1. 21 Jun, 2021 29 commits
  2. 19 Jun, 2021 2 commits
    • Jakub Kicinski's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · adc2e56e
      Jakub Kicinski authored
      Trivial conflicts in net/can/isotp.c and
      tools/testing/selftests/net/mptcp/mptcp_connect.sh
      
      scaled_ppm_to_ppb() was moved from drivers/ptp/ptp_clock.c
      to include/linux/ptp_clock_kernel.h in -next so re-apply
      the fix there.
      Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
      adc2e56e
    • Linus Torvalds's avatar
      Merge tag 'net-5.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net · 9ed13a17
      Linus Torvalds authored
      Pull networking fixes from Jakub Kicinski:
       "Networking fixes for 5.13-rc7, including fixes from wireless, bpf,
        bluetooth, netfilter and can.
      
        Current release - regressions:
      
         - mlxsw: spectrum_qdisc: Pass handle, not band number to find_class()
           to fix modifying offloaded qdiscs
      
         - lantiq: net: fix duplicated skb in rx descriptor ring
      
         - rtnetlink: fix regression in bridge VLAN configuration, empty info
           is not an error, bot-generated "fix" was not needed
      
         - libbpf: s/rx/tx/ typo on umem->rx_ring_setup_done to fix umem
           creation
      
        Current release - new code bugs:
      
         - ethtool: fix NULL pointer dereference during module EEPROM dump via
           the new netlink API
      
         - mlx5e: don't update netdev RQs with PTP-RQ, the special purpose
           queue should not be visible to the stack
      
         - mlx5e: select special PTP queue only for SKBTX_HW_TSTAMP skbs
      
         - mlx5e: verify dev is present in get devlink port ndo, avoid a panic
      
        Previous releases - regressions:
      
         - neighbour: allow NUD_NOARP entries to be force GCed
      
         - further fixes for fallout from reorg of WiFi locking (staging:
           rtl8723bs, mac80211, cfg80211)
      
         - skbuff: fix incorrect msg_zerocopy copy notifications
      
         - mac80211: fix NULL ptr deref for injected rate info
      
         - Revert "net/mlx5: Arm only EQs with EQEs" it may cause missed IRQs
      
        Previous releases - always broken:
      
         - bpf: more speculative execution fixes
      
         - netfilter: nft_fib_ipv6: skip ipv6 packets from any to link-local
      
         - udp: fix race between close() and udp_abort() resulting in a panic
      
         - fix out of bounds when parsing TCP options before packets are
           validated (in netfilter: synproxy, tc: sch_cake and mptcp)
      
         - mptcp: improve operation under memory pressure, add missing
           wake-ups
      
         - mptcp: fix double-lock/soft lookup in subflow_error_report()
      
         - bridge: fix races (null pointer deref and UAF) in vlan tunnel
           egress
      
         - ena: fix DMA mapping function issues in XDP
      
         - rds: fix memory leak in rds_recvmsg
      
        Misc:
      
         - vrf: allow larger MTUs
      
         - icmp: don't send out ICMP messages with a source address of 0.0.0.0
      
         - cdc_ncm: switch to eth%d interface naming"
      
      * tag 'net-5.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (139 commits)
        net: ethernet: fix potential use-after-free in ec_bhf_remove
        selftests/net: Add icmp.sh for testing ICMP dummy address responses
        icmp: don't send out ICMP messages with a source address of 0.0.0.0
        net: ll_temac: Avoid ndo_start_xmit returning NETDEV_TX_BUSY
        net: ll_temac: Fix TX BD buffer overwrite
        net: ll_temac: Add memory-barriers for TX BD access
        net: ll_temac: Make sure to free skb when it is completely used
        MAINTAINERS: add Guvenc as SMC maintainer
        bnxt_en: Call bnxt_ethtool_free() in bnxt_init_one() error path
        bnxt_en: Fix TQM fastpath ring backing store computation
        bnxt_en: Rediscover PHY capabilities after firmware reset
        cxgb4: fix wrong shift.
        mac80211: handle various extensible elements correctly
        mac80211: reset profile_periodicity/ema_ap
        cfg80211: avoid double free of PMSR request
        cfg80211: make certificate generation more robust
        mac80211: minstrel_ht: fix sample time check
        net: qed: Fix memcpy() overflow of qed_dcbx_params()
        net: cdc_eem: fix tx fixup skb leak
        net: hamradio: fix memory leak in mkiss_close
        ...
      9ed13a17
  3. 18 Jun, 2021 9 commits
    • Linus Torvalds's avatar
      Merge tag 'for-5.13-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux · 6fab154a
      Linus Torvalds authored
      Pull btrfs fix from David Sterba:
       "One more fix, for a space accounting bug in zoned mode. It happens
        when a block group is switched back rw->ro and unusable bytes (due to
        zoned constraints) are subtracted twice.
      
        It has user visible effects so I consider it important enough for late
        -rc inclusion and backport to stable"
      
      * tag 'for-5.13-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
        btrfs: zoned: fix negative space_info->bytes_readonly
      6fab154a
    • Linus Torvalds's avatar
      Merge tag 'pci-v5.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 728a748b
      Linus Torvalds authored
      Pull PCI fixes from Bjorn Helgaas:
      
       - Clear 64-bit flag for host bridge windows below 4GB to fix a resource
         allocation regression added in -rc1 (Punit Agrawal)
      
       - Fix tegra194 MCFG quirk build regressions added in -rc1 (Jon Hunter)
      
       - Avoid secondary bus resets on TI KeyStone C667X devices (Antti
         Järvinen)
      
       - Avoid secondary bus resets on some NVIDIA GPUs (Shanker Donthineni)
      
       - Work around FLR erratum on Huawei Intelligent NIC VF (Chiqijun)
      
       - Avoid broken ATS on AMD Navi14 GPU (Evan Quan)
      
       - Trust Broadcom BCM57414 NIC to isolate functions even though it
         doesn't advertise ACS support (Sriharsha Basavapatna)
      
       - Work around AMD RS690 BIOSes that don't configure DMA above 4GB
         (Mikel Rychliski)
      
       - Fix panic during PIO transfer on Aardvark controller (Pali Rohár)
      
      * tag 'pci-v5.13-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        PCI: aardvark: Fix kernel panic during PIO transfer
        PCI: Add AMD RS690 quirk to enable 64-bit DMA
        PCI: Add ACS quirk for Broadcom BCM57414 NIC
        PCI: Mark AMD Navi14 GPU ATS as broken
        PCI: Work around Huawei Intelligent NIC VF FLR erratum
        PCI: Mark some NVIDIA GPUs to avoid bus reset
        PCI: Mark TI C667X to avoid bus reset
        PCI: tegra194: Fix MCFG quirk build regressions
        PCI: of: Clear 64-bit flag for non-prefetchable memory below 4GB
      728a748b
    • Matthew Wilcox (Oracle)'s avatar
      afs: Re-enable freezing once a page fault is interrupted · 9620ad86
      Matthew Wilcox (Oracle) authored
      If a task is killed during a page fault, it does not currently call
      sb_end_pagefault(), which means that the filesystem cannot be frozen
      at any time thereafter.  This may be reported by lockdep like this:
      
      ====================================
      WARNING: fsstress/10757 still has locks held!
      5.13.0-rc4-build4+ #91 Not tainted
      ------------------------------------
      1 lock held by fsstress/10757:
       #0: ffff888104eac530
       (
      sb_pagefaults
      
      as filesystem freezing is modelled as a lock.
      
      Fix this by removing all the direct returns from within the function,
      and using 'ret' to indicate whether we were interrupted or successful.
      
      Fixes: 1cf7a151 ("afs: Implement shared-writeable mmap")
      Signed-off-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      cc: linux-afs@lists.infradead.org
      Link: https://lore.kernel.org/r/20210616154900.1958373-1-willy@infradead.org/Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      9620ad86
    • David S. Miller's avatar
      Merge branch 'RPMSG-WWAN-CTRL-driver' · 4bea7207
      David S. Miller authored
      Stephan Gerhold says:
      
      ====================
      net: wwan: Add RPMSG WWAN CTRL driver
      
      This patch series adds a WWAN "control" driver for the remote processor
      messaging (rpmsg) subsystem. This subsystem allows communicating with
      an integrated modem DSP on many Qualcomm SoCs, e.g. MSM8916 or MSM8974.
      
      The driver is a fairly simple glue layer between WWAN and RPMSG
      and is mostly based on the existing mhi_wwan_ctrl.c and rpmsg_char.c.
      
      For more information, see commit message in PATCH 2/3.
      
      I already posted a RFC for this a while ago:
      https://lore.kernel.org/linux-arm-msm/YLfL9Q+4860uqS8f@gerhold.net/
      and now I'm looking for some feedback for the actual changes. :)
      
      Changes in v3:
        - PATCH 2/3: Clarify commit message
        - PATCH 3/3: Fix build error for cdc-wdm.c, use extra tx_blocking() op instead
      v2: https://lore.kernel.org/netdev/20210618075243.42046-1-stephan@gerhold.net/
      
      Changes in v2: Only in PATCH 3/3
        - Fix EPOLLOUT being always set even if poll op is defined
        - Rename poll() op -> tx_poll() since it should be only used for TX
      v1: https://lore.kernel.org/netdev/20210615133229.213064-1-stephan@gerhold.net/
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4bea7207
    • Stephan Gerhold's avatar
      net: wwan: Allow WWAN drivers to provide blocking tx and poll function · 31c143f7
      Stephan Gerhold authored
      At the moment, the WWAN core provides wwan_port_txon/off() to implement
      blocking writes. The tx() port operation should not block, instead
      wwan_port_txon/off() should be called when the TX queue is full or has
      free space again.
      
      However, in some cases it is not straightforward to make use of that
      functionality. For example, the RPMSG API used by rpmsg_wwan_ctrl.c
      does not provide any way to be notified when the TX queue has space
      again. Instead, it only provides the following operations:
      
        - rpmsg_send(): blocking write (wait until there is space)
        - rpmsg_trysend(): non-blocking write (return error if no space)
        - rpmsg_poll(): set poll flags depending on TX queue state
      
      Generally that's totally sufficient for implementing a char device,
      but it does not fit well to the currently provided WWAN port ops.
      
      Most of the time, using the non-blocking rpmsg_trysend() in the
      WWAN tx() port operation works just fine. However, with high-frequent
      writes to the char device it is possible to trigger a situation
      where this causes issues. For example, consider the following
      (somewhat unrealistic) example:
      
       # dd if=/dev/zero bs=1000 of=/dev/wwan0qmi0
       dd: error writing '/dev/wwan0qmi0': Resource temporarily unavailable
       1+0 records out
      
      This fails immediately after writing the first record. It's likely
      only a matter of time until this triggers issues for some real application
      (e.g. ModemManager sending a lot of large QMI packets).
      
      The rpmsg_char device does not have this problem, because it uses
      rpmsg_trysend() and rpmsg_poll() to support non-blocking operations.
      Make it possible to use the same in the RPMSG WWAN driver by adding
      two new optional wwan_port_ops:
      
        - tx_blocking(): send data blocking if allowed
        - tx_poll(): set additional TX poll flags
      
      This integrates nicely with the RPMSG API and does not require
      any change in existing WWAN drivers.
      
      With these changes, the dd example above blocks instead of exiting
      with an error.
      
      Cc: Loic Poulain <loic.poulain@linaro.org>
      Signed-off-by: default avatarStephan Gerhold <stephan@gerhold.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      31c143f7
    • Stephan Gerhold's avatar
      net: wwan: Add RPMSG WWAN CTRL driver · 5e90abf4
      Stephan Gerhold authored
      The remote processor messaging (rpmsg) subsystem provides an interface
      to communicate with other remote processors. On many Qualcomm SoCs this
      is used to communicate with an integrated modem DSP that implements most
      of the modem functionality and provides high-level protocols like
      QMI or AT to allow controlling the modem.
      
      For QMI, most older Qualcomm SoCs (e.g. MSM8916/MSM8974) have
      a standalone "DATA5_CNTL" channel that allows exchanging QMI messages.
      Note that newer SoCs (e.g. SDM845) only allow exchanging QMI messages
      via a shared QRTR channel that is available via a socket API on Linux.
      
      For AT, the "DATA4" channel accepts at least a limited set of AT
      commands, on many older and newer Qualcomm SoCs, although QMI is
      typically the preferred control protocol.
      
      Often there are additional QMI/AT channels (usually named DATA*_CNTL
      for QMI and DATA* for AT), but it is not clear if those are really
      functional on all devices. Also, at the moment there is no use case
      for having multiple QMI/AT ports. If needed more channels could be
      added later after more testing.
      
      Note that the data path (network interface) is entirely separate
      from the control path and varies between Qualcomm SoCs, e.g. "IPA"
      on newer Qualcomm SoCs or "BAM-DMUX" on some older ones.
      
      The RPMSG WWAN CTRL driver exposes the QMI/AT control ports via the
      WWAN subsystem, and therefore allows userspace like ModemManager to
      set up the modem. Until now, ModemManager had to use the RPMSG-specific
      rpmsg-char where the channels must be explicitly exposed as a char
      device first and don't show up directly in sysfs.
      
      The driver is a fairly simple glue layer between WWAN and RPMSG
      and is mostly based on the existing mhi_wwan_ctrl.c and rpmsg_char.c.
      
      Cc: Loic Poulain <loic.poulain@linaro.org>
      Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
      Signed-off-by: default avatarStephan Gerhold <stephan@gerhold.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      5e90abf4
    • Stephan Gerhold's avatar
      rpmsg: core: Add driver_data for rpmsg_device_id · 60302ce4
      Stephan Gerhold authored
      Most device_id structs provide a driver_data field that can be used
      by drivers to associate data more easily for a particular device ID.
      Add the same for the rpmsg_device_id.
      
      Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
      Signed-off-by: default avatarStephan Gerhold <stephan@gerhold.net>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      60302ce4
    • David S. Miller's avatar
      Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue · 01bf086b
      David S. Miller authored
      Jesse Brandeburg says:
      
      ====================
      100GbE Intel Wired LAN Driver Updates 2021-06-18
      
      Update three of the Intel Ethernet drivers with similar (but not the
      same) improvements to simplify the packet type table init, while removing
      an unused structure entry. For the ice driver, the table is extended
      to 10 bits, which is the hardware limit, and for now is initialized
      to zero.
      
      The end result is slightly reduced memory usage, removal of a bunch
      of code, and more specific initialization.
      ====================
      Signed-off-by: default avatarStefano Garzarella <sgarzare@redhat.com>
      01bf086b
    • David S. Miller's avatar
      Revert "net: add pf_family_names[] for protocol family" · 103ebe65
      David S. Miller authored
      This reverts commit 1f3c98ea.
      
      Does not build...
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      103ebe65