Граф коммитов

551510 Коммитов

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Rasmus Villemoes cfb76d77c0 net: caif: check return value of alloc_netdev
I don't know if dev can actually be NULL here, but the test should be
above alloc_netdev(), to avoid leaking the struct net_device in case
dev is actually NULL. And of course the return value from alloc_netdev
should be tested.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-09 11:31:13 -05:00
Geert Uytterhoeven 3870502a66 net: hisilicon: NET_VENDOR_HISILICON should depend on HAS_DMA
If NO_DMA=y:

    ERROR: "dma_set_mask" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
    ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
    ERROR: "dma_unmap_page" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
    ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
    ERROR: "dma_map_page" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
    ERROR: "dma_supported" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
    ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hns/hns_enet_drv.ko] undefined!
    ERROR: "dma_set_mask" [drivers/net/ethernet/hisilicon/hns/hns_dsaf.ko] undefined!
    ERROR: "dma_supported" [drivers/net/ethernet/hisilicon/hns/hns_dsaf.ko] undefined!
    ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
    ERROR: "dma_unmap_page" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
    ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
    ERROR: "dma_map_page" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
    ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hns/hnae.ko] undefined!
    ERROR: "dma_alloc_coherent" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
    ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
    ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
    ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
    ERROR: "dma_free_coherent" [drivers/net/ethernet/hisilicon/hix5hd2_gmac.ko] undefined!
    ERROR: "dma_alloc_coherent" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
    ERROR: "dma_mapping_error" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
    ERROR: "dma_map_single" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
    ERROR: "dma_unmap_single" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!
    ERROR: "dma_free_coherent" [drivers/net/ethernet/hisilicon/hip04_eth.ko] undefined!

As this affects all of HNS_ENET, HNS_DSAF, HNS, HIX5HD2_GMAC, and
HIP04_ETH, add a dependency on HAS_DMA to the main NET_VENDOR_HISILICON
symbol to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-09 11:19:29 -05:00
Iyappan Subramanian 761d4be5cf drivers: net: xgene: fix RGMII 10/100Mb mode
This patch fixes the RGMII 10/100M mode by reprogramming the clock.

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Fushen Chen <fchen@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 21:00:20 -05:00
David S. Miller b73c8bfd07 Merge branch 'skb_to_full_sk'
Eric Dumazet says:

====================
net: add skb_to_full_sk() helper

Many contexts need to reach listener socket from skb attached
to a request socket. This patch series add skb_to_full_sk() to
clearly express this need and use it where appropriate.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:56:39 -05:00
Eric Dumazet 3aed822591 netfilter: nft_meta: use skb_to_full_sk() helper
SYNACK packets might be attached to request sockets.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:56:39 -05:00
Eric Dumazet 02a56c81cf net_sched: em_meta: use skb_to_full_sk() helper
SYNACK packets might be attached to request sockets.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:56:39 -05:00
Eric Dumazet 743b2a6674 sched: cls_flow: use skb_to_full_sk() helper
SYNACK packets might be attached to request sockets.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:56:39 -05:00
Eric Dumazet fdd723e2a8 netfilter: xt_owner: use skb_to_full_sk() helper
SYNACK packets might be attached to a request socket,
xt_owner wants to gte the listener in this case.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:56:39 -05:00
Eric Dumazet 8827d90e29 smack: use skb_to_full_sk() helper
This module wants to access sk->sk_security, which is not
available for request sockets.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:56:38 -05:00
Eric Dumazet 54abc686c2 net: add skb_to_full_sk() helper and use it in selinux_netlbl_skbuff_setsid()
Generalize selinux_skb_sk() added in commit 212cd08953
("selinux: fix random read in selinux_ip_postroute_compat()")
so that we can use it other contexts.

Use it right away in selinux_netlbl_skbuff_setsid()

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:56:38 -05:00
David S. Miller fb9a10d9d8 NFC 4.4 fixes
This is the 1st NFC fixes pull request for 4.4.
 
 It includes bug fixes and one fix for a build failure, all of them
 introduced with the first NFC pull request for 4.4.
 
 We have:
 
 - Fix nfcmrvl SPI driver potential build error due to a broken Kconfig
   dependency.
 - A few fixes for the firmware download implementation for the nfcmrvl
   UART driver.
 - A GPIO allocation leak for the nfcmrvl driver.
 - One code simplification for the nfcmrvl DT handling.
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Merge tag 'nfc-fixes-4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-fixes

Samuel Ortiz says:

====================
NFC 4.4 fixes

This is the 1st NFC fixes pull request for 4.4.

It includes bug fixes and one fix for a build failure, all of them
introduced with the first NFC pull request for 4.4.

We have:

- Fix nfcmrvl SPI driver potential build error due to a broken Kconfig
  dependency.
- A few fixes for the firmware download implementation for the nfcmrvl
  UART driver.
- A GPIO allocation leak for the nfcmrvl driver.
- One code simplification for the nfcmrvl DT handling.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:47:26 -05:00
Yang Shi d0b891415f bpf: doc: correct arch list for supported eBPF JIT
aarch64 and s390x support eBPF JIT too, correct document to reflect this and
avoid any confusion.

Signed-off-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-08 20:46:48 -05:00
Markus Elfring 3694bfbdb3 dwc_eth_qos: Delete an unnecessary check before the function call "of_node_put"
The of_node_put() function tests whether its argument is NULL
and then returns immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-07 13:17:32 -05:00
Jay Vosburgh 40baec2257 bonding: fix panic on non-ARPHRD_ETHER enslave failure
Since commit 7d5cd2ce529b, when bond_enslave fails on devices that
are not ARPHRD_ETHER, if needed, it resets the bonding device back to
ARPHRD_ETHER by calling ether_setup.

	Unfortunately, ether_setup clobbers dev->flags, clearing IFF_UP
if the bond device is up, leaving it in a quasi-down state without
having actually gone through dev_close.  For bonding, if any periodic
work queue items are active (miimon, arp_interval, etc), those will
remain running, as they are stopped by bond_close.  At this point, if
the bonding module is unloaded or the bond is deleted, the system will
panic when the work function is called.

	This panic is resolved by calling dev_close on the bond itself
prior to calling ether_setup.

Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Fixes: 7d5cd2ce52 ("bonding: correctly handle bonding type change on enslave failure")
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-07 13:17:32 -05:00
Jarod Wilson e824de8ae2 net/qlcnic: fix mac address restore in bond mode 5/6
The bonding driver saves a copy of slaves' original mac address and then
assigns whatever mac as needed to the slave, depending on mode. In at
least modes 5 and 6 (balance-tlb, balance-alb), it often ends up being the
mac address of another slave. On release from the bond, the original mac
address is supposed to get restored via a dev_set_mac_address() call in
the bonding driver's __bond_release_one() function, which calls the
slave's ndo_set_mac_address function, which for qlcnic, is
qlcnic_set_mac().

Now, this function tries to be somewhat intelligent and exit early if
you're trying to set the mac address to the same thing that is already
set. The problem here is that adapter->mac_addr isn't in sync with
netdev->dev_addr. The qlcnic driver still has the original mac stored in
adapter->mac_addr, while the bonding driver has updated netdev->dev_addr,
so qlcnic thinks we're trying to set the same address it already has.

I think the way to go here, since the function updates both netdev and
adapter's stored mac addresses, is to check if either of them doesn't
match the newly requested mac. Simply checking netdev's value only could
result in a similar mismatch and non-update, so look at both.

CC: Dept-GELinuxNICDev@qlogic.com
CC: netdev@vger.kernel.org
CC: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-07 13:17:31 -05:00
Markus Elfring f7b5964d4d fjes: Delete an unnecessary check before the function call "vfree"
The vfree() function performs also input parameter validation.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-07 13:17:31 -05:00
Eric Dumazet 212cd08953 selinux: fix random read in selinux_ip_postroute_compat()
In commit e446f9dfe1 ("net: synack packets can be attached to request
sockets"), I missed one remaining case of invalid skb->sk->sk_security
access.

Dmitry Vyukov got a KASan report pointing to it.

Add selinux_skb_sk() helper that is responsible to get back to the
listener if skb is attached to a request socket, instead of
duplicating the logic.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 16:45:51 -05:00
David S. Miller 432599d7a7 Merge branch 'bnxt_en-fixes'
Michael Chan says:

====================
bnxt_en: Bug fixes.

Miscellaneous small bug fixes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 16:33:10 -05:00
Jeffrey Huang 4bb6cdce38 bnxt_en: More robust SRIOV cleanup sequence.
Instead of always calling pci_sriov_disable() in remove_one(),
the driver should detect whether VFs are currently assigned
to the VMs. If the VFs are active in VMs, then it should not
disable SRIOV as it is catastrophic to the VMs. Instead,
it just leaves the VFs alone and continues to unload the PF.
The user can then cleanup the VMs even after the PF driver
has been unloaded.

Signed-off-by: Jeffrey Huang <huangjw@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 16:33:09 -05:00
Michael Chan 84e86b98f6 bnxt_en: Fix comparison of u16 sw_id against negative value.
Assign the return value from bitmap_find_free_region() to an integer
variable and check for negative error codes first, before assigning
the bit ID to the unsigned sw_id field.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 16:33:09 -05:00
Jeffrey Huang 11809490ac bnxt_en: map CAG_REG_LEGACY_INT_STATUS_MASK to GRC window #4
In order to use offset 0x4014 for reading CAG interrupt status,
the actual CAG register must be mapped to GRC bar0 window #4.
Otherwise, the driver is reading garbage. This patch corrects
this issue.

Signed-off-by: Jeffrey Huang <huangjw@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 16:33:08 -05:00
Michael Chan 614388ce39 bnxt_en: Determine tcp/ipv6 RSS hash type correctly.
The profile ID in the completion record needs to be ANDed with the
profile ID mask of 0x1f.  This bug was causing the SKB hash type
and the gso_type to be wrong in some cases.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 16:33:08 -05:00
Jeffrey Huang c5d7774db3 bnxt_en: Change sp events definitions to represent bit position.
Fix the sp event bits to be bit positions instead of bit values since
the bit helper functions are expecting the former.

Signed-off-by: Jeffrey Huang <huangjw@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 16:33:08 -05:00
Eric Dumazet 49a496c97d tcp: use correct req pointer in tcp_move_syn() calls
I mistakenly took wrong request sock pointer when calling tcp_move_syn()

@req_unhash is either a copy of @req, or a NULL value for
FastOpen connexions (as we do not expect to unhash the temporary
request sock from ehash table)

Fixes: 805c4bc057 ("tcp: fix req->saved_syn race")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ying Cai <ycai@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 15:57:51 -05:00
Francesco Ruggeri 30f7ea1c2b packet: race condition in packet_bind
There is a race conditions between packet_notifier and packet_bind{_spkt}.

It happens if packet_notifier(NETDEV_UNREGISTER) executes between the
time packet_bind{_spkt} takes a reference on the new netdevice and the
time packet_do_bind sets po->ifindex.
In this case the notification can be missed.
If this happens during a dev_change_net_namespace this can result in the
netdevice to be moved to the new namespace while the packet_sock in the
old namespace still holds a reference on it. When the netdevice is later
deleted in the new namespace the deletion hangs since the packet_sock
is not found in the new namespace' &net->packet.sklist.
It can be reproduced with the script below.

This patch makes packet_do_bind check again for the presence of the
netdevice in the packet_sock's namespace after the synchronize_net
in unregister_prot_hook.
More in general it also uses the rcu lock for the duration of the bind
to stop dev_change_net_namespace/rollback_registered_many from
going past the synchronize_net following unlist_netdevice, so that
no NETDEV_UNREGISTER notifications can happen on the new netdevice
while the bind is executing. In order to do this some code from
packet_bind{_spkt} is consolidated into packet_do_dev.

import socket, os, time, sys
proto=7
realDev='em1'
vlanId=400
if len(sys.argv) > 1:
   vlanId=int(sys.argv[1])
dev='vlan%d' % vlanId

os.system('taskset -p 0x10 %d' % os.getpid())

s = socket.socket(socket.PF_PACKET, socket.SOCK_RAW, proto)
os.system('ip link add link %s name %s type vlan id %d' %
          (realDev, dev, vlanId))
os.system('ip netns add dummy')

pid=os.fork()

if pid == 0:
   # dev should be moved while packet_do_bind is in synchronize net
   os.system('taskset -p 0x20000 %d' % os.getpid())
   os.system('ip link set %s netns dummy' % dev)
   os.system('ip netns exec dummy ip link del %s' % dev)
   s.close()
   sys.exit(0)

time.sleep(.004)
try:
   s.bind(('%s' % dev, proto+1))
except:
   print 'Could not bind socket'
   s.close()
   os.system('ip netns del dummy')
   sys.exit(0)

os.waitpid(pid, 0)
s.close()
os.system('ip netns del dummy')
sys.exit(0)

Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 14:48:42 -05:00
Eric Dumazet f668f5f7e0 ipv4: use sk_fullsock() in ipv4_conntrack_defrag()
Before converting a 'socket pointer' into inet socket,
use sk_fullsock() to detect timewait or request sockets.

Fixes: ca6fb06518 ("tcp: attach SYNACK messages to request sockets instead of listener")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 14:36:09 -05:00
Eric Dumazet 805c4bc057 tcp: fix req->saved_syn race
For the reasons explained in commit ce1050089c ("tcp/dccp: fix
ireq->pktopts race"), we need to make sure we do not access
req->saved_syn unless we own the request sock.

This fixes races for listeners using TCP_SAVE_SYN option.

Fixes: e994b2f0fb ("tcp: do not lock listener to process SYN packets")
Fixes: 079096f103 ("tcp/dccp: install syn_recv requests into ehash table")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Ying Cai <ycai@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 14:36:09 -05:00
LABBE Corentin 428ad1bc6d net: stmmac: fix double-initialization of phy_iface
The variable phy_iface is double-initialized to itself.
This patch remove that.

Reported-by: coverity (CID 1271141)
Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 14:09:26 -05:00
Dan Carpenter 9b15acbfe9 qlogic: qed: fix error codes in qed_resc_alloc()
We accidentally return success instead of -ENOMEM here.

Fixes: fe56b9e6a8 ('qed: Add module with basic common support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 13:39:31 -05:00
Vivien Didelot e79a8bcb78 net: dsa: mv88e6xxx: isolate unbridged ports
The DSA documentation specifies that each port must be capable of
forwarding frames to the CPU port. The last changes on bridging support
for the mv88e6xxx driver broke this requirement for non-bridged ports.

So as for the bridged ports, reserve a few VLANs (4000+) in the switch
to isolate ports that have not been bridged yet.

By default, a port will be isolated with the CPU and DSA ports. When the
port joins a bridge, it will leave its reserved port. When it is removed
from a bridge, it will join its reserved VLAN again.

Fixes: 5fe7f68016 ("net: dsa: mv88e6xxx: fix hardware bridging")
Reported-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 13:37:23 -05:00
Petr Štetiar b3d8cf019f USB: qmi_wwan: Add quirk for Quectel EC20 Mini PCIe module
This device has same vendor and product IDs as G2K devices, but it has
different number of interfaces(4 vs 5) and also different interface
layout where EC20 has QMI on interface 4 instead of 0.

lsusb output:

	Bus 002 Device 003: ID 05c6:9215 Qualcomm, Inc. Acer Gobi 2000
	Device Descriptor:
	  bLength                18
	  bDescriptorType         1
	  bcdUSB               2.00
	  bDeviceClass            0 (Defined at Interface level)
	  bDeviceSubClass         0
	  bDeviceProtocol         0
	  bMaxPacketSize0        64
	  idVendor           0x05c6 Qualcomm, Inc.
	  idProduct          0x9215 Acer Gobi 2000 Wireless Modem
	  bcdDevice            2.32
	  iManufacturer           1 Quectel
	  iProduct                2 Quectel LTE Module
	  iSerial                 0
	  bNumConfigurations      1
	  Configuration Descriptor:
	    bLength                 9
	    bDescriptorType         2
	    wTotalLength          209
	    bNumInterfaces          5
	    bConfigurationValue     1
	    iConfiguration          0
	    bmAttributes         0xa0
	      (Bus Powered)
	      Remote Wakeup
	    MaxPower              500mA

Signed-off-by: Petr Štetiar <ynezz@true.cz>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 11:39:56 -05:00
David S. Miller 096273304c Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Johan Hedberg says:

====================
pull request: bluetooth 2015-11-05

The following set of Bluetooth patches would be good to get into 4.4-rc1
if possible:

 - Fix for missing LE CoC parameter validity checks
 - Fix for potential deadlock in btusb
 - Fix for issuing unsupported commands during HCI init

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 11:38:06 -05:00
Yang Shi d4e4bc1610 bpf: add mod default A and X test cases
When running "mod X" operation, if X is 0 the filter has to be halt.
Add new test cases to cover A = A mod X if X is 0, and A = A mod 1.

CC: Xi Wang <xi.wang@gmail.com>
CC: Zi Shen Lim <zlim.lnx@gmail.com>
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Zi Shen Lim <zlim.lnx@gmail.com>
Acked-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 00:05:50 -05:00
Arnd Bergmann df761ea1f3 bnxt_en: add VXLAN dependency
VXLAN may be a loadable module, and this driver cannot be built-in
in that case, or we get a link error:

drivers/built-in.o: In function `__bnxt_open_nic':
drivers/net/ethernet/broadcom/bnxt/bnxt.c:4581: undefined reference to `vxlan_get_rx_port'

This adds a Kconfig dependency that ensures that either VXLAN is
disabled (which the driver handles correctly), or we depend on
VXLAN itself and disallow built-in compilation when VXLAN is
a module.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: c0c050c58d ("bnxt_en: New Broadcom ethernet driver.")
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-05 00:00:25 -05:00
Jiri Pirko 8f25348b65 net: add forgotten IFF_L3MDEV_SLAVE define
Fixes: fee6d4c77 ("net: Add netif_is_l3_slave")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 23:59:40 -05:00
Sabrina Dubroca 2a189f9e57 ipv6: clean up dev_snmp6 proc entry when we fail to initialize inet6_dev
In ipv6_add_dev, when addrconf_sysctl_register fails, we do not clean up
the dev_snmp6 entry that we have already registered for this device.
Call snmp6_unregister_dev in this case.

Fixes: a317a2f19d ("ipv6: fail early when creating netdev named all or default")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 23:49:48 -05:00
Dan Carpenter 87aec47d17 qlogic: qed: fix a test for MODE_MF_SI
MODE_MF_SI is 9.  We should be testing bit 9 instead of AND 0x9.

Fixes: fe56b9e6a8 ('qed: Add module with basic common support')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 22:06:13 -05:00
Dan Carpenter 8c169c28f4 qlogic/qed: remove bogus NULL check
We check if "p_hwfn" is NULL and then dereference it in the error
handling code.  I read the code and it isn't NULL so let's remove the
check.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 22:06:13 -05:00
Johan Hedberg 40624183c2 Bluetooth: L2CAP: Add missing checks for invalid LE DCID
When receiving a connect response we should make sure that the DCID is
within the valid range and that we don't already have another channel
allocated for the same DCID.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-11-05 04:04:15 +01:00
Johan Hedberg ab0c127fbb Bluetooth: L2CAP: Fix checked range when allocating new CID
The 'dyn_end' value is also a valid CID so it should be included in
the range of values checked.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-11-05 04:04:07 +01:00
Johan Hedberg 8a7889cc6e Bluetooth: L2CAP: Fix returning correct LE CoC response codes
The core spec defines specific response codes for situations when the
received CID is incorrect. Add the defines for these and return them
as appropriate from the LE Connect Request handler function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-11-05 04:04:00 +01:00
Marcel Holtmann 2ab216a7a9 Bluetooth: Check for supported white list before issuing commands
The white list commands might not be implemented if the controller does
not actually support the white list. So check the supported commands
first before issuing these commands. Not supporting the white list is
the same as supporting a white list with zero size.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2015-11-05 04:03:21 +01:00
Kuba Pawlak f6fc86f2c5 Bluetooth: Fix possible deadlock in btusb
commit 8f9d02f470 introduced spinlocks
in btusb_work. This is run in a context of a worqueue and can be interrupted
by hardware irq. If it happens while spinlock is held, we have a deadlock.
Solution is to use _irqsave/_resore version of locking

[  466.460560] =================================
[  466.460565] [ INFO: inconsistent lock state ]
[  466.460572] 4.3.0-rc6+ #1 Tainted: G        W
[  466.460576] ---------------------------------
[  466.460582] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
[  466.460589] kworker/0:2/94 [HC0[0]:SC0[0]:HE1:SE1] takes:
[  466.460595]  (&(&data->rxlock)->rlock){?.-...}, at: [<ffffffffa0526923>] btusb_work+0xa3/0x3fd [btusb]
[  466.460621] {IN-HARDIRQ-W} state was registered at:
[  466.460625]   [<ffffffff811021b5>] __lock_acquire+0xc45/0x1e80
[  466.460638]   [<ffffffff811040d5>] lock_acquire+0xe5/0x1f0
[  466.460646]   [<ffffffff8182f108>] _raw_spin_lock+0x38/0x50
[  466.460657]   [<ffffffffa0525448>] btusb_recv_intr+0x38/0x170 [btusb]
[  466.460668]   [<ffffffffa0525626>] btusb_intr_complete+0xa6/0x130 [btusb]
[  466.460679]   [<ffffffff815d8f1e>] __usb_hcd_giveback_urb+0x8e/0x160
[  466.460690]   [<ffffffff815d911f>] usb_hcd_giveback_urb+0x3f/0x120
[  466.460698]   [<ffffffff81606e4d>] uhci_giveback_urb+0xad/0x280
[  466.460706]   [<ffffffff81608f64>] uhci_scan_schedule.part.33+0x6b4/0xbe0
[  466.460714]   [<ffffffff81609b50>] uhci_irq+0xd0/0x180
[  466.460722]   [<ffffffff815d8296>] usb_hcd_irq+0x26/0x40
[  466.460729]   [<ffffffff81117d40>] handle_irq_event_percpu+0x40/0x300
[  466.460739]   [<ffffffff81118040>] handle_irq_event+0x40/0x60
[  466.460746]   [<ffffffff8111af39>] handle_fasteoi_irq+0x89/0x150
[  466.460754]   [<ffffffff8101e0f3>] handle_irq+0x73/0x120
[  466.460763]   [<ffffffff81832f11>] do_IRQ+0x61/0x120
[  466.460772]   [<ffffffff8183084c>] ret_from_intr+0x0/0x31
[  466.460780]   [<ffffffff81697a77>] cpuidle_enter+0x17/0x20
[  466.460790]   [<ffffffff810f62c2>] call_cpuidle+0x32/0x60
[  466.460800]   [<ffffffff810f65a8>] cpu_startup_entry+0x2b8/0x3f0
[  466.460807]   [<ffffffff818214ca>] rest_init+0x13a/0x140
[  466.460817]   [<ffffffff81f76029>] start_kernel+0x4a3/0x4c4
[  466.460827]   [<ffffffff81f75339>] x86_64_start_reservations+0x2a/0x2c
[  466.460837]   [<ffffffff81f75485>] x86_64_start_kernel+0x14a/0x16d
[  466.460846] irq event stamp: 754913
[  466.460851] hardirqs last  enabled at (754913): [<ffffffff8182f4cc>] _raw_spin_unlock_irq+0x2c/0x40
[  466.460861] hardirqs last disabled at (754912): [<ffffffff8182f28d>] _raw_spin_lock_irq+0x1d/0x60
[  466.460869] softirqs last  enabled at (753024): [<ffffffff810aeaa0>] __do_softirq+0x380/0x490
[  466.460880] softirqs last disabled at (753009): [<ffffffff810aedef>] irq_exit+0x10f/0x120
[  466.460888]
               other info that might help us debug this:
[  466.460894]  Possible unsafe locking scenario:

[  466.460899]        CPU0
[  466.460903]        ----
[  466.460907]   lock(&(&data->rxlock)->rlock);
[  466.460915]   <Interrupt>
[  466.460918]     lock(&(&data->rxlock)->rlock);
[  466.460926]
                *** DEADLOCK ***

[  466.460935] 2 locks held by kworker/0:2/94:
[  466.460939]  #0:  ("events"){.+.+.+}, at: [<ffffffff810c69bb>] process_one_work+0x16b/0x660
[  466.460958]  #1:  ((&data->work)){+.+...}, at: [<ffffffff810c69bb>] process_one_work+0x16b/0x660
[  466.460974]

Signed-off-by: Kuba Pawlak <kubax.t.pawlak@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-11-05 04:03:11 +01:00
Stefan Hajnoczi 7362945aea VSOCK: call sk->sk_data_ready() on accept()
When a listen socket enqueues a connection for userspace to accept(),
the sk->sk_data_ready() callback should be invoked.  In-kernel socket
users rely on this callback to detect when incoming connections are
available.

Currently the sk->sk_state_change() callback is invoked by
vmci_transport.c.  This happens to work for userspace applications since
sk->sk_state_change = sock_def_wakeup() and sk->sk_data_ready =
sock_def_readable() both wake up the accept() waiter.  In-kernel socket
users, on the other hand, fail to detect incoming connections.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 22:03:10 -05:00
Tobias Klauser f63ce5b6fa tun_dst: Fix potential NULL dereference
In tun_dst_unclone() the return value of skb_metadata_dst() is checked
for being NULL after it is dereferenced. Fix this by moving the
dereference after the NULL check.

Found by the Coverity scanner (CID 1338068).

Fixes: fc4099f172 ("openvswitch: Fix egress tunnel info.")
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 21:59:22 -05:00
Jarod Wilson e7868a85e1 net/core: ensure features get disabled on new lower devs
With moving netdev_sync_lower_features() after the .ndo_set_features
calls, I neglected to verify that devices added *after* a flag had been
disabled on an upper device were properly added with that flag disabled as
well. This currently happens, because we exit __netdev_update_features()
when we see dev->features == features for the upper dev. We can retain the
optimization of leaving without calling .ndo_set_features with a bit of
tweaking and a goto here.

Fixes: fd867d51f8 ("net/core: generic support for disabling netdev features down stack")
CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <gospo@cumulusnetworks.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Nikolay Aleksandrov <razor@blackwall.org>
CC: Michal Kubecek <mkubecek@suse.cz>
CC: Alexander Duyck <alexander.duyck@gmail.com>
CC: netdev@vger.kernel.org
Reported-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 21:56:00 -05:00
David Ahern e1b8d903c6 net: Fix prefsrc lookups
A bug report (https://bugzilla.kernel.org/show_bug.cgi?id=107071) noted
that the follwoing ip command is failing with v4.3:

    $ ip route add 10.248.5.0/24 dev bond0.250 table vlan_250 src 10.248.5.154
    RTNETLINK answers: Invalid argument

021dd3b8a1 changed the lookup of the given preferred source address to
use the table id passed in, but this assumes the local entries are in the
given table which is not necessarily true for non-VRF use cases. When
validating the preferred source fallback to the local table on failure.

Fixes: 021dd3b8a1 ("net: Add routes to the table associated with the device")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 21:34:37 -05:00
WANG Cong 87e9f03159 ipv4: fix a potential deadlock in mcast getsockopt() path
Sasha reported the following lockdep warning:

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(sk_lock-AF_INET);
                                lock(rtnl_mutex);
                                lock(sk_lock-AF_INET);
   lock(rtnl_mutex);

This is due to that for IP_MSFILTER and MCAST_MSFILTER, we take
rtnl lock before the socket lock in setsockopt() path, but take
the socket lock before rtnl lock in getsockopt() path. All the
rest optnames are setsockopt()-only.

Fix this by aligning the getsockopt() path with the setsockopt()
path, so that all mcast socket path would be locked in the same
order.

Note, IPv6 part is different where rtnl lock is not held.

Fixes: 54ff9ef36b ("ipv4, ipv6: kill ip_mc_{join, leave}_group and ipv6_sock_mc_{join, drop}")
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 21:29:59 -05:00
WANG Cong 4ee3bd4a8c ipv4: disable BH when changing ip local port range
This fixes the following lockdep warning:

 [ INFO: inconsistent lock state ]
 4.3.0-rc7+ #1197 Not tainted
 ---------------------------------
 inconsistent {IN-SOFTIRQ-R} -> {SOFTIRQ-ON-W} usage.
 sysctl/1019 [HC0[0]:SC0[0]:HE1:SE1] takes:
  (&(&net->ipv4.ip_local_ports.lock)->seqcount){+.+-..}, at: [<ffffffff81921de7>] ipv4_local_port_range+0xb4/0x12a
 {IN-SOFTIRQ-R} state was registered at:
   [<ffffffff810bd682>] __lock_acquire+0x2f6/0xdf0
   [<ffffffff810be6d5>] lock_acquire+0x11c/0x1a4
   [<ffffffff818e599c>] inet_get_local_port_range+0x4e/0xae
   [<ffffffff8166e8e3>] udp_flow_src_port.constprop.40+0x23/0x116
   [<ffffffff81671cb9>] vxlan_xmit_one+0x219/0xa6a
   [<ffffffff81672f75>] vxlan_xmit+0xa6b/0xaa5
   [<ffffffff817f2deb>] dev_hard_start_xmit+0x2ae/0x465
   [<ffffffff817f35ed>] __dev_queue_xmit+0x531/0x633
   [<ffffffff817f3702>] dev_queue_xmit_sk+0x13/0x15
   [<ffffffff818004a5>] neigh_resolve_output+0x12f/0x14d
   [<ffffffff81959cfa>] ip6_finish_output2+0x344/0x39f
   [<ffffffff8195bf58>] ip6_finish_output+0x88/0x8e
   [<ffffffff8195bfef>] ip6_output+0x91/0xe5
   [<ffffffff819792ae>] dst_output_sk+0x47/0x4c
   [<ffffffff81979392>] NF_HOOK_THRESH.constprop.30+0x38/0x82
   [<ffffffff8197981e>] mld_sendpack+0x189/0x266
   [<ffffffff8197b28b>] mld_ifc_timer_expire+0x1ef/0x223
   [<ffffffff810de581>] call_timer_fn+0xfb/0x28c
   [<ffffffff810ded1e>] run_timer_softirq+0x1c7/0x1f1

Fixes: b8f1a55639 ("udp: Add function to make source port for UDP tunnels")
Cc: Tom Herbert <tom@herbertland.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 21:29:06 -05:00
Sergei Shtylyov 8e03a5e75c sh_eth: merge sh_eth_free_dma_buffer() into sh_eth_ring_free()
While the ring allocation is done by a single function, sh_eth_ring_init(),
the ring deallocation was split into two functions (almost always called
one after the other) for no good reason. Merge  sh_eth_free_dma_buffer()
into sh_eth_ring_free() which allows us  to save space not only on the
direct calls  of the former function but also on the sh_eth_ring_init()'s
simplified error path...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-04 20:59:07 -05:00