtool-consolidate-irq-coalescing-part-3'David S. Miller16-18/+58
Jakub Kicinski says: ==================== ethtool: consolidate irq coalescing - part 3 Convert more drivers following the groundwork laid in a recent patch set [1] and continued in [2]. The aim of the effort is to consolidate irq coalescing parameter validation in the core. This set converts 15 drivers in drivers/net/ethernet. 3 more conversion sets to come. None of the drivers here checked all unsupported parameters. [1] https://lore.kernel.org/netdev/20200305051542.991898-1-kuba@kernel.org/ [2] https://lore.kernel.org/netdev/20200306010602.1620354-1-kuba@kernel.org/ ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: gemini: reject unsupported coalescing paramsJakub Kicinski1-0/+2
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: cxgb4vf: reject unsupported coalescing paramsJakub Kicinski1-0/+2
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: cxgb4: reject unsupported coalescing paramsJakub Kicinski1-0/+4
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: cxgb3: reject unsupported coalescing paramsJakub Kicinski1-0/+1
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: cxgb2: reject unsupported coalescing paramsJakub Kicinski1-0/+3
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: mlx4: reject unsupported coalescing paramsJakub Kicinski1-0/+4
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: liquidio: reject unsupported coalescing paramsJakub Kicinski2-0/+16
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: bna: reject unsupported coalescing paramsJakub Kicinski1-0/+3
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: tg3: reject unsupported coalescing paramsJakub Kicinski1-0/+5
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: bcmgenet: reject unsupported coalescing paramsJakub Kicinski1-4/+3
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject all unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: bnx2x: reject unsupported coalescing paramsJakub Kicinski1-0/+1
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: bnx2: reject unsupported coalescing paramsJakub Kicinski1-0/+5
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: systemport: reject unsupported coalescing paramsJakub Kicinski1-2/+4
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject most of unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: aquantia: reject all unsupported coalescing paramsJakub Kicinski1-12/+3
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver only rejected some of the unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: ena: reject unsupported coalescing paramsJakub Kicinski1-0/+2
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Sameeh Jubran <sameehj@amazon.com> Acked-by: Sameeh Jubran <sameehj@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11r8169: simplify getting stats by using netdev_stats_to_stats64Heiner Kallweit1-8/+2
Let netdev_stats_to_stats64() do the copy work for us. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11r8169: let rtl8169_mark_to_asic clear rx descriptor field opts2Heiner Kallweit1-1/+1
Clearing opts2 belongs to preparing the descriptor for DMA engine use. Therefore move it into rtl8169_mark_to_asic(). Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11Merge branch '100GbE' of ↵David S. Miller16-398/+396
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 100GbE Intel Wired LAN Driver Updates 2020-03-10 This series contains updates to ice and iavf drivers. Cleaned up unnecessary parenthesis, which was pointed out by Sergei Shtylyov. Mitch updates the iavf and ice drivers to expand the limitation on the number of queues that the driver can support to account for the newer 800-series capabilities. Brett cleans up the error messages for both SR-IOV and non SR-IOV use cases. Fixed the logic when the ice driver is removed and a bare-metal VF is passing traffic, which was causing a transmit hang on the VF. Updated the ice driver to display "Link detected" field via ethtool, when the driver is in safe mode. Updated ice driver to properly set VLAN pruning when transmit anti-spoof is off. Avinash fixed a corner case in DCB, when switching from IEEE to CEE mode, the DCBX mode does not get properly updated. Dave updates the logic when switching from software DCB to firmware DCB to renegotiate DCBX to ensure the firmware agent has up to date information about the DCB settings of the link partner. Lukasz increases the PF's mailbox receive queue size to the maximum to prevent potential bottleneck or slow down occurring from the PF's mailbox receive queue being full. Bruce updates the ice driver to use strscpy() instead of strlcpy(). Cleaned up variable names that were not very descriptive with names that had more meaning. Anirudh replaces the use of ENOTSUPP with EOPNOTSUPP in the ice driver. Jake fixed up a function header comment to properly reflect the variable size and use. v2: Dropped patch 5 of the original series, where Tony added tunnel offload support. Based on community feedback, the patch needed changes, so giving Tony additional time to work on those changes and not hold up the remaining changes in the series. ==================== Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: dsa: mt7530: fix macro MIRROR_PORTDENG Qingfang1-1/+1
The inner pair of parentheses should be around the variable x Fixes: 37feab6076aa ("net: dsa: mt7530: add support for port mirroring") Signed-off-by: DENG Qingfang <dqfext@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: dsa: microchip: use delayed_work instead of timer + workGeorge McCollister2-20/+9
Simplify ksz_common.c by using delayed_work instead of a combination of timer and work. Signed-off-by: George McCollister <george.mccollister@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11Merge branch 's390-qeth-fixes'David S. Miller3-6/+11
Julian Wiedmann says: ==================== s390/qeth: fixes 2020-03-10 This fixes three minor issues: 1) a setup parameter gets cleared unnecessarily when the HW config changes, 2) insufficient error handling when initially filling the RX ring, and 3) a rarely used worker that needs to be cancelled during tear down. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11s390/qeth: cancel RX reclaim work earlierJulian Wiedmann3-1/+2
When qeth's napi poll code fails to refill an entirely empty RX ring, it kicks off buffer_reclaim_work to try again later. Make sure that this worker is cancelled when setting the qeth device offline. Otherwise a RX refill action can unexpectedly end up running concurrently to bigger re-configurations (eg. resizing the buffer pool), without any locking. Fixes: b333293058aa ("qeth: add support for af_iucv HiperSockets transport") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11s390/qeth: handle error when backing RX bufferJulian Wiedmann1-4/+9
qeth_init_qdio_queues() fills the RX ring with an initial set of RX buffers. If qeth_init_input_buffer() fails to back one of the RX buffers with memory, we need to bail out and report the error. Fixes: 4a71df50047f ("qeth: new qeth device driver") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11s390/qeth: don't reset default_out_queueJulian Wiedmann1-1/+0
When an OSA device in prio-queue setup is reduced to 1 TX queue due to HW restrictions, we reset its the default_out_queue to 0. In the old code this was needed so that qeth_get_priority_queue() gets the queue selection right. But with proper multiqueue support we already reduced dev->real_num_tx_queues to 1, and so the stack puts all traffic on txq 0 without even calling .ndo_select_queue. Thus we can preserve the user's configuration, and apply it if the OSA device later re-gains support for multiple TX queues. Fixes: 73dc2daf110f ("s390/qeth: add TX multiqueue support for OSA devices") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11Merge branch 'flow_offload-follow-ups-to-HW-stats-type-patchset'David S. Miller2-15/+35
Jiri Pirko says: ==================== flow_offload: follow-ups to HW stats type patchset This patchset includes couple of patches in reaction to the discussions to the original HW stats patchset. The first patch is a fix, the other two patches are basically cosmetics. ==================== Acked-by: Edward Cree <ecree@solarflare.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11flow_offload: restrict driver to pass one allowed bit to ↵Jiri Pirko2-9/+19
flow_action_hw_stats_types_check() The intention of this helper was to allow driver to specify one type that it supports, so not only "any" value would pass. So make the API more strict and allow driver to pass only 1 bit that is going to be checked. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11flow_offload: turn hw_stats_type into dedicated enumJiri Pirko1-6/+16
Put the values into enum and add an enum to define the bits. Suggested-by: Edward Cree <ecree@solarflare.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11flow_offload: fix allowed types checkJiri Pirko1-1/+1
Change the check to see if the passed allowed type bit is enabled. Fixes: 319a1d19471e ("flow_offload: check for basic action hw stats type") Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11Merge branch 'MACSec-bugfixes-related-to-MAC-address-change'David S. Miller1-5/+19
Igor Russkikh says: ==================== MACSec bugfixes related to MAC address change We found out that there's an issue in MACSec code when the MAC address is changed. Both s/w and offloaded implementations don't update SCI when the MAC address changes at the moment, but they should do so, because SCI contains MAC in its first 6 octets. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: macsec: invoke mdo_upd_secy callback when mac address changedDmitry Bogdanov1-0/+13
Notify the offload engine about MAC address change to reconfigure it accordingly. Fixes: 3cf3227a21d1 ("net: macsec: hardware offloading infrastructure") Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com> Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net: macsec: update SCI upon MAC address change.Dmitry Bogdanov1-5/+6
SCI should be updated, because it contains MAC in its first 6 octets. Fixes: c09440f7dcb3 ("macsec: introduce IEEE 802.1AE driver") Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com> Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11ibmvnic: Do not process device remove during device resetJuliet Kim2-3/+27
The ibmvnic driver does not check the device state when the device is removed. If the device is removed while a device reset is being processed, the remove may free structures needed by the reset, causing an oops. Fix this by checking the device state before processing device remove. Signed-off-by: Juliet Kim <julietk@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11Merge branch 'enetc-Support-extended-BD-rings-at-runtime'David S. Miller6-61/+88
Claudiu Manoil says: ==================== enetc: Support extended BD rings at runtime First two patches are just misc code cleanup. The 3rd patch prepares the Rx BD processing code to be extended to processing both normal and extended BDs. The last one adds extended Rx BD support for timestamping without the need of a static config. Finally, the config option FSL_ENETC_HW_TIMESTAMPING can be dropped. Care was taken not to impact non-timestamping usecases. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11enetc: Add dynamic allocation of extended Rx BD ringsClaudiu Manoil5-30/+48
Hardware timestamping support (PTP) on Rx requires extended buffer descriptors, double the size of normal Rx descriptors. On the current controller revision only the timestamping offload requires extended Rx descriptors. Since Rx timestamping can be turned on/off at runtime, make Rx ring allocation configurable at runtime too. As a result, the static config option FSL_ENETC_HW_TIMESTAMPING can be dropped and the extended descriptors can be used only when Rx timestamping gets activated. The extension has the same size as the base descriptor, making the descriptor iterators easy to update for the extended case. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11enetc: Clean up Rx BD iterationClaudiu Manoil2-20/+28
Improve maintainability of the code iterating the Rx buffer descriptors to prepare it to support iterating extended Rx BD descriptors as well. Don't increment by one the h/w descriptor pointers explicitly, provide an iterator that takes care of the h/w details. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11enetc: Clean up of ehtool stats lenClaudiu Manoil1-7/+13
Refactor the stats len computation code to make it easier to add new stats counters. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11enetc: Drop redundant device node checkClaudiu Manoil1-5/+0
The existence of the DT port node is the first thing checked at probe time, and probing won't reach this point if the node is missing. Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11pktgen: Allow on loopback deviceLukas Wunner1-2/+2
When pktgen is used to measure the performance of dev_queue_xmit() packet handling in the core, it is preferable to not hand down packets to a low-level Ethernet driver as it would distort the measurements. Allow using pktgen on the loopback device, thus constraining measurements to core code. Signed-off-by: Lukas Wunner <lukas@wunner.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11flow_offload: use flow_action_for_each in ↵Jiri Pirko1-5/+6
flow_action_mixed_hw_stats_types_check() Instead of manually iterating over entries, use flow_action_for_each helper. Move the helper and wrap it to fit to 80 cols on the way. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11net/smc: cancel event worker during device removalKarsten Graul1-0/+1
During IB device removal, cancel the event worker before the device structure is freed. Fixes: a4cf0443c414 ("smc: introduce SMC as an IB-client") Reported-by: syzbot+b297c6825752e7a07272@syzkaller.appspotmail.com Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interfaceHangbin Liu1-0/+4
Rafał found an issue that for non-Ethernet interface, if we down and up frequently, the memory will be consumed slowly. The reason is we add allnodes/allrouters addressed in multicast list in ipv6_add_dev(). When link down, we call ipv6_mc_down(), store all multicast addresses via mld_add_delrec(). But when link up, we don't call ipv6_mc_up() for non-Ethernet interface to remove the addresses. This makes idev->mc_tomb getting bigger and bigger. The call stack looks like: addrconf_notify(NETDEV_REGISTER) ipv6_add_dev ipv6_dev_mc_inc(ff01::1) ipv6_dev_mc_inc(ff02::1) ipv6_dev_mc_inc(ff02::2) addrconf_notify(NETDEV_UP) addrconf_dev_config /* Alas, we support only Ethernet autoconfiguration. */ return; addrconf_notify(NETDEV_DOWN) addrconf_ifdown ipv6_mc_down igmp6_group_dropped(ff02::2) mld_add_delrec(ff02::2) igmp6_group_dropped(ff02::1) igmp6_group_dropped(ff01::1) After investigating, I can't found a rule to disable multicast on non-Ethernet interface. In RFC2460, the link could be Ethernet, PPP, ATM, tunnels, etc. In IPv4, it doesn't check the dev type when calls ip_mc_up() in inetdev_event(). Even for IPv6, we don't check the dev type and call ipv6_add_dev(), ipv6_dev_mc_inc() after register device. So I think it's OK to fix this memory consumer by calling ipv6_mc_up() for non-Ethernet interface. v2: Also check IFF_MULTICAST flag to make sure the interface supports multicast Reported-by: Rafał Miłecki <zajec5@gmail.com> Tested-by: Rafał Miłecki <zajec5@gmail.com> Fixes: 74235a25c673 ("[IPV6] addrconf: Fix IPv6 on tuntap tunnels") Fixes: 1666d49e1d41 ("mld: do not remove mld souce list info when set link down") Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-11Merge tag 'clang-format-for-linus-v5.6-rc6' of git://github.com/ojeda/linuxLinus Torvalds1-4/+21
Pull clang-format update from Miguel Ojeda: "Another update for the .clang-format macro list It has been a while since the last time I sent one!" * tag 'clang-format-for-linus-v5.6-rc6' of git://github.com/ojeda/linux: clang-format: Update with the latest for_each macro list
2020-03-11net: memcg: late association of sock to memcgShakeel Butt3-15/+24
If a TCP socket is allocated in IRQ context or cloned from unassociated (i.e. not associated to a memcg) in IRQ context then it will remain unassociated for its whole life. Almost half of the TCPs created on the system are created in IRQ context, so, memory used by such sockets will not be accounted by the memcg. This issue is more widespread in cgroup v1 where network memory accounting is opt-in but it can happen in cgroup v2 if the source socket for the cloning was created in root memcg. To fix the issue, just do the association of the sockets at the accept() time in the process context and then force charge the memory buffer already used and reserved by the socket. Signed-off-by: Shakeel Butt <shakeelb@google.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.0) at 2025-09-28 10:07:32 +0300