| Commit message (Collapse) | Author | Age |
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The veth device doesn't provide the vlan features,
so TSO for example is disabled and that causes
performance issues when using tagged traffic.
The test topology looks like this:
br0 br1
/ \ / \
vnet veth0.10 ----- veth1.10 vnet
VM VM
The netperf results with current veth driver:
MIGRATED TCP STREAM TEST from 192.168.1.1 ()
port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.01 2210.22
Now after applying the proposed patch:
MIGRATED TCP STREAM TEST from 192.168.1.1 ()
port 0 AF_INET to 192.168.1.2 () port 0 AF_INET
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 13067.47
Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Clear cached vport vlan variable(vp->vlan) in PF on PCI FLR and
back-channel termination which will allow to configure guest VLAN
on VF after force off/shut down the guest VM.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Driver was freeing Tx frag which was never mapped before which
result into panic as kernel was unable to handle paging request.
BUG: unable to handle kernel paging request at ffffc9002552a000
IP: [<ffffffffa05ed762>] qlcnic_release_tx_buffers+0x72/0x170 [qlcnic]
PGD 87fc15067 PUD 47febf067 PMD 4758c5067 PTE 0
Oops: 0000 [#1] SMP
crash> bt
PID: 27343 TASK: ffff8802a5de8080 CPU: 27 COMMAND: "ifconfig"
[ffff8802a34b3850] machine_kexec at ffffffff81035b7b
[ffff8802a34b38b0] crash_kexec at ffffffff810c0db2
[ffff8802a34b3980] oops_end at ffffffff815111d0
[ffff8802a34b39b0] no_context at ffffffff81046bfb
[ffff8802a34b3a00] __bad_area_nosemaphore at ffffffff81046e85
[ffff8802a34b3a50] bad_area_nosemaphore at ffffffff81046f53
[ffff8802a34b3a60] __do_page_fault at ffffffff810476b1
[ffff8802a34b3b80] do_page_fault at ffffffff8151311e
[ffff8802a34b3bb0] page_fault at ffffffff815104d5
[exception RIP: qlcnic_release_tx_buffers+114]
RIP: ffffffffa05ed762 RSP: ffff8802a34b3c68 RFLAGS: 00010246
RAX: ffff88087989c000 RBX: ffffc90025529ff8 RCX: 0000000000000001
RDX: 0000000000000013 RSI: 0000000000000013 RDI: 0000000000000000
RBP: ffff8802a34b3ca8 R8: 0000000000000000 R9: 0000000000000000
R10: 000000000000000c R11: 0000000000000000 R12: 0000000000000012
R13: ffffc90025529ec0 R14: ffff880761e876e0 R15: 00000000000003ff
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
[ffff8802a34b3cb0] __qlcnic_down at ffffffffa05e8b15 [qlcnic]
[ffff8802a34b3d00] qlcnic_close at ffffffffa05e8b78 [qlcnic]
[ffff8802a34b3d10] dev_close at ffffffff81449d81
[ffff8802a34b3d30] dev_change_flags at ffffffff814495c1
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Driver was using wrong mask for template version.
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Commit b938662d88264c1a92611ca1b82fdff5a4e87121
("qlcnic: Fix ethtool supported port status for 83xx")
introduced regression for display of link status for 83xx
adapter while refactoring port status display. This patch
is to fix the link status display for 83xx adapter.
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o "qlcnic_sriov" structure pointer should be accessed only
when SR-IOV is enabled. Access this pointer after SR-IOV
PF check.
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Multicast MAC was not getting programmed due to which multicast
packets were being dropped by FW.
This patch fixes commit 168e4fb54c11865668ad50eff81b5f2729e0e0f4
("qlcnic: Secondary unicast MAC address support.") which introduced
bug in handling multicast packets.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Check for non-NULL set_mac_filter_count function pointer
before calling it fixes the panic.
This patch fixes regression introduced by patch
"qlcnic: Secondary unicast MAC address support." with
commit id 168e4fb54c11865668ad50eff81b5f2729e0e0f4.
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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NAPI poll function does not re-enable the interrupt, if __QLCNIC_DEV_UP is not set
in adapter state. This was preventing driver from receiving any packet.
Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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83xx adapter specific code was accessing 82xx register which
resulted in invalid register offset. This patch uses proper
register access method.
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are two race conditions in existing code for doing IGMP
management in workqueue in vxlan. First, the vxlan_group_used
function checks the list of vxlan's without any protection, and
it is possible for open followed by close to occur before the
igmp work queue runs.
To solve these move the check into vxlan_open/stop so it is
protected by RTNL. And split into two work structures so that
there is no racy reference to underlying device state.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix memory leaks and other badness from VXLAN network namespace
teardown. When network namespace is removed, all the vxlan devices should
be unregistered (not closed).
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull MIPS fixes from Ralf Baechle:
- BMIPS SMP fixes
- a build fix necessary for older compilers
- two more bugs found my Chandras' testing
- and one more build fix
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: BMIPS: fix slave CPU booting when physical CPU is not 0
MIPS: BMIPS: do not change interrupt routing depending on boot CPU
MIPS: powertv: Fix arguments for free_reserved_area()
MIPS: Set default CPU type for BCM47XX platforms
MIPS: uapi/asm/siginfo.h: Fix GCC 4.1.2 compilation
MIPS: Fix multiple definitions of UNCAC_BASE.
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The current BMIPS SMP code assumes that the slave CPU is physical and
logical CPU 1, but on some systems such as BCM3368, the slave CPU is
physical CPU0. Fix the code to read the physical CPU (thread ID) we are
running this code on, and adjust the relocation vector address based on
it. This allows bringing up the second CPU on BCM3368 for instance.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: cernekee@gmail.com
Cc: jogo@openwrt.org
Cc: blogic@openwrt.org
Patchwork: https://patchwork.linux-mips.org/patch/5621/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Commit 4df715aa ("MIPS: BMIPS: support booting from physical CPU other
than 0") changed the interupt routing when we are booting from physical
CPU 0, but the settings are actually correct if we are booting from
physical CPU 0 or CPU 1. Revert that specific change.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: cernekee@gmail.com
Cc: jogo@openwrt.org
Cc: blogic@openwrt.org
Patchwork: https://patchwork.linux-mips.org/patch/5622/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Commit 6e7582bf35b8a5a330fd08b398ae445bac86917a
"MIPS: PowerTV: use free_reserved_area() to simplify code"
merged in 3.11-rc1, broke the build for the powertv defconfig with
the following build error:
arch/mips/powertv/asic/asic_devices.c: In function 'platform_release_memory':
arch/mips/powertv/asic/asic_devices.c:533:7: error: passing argument 1 of
'free_reserved_area' makes pointer from integer without a cast [-Werror]
The free_reserved_area() function expects a void * pointer for the start
address and a void * pointer for the end one.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5624/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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If neither BCM47XX_SSD nor BCM47XX_BCMA is selected, then no
CPU type is available leading to build problems. We fix
this problem by using MIPS32r1 as the default CPU type for
the BCM47XX platform.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Acked-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5618/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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It wasn't until GCC 4.3 I believe that the __SIZEOF_*__ predefined macros
were added. The change below switches <uapi/asm/siginfo.h> to the
_MIPS_SZLONG macro so that compilation with e.g. GCC 4.1.2 succeeds.
This is a user API header so I think this is even more important, for
older userland support. The change adds an unsuccessful default too, to
catch any compiler configuration oddities.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5630/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Fix build error below:
arch/mips/include/asm/mach-generic/spaces.h:29:0: warning:
"UNCAC_BASE" redefined [enabled by default]
In file included from arch/mips/include/asm/addrspace.h:13:0,
from arch/mips/include/asm/barrier.h:11,
from arch/mips/include/asm/bitops.h:18,
from include/linux/bitops.h:22,
from include/linux/kernel.h:10,
from include/asm-generic/bug.h:13,
from arch/mips/include/asm/bug.h:41,
from include/linux/bug.h:4,
from include/linux/page-flags.h:9,
from kernel/bounds.c:9:
arch/mips/include/asm/mach-ar7/spaces.h:20:0: note: this is the
location of the previous definition
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5583/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen fixes from Konrad Rzeszutek Wilk:
- Three fixes for ARM/ARM64 to either compile or not certain generic
drivers
- Fix for avoiding a potential deadlock when an user space event
channel is destroyed.
- Fix a workqueue resuming multiple times.
* tag 'stable/for-linus-3.11-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/tmem: do not allow XEN_TMEM on ARM64
xen/evtchn: avoid a deadlock when unbinding an event channel
xen/arm: enable PV control for ARM
xen/arm64: Don't compile cpu hotplug
xenbus: frontend resume cleanup
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tmem is not supported on arm or arm64 yet. Will revert this
once the Xen hypervisor supports it.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Unbinding an event channel (either with the ioctl or when the evtchn
device is closed) may deadlock because disable_irq() is called with
port_user_lock held which is also locked by the interrupt handler.
Think of the IOCTL_EVTCHN_UNBIND is being serviced, the routine has
just taken the lock, and an interrupt happens. The evtchn_interrupt
is invoked, tries to take the lock and spins forever.
A quick glance at the code shows that the spinlock is a local IRQ
variant. Unfortunately that does not help as "disable_irq() waits for
the interrupt handler on all CPUs to stop running. If the irq occurs
on another VCPU, it tries to take port_user_lock and can't because
the unbind ioctl is holding it." (from David). Hence we cannot
depend on the said spinlock to protect us. We could make it a system
wide IRQ disable spinlock but there is a better way.
We can piggyback on the fact that the existence of the spinlock is
to make get_port_user() checks be up-to-date. And we can alter those
checks to not depend on the spin lock (as it's protected by u->bind_mutex
in the ioctl) and can remove the unnecessary locking (this is
IOCTL_EVTCHN_UNBIND) path.
In the interrupt handler we cannot use the mutex, but we do not
need it.
"The unbind disables the irq before making the port user stale, so when
you clear it you are guaranteed that the interrupt handler that might
use that port cannot be running." (from David).
Hence this patch removes the spinlock usage on the teardown path
and piggybacks on disable_irq happening before we muck with the
get_port_user() data. This ensures that the interrupt handler will
never run on stale data.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v1: Expanded the commit description a bit]
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Enable lifecyle management (reboot, shutdown...) from the toolstack
for ARM guests.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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On ARM64, when CONFIG_XEN=y, the compilation will fail because CPU hotplug is
not yet supported with XEN. For now, disable it.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
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Only create the delayed resume workqueue if we are running in the same domain
as xenstored and issue a warning if the workqueue creation fails.
Move the work initialization to the device probe so it is done only once.
Signed-off-by: Aurelien Chartier <aurelien.chartier@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen
Pull Xen ARM fix from Stefano Stabellini.
Update xen_restart to new calling convention.
* tag 'xen-arm-3.11-rc2-warn-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/sstabellini/xen:
xen/arm,arm64: update xen_restart after ff701306cd49 and 7b6d864b48d9
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Commit 7b6d864b48d9 (reboot: arm: change reboot_mode to use enum
reboot_mode) and ff701306cd49 (arm64: use common reboot infrastructure)
change the prototype of arm_pm_restart on arm and arm64.
Update xen_restart accordingly.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some tiny USB fixes for 3.11-rc4
Nothing major, some gadget fixes, some new device ids, a new tiny
driver for the ANT+ USB device, and a number of fixes for the mos7840
driver that were much needed"
* tag 'usb-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: ftdi_sio: add more RT Systems ftdi devices
usb: chipidea: fix the build error with randconfig
usb: chipidea: cast PORTSC_PTS and DEVLC_PTS macros
usb: gadget: udc-core: fix the typo of udc state attribute
usb: gadget: f_phonet: remove unused preprocessor conditional
usb: gadget: multi: fix error return code in cdc_do_config()
USB: mos7840: fix pointer casts
USB: mos7840: fix race in led handling
USB: mos7840: fix device-type detection
USB: mos7840: fix race in register handling
USB: serial: add driver for Suunto ANT+ USB device
usb: gadget: free opts struct on error recovery
usb: gadget: ether: put_usb_function on unbind
usb: musb: fix resource passed from glue layer to musb
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RT Systems makes many usb serial cables based on the ftdi_sio driver for
programming various amateur radios. This patch is a full listing of
their current product offerings and should allow these cables to all
be recognized.
Signed-off-by: Rick Farina (Zero_Chaos) <zerochaos@gentoo.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Using below configs, the compile will have error:
ERROR: "ehci_init_driver" undefined!
.config:
CONFIG_USB_CHIPIDEA=m
CONFIG_USB_CHIPIDEA_HOST=y
CONFIG_USB_CHIPIDEA_DEBUG=y
The reason is chipidea host uses symbol from ehci, but ehci
is not compiled. Let the chipidea host depend on
ehci even it is built as module.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix the following build warnings on x86:
drivers/usb/chipidea/core.c: In function 'hw_phymode_configure':
drivers/usb/chipidea/core.c:226:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
drivers/usb/chipidea/core.c:230:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
drivers/usb/chipidea/core.c:243:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
drivers/usb/chipidea/core.c:246:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
Reported-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v3.11-rc3
Here are some fixes for v3.11-rc3. Mostly related to
the recent conversion to configfs done on the gadget
drivers, but we also have a fix for MUSB resources
on platforms which need 3 resources instead of 2, and
a fix for the sysfs_notify() call on udc-core.c which
was notifying an unexistent file.
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The name of udc state attribute file under sysfs is registered as
"state", while usb_gadget_set_state take it as "status" when it's
going to update. This patch fixes the typo.
Signed-off-by: Rong Wang <Rong.Wang@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Cc: <stable@kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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The compatibility layer which the USBF_PHONET_INCLUDED was a part of
is no longer present - the USBF_PHONET_INCLUDED is not #defined by anyone
anymore, so the ifndef is always true. Removing it.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Introduced by commit 59835a (usb: gadget: multi: use
function framework for ACM.)
Make rndis_do_config() consistent with cdc_do_config() in the way it
handles returning the PTR_ERR(f_acm_*).
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Fix memory leaks introduced in commits:
40d133d7f542616cf9538508a372306e626a16e9
usb: gadget: f_ncm: convert to new function interface with backward compatibility
fee562a6450b7806f1fbbe1469a67b5395b5c10a
usb: gadget: f_ecm: convert to new function interface with backward compatibility
fcbdf12ebef73a6069e2a1aada1e546fb578a4aa
usb: gadget: f_phonet: convert to new function interface with backward compatibility
b29002a157940752dfed2c488b2011f63f007d71
usb: gadget: f_eem: convert to new function interface with backward compatibility
8cedba7c73af1369599b1111639cfeb66fe13aaa
usb: gadget: f_subset: convert to new function interface with backward compatibility
f466c6353819326873fa48a02c6f2d7c903240d6
usb: gadget: f_rndis: convert to new function interface with backward compatibility
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Fix bugs introduced in
9c62ce83e4258bacc459faf57bf2ed83cce6be08
usb: gadget: ether: convert to new interface of f_ecm
94b5573e97729f0e1496d23b69cbe2c6b24ec0c3
usb: gadget: ether: convert to new interface of f_eem
8af5232d6f48896b151898ccb2e9e155481bb785
usb: gadget: ether: convert to new interface of f_subset
9bd4a10e1bf881af0b0a7c117c7092b558447047
usb: gadget: ether: convert to new interface of f_rndis
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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some MUSB incarnations, such as those governed by
omap2430.c and tusb6010.c, have three resources, not
two.
Fix the bug created by commit 09fc7d2 (usb: musb:
fix incorrect usage of resource pointer) where only
two of the three resources would be passed to musb_core.c
[ balbi@ti.com : add tusb6010.c to original patch ]
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
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Silence compiler warnings on 64-bit systems introduced by commit
05cf0dec ("USB: mos7840: fix race in led handling") which uses the
usb-serial data pointer to temporarily store the device type during
probe but failed to add the required casts.
[gregkh - change uintptr_t to unsigned long]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix race in LED handling introduced by commit 0eafe4de ("USB: serial:
mos7840: add support for MCS7810 devices") which reused the port control
urb for manipulating the LED without making sure that the urb is not
already in use. This could lead to the control urb being manipulated
while in flight.
Fix by adding a dedicated LED urb and ctrlrequest along with a LED-busy
flag to handle concurrency.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix race in device-type detection introduced by commit 0eafe4de ("USB:
serial: mos7840: add support for MCS7810 devices") which used a static
variable to hold the device type.
Move type detection to probe and use serial data to store the device
type.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix race in mos7840_get_reg which unconditionally manipulated the
control urb (which may already be in use) by adding a control-urb busy
flag.
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds a driver for the Suunto ANT+ USB device, exposing it as a usb
serial device. This lets the userspace "gant" program to talk to the
device to communicate over the ANT+ protocol to any devices it finds.
Reported-by: Steinar Gunderson <sgunderson@bigfoot.com>
Tested-by: Steinar Gunderson <sgunderson@bigfoot.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are 4 tiny tty and serial driver fixes for 3.11-rc4.
Nothing big, a refcount leak, a module alias fix, and two fixes to the
mxs-auart serial driver"
* tag 'tty-3.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: arc_uart: Fix module alias
tty_port: Fix refcounting leak in tty_port_tty_hangup()
serial/mxs-auart: increase time to wait for transmitter to become idle
serial/mxs-auart: fix race condition in interrupt handler
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Platform drivers use "platform:" prefix in module alias.
Also use DRIVER_NAME in MODULE_ALIAS to make module autoloading work.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function tty_port_tty_hangup() could leak a reference to the tty_struct:
struct tty_struct *tty = tty_port_tty_get(port);
if (tty && (!check_clocal || !C_CLOCAL(tty))) {
tty_hangup(tty);
tty_kref_put(tty);
}
If tty != NULL and the second condition is false we never call tty_kref_put and
the reference is leaked.
Fix by always calling tty_kref_put() which accepts a NULL argument.
The patch fixes a regression introduced by commit aa27a094.
Acked-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Gianluca Anzolin <gianluca@sottospazio.it>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Cc: stable <stable@vger.kernel.org> # 3.10
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Without this patch the driver waits ~1 ms for the UART to become idle. At
115200n8 this time is (theoretically) enough to transfer 11.5 characters
(= 115200 bits/s / (10 Bits/char) * 1ms). As the mxs-auart has a fifo size
of 16 characters the clock is gated too early. The problem is worse for
lower baud rates.
This only happens to really shut down the transmitter in the middle of a
transfer if /dev/ttyAPPx isn't opened in userspace (e.g. by a getty) but
was at least once (because the bootloader doesn't disable the transmitter).
So increase the timeout to 20 ms which should be enough for 9600n8, too.
Moreover skip gating the clock if the timeout is elapsed.
Cc: stable@vger.kernel.org # v2.6.39+
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The handler needs to ack the pending events before actually handling them.
Otherwise a new event might come in after it it considered non-pending or
handled and is acked then without being handled. So this event is only
noticed when the next interrupt happens.
Without this patch an i.MX28 based machine running an rt-patched kernel
regularly hangs during boot.
Cc: stable@vger.kernel.org # v2.6.39+
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire regression fix from Stefan Richter:
"This fixes corrupted video capture, seen with IIDC/DCAM video and
certain buffer settings. (Regression since v3.4 inclusive.)"
* tag 'firewire-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: fix libdc1394/FlyCap2 iso event regression
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Commit 18d627113b83 (firewire: prevent dropping of completed iso packet
header data) was intended to be an obvious bug fix, but libdc1394 and
FlyCap2 depend on the old behaviour by ignoring all returned information
and thus not noticing that not all packets have been received yet. The
result was that the video frame buffers would be saved before they
contained the correct data.
Reintroduce the old behaviour for old clients.
Tested-by: Stepan Salenikovich <stepan.salenikovich@gmail.com>
Tested-by: Josep Bosch <jep250@gmail.com>
Cc: <stable@vger.kernel.org> # 3.4+
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
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