1. 14 Jul, 2017 3 commits
    • WANG Cong's avatar
      netpoll: shut up a kernel warning on refcount · 230cd127
      WANG Cong authored
      When we convert atomic_t to refcount_t, a new kernel warning
      on "increment on 0" is introduced in the netpoll code,
      zap_completion_queue(). In fact for this special case, we know
      the refcount is 0 and we just have to set it to 1 to satisfy
      the following dev_kfree_skb_any(), so we can just use
      refcount_set(..., 1) instead.
      
      Fixes: 63354797 ("net: convert sk_buff.users from atomic_t to refcount_t")
      Reported-by: default avatarDave Jones <davej@codemonkey.org.uk>
      Cc: Reshetova, Elena <elena.reshetova@intel.com>
      Signed-off-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      230cd127
    • Enrico Mioso's avatar
      cdc_ncm: Set NTB format again after altsetting switch for Huawei devices · 2b02c20c
      Enrico Mioso authored
      Some firmwares in Huawei E3372H devices have been observed to switch back
      to NTB 32-bit format after altsetting switch.
      This patch implements a driver flag to check for the device settings and
      set NTB format to 16-bit again if needed.
      The flag has been activated for devices controlled by the huawei_cdc_ncm.c
      driver.
      
      V1->V2:
      - fixed broken error checks
      - some corrections to the commit message
      V2->V3:
      - variable name changes, to clarify what's happening
      - check (and possibly set) the NTB format later in the common bind code path
      Signed-off-by: default avatarEnrico Mioso <mrkiko.rs@gmail.com>
      Reported-and-tested-by: default avatarChristian Panton <christian@panton.org>
      Reviewed-by: default avatarBjørn Mork <bjorn@mork.no>
      CC: Bjørn Mork <bjorn@mork.no>
      CC: Christian Panton <christian@panton.org>
      CC: linux-usb@vger.kernel.org
      CC: netdev@vger.kernel.org
      CC: Oliver Neukum <oliver@neukum.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2b02c20c
    • Martin Blumenstingl's avatar
      mdio: mux: fix parsing mux registers outside of the PHY address range · 457839ed
      Martin Blumenstingl authored
      mdio_mux_init parses the child nodes of the MDIO mux. When using
      "mdio-mux-mmioreg" the child nodes are describing the register value
      that is written to switch between the MDIO busses.
      
      The change which makes the error messages more verbose changed the
      parsing of the "reg" property from a simple of_property_read_u32 call
      to of_mdio_parse_addr. On a Khadas VIM (based on the Meson GXL SoC,
      which uses mdio-mux-mmioreg) this prevents registering the MDIO mux
      (because the "reg" values on the MDIO mux child nodes are 0x2009087f
      and 0xe40908ff) and leads to the following errors:
        mdio-mux-mmioreg c883455c.eth-phy-mux: /soc/periphs@c8834000/eth-phy-mux/mdio@e40908ff PHY address -469169921 is too large
        mdio-mux-mmioreg c883455c.eth-phy-mux: Error: Failed to find reg for child /soc/periphs@c8834000/eth-phy-mux/mdio@e40908ff
        mdio-mux-mmioreg c883455c.eth-phy-mux: /soc/periphs@c8834000/eth-phy-mux/mdio@2009087f PHY address 537462911 is too large
        mdio-mux-mmioreg c883455c.eth-phy-mux: Error: Failed to find reg for child /soc/periphs@c8834000/eth-phy-mux/mdio@2009087f
        mdio-mux-mmioreg c883455c.eth-phy-mux: Error: No acceptable child buses found
        mdio-mux-mmioreg c883455c.eth-phy-mux: failed to register mdio-mux bus /soc/periphs@c8834000/eth-phy-mux
      (as a result of that ethernet is not working, because the PHY which is
      connected through the mux' child MDIO bus, which is not being
      registered).
      
      Fix this by reverting the change from of_mdio_parse_addr to
      of_mdio_parse_addr.
      
      Fixes: 342fa196 ("mdio: mux: make child bus walking more permissive and errors more verbose")
      Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
      Acked-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
      Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      457839ed
  2. 13 Jul, 2017 12 commits
  3. 12 Jul, 2017 22 commits
    • LABBE Corentin's avatar
      net: stmmac: revert "support future possible different internal phy mode" · d93b07f8
      LABBE Corentin authored
      Since internal phy-mode is reserved for non-xMII protocol we cannot use
      it with dwmac-sun8i.
      Furthermore, all DT patchs which comes with this patch were cleaned, so
      the current state is broken.
      This reverts commit 1c2fa5f8 ("net: stmmac: support future possible different internal phy mode")
      
      Fixes: 1c2fa5f8 ("net: stmmac: support future possible different internal phy mode")
      Signed-off-by: default avatarCorentin Labbe <clabbe.montjoie@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d93b07f8
    • Bert Kenward's avatar
      sfc: don't read beyond unicast address list · c70d6815
      Bert Kenward authored
      If we have more than 32 unicast MAC addresses assigned to an interface
      we will read beyond the end of the address table in the driver when
      adding filters. The next 256 entries store multicast addresses, so we
      will end up attempting to insert duplicate filters, which is mostly
      harmless. If we add more than 288 unicast addresses we will then read
      past the multicast address table, which is likely to be more exciting.
      
      Fixes: 12fb0da4 ("sfc: clean fallbacks between promisc/normal in efx_ef10_filter_sync_rx_mode")
      Signed-off-by: default avatarBert Kenward <bkenward@solarflare.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      c70d6815
    • David S. Miller's avatar
      Merge branch 'net-doc-fixes' · 07b8a7cf
      David S. Miller authored
      Stephen Hemminger says:
      
      ====================
      minor net kernel-doc fixes
      
      Fix a couple of small errors in kernel-doc for networking
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      07b8a7cf
    • stephen hemminger's avatar
      datagram: fix kernel-doc comments · d3f6cd9e
      stephen hemminger authored
      An underscore in the kernel-doc comment section has special meaning
      and mis-use generates an errors.
      
      ./net/core/datagram.c:207: ERROR: Unknown target name: "msg".
      ./net/core/datagram.c:379: ERROR: Unknown target name: "msg".
      ./net/core/datagram.c:816: ERROR: Unknown target name: "t".
      Signed-off-by: default avatarStephen Hemminger <sthemmin@microsoft.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d3f6cd9e
    • stephen hemminger's avatar
      socket: add documentation for missing elements · 771edcaf
      stephen hemminger authored
      Fill in missing kernel-doc for missing elements in struct sock.
      Signed-off-by: default avatarStephen Hemminger <sthemmin@microsoft.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      771edcaf
    • Alexey Khoroshilov's avatar
      smsc911x: Add check for ioremap_nocache() return code · 57fe1479
      Alexey Khoroshilov authored
      There is no check for return code of smsc911x_drv_probe()
      in smsc911x_drv_probe(). The patch adds one.
      
      Found by Linux Driver Verification project (linuxtesting.org).
      Signed-off-by: default avatarAlexey Khoroshilov <khoroshilov@ispras.ru>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      57fe1479
    • Linus Torvalds's avatar
      Merge branch 'i2c/for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 235b84fc
      Linus Torvalds authored
      Pull i2c updates from Wolfram Sang:
       "This pull request contains:
      
         - i2c core reorganization. One source file became too monolithic. It
           is now split up, yet we still have the same named object as the
           final output. This should ease maintenance.
      
         - new drivers: ZTE ZX2967 family, ASPEED 24XX/25XX
      
         - designware driver gained slave mode support
      
         - xgene-slimpro driver gained ACPI support
      
         - bigger overhaul for pca-platform driver
      
         - the algo-bit module now supports messages with enforced STOP
      
         - slightly bigger than usual set of driver updates and improvements
      
        and with much appreciated quality assurance from Andy Shevchenko"
      
      * 'i2c/for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (51 commits)
        i2c: Provide a stub for i2c_detect_slave_mode()
        i2c: designware: Let slave adapter support be optional
        i2c: designware: Make HW init functions static
        i2c: designware: fix spelling mistakes
        i2c: pca-platform: propagate error from i2c_pca_add_numbered_bus
        i2c: pca-platform: correctly set algo_data.reset_chip
        i2c: acpi: Do not create i2c-clients for LNXVIDEO ACPI devices
        i2c: designware: enable SLAVE in platform module
        i2c: designware: add SLAVE mode functions
        i2c: zx2967: drop COMPILE_TEST dependency
        i2c: zx2967: always use the same device when printing errors
        i2c: pca-platform: use dev_warn/dev_info instead of printk
        i2c: pca-platform: use device managed allocations
        i2c: pca-platform: add devicetree awareness
        i2c: pca-platform: switch to struct gpio_desc
        dt-bindings: add bindings for i2c-pca-platform
        i2c: cadance: fix ctrl/addr reg write order
        i2c: zx2967: add i2c controller driver for ZTE's zx2967 family
        dt: bindings: add documentation for zx2967 family i2c controller
        i2c: algo-bit: add support for I2C_M_STOP
        ...
      235b84fc
    • Linus Torvalds's avatar
      Merge tag 'iommu-updates-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu · fb4e3bee
      Linus Torvalds authored
      Pull IOMMU updates from Joerg Roedel:
       "This update comes with:
      
         - Support for lockless operation in the ARM io-pgtable code.
      
           This is an important step to solve the scalability problems in the
           common dma-iommu code for ARM
      
         - Some Errata workarounds for ARM SMMU implemenations
      
         - Rewrite of the deferred IO/TLB flush code in the AMD IOMMU driver.
      
           The code suffered from very high flush rates, with the new
           implementation the flush rate is down to ~1% of what it was before
      
         - Support for amd_iommu=off when booting with kexec.
      
           The problem here was that the IOMMU driver bailed out early without
           disabling the iommu hardware, if it was enabled in the old kernel
      
         - The Rockchip IOMMU driver is now available on ARM64
      
         - Align the return value of the iommu_ops->device_group call-backs to
           not miss error values
      
         - Preempt-disable optimizations in the Intel VT-d and common IOVA
           code to help Linux-RT
      
         - Various other small cleanups and fixes"
      
      * tag 'iommu-updates-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (60 commits)
        iommu/vt-d: Constify intel_dma_ops
        iommu: Warn once when device_group callback returns NULL
        iommu/omap: Return ERR_PTR in device_group call-back
        iommu: Return ERR_PTR() values from device_group call-backs
        iommu/s390: Use iommu_group_get_for_dev() in s390_iommu_add_device()
        iommu/vt-d: Don't disable preemption while accessing deferred_flush()
        iommu/iova: Don't disable preempt around this_cpu_ptr()
        iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126
        iommu/arm-smmu-v3: Enable ACPI based HiSilicon CMD_PREFETCH quirk(erratum 161010701)
        iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #74
        ACPI/IORT: Fixup SMMUv3 resource size for Cavium ThunderX2 SMMUv3 model
        iommu/arm-smmu-v3, acpi: Add temporary Cavium SMMU-V3 IORT model number definitions
        iommu/io-pgtable-arm: Use dma_wmb() instead of wmb() when publishing table
        iommu/io-pgtable: depend on !GENERIC_ATOMIC64 when using COMPILE_TEST with LPAE
        iommu/arm-smmu-v3: Remove io-pgtable spinlock
        iommu/arm-smmu: Remove io-pgtable spinlock
        iommu/io-pgtable-arm-v7s: Support lockless operation
        iommu/io-pgtable-arm: Support lockless operation
        iommu/io-pgtable: Introduce explicit coherency
        iommu/io-pgtable-arm-v7s: Refactor split_blk_unmap
        ...
      fb4e3bee
    • Linus Torvalds's avatar
      Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs · 6b1c776d
      Linus Torvalds authored
      Pull overlayfs updates from Miklos Szeredi:
       "This work from Amir introduces the inodes index feature, which
        provides:
      
         - hardlinks are not broken on copy up
      
         - infrastructure for overlayfs NFS export
      
        This also fixes constant st_ino for samefs case for lower hardlinks"
      
      * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (33 commits)
        ovl: mark parent impure and restore timestamp on ovl_link_up()
        ovl: document copying layers restrictions with inodes index
        ovl: cleanup orphan index entries
        ovl: persistent overlay inode nlink for indexed inodes
        ovl: implement index dir copy up
        ovl: move copy up lock out
        ovl: rearrange copy up
        ovl: add flag for upper in ovl_entry
        ovl: use struct copy_up_ctx as function argument
        ovl: base tmpfile in workdir too
        ovl: factor out ovl_copy_up_inode() helper
        ovl: extract helper to get temp file in copy up
        ovl: defer upper dir lock to tempfile link
        ovl: hash overlay non-dir inodes by copy up origin
        ovl: cleanup bad and stale index entries on mount
        ovl: lookup index entry for copy up origin
        ovl: verify index dir matches upper dir
        ovl: verify upper root dir matches lower root dir
        ovl: introduce the inodes index dir feature
        ovl: generalize ovl_create_workdir()
        ...
      6b1c776d
    • Al Viro's avatar
      fix a braino in compat_sys_getrlimit() · 58c7ffc0
      Al Viro authored
      Reported-and-tested-by: default avatarMeelis Roos <mroos@linux.ee>
      Fixes: commit d9e968cb "getrlimit()/setrlimit(): move compat to native"
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
      Acked-by: default avatarDavid S. Miller <davem@davemloft.net>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      58c7ffc0
    • Arend van Spriel's avatar
      brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx() · 8f44c9a4
      Arend van Spriel authored
      The lower level nl80211 code in cfg80211 ensures that "len" is between
      25 and NL80211_ATTR_FRAME (2304).  We subtract DOT11_MGMT_HDR_LEN (24) from
      "len" so thats's max of 2280.  However, the action_frame->data[] buffer is
      only BRCMF_FIL_ACTION_FRAME_SIZE (1800) bytes long so this memcpy() can
      overflow.
      
      	memcpy(action_frame->data, &buf[DOT11_MGMT_HDR_LEN],
      	       le16_to_cpu(action_frame->len));
      
      Cc: stable@vger.kernel.org # 3.9.x
      Fixes: 18e2f61d ("brcmfmac: P2P action frame tx.")
      Reported-by: default avatar"freenerguo(郭大兴)" <freenerguo@tencent.com>
      Signed-off-by: default avatarArend van Spriel <arend.vanspriel@broadcom.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      8f44c9a4
    • Lin Yun Sheng's avatar
      net: hns: Bugfix for Tx timeout handling in hns driver · 76b825ab
      Lin Yun Sheng authored
      When hns port type is not debug mode, netif_tx_disable is called
      when there is a tx timeout, which requires system reboot to return
      to normal state. This patch fix this problem by resetting the net
      dev.
      
      Fixes: b5996f11 ("net: add Hisilicon Network Subsystem basic ethernet support")
      Signed-off-by: default avatarLin Yun Sheng <linyunsheng@huawei.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      76b825ab
    • Dan Carpenter's avatar
      net: ipmr: ipmr_get_table() returns NULL · 2e3d232e
      Dan Carpenter authored
      The ipmr_get_table() function doesn't return error pointers it returns
      NULL on error.
      
      Fixes: 4f75ba69 ("net: ipmr: Add ipmr_rtm_getroute")
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Acked-by: default avatarNikolay Aleksandrov <nikolay@cumulusnetworks.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2e3d232e
    • Dan Carpenter's avatar
      nfp: freeing the wrong variable · 88f0f09b
      Dan Carpenter authored
      We accidentally free a NULL pointer and leak the pointer we want to
      free.  Also you can tell from the label name what was intended.  :)
      
      Fixes: abfcdc1d ("nfp: add a stats handler for flower offloads")
      Signed-off-by: default avatarDan Carpenter <dan.carpenter@oracle.com>
      Acked-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      88f0f09b
    • David S. Miller's avatar
      Merge branch 'mlxsw-spectrum-Various-fixes' · da296769
      David S. Miller authored
      Jiri Pirko says:
      
      ====================
      mlxsw: spectrum: Various fixes
      
      First patch adds a missing rollback in error path. Second patch prevents
      a use-after-free during IPv4 route replace. Last two patches fix warnings
      from static checkers.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      da296769
    • Ido Schimmel's avatar
      mlxsw: spectrum_switchdev: Check status of memory allocation · 6f497930
      Ido Schimmel authored
      We can't rely on kzalloc() always succeeding, so check its return value.
      
      Suppresses the following smatch error:
      
      mlxsw_sp_switchdev_event() error: potential null dereference
      'switchdev_work->fdb_info.addr'.  (kzalloc returns
       null)
      
      Fixes: af061378 ("mlxsw: spectrum_switchdev: Add support for learning FDB through notification")
      Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      6f497930
    • Ido Schimmel's avatar
      mlxsw: spectrum_switchdev: Remove unused variable · a9265b80
      Ido Schimmel authored
      Commit 10e23eb2 ("mlxsw: spectrum: Remove support for bypass bridge
      port attributes/vlan set") removed statements that used 'bridge_vlan',
      but didn't remove the variable itself resulting in the following warning
      with W=1:
      
      warning: variable ‘bridge_vlan’ set but not used
      [-Wunused-but-set-variable]
      
      Remove the variable and suppress the warning.
      
      Fixes: 10e23eb2 ("mlxsw: spectrum: Remove support for bypass bridge port attributes/vlan set")
      Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a9265b80
    • Ido Schimmel's avatar
      mlxsw: spectrum_router: Fix use-after-free in route replace · 7387dbbc
      Ido Schimmel authored
      While working on IPv6 route replace I realized we can have a
      use-after-free in IPv4 in case the replaced route is offloaded and the
      only one using its FIB info.
      
      The problem is that fib_table_insert() drops the reference on the FIB
      info of the replaced routes which is eventually freed via call_rcu().
      Since the driver doesn't hold a reference on this FIB info it can cause
      a use-after-free when it tries to clear the RTNH_F_OFFLOAD flag stored
      in fi->fib_flags.
      
      After running the following commands in a loop for enough time with a
      KASAN enabled kernel I finally got the below trace.
      
      $ ip route add 192.168.50.0/24 via 192.168.200.1 dev enp3s0np3
      $ ip route replace 192.168.50.0/24 dev enp3s0np5
      $ ip route del 192.168.50.0/24 dev enp3s0np5
      
      BUG: KASAN: use-after-free in mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
      Read of size 4 at addr ffff8803717d9820 by task kworker/u4:2/55
      [...]
      ? mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
      ? mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
      ? mlxsw_sp_router_neighs_update_work+0x1cd0/0x1ce0 [mlxsw_spectrum]
      ? mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
      __asan_load4+0x61/0x80
      mlxsw_sp_fib_entry_offload_unset+0xa7/0x120 [mlxsw_spectrum]
      mlxsw_sp_fib_entry_offload_refresh+0xb6/0x370 [mlxsw_spectrum]
      mlxsw_sp_router_fib_event_work+0xd1c/0x2780 [mlxsw_spectrum]
      [...]
      Freed by task 5131:
       save_stack_trace+0x16/0x20
       save_stack+0x46/0xd0
       kasan_slab_free+0x70/0xc0
       kfree+0x144/0x570
       free_fib_info_rcu+0x2e7/0x410
       rcu_process_callbacks+0x4f8/0xe30
       __do_softirq+0x1d3/0x9e2
      
      Fix this by taking a reference on the FIB info when creating the nexthop
      group it represents and drop it when the group is destroyed.
      
      Fixes: 599cf8f9 ("mlxsw: spectrum_router: Add support for route replace")
      Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      7387dbbc
    • Ido Schimmel's avatar
      mlxsw: spectrum_router: Add missing rollback · a4e75b76
      Ido Schimmel authored
      With this patch the error path of mlxsw_sp_nexthop_init() is symmetric
      with mlxsw_sp_nexthop_fini(). Noticed during code review.
      
      Fixes: a8c97014 ("mlxsw: spectrum_router: Refactor nexthop init routine")
      Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a4e75b76
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 3b06b1a7
      Linus Torvalds authored
      Pull sparc fixes from David Miller:
      
       - Fix symbol version generation for assembler on sparc, from
         Nagarathnam Muthusamy.
      
       - Fix compound page handling in gup_huge_pmd(), from Nitin Gupta.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc64: Fix gup_huge_pmd
        Adding the type of exported symbols
        sed regex in Makefile.build requires line break between exported symbols
        Adding asm-prototypes.h for genksyms to generate crc
      3b06b1a7
    • Yonghong Song's avatar
      samples/bpf: fix a build issue · 53335022
      Yonghong Song authored
      With latest net-next:
      
      ====
      clang  -nostdinc -isystem /usr/lib/gcc/x86_64-redhat-linux/6.3.1/include -I./arch/x86/include -I./arch/x86/include/generated/uapi -I./arch/x86/include/generated  -I./include -I./arch/x86/include/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/kconfig.h  -Isamples/bpf \
          -D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
          -Wno-compare-distinct-pointer-types \
          -Wno-gnu-variable-sized-type-not-at-end \
          -Wno-address-of-packed-member -Wno-tautological-compare \
          -Wno-unknown-warning-option \
          -O2 -emit-llvm -c samples/bpf/tcp_synrto_kern.c -o -| llc -march=bpf -filetype=obj -o samples/bpf/tcp_synrto_kern.o
      samples/bpf/tcp_synrto_kern.c:20:10: fatal error: 'bpf_endian.h' file not found
                ^~~~~~~~~~~~~~
      1 error generated.
      ====
      
      net has the same issue.
      
      Add support for ntohl and htonl in tools/testing/selftests/bpf/bpf_endian.h.
      Also move bpf_helpers.h from samples/bpf to selftests/bpf and change
      compiler include logic so that programs in samples/bpf can access the headers
      in selftests/bpf, but not the other way around.
      Signed-off-by: default avatarYonghong Song <yhs@fb.com>
      Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      Acked-by: default avatarLawrence Brakmo <brakmo@fb.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      53335022
    • Eduardo Valentin's avatar
      bridge: mdb: fix leak on complete_info ptr on fail path · 1bfb1596
      Eduardo Valentin authored
      We currently get the following kmemleak report:
      unreferenced object 0xffff8800039d9820 (size 32):
        comm "softirq", pid 0, jiffies 4295212383 (age 792.416s)
        hex dump (first 32 bytes):
          00 0c e0 03 00 88 ff ff ff 02 00 00 00 00 00 00  ................
          00 00 00 01 ff 11 00 02 86 dd 00 00 ff ff ff ff  ................
        backtrace:
          [<ffffffff8152b4aa>] kmemleak_alloc+0x4a/0xa0
          [<ffffffff811d8ec8>] kmem_cache_alloc_trace+0xb8/0x1c0
          [<ffffffffa0389683>] __br_mdb_notify+0x2a3/0x300 [bridge]
          [<ffffffffa038a0ce>] br_mdb_notify+0x6e/0x70 [bridge]
          [<ffffffffa0386479>] br_multicast_add_group+0x109/0x150 [bridge]
          [<ffffffffa0386518>] br_ip6_multicast_add_group+0x58/0x60 [bridge]
          [<ffffffffa0387fb5>] br_multicast_rcv+0x1d5/0xdb0 [bridge]
          [<ffffffffa037d7cf>] br_handle_frame_finish+0xcf/0x510 [bridge]
          [<ffffffffa03a236b>] br_nf_hook_thresh.part.27+0xb/0x10 [br_netfilter]
          [<ffffffffa03a3738>] br_nf_hook_thresh+0x48/0xb0 [br_netfilter]
          [<ffffffffa03a3fb9>] br_nf_pre_routing_finish_ipv6+0x109/0x1d0 [br_netfilter]
          [<ffffffffa03a4400>] br_nf_pre_routing_ipv6+0xd0/0x14c [br_netfilter]
          [<ffffffffa03a3c27>] br_nf_pre_routing+0x197/0x3d0 [br_netfilter]
          [<ffffffff814a2952>] nf_iterate+0x52/0x60
          [<ffffffff814a29bc>] nf_hook_slow+0x5c/0xb0
          [<ffffffffa037ddf4>] br_handle_frame+0x1a4/0x2c0 [bridge]
      
      This happens when switchdev_port_obj_add() fails. This patch
      frees complete_info object in the fail path.
      Reviewed-by: default avatarVallish Vaidyeshwara <vallish@amazon.com>
      Signed-off-by: default avatarEduardo Valentin <eduval@amazon.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      1bfb1596
  4. 11 Jul, 2017 3 commits
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 130568d5
      Linus Torvalds authored
      Pull more block updates from Jens Axboe:
       "This is a followup for block changes, that didn't make the initial
        pull request. It's a bit of a mixed bag, this contains:
      
         - A followup pull request from Sagi for NVMe. Outside of fixups for
           NVMe, it also includes a series for ensuring that we properly
           quiesce hardware queues when browsing live tags.
      
         - Set of integrity fixes from Dmitry (mostly), fixing various issues
           for folks using DIF/DIX.
      
         - Fix for a bug introduced in cciss, with the req init changes. From
           Christoph.
      
         - Fix for a bug in BFQ, from Paolo.
      
         - Two followup fixes for lightnvm/pblk from Javier.
      
         - Depth fix from Ming for blk-mq-sched.
      
         - Also from Ming, performance fix for mtip32xx that was introduced
           with the dynamic initialization of commands"
      
      * 'for-linus' of git://git.kernel.dk/linux-block: (44 commits)
        block: call bio_uninit in bio_endio
        nvmet: avoid unneeded assignment of submit_bio return value
        nvme-pci: add module parameter for io queue depth
        nvme-pci: compile warnings in nvme_alloc_host_mem()
        nvmet_fc: Accept variable pad lengths on Create Association LS
        nvme_fc/nvmet_fc: revise Create Association descriptor length
        lightnvm: pblk: remove unnecessary checks
        lightnvm: pblk: control I/O flow also on tear down
        cciss: initialize struct scsi_req
        null_blk: fix error flow for shared tags during module_init
        block: Fix __blkdev_issue_zeroout loop
        nvme-rdma: unconditionally recycle the request mr
        nvme: split nvme_uninit_ctrl into stop and uninit
        virtio_blk: quiesce/unquiesce live IO when entering PM states
        mtip32xx: quiesce request queues to make sure no submissions are inflight
        nbd: quiesce request queues to make sure no submissions are inflight
        nvme: kick requeue list when requeueing a request instead of when starting the queues
        nvme-pci: quiesce/unquiesce admin_q instead of start/stop its hw queues
        nvme-loop: quiesce/unquiesce admin_q instead of start/stop its hw queues
        nvme-fc: quiesce/unquiesce admin_q instead of start/stop its hw queues
        ...
      130568d5
    • Linus Torvalds's avatar
      Merge tag 'smb3-security-fixes-for-4.13' of git://git.samba.org/sfrench/cifs-2.6 · 908b852d
      Linus Torvalds authored
      Pull cifs fixes and sane default from Steve French:
       "Upgrade default dialect to more secure SMB3 from older cifs dialect"
      
      * tag 'smb3-security-fixes-for-4.13' of git://git.samba.org/sfrench/cifs-2.6:
        cifs: Clean up unused variables in smb2pdu.c
        [SMB3] Improve security, move default dialect to SMB3 from old CIFS
        [SMB3] Remove ifdef since SMB3 (and later) now STRONGLY preferred
        CIFS: Reconnect expired SMB sessions
        CIFS: Display SMB2 error codes in the hex format
        cifs: Use smb 2 - 3 and cifsacl mount options setacl function
        cifs: prototype declaration and definition to set acl for smb 2 - 3 and cifsacl mount options
      908b852d
    • WANG Cong's avatar
      tap: convert a mutex to a spinlock · ffa423fb
      WANG Cong authored
      We are not allowed to block on the RCU reader side, so can't
      just hold the mutex as before. As a quick fix, convert it to
      a spinlock.
      
      Fixes: d9f1f61c ("tap: Extending tap device create/destroy APIs")
      Reported-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Tested-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
      Cc: Sainath Grandhi <sainath.grandhi@intel.com>
      Signed-off-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ffa423fb