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There are two problems with calling sock_create_kern() from
rds_tcp_accept_one()
1. it sets up a new_sock->sk that is wasteful, because this ->sk
is going to get replaced by inet_accept() in the subsequent ->accept()
2. The new_sock->sk is a leaked reference in sock_graft() which
expects to find a null parent->sk
Avoid these problems by calling sock_create_lite().
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lin Yun Sheng says:
====================
Bugfixs for hns ethernet driver
This patchset fix skb used after free and C45 op code issues
in hns driver.
Patch V2:
1. Remove ndev->feature checking in TX description patch.
2. Add Fixes: Tag in patch description.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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skb maybe freed in hns_nic_net_xmit_hw() and return NETDEV_TX_OK,
which cause hns_nic_net_xmit to use a freed skb.
BUG: KASAN: use-after-free in hns_nic_net_xmit_hw+0x62c/0x940...
[17659.112635] alloc_debug_processing+0x18c/0x1a0
[17659.117208] __slab_alloc+0x52c/0x560
[17659.120909] kmem_cache_alloc_node+0xac/0x2c0
[17659.125309] __alloc_skb+0x6c/0x260
[17659.128837] tcp_send_ack+0x8c/0x280
[17659.132449] __tcp_ack_snd_check+0x9c/0xf0
[17659.136587] tcp_rcv_established+0x5a4/0xa70
[17659.140899] tcp_v4_do_rcv+0x27c/0x620
[17659.144687] tcp_prequeue_process+0x108/0x170
[17659.149085] tcp_recvmsg+0x940/0x1020
[17659.152787] inet_recvmsg+0x124/0x180
[17659.156488] sock_recvmsg+0x64/0x80
[17659.160012] SyS_recvfrom+0xd8/0x180
[17659.163626] __sys_trace_return+0x0/0x4
[17659.167506] INFO: Freed in kfree_skbmem+0xa0/0xb0 age=23 cpu=1 pid=13
[17659.174000] free_debug_processing+0x1d4/0x2c0
[17659.178486] __slab_free+0x240/0x390
[17659.182100] kmem_cache_free+0x24c/0x270
[17659.186062] kfree_skbmem+0xa0/0xb0
[17659.189587] __kfree_skb+0x28/0x40
[17659.193025] napi_gro_receive+0x168/0x1c0
[17659.197074] hns_nic_rx_up_pro+0x58/0x90
[17659.201038] hns_nic_rx_poll_one+0x518/0xbc0
[17659.205352] hns_nic_common_poll+0x94/0x140
[17659.209576] net_rx_action+0x458/0x5e0
[17659.213363] __do_softirq+0x1b8/0x480
[17659.217062] run_ksoftirqd+0x64/0x80
[17659.220679] smpboot_thread_fn+0x224/0x310
[17659.224821] kthread+0x150/0x170
[17659.228084] ret_from_fork+0x10/0x40
BUG: KASAN: use-after-free in hns_nic_net_xmit+0x8c/0xc0...
[17751.080490] __slab_alloc+0x52c/0x560
[17751.084188] kmem_cache_alloc+0x244/0x280
[17751.088238] __build_skb+0x40/0x150
[17751.091764] build_skb+0x28/0x100
[17751.095115] __alloc_rx_skb+0x94/0x150
[17751.098900] __napi_alloc_skb+0x34/0x90
[17751.102776] hns_nic_rx_poll_one+0x180/0xbc0
[17751.107097] hns_nic_common_poll+0x94/0x140
[17751.111333] net_rx_action+0x458/0x5e0
[17751.115123] __do_softirq+0x1b8/0x480
[17751.118823] run_ksoftirqd+0x64/0x80
[17751.122437] smpboot_thread_fn+0x224/0x310
[17751.126575] kthread+0x150/0x170
[17751.129838] ret_from_fork+0x10/0x40
[17751.133454] INFO: Freed in kfree_skbmem+0xa0/0xb0 age=19 cpu=7 pid=43
[17751.139951] free_debug_processing+0x1d4/0x2c0
[17751.144436] __slab_free+0x240/0x390
[17751.148051] kmem_cache_free+0x24c/0x270
[17751.152014] kfree_skbmem+0xa0/0xb0
[17751.155543] __kfree_skb+0x28/0x40
[17751.159022] napi_gro_receive+0x168/0x1c0
[17751.163074] hns_nic_rx_up_pro+0x58/0x90
[17751.167041] hns_nic_rx_poll_one+0x518/0xbc0
[17751.171358] hns_nic_common_poll+0x94/0x140
[17751.175585] net_rx_action+0x458/0x5e0
[17751.179373] __do_softirq+0x1b8/0x480
[17751.183076] run_ksoftirqd+0x64/0x80
[17751.186691] smpboot_thread_fn+0x224/0x310
[17751.190826] kthread+0x150/0x170
[17751.194093] ret_from_fork+0x10/0x40
Fixes: 13ac695e7ea1 ("net:hns: Add support of Hip06 SoC to the Hislicon Network Subsystem")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Reported-by: Jun He <hjat2005@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As the user manual described, the second step to write to C45 phy
by mdio should be data, but not address. Here we should fix this
issue.
Fixes: 5b904d39406a ("net: add Hisilicon Network Subsystem MDIO support")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As per the SAMA5D3 device specification it supports Jumbo frames.
But the suggested flag and length of bytes it supports was not updated
in this driver config_structure.
The maximum jumbo frames the device supports :
10240 bytes as per the device spec.
While changing the MTU value greater than 1500, it threw error:
sudo ifconfig eth1 mtu 9000
SIOCSIFMTU: Invalid argument
Add this support to driver so that it works as expected and designed.
Signed-off-by: vishnuvardhan <vardhanraj4143@gmail.com>
[nicolas.ferre@microchip.com: modify slightly commit msg]
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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James and Patrick haven't been active in years.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixes: commit d45b897b11ea ("virtio_net: allow specifying context for rx")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
pull-request: mac80211 2017-07-07
Just got a set of fixes in from Jouni/QCA, all netlink validation
fixes. I assume they ran some kind of checker, but I don't know what
kind :)
Please pull and let me know if there's any problem.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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validate_scan_freqs() retrieves frequencies from attributes
nested in the attribute NL80211_ATTR_SCAN_FREQUENCIES with
nla_get_u32(), which reads 4 bytes from each attribute
without validating the size of data received. Attributes
nested in NL80211_ATTR_SCAN_FREQUENCIES don't have an nla policy.
Validate size of each attribute before parsing to avoid potential buffer
overread.
Fixes: 2a519311926 ("cfg80211/nl80211: scanning (and mac80211 update to use it)")
Cc: stable@vger.kernel.org
Signed-off-by: Srinivas Dasari <dasaris@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Buffer overread may happen as nl80211_set_station() reads 4 bytes
from the attribute NL80211_ATTR_LOCAL_MESH_POWER_MODE without
validating the size of data received when userspace sends less
than 4 bytes of data with NL80211_ATTR_LOCAL_MESH_POWER_MODE.
Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE to avoid
the buffer overread.
Fixes: 3b1c5a5307f ("{cfg,nl}80211: mesh power mode primitives and userspace access")
Cc: stable@vger.kernel.org
Signed-off-by: Srinivas Dasari <dasaris@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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nla policy checks for only maximum length of the attribute data when the
attribute type is NLA_BINARY. If userspace sends less data than
specified, cfg80211 may access illegal memory. When type is NLA_UNSPEC,
nla policy check ensures that userspace sends minimum specified length
number of bytes.
Remove type assignment to NLA_BINARY from nla_policy of
NL80211_NAN_FUNC_SERVICE_ID to make these NLA_UNSPEC and to make sure
minimum NL80211_NAN_FUNC_SERVICE_ID_LEN bytes are received from
userspace with NL80211_NAN_FUNC_SERVICE_ID.
Fixes: a442b761b24 ("cfg80211: add add_nan_func / del_nan_func")
Cc: stable@vger.kernel.org
Signed-off-by: Srinivas Dasari <dasaris@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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nla policy checks for only maximum length of the attribute data
when the attribute type is NLA_BINARY. If userspace sends less
data than specified, the wireless drivers may access illegal
memory. When type is NLA_UNSPEC, nla policy check ensures that
userspace sends minimum specified length number of bytes.
Remove type assignment to NLA_BINARY from nla_policy of
NL80211_ATTR_PMKID to make this NLA_UNSPEC and to make sure minimum
WLAN_PMKID_LEN bytes are received from userspace with
NL80211_ATTR_PMKID.
Fixes: 67fbb16be69d ("nl80211: PMKSA caching support")
Cc: stable@vger.kernel.org
Signed-off-by: Srinivas Dasari <dasaris@qti.qualcomm.com>
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If this memory allocation fails, we should go through the error handling
path as done everywhere else in this function before returning.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
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nfp_flower_metadata_cleanup() is defined but never invoked,
not calling it will cause us to leak mask and statistics
queue memory on the host.
Fixes: 43f84b72c50d ("nfp: add metadata to each flow offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When destroying a VRF device we cleanup the slaves in its ndo_uninit()
function, but that causes packets to be switched (skb->dev == vrf being
destroyed) even though we're pass the point where the VRF should be
receiving any packets while it is being dismantled. This causes a BUG_ON
to trigger if we have raw sockets (trace below).
The reason is that the inetdev of the VRF has been destroyed but we're
still sending packets up the stack with it, so let's free the slaves in
the dellink callback as David Ahern suggested.
Note that this fix doesn't prevent packets from going up when the VRF
device is admin down.
[ 35.631371] ------------[ cut here ]------------
[ 35.631603] kernel BUG at net/ipv4/fib_frontend.c:285!
[ 35.631854] invalid opcode: 0000 [#1] SMP
[ 35.631977] Modules linked in:
[ 35.632081] CPU: 2 PID: 22 Comm: ksoftirqd/2 Not tainted 4.12.0-rc7+ #45
[ 35.632247] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 35.632477] task: ffff88005ad68000 task.stack: ffff88005ad64000
[ 35.632632] RIP: 0010:fib_compute_spec_dst+0xfc/0x1ee
[ 35.632769] RSP: 0018:ffff88005ad67978 EFLAGS: 00010202
[ 35.632910] RAX: 0000000000000001 RBX: ffff880059a7f200 RCX: 0000000000000000
[ 35.633084] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff82274af0
[ 35.633256] RBP: ffff88005ad679f8 R08: 000000000001ef70 R09: 0000000000000046
[ 35.633430] R10: ffff88005ad679f8 R11: ffff880037731cb0 R12: 0000000000000001
[ 35.633603] R13: ffff8800599e3000 R14: 0000000000000000 R15: ffff8800599cb852
[ 35.634114] FS: 0000000000000000(0000) GS:ffff88005d900000(0000) knlGS:0000000000000000
[ 35.634306] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 35.634456] CR2: 00007f3563227095 CR3: 000000000201d000 CR4: 00000000000406e0
[ 35.634632] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 35.634865] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 35.635055] Call Trace:
[ 35.635271] ? __lock_acquire+0xf0d/0x1117
[ 35.635522] ipv4_pktinfo_prepare+0x82/0x151
[ 35.635831] raw_rcv_skb+0x17/0x3c
[ 35.636062] raw_rcv+0xe5/0xf7
[ 35.636287] raw_local_deliver+0x169/0x1d9
[ 35.636534] ip_local_deliver_finish+0x87/0x1c4
[ 35.636820] ip_local_deliver+0x63/0x7f
[ 35.637058] ip_rcv_finish+0x340/0x3a1
[ 35.637295] ip_rcv+0x314/0x34a
[ 35.637525] __netif_receive_skb_core+0x49f/0x7c5
[ 35.637780] ? lock_acquire+0x13f/0x1d7
[ 35.638018] ? lock_acquire+0x15e/0x1d7
[ 35.638259] __netif_receive_skb+0x1e/0x94
[ 35.638502] ? __netif_receive_skb+0x1e/0x94
[ 35.638748] netif_receive_skb_internal+0x74/0x300
[ 35.639002] ? dev_gro_receive+0x2ed/0x411
[ 35.639246] ? lock_is_held_type+0xc4/0xd2
[ 35.639491] napi_gro_receive+0x105/0x1a0
[ 35.639736] receive_buf+0xc32/0xc74
[ 35.639965] ? detach_buf+0x67/0x153
[ 35.640201] ? virtqueue_get_buf_ctx+0x120/0x176
[ 35.640453] virtnet_poll+0x128/0x1c5
[ 35.640690] net_rx_action+0x103/0x343
[ 35.640932] __do_softirq+0x1c7/0x4b7
[ 35.641171] run_ksoftirqd+0x23/0x5c
[ 35.641403] smpboot_thread_fn+0x24f/0x26d
[ 35.641646] ? sort_range+0x22/0x22
[ 35.641878] kthread+0x129/0x131
[ 35.642104] ? __list_add+0x31/0x31
[ 35.642335] ? __list_add+0x31/0x31
[ 35.642568] ret_from_fork+0x2a/0x40
[ 35.642804] Code: 05 bd 87 a3 00 01 e8 1f ef 98 ff 4d 85 f6 48 c7 c7 f0 4a 27 82 41 0f 94 c4 31 c9 31 d2 41 0f b6 f4 e8 04 71 a1 ff 45 84 e4 74 02 <0f> 0b 0f b7 93 c4 00 00 00 4d 8b a5 80 05 00 00 48 03 93 d0 00
[ 35.644342] RIP: fib_compute_spec_dst+0xfc/0x1ee RSP: ffff88005ad67978
Fixes: 193125dbd8eb ("net: Introduce VRF device driver")
Reported-by: Chris Cormier <chriscormier@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains two Netfilter fixes for your net tree,
they are:
1) Fix memleak from netns release path of conntrack protocol trackers,
patch from Liping Zhang.
2) Uninitialized flags field in ebt_log, that results in unpredictable
logging format in ebtables, also from Liping.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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With gcc 4.1.2:
drivers/ptp/ptp_dte.c: In function ‘dte_write_nco_delta’:
drivers/ptp/ptp_dte.c:105: warning: integer constant is too large for ‘long’ type
drivers/ptp/ptp_dte.c:112: warning: integer constant is too large for ‘long’ type
drivers/ptp/ptp_dte.c:114: warning: integer constant is too large for ‘long’ type
Add the missing "LL" suffix to fix this.
Fixes: 8a56aa107f1e8123 ("ptp: Add a ptp clock driver for Broadcom DTE")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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to find the correct route entry.
if there are several same route entries with different outgoing net device,
application's socket specifies the oif through setsockopt with
SO_BINDTODEVICE, sctpv6 should choose the route entry whose outgoing net
device is the oif which was specified by socket, set the value of
flowi6_oif to sk->sk_bound_dev_if to make sctp_v6_get_dst to find the
correct route entry.
Signed-off-by: Zheng Li <james.z.li@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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copy_to_user() copies the struct the pointer is pointing to, but the
length check compares against sizeof(pointer) and not sizeof(struct).
On 32-bit the size is probably the same, so it might have worked
accidentally.
Signed-off-by: Matthias Rosenfelder <mrosenfelder.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixes: 6797318e623d ("tcp: md5: add an address prefix for key lookup")
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lennert reported a failure to add different mpls encaps in a multipath
route:
$ ip -6 route add 1234::/16 \
nexthop encap mpls 10 via fe80::1 dev ens3 \
nexthop encap mpls 20 via fe80::1 dev ens3
RTNETLINK answers: File exists
The problem is that the duplicate nexthop detection does not compare
lwtunnel configuration. Add it.
Fixes: 19e42e451506 ("ipv6: support for fib route lwtunnel encap attributes")
Signed-off-by: David Ahern <dsahern@gmail.com>
Reported-by: João Taveira Araújo <joao.taveira@gmail.com>
Reported-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Tested-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The code that detects a failed soft reset of Octeon is comparing the wrong
value against the reset value of the Octeon SLI_SCRATCH_1 register,
resulting in an inability to detect a soft reset failure. Fix it by using
the correct value in the comparison, which is any non-zero value.
Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Fixes: c0eab5b3580a ("liquidio: CN23XX firmware download")
Signed-off-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Satanand Burla <satananda.burla@cavium.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull another parisc update from Helge Deller:
"Christoph Hellwig provided one patch for the parisc architecture to
drop the DMA_ERROR_CODE define from the parisc architecture"
* 'parisc-4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: ->mapping_error
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
- RAS reporting via GHES/APEI (ACPI)
- Indirect ftrace trampolines for modules
- Improvements to kernel fault reporting
- Page poisoning
- Sigframe cleanups and preparation for SVE context
- Core dump fixes
- Sparse fixes (mainly relating to endianness)
- xgene SoC PMU v3 driver
- Misc cleanups and non-critical fixes
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (75 commits)
arm64: fix endianness annotation for 'struct jit_ctx' and friends
arm64: cpuinfo: constify attribute_group structures.
arm64: ptrace: Fix incorrect get_user() use in compat_vfp_set()
arm64: ptrace: Remove redundant overrun check from compat_vfp_set()
arm64: ptrace: Avoid setting compat FP[SC]R to garbage if get_user fails
arm64: fix endianness annotation for __apply_alternatives()/get_alt_insn()
arm64: fix endianness annotation in get_kaslr_seed()
arm64: add missing conversion to __wsum in ip_fast_csum()
arm64: fix endianness annotation in acpi_parking_protocol.c
arm64: use readq() instead of readl() to read 64bit entry_point
arm64: fix endianness annotation for reloc_insn_movw() & reloc_insn_imm()
arm64: fix endianness annotation for aarch64_insn_write()
arm64: fix endianness annotation in aarch64_insn_read()
arm64: fix endianness annotation in call_undef_hook()
arm64: fix endianness annotation for debug-monitors.c
ras: mark stub functions as 'inline'
arm64: pass endianness info to sparse
arm64: ftrace: fix !CONFIG_ARM64_MODULE_PLTS kernels
arm64: signal: Allow expansion of the signal frame
acpi: apei: check for pending errors when probing GHES entries
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull mnt namespace updates from Eric Biederman:
"A big break-through came during this development cycle as a way was
found to maintain the existing umount -l semantics while allowing for
optimizations that improve the performance. That is represented by the
first change in this series moving the reparenting of mounts into
their own pass. This has allowed addressing the horrific performance
of umount -l on a carefully crafted tree of mounts with locks held
(0.06s vs 60s in my testing). What allowed this was not changing where
umounts propagate to while propgating umounts.
The next change fixes the case where the order of the mount whose
umount are being progated visits a tree where the mounts are stacked
upon each other in another order. This is weird but not hard to
implement.
The final change takes advantage of the unchanging mount propgation
tree to skip parts of the mount propgation tree that have already been
visited. Yielding a very nice speed up in the worst case.
There remains one outstanding question about the semantics of umount -l
that I am still discussiong with Ram Pai. In practice that area of the
semantics was changed by 1064f874abc0 ("mnt: Tuck mounts under others
instead of creating shadow/side mounts.") and no regressions have been
reported. Still I intend to finish talking that out with him to ensure
there is not something a more intense use of mount propagation in the
future will not cause to become significant"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
mnt: Make propagate_umount less slow for overlapping mount propagation trees
mnt: In propgate_umount handle visiting mounts in any order
mnt: In umount propagation reparent in a separate pass
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git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull GFS2 updates from Bob Peterson:
"We've got eight GFS2 patches for this merge window:
- Andreas Gruenbacher has four patches related to cleaning up the
GFS2 inode evict process. This is about half of his patches
designed to fix a long-standing GFS2 hang related to the inode
shrinker: Shrinker calls gfs2 evict, evict calls DLM, DLM requires
memory and blocks on the shrinker.
These four patches have been well tested. His second set of patches
are still being tested, so I plan to hold them until the next merge
window, after we have more weeks of testing. The first patch
eliminates the flush_delayed_work, which can block.
- Andreas's second patch protects setting of gl_object for rgrps with
a spin_lock to prevent proven races.
- His third patch introduces a centralized mechanism for queueing
glock work with better reference counting, to prevent more races.
-His fourth patch retains a reference to inode glocks when an error
occurs while creating an inode. This keeps the subsequent evict
from needing to reacquire the glock, which might call into DLM and
block in low memory conditions.
- Arvind Yadav has a patch to add const to attribute_group
structures.
- I have a patch to detect directory entry inconsistencies and
withdraw the file system if any are found. Better that than silent
corruption.
- I have a patch to remove a vestigial variable from glock
structures, saving some slab space.
- I have another patch to remove a vestigial variable from the GFS2
in-core superblock structure"
* tag 'gfs2-4.13.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
GFS2: constify attribute_group structures.
gfs2: gfs2_create_inode: Keep glock across iput
gfs2: Clean up glock work enqueuing
gfs2: Protect gl->gl_object by spin lock
gfs2: Get rid of flush_delayed_work in gfs2_evict_inode
GFS2: Eliminate vestigial sd_log_flush_wrapped
GFS2: Remove gl_list from glock structure
GFS2: Withdraw when directory entry inconsistencies are detected
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs updates from David Sterba:
"The core updates improve error handling (mostly related to bios), with
the usual incremental work on the GFP_NOFS (mis)use removal,
refactoring or cleanups. Except the two top patches, all have been in
for-next for an extensive amount of time.
User visible changes:
- statx support
- quota override tunable
- improved compression thresholds
- obsoleted mount option alloc_start
Core updates:
- bio-related updates:
- faster bio cloning
- no allocation failures
- preallocated flush bios
- more kvzalloc use, memalloc_nofs protections, GFP_NOFS updates
- prep work for btree_inode removal
- dir-item validation
- qgoup fixes and updates
- cleanups:
- removed unused struct members, unused code, refactoring
- argument refactoring (fs_info/root, caller -> callee sink)
- SEARCH_TREE ioctl docs"
* 'for-4.13-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (115 commits)
btrfs: Remove false alert when fiemap range is smaller than on-disk extent
btrfs: Don't clear SGID when inheriting ACLs
btrfs: fix integer overflow in calc_reclaim_items_nr
btrfs: scrub: fix target device intialization while setting up scrub context
btrfs: qgroup: Fix qgroup reserved space underflow by only freeing reserved ranges
btrfs: qgroup: Introduce extent changeset for qgroup reserve functions
btrfs: qgroup: Fix qgroup reserved space underflow caused by buffered write and quotas being enabled
btrfs: qgroup: Return actually freed bytes for qgroup release or free data
btrfs: qgroup: Cleanup btrfs_qgroup_prepare_account_extents function
btrfs: qgroup: Add quick exit for non-fs extents
Btrfs: rework delayed ref total_bytes_pinned accounting
Btrfs: return old and new total ref mods when adding delayed refs
Btrfs: always account pinned bytes when dropping a tree block ref
Btrfs: update total_bytes_pinned when pinning down extents
Btrfs: make BUG_ON() in add_pinned_bytes() an ASSERT()
Btrfs: make add_pinned_bytes() take an s64 num_bytes instead of u64
btrfs: fix validation of XATTR_ITEM dir items
btrfs: Verify dir_item in iterate_object_props
btrfs: Check name_len before in btrfs_del_root_ref
btrfs: Check name_len before reading btrfs_get_name
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull memdup_user() conversions from Al Viro:
"A fairly self-contained series - hunting down open-coded memdup_user()
and memdup_user_nul() instances"
* 'work.memdup_user' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
bpf: don't open-code memdup_user()
kimage_file_prepare_segments(): don't open-code memdup_user()
ethtool: don't open-code memdup_user()
do_ip_setsockopt(): don't open-code memdup_user()
do_ipv6_setsockopt(): don't open-code memdup_user()
irda: don't open-code memdup_user()
xfrm_user_policy(): don't open-code memdup_user()
ima_write_policy(): don't open-code memdup_user_nul()
sel_write_validatetrans(): don't open-code memdup_user_nul()
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull timer-related user access updates from Al Viro:
"Continuation of timers-related stuff (there had been more, but my
parts of that series are already merged via timers/core). This is more
of y2038 work by Deepa Dinamani, partially disrupted by the
unification of native and compat timers-related syscalls"
* 'timers-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
posix_clocks: Use get_itimerspec64() and put_itimerspec64()
timerfd: Use get_itimerspec64() and put_itimerspec64()
nanosleep: Use get_timespec64() and put_timespec64()
posix-timers: Use get_timespec64() and put_timespec64()
posix-stubs: Conditionally include COMPAT_SYS_NI defines
time: introduce {get,put}_itimerspec64
time: add get_timespec64 and put_timespec64
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull read/write updates from Al Viro:
"Christoph's fs/read_write.c series - consolidation and cleanups"
* 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
nfsd: remove nfsd_vfs_read
nfsd: use vfs_iter_read/write
fs: implement vfs_iter_write using do_iter_write
fs: implement vfs_iter_read using do_iter_read
fs: move more code into do_iter_read/do_iter_write
fs: remove __do_readv_writev
fs: remove do_compat_readv_writev
fs: remove do_readv_writev
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull wait syscall updates from Al Viro:
"Consolidating sys_wait* and compat counterparts.
Gets rid of set_fs()/double-copy mess, simplifies the whole thing
(lifting the copyouts to the syscalls means less headache in the part
that does actual work - fewer failure exits, to start with), gets rid
of the overhead of field-by-field __put_user()"
* 'work.sys_wait' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
osf_wait4: switch to kernel_wait4()
waitid(): switch copyout of siginfo to unsafe_put_user()
wait_task_zombie: consolidate info logics
kill wait_noreap_copyout()
lift getrusage() from wait_noreap_copyout()
waitid(2): leave copyout of siginfo to syscall itself
kernel_wait4()/kernel_waitid(): delay copying status to userland
wait4(2)/waitid(2): separate copying rusage to userland
move compat wait4 and waitid next to native variants
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc user access cleanups from Al Viro:
"The first pile is assorted getting rid of cargo-culted access_ok(),
cargo-culted set_fs() and field-by-field copyouts.
The same description applies to a lot of stuff in other branches -
this is just the stuff that didn't fit into a more specific topical
branch"
* 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
Switch flock copyin/copyout primitives to copy_{from,to}_user()
fs/fcntl: return -ESRCH in f_setown when pid/pgid can't be found
fs/fcntl: f_setown, avoid undefined behaviour
fs/fcntl: f_setown, allow returning error
lpfc debugfs: get rid of pointless access_ok()
adb: get rid of pointless access_ok()
isdn: get rid of pointless access_ok()
compat statfs: switch to copy_to_user()
fs/locks: don't mess with the address limit in compat_fcntl64
nfsd_readlink(): switch to vfs_get_link()
drbd: ->sendpage() never needed set_fs()
fs/locks: pass kernel struct flock to fcntl_getlk/setlk
fs: locks: Fix some troubles at kernel-doc comments
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Every developer always thinks that _their_ code is so special and
magical that it should be enabled by default.
And most of them are completely and utterly wrong. That's definitely
the case when you write a specialty driver for a very unsual "security
processor". It does *not* get to mark itself as "default m".
If you solve world hunger, and make a driver that cures people of
cancer, by all means enable it by default. But afaik, the Cavium
CNN55XX does neither.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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DMA_ERROR_CODE already went away in linux-next, but parisc unfortunately
added a new instance of it without any review as far as I can tell.
Move the two iommu drivers to report errors through ->mapping_error.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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Pull networking updates from David Miller:
"Reasonably busy this cycle, but perhaps not as busy as in the 4.12
merge window:
1) Several optimizations for UDP processing under high load from
Paolo Abeni.
2) Support pacing internally in TCP when using the sch_fq packet
scheduler for this is not practical. From Eric Dumazet.
3) Support mutliple filter chains per qdisc, from Jiri Pirko.
4) Move to 1ms TCP timestamp clock, from Eric Dumazet.
5) Add batch dequeueing to vhost_net, from Jason Wang.
6) Flesh out more completely SCTP checksum offload support, from
Davide Caratti.
7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
Neira Ayuso, and Matthias Schiffer.
8) Add devlink support to nfp driver, from Simon Horman.
9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
Prabhu.
10) Add stack depth tracking to BPF verifier and use this information
in the various eBPF JITs. From Alexei Starovoitov.
11) Support XDP on qed device VFs, from Yuval Mintz.
12) Introduce BPF PROG ID for better introspection of installed BPF
programs. From Martin KaFai Lau.
13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.
14) For loads, allow narrower accesses in bpf verifier checking, from
Yonghong Song.
15) Support MIPS in the BPF selftests and samples infrastructure, the
MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
Daney.
16) Support kernel based TLS, from Dave Watson and others.
17) Remove completely DST garbage collection, from Wei Wang.
18) Allow installing TCP MD5 rules using prefixes, from Ivan
Delalande.
19) Add XDP support to Intel i40e driver, from Björn Töpel
20) Add support for TC flower offload in nfp driver, from Simon
Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
Kicinski, and Bert van Leeuwen.
21) IPSEC offloading support in mlx5, from Ilan Tayari.
22) Add HW PTP support to macb driver, from Rafal Ozieblo.
23) Networking refcount_t conversions, From Elena Reshetova.
24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
for tuning the TCP sockopt settings of a group of applications,
currently via CGROUPs"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
cxgb4: Support for get_ts_info ethtool method
cxgb4: Add PTP Hardware Clock (PHC) support
cxgb4: time stamping interface for PTP
nfp: default to chained metadata prepend format
nfp: remove legacy MAC address lookup
nfp: improve order of interfaces in breakout mode
net: macb: remove extraneous return when MACB_EXT_DESC is defined
bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
bpf: fix return in load_bpf_file
mpls: fix rtm policy in mpls_getroute
net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
...
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"Algorithms:
- add private key generation to ecdh
Drivers:
- add generic gcm(aes) to aesni-intel
- add SafeXcel EIP197 crypto engine driver
- add ecb(aes), cfb(aes) and ecb(des3_ede) to cavium
- add support for CNN55XX adapters in cavium
- add ctr mode to chcr
- add support for gcm(aes) to omap"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (140 commits)
crypto: testmgr - Reenable sha1/aes in FIPS mode
crypto: ccp - Release locks before returning
crypto: cavium/nitrox - dma_mapping_error() returns bool
crypto: doc - fix typo in docs
Documentation/bindings: Document the SafeXel cryptographic engine driver
crypto: caam - fix gfp allocation flags (part II)
crypto: caam - fix gfp allocation flags (part I)
crypto: drbg - Fixes panic in wait_for_completion call
crypto: caam - make of_device_ids const.
crypto: vmx - remove unnecessary check
crypto: n2 - make of_device_ids const
crypto: inside-secure - use the base_end pointer in ring rollback
crypto: inside-secure - increase the batch size
crypto: inside-secure - only dequeue when needed
crypto: inside-secure - get the backlog before dequeueing the request
crypto: inside-secure - stop requeueing failed requests
crypto: inside-secure - use one queue per hw ring
crypto: inside-secure - update the context and request later
crypto: inside-secure - align the cipher and hash send functions
crypto: inside-secure - optimize DSE bufferability control
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull GCC plugin updates from Kees Cook:
"The big part is the randstruct plugin infrastructure.
This is the first of two expected pull requests for randstruct since
there are dependencies in other trees that would be easier to merge
once those have landed. Notably, the IPC allocation refactoring in
-mm, and many trivial merge conflicts across several trees when
applying the __randomize_layout annotation.
As a result, it seemed like I should send this now since it is
relatively self-contained, and once the rest of the trees have landed,
send the annotation patches. I'm expecting the final phase of
randstruct (automatic struct selection) will land for v4.14, but if
its other tree dependencies actually make it for v4.13, I can send
that merge request too.
Summary:
- typo fix in Kconfig (Jean Delvare)
- randstruct infrastructure"
* tag 'gcc-plugins-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
ARM: Prepare for randomized task_struct
randstruct: Whitelist NIU struct page overloading
randstruct: Whitelist big_key path struct overloading
randstruct: Whitelist UNIXCB cast
randstruct: Whitelist struct security_hook_heads cast
gcc-plugins: Add the randstruct plugin
Fix English in description of GCC_PLUGIN_STRUCTLEAK
compiler: Add __designated_init annotation
gcc-plugins: Detail c-common.h location for GCC 4.6
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore updates from Kees Cook:
"Various fixes and tweaks for the pstore subsystem.
Highlights:
- use memdup_user() instead of open-coded copies (Geliang Tang)
- fix record memory leak during initialization (Douglas Anderson)
- avoid confused compressed record warning (Ankit Kumar)
- prepopulate record timestamp and remove redundant logic from
backends"
* tag 'pstore-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
powerpc/nvram: use memdup_user
pstore: use memdup_user
pstore: Fix format string to use %u for record id
pstore: Populate pstore record->time field
pstore: Create common record initializer
efi-pstore: Refactor erase routine
pstore: Avoid potential infinite loop
pstore: Fix leaked pstore_record in pstore_get_backend_records()
pstore: Don't warn if data is uncompressed and type is not PSTORE_TYPE_DMESG
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security layer updates from James Morris:
- a major update for AppArmor. From JJ:
* several bug fixes and cleanups
* the patch to add symlink support to securityfs that was floated
on the list earlier and the apparmorfs changes that make use of
securityfs symlinks
* it introduces the domain labeling base code that Ubuntu has been
carrying for several years, with several cleanups applied. And it
converts the current mediation over to using the domain labeling
base, which brings domain stacking support with it. This finally
will bring the base upstream code in line with Ubuntu and provide
a base to upstream the new feature work that Ubuntu carries.
* This does _not_ contain any of the newer apparmor mediation
features/controls (mount, signals, network, keys, ...) that
Ubuntu is currently carrying, all of which will be RFC'd on top
of this.
- Notable also is the Infiniband work in SELinux, and the new file:map
permission. From Paul:
"While we're down to 21 patches for v4.13 (it was 31 for v4.12),
the diffstat jumps up tremendously with over 2k of line changes.
Almost all of these changes are the SELinux/IB work done by
Daniel Jurgens; some other noteworthy changes include a NFS v4.2
labeling fix, a new file:map permission, and reporting of policy
capabilities on policy load"
There's also now genfscon labeling support for tracefs, which was
lost in v4.1 with the separation from debugfs.
- Smack incorporates a safer socket check in file_receive, and adds a
cap_capable call in privilege check.
- TPM as usual has a bunch of fixes and enhancements.
- Multiple calls to security_add_hooks() can now be made for the same
LSM, to allow LSMs to have hook declarations across multiple files.
- IMA now supports different "ima_appraise=" modes (eg. log, fix) from
the boot command line.
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (126 commits)
apparmor: put back designators in struct initialisers
seccomp: Switch from atomic_t to recount_t
seccomp: Adjust selftests to avoid double-join
seccomp: Clean up core dump logic
IMA: update IMA policy documentation to include pcr= option
ima: Log the same audit cause whenever a file has no signature
ima: Simplify policy_func_show.
integrity: Small code improvements
ima: fix get_binary_runtime_size()
ima: use ima_parse_buf() to parse template data
ima: use ima_parse_buf() to parse measurements headers
ima: introduce ima_parse_buf()
ima: Add cgroups2 to the defaults list
ima: use memdup_user_nul
ima: fix up #endif comments
IMA: Correct Kconfig dependencies for hash selection
ima: define is_ima_appraise_enabled()
ima: define Kconfig IMA_APPRAISE_BOOTPARAM option
ima: define a set of appraisal rules requiring file signatures
ima: extend the "ima_policy" boot command line to support multiple policies
...
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Pull audit updates from Paul Moore:
"Things are relatively quiet on the audit front for v4.13, just five
patches for a total diffstat of 102 lines.
There are two patches from Richard to consistently record the POSIX
capabilities and add the ambient capability information as well.
I also chipped in two patches to fix a race condition with the auditd
tracking code and ensure we don't skip sending any records to the
audit multicast group.
Finally a single style fix that I accepted because I must have been in
a good mood that day.
Everything passes our test suite, and should be relatively harmless,
please merge for v4.13"
* 'stable-4.13' of git://git.infradead.org/users/pcmoore/audit:
audit: make sure we never skip the multicast broadcast
audit: fix a race condition with the auditd tracking code
audit: style fix
audit: add ambient capabilities to CAPSET and BPRM_FCAPS records
audit: unswing cap_* fields in PATH records
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git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Store printk() messages into the main log buffer directly even in NMI
when the lock is available. It is the best effort to print even large
chunk of text. It is handy, for example, when all ftrace messages are
printed during the system panic in NMI.
- Add missing annotations to calm down compiler warnings
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
printk: add __printf attributes to internal functions
printk: Use the main logbuf in NMI when logbuf_lock is available
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attribute_groups are not supposed to change at runtime. All functions
working with attribute_groups provided by <linux/sysfs.h> work with const
attribute_group. So mark the non-const structs as const.
File size before:
text data bss dec hex filename
5259 1344 8 6611 19d3 fs/gfs2/sys.o
File size After adding 'const':
text data bss dec hex filename
5371 1216 8 6595 19c3 fs/gfs2/sys.o
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
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On failure, keep the inode glock across the final iput of the new inode
so that gfs2_evict_inode doesn't have to re-acquire the glock. That
way, gfs2_evict_inode won't need to revalidate the block type.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
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This patch adds a standardized queueing mechanism for glock work
with spin_lock protection to prevent races.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
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Put all remaining accesses to gl->gl_object under the
gl->gl_lockref.lock spinlock to prevent races.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
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So far, gfs2_evict_inode clears gl->gl_object and then flushes the glock
work queue to make sure that inode glops which dereference gl->gl_object
have finished running before the inode is destroyed. However, flushing
the work queue may do more work than needed, and in particular, it may
call into DLM, which we want to avoid here. Use a bit lock
(GIF_GLOP_PENDING) to synchronize between the inode glops and
gfs2_evict_inode instead to get rid of the flushing.
In addition, flush the work queues of existing glocks before reusing
them for new inodes to get those glocks into a known state: the glock
state engine currently doesn't handle glock re-appropriation correctly.
(We may be able to fix the glock state engine instead later.)
Based on a patch by Steven Whitehouse <swhiteho@redhat.com>.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
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Sekhar Nori says:
====================
net: phy: dp83867: workaround incorrect RX_CTRL pin strap
This patch series adds workaround for incorrect RX_CTRL pin strap
setting that can be found on some TI boards.
This is required to be complaint to PHY datamanual specification.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The data manual for DP83867IR/CR, SNLS484E[1], revised march 2017,
advises that strapping RX_DV/RX_CTRL pin in mode 1 and 2 is not
supported (see note below Table 5 (4-Level Strap Pins)).
There are some boards which have the pin strapped this way and need
software workaround suggested by the data manual. Bit[7] of
Configuration Register 4 (address 0x0031) must be cleared to 0. This
ensures proper operation of the PHY.
Implement driver support for device-tree property meant to advertise
the wrong strapping.
[1] http://www.ti.com/lit/ds/snls484e/snls484e.pdf
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
[nsekhar@ti.com: rebase to mainline, code simplification]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The data manual for DP83867IR/CR, SNLS484E[1], revised march 2017,
advises that strapping RX_DV/RX_CTRL pin in mode 1 and 2 is not
supported (see note below Table 5 (4-Level Strap Pins)).
It further advises that if a board has this pin strapped in mode 1 and
mode 2, then to ensure proper operation of the PHY, a software workaround
must be implemented.
Since it is not possible to detect in software if RX_DV/RX_CTRL pin is
incorrectly strapped, add a device-tree property for the board to
advertise this and allow corrective action in software.
[1] http://www.ti.com/lit/ds/snls484e/snls484e.pdf
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
[nsekhar@ti.com: rebase to mainline, split documentation into separate patch]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Atul Gupta says:
====================
cxgb4: Add PTP Hardware Clock (PHC) support
V4:
Splitting the patch again
V3:
Releasing lock in the exit paths
V2:
Splitting the patch
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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