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560,538 commits

Author SHA1 Message Date
Maxime Ripard
bef6229f36 ARM: sunxi: Add R8 support
The R8 is a new Allwinner SoC based on the A13. While both are very
similar, there's still a few differences. Introduce a new compatible to
deal with them.

In order to have a consistent naming, instead of mentioning the Allwinner
A series as the machine name, switch to sun4i/sun5i like what is done for
the other families.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-17 18:47:28 +02:00
Takashi Iwai
083117c0ca ALSA: hda - Remove obsoleted documentation
It's totally outdated.  We need a revised version later, maybe better
integrated into kernel doc.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-10-17 18:34:24 +02:00
Takashi Iwai
658a69bb75 ALSA: hda - Remove leftover snd_hda_bus() prototype
It was forgotten to be removed.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-10-17 18:34:21 +02:00
Takashi Iwai
2f0eaad910 ALSA: hda - Fix bogus codec address check for mixer name assignment
The recent commit [7fbe824a0f: ALSA: hda - Update mixer name for the
lower codec address] tried to improve the mixer chip name assignment
in the order of codec address.  However, this fix was utterly bogus;
it checks the field set in each codec, thus this value is reset at
each codec creation, of course.  For really handling this priority,
the assignment has to be remembered in the common place, namely in
hda_bus, instead of hda_codec.

Fixes: 7fbe824a0f ('ALSA: hda - Update mixer name for the lower codec address')
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-10-17 18:34:18 +02:00
Hans de Goede
c2aa565107 ARM: dts: sun6i: Add a dts file for the Sinovoip BPI-M2 board
The Sinovoip BPI-M2 is a SBC board based on the A31s SoC it features
1G RAM, a microsd slot, Gbit ethernet, 4 usb-a USB-2 ports, ir receiver,
stereo headphone jack and hdmi video output.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-10-17 18:24:11 +02:00
Hans de Goede
5edab366c6 ARM: dts: sun6i: Add mmc2_pins_a pinmux setting to sun6i-a31.dtsi
Add a pinmux setting for using mmc2 in regular 4 bit mode.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-10-17 18:21:58 +02:00
Hans de Goede
6d55d339fa ARM: dts: sunxi: Fix interrupt-cells for [r]pio on A23/A31/A33/A80
When the gpio interrupt bindings where changed to add a bank to the
specifier list, the r_pio nodes of A23/A31/A33 where not updated to
match and neither was the pio node of the A80, this fixes this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2015-10-17 18:21:38 +02:00
Malcolm Priestley
9196124442 staging: vt6655: card.c rename pDevice with priv
Removing camel case.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
bc667b99cc staging: vt6655: rename pOpts and sOpts to opts.
bring pointers and members into line.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
068b998835 staging: vt6655: remove static inline alloc_td_info.
Since this only contains one function and used only twice remove
inline altogether.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
e06cf9aba8 staging: vt6655: remove static inline alloc_rd_info.
Since this only contains one function and only used twice
remove inline altogether.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
bed02d93a1 staging: vt6655: replace typedef struct __device_opt
with struct vnt_options and members
rx_descs0 for nRxDescs0
rx_descs1 for nRxDescs1
tx_descs for nTxDescs
int_works
short_retry
long_retry
bbp_type
flags

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
28c777cb1f staging: vt6655: device.h remove typedef enum
Covert values to macros.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
83373ac0be staging: vt6655: device.h remove unsed headers.
Most of these headers rate to old api that are no longer used
in driver.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
5137897949 staging: vt6655: device.h remove unused macros.
None of these are used in driver anymore.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Malcolm Priestley
0924a89b0b staging: vt6655: device_main Replace uIdx with idx.
Removing camel case.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:04:27 -07:00
Amitoj Kaur Chawla
a5eabae947 staging: sm750fb: Prefer using BIT Macro
Replace bit shifting on 1 with the BIT(x) Macro
Problem found using checkpatch.pl
WARNING: 'Prefer using the BIT macro'

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:03:16 -07:00
Eva Rachel Retuya
13d0580cd1 Staging: mt29f_spinand: Remove space after a cast
Modify retval to reflect removal of space during cast operation.
Checkpatch found this issue.

CHECK: No space is necessary after a cast

Signed-off-by: Eva Rachel Retuya <eraretuya@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:03:16 -07:00
Aybuke Ozdemir
09c02cb5a6 Staging: wilc1000: Remove unnecessary parentheses
Problem found using checkpatch.pl:
CHECK: Unnecessary parentheses around pstrNetworkInfo->u8SsidLen

Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:03:16 -07:00
Aybuke Ozdemir
86e4180e12 Staging: wilc1000: Remove unnecessary else after return
Problem found using checkpatch.pl:
WARNING: else is not generally useful after a break or return

Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:03:16 -07:00
Aybuke Ozdemir
350979e487 Staging: wilc1000: Remove multiple blank lines
Remove multiple blank lines. Problem found using checkpatch.pl
CHECK: Please don't use multiple blank lines.

Signed-off-by: Aybuke Ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 09:03:16 -07:00
Greg Kroah-Hartman
b5f0063778 Staging: lustre: remove unneeded variable
ldlm_lock_enqueue() always returns ELDLM_OK, no matter what happens, so
removed the unneeded variable that this value was being stored in and
just return the value itself.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
2015-10-17 08:55:15 -07:00
Linus Torvalds
81429a6dbc Merge branches 'irq-urgent-for-linus' and 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq/timer fixes from Thomas Gleixner:
 "irq: a fix for the new hierarchical MSI interrupt handling which
  unbreaks PCI=n configurations.

  timers: a fix for the new hrtimer clock offset update mechanism to
  ensure that the boot time offset is respected"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/msi: Do not use pci_msi_[un]mask_irq as default methods

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Increment clock_was_set_seq in timekeeping_init()
2015-10-17 08:47:27 -07:00
Pablo Neira Ayuso
f0a0a978b6 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
This merge resolves conflicts with 75aec9df3a ("bridge: Remove
br_nf_push_frag_xmit_sk") as part of Eric Biederman's effort to improve
netns support in the network stack that reached upstream via David's
net-next tree.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

Conflicts:
	net/bridge/br_netfilter_hooks.c
2015-10-17 14:28:03 +02:00
Vineet Gupta
f33e9c434b ARC: smp: Move default boot kick/wait code out of MCIP into common code
For non halt-on-reset case, all cores start of simultaneously in @stext.
Master core0 proceeds with kernel boot, while other spin-wait on
@wake_flag being set by master once it is ready. So NO hardware assist
is needed for master to "kick" the others.

This patch moves this soft implementation out of mcip.c (as there is no
hardware assist) into common smp.c

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:27 +05:30
Vineet Gupta
d0890ea5b6 ARC: boot log: decode more mmu config items
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:26 +05:30
Vineet Gupta
964cf28f9d ARC: boot log: move helper macros to header for reuse
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:25 +05:30
Vineet Gupta
b598e17f6a ARC: mm: compute TLB size as needed from ways * sets
This frees up some bits to hold more high level info such as PAE being
present, w/o increasing the size of already bloated cpuinfo struct

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:25 +05:30
Vineet Gupta
c583ee4fb0 ARC: mm: MMU v1..v3 only selectable for ARCompact ISA based cores
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:24 +05:30
Vineet Gupta
5c35ee642a ARC: make write_aux_reg safer against macro substitution
It was generating warnings when called as write_aux_reg(x, paddr >> 32)

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:24 +05:30
Vineet Gupta
9fabcc636b ARC: [arcompact] entry.S: Elide extra check/branch in exception ret path
This is done by improving the laddering logic !

Before:

   if Exception
      goto excep_or_pure_k_ret

   if !Interrupt(L2)
      goto l1_chk
   else
      INTERRUPT_EPILOGUE 2

 l1_chk:
   if !Interrupt(L1)  (i.e. pure kernel mode)
      goto excep_or_pure_k_ret
   else
      INTERRUPT_EPILOGUE 1

 excep_or_pure_k_ret:
   EXCEPTION_EPILOGUE

Now:

   if !Interrupt(L1 or L2) (i.e. exception or pure kernel mode)
      goto excep_or_pure_k_ret

  ; guaranteed to be an interrupt
   if !Interrupt(L2)
      goto l1_ret
   else
      INTERRUPT_EPILOGUE 2

 ; by virtue of above, no need to chk for L1 active
 l1_ret:
    INTERRUPT_EPILOGUE 1

 excep_or_pure_k_ret:
    EXCEPTION_EPILOGUE

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:23 +05:30
Vineet Gupta
5f88808745 ARC: [arcompact] entry.S: Document preemption games for L2 intr
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:23 +05:30
Vineet Gupta
55a2ae775a ARC: [arcompact] entry.S: Improve early return from exception
The requirement is to
 - Reenable Exceptions (AE cleared)
 - Reenable Interrupts (E1/E2 set)

We need to do wiggle these bits into ERSTATUS and call RTIE.

Prev version used the pre-exception STATUS32 as starting point for what
goes into ERSTATUS. This required explicit fixups of U/DE/L bits.

Instead, use the current (in-exception) STATUS32 as starting point.
Being in exception handler U/DE/L can be safely assumed to be correct.
Only AE/E1/E2 need to be fixed.

So the new implementation is slightly better
 -Avoids read form memory
 -Is 4 bytes smaller for the typical 1 level of intr configuration
 -Depicts the semantics more clearly

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:22 +05:30
Vineet Gupta
9dbd3d9bfd ARC: [arcompact] don't check for hard isr calling local_irq_enable()
Historically this was done by ARC IDE driver, which is long gone.
IRQ core is pretty robust now and already checks if IRQs are enabled
in hard ISRs. Thus no point in checking this in arch code, for every
call of irq enabled.

Further if some driver does do that - let it bring down the system so we
notice/fix this sooner than covering up for sucker

This makes local_irq_enable() - for L1 only case atleast simple enough
so we can inline it.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:22 +05:30
Vineet Gupta
c7119d56d2 ARCv2: mm: THP: flush_pmd_tlb_range make SMP safe
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:21 +05:30
Vineet Gupta
722fe8fd36 ARCv2: mm: THP: Implement flush_pmd_tlb_range() optimization
Implement the TLB flush routine to evict a sepcific Super TLB entry,
vs. moving to a new ASID on every such flush.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:21 +05:30
Vineet Gupta
12ebc1581a mm,thp: introduce flush_pmd_tlb_range
ARCHes with special requirements for evicting THP backing TLB entries
can implement this.

Otherwise also, it can help optimize TLB flush in THP regime.
stock flush_tlb_range() typically has optimization to nuke the entire
TLB if flush span is greater than a certain threshhold, which will
likely be true for a single huge page. Thus a single thp flush will
invalidate the entrire TLB which is not desirable.

e.g. see arch/arc: flush_pmd_tlb_range

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: http://lkml.kernel.org/r/20151009100816.GC7873@node
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:20 +05:30
Vineet Gupta
bd5e88ad72 mm,thp: reduce ifdef'ery for THP in generic code
- pgtable-generic.c: Fold individual #ifdef for each helper into a top
  level #ifdef. Makes code more readable

- Converted the stub helpers for !THP to BUILD_BUG() vs. runtime BUG()

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: http://lkml.kernel.org/r/20151009133450.GA8597@node
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:20 +05:30
Vineet Gupta
52585bcc25 mm: group pte related helpers together
This reduces/simplifies the diff for the next patch which moves THP
specific code.

No semantical changes !

Acked-by: Kirill A. Shutemov kirill.shutemov@linux.intel.com
Link: http://lkml.kernel.org/r/1442918096-17454-9-git-send-email-vgupta@synopsys.com
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:19 +05:30
Vineet Gupta
443a631283 Documentation/features/vm: THP now supported by ARC
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:19 +05:30
Vineet Gupta
6ce187985f ARCv2: mm: THP: boot validation/reporting
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:18 +05:30
Vineet Gupta
fe6c1b8611 ARCv2: mm: THP support
MMUv4 in HS38x cores supports Super Pages which are basis for Linux THP
support.

Normal and Super pages can co-exist (ofcourse not overlap) in TLB with a
new bit "SZ" in TLB page desciptor to distinguish between them.
Super Page size is configurable in hardware (4K to 16M), but fixed once
RTL builds.

The exact THP size a Linx configuration will support is a function of:
 - MMU page size (typical 8K, RTL fixed)
 - software page walker address split between PGD:PTE:PFN (typical
   11:8:13, but can be changed with 1 line)

So for above default, THP size supported is 8K * 256 = 2M

Default Page Walker is 2 levels, PGD:PTE:PFN, which in THP regime
reduces to 1 level (as PTE is folded into PGD and canonically referred
to as PMD).

Thus thp PMD accessors are implemented in terms of PTE (just like sparc)

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-10-17 17:48:18 +05:30
Eric Dumazet
c7c49b8fde net: add pfmemalloc check in sk_add_backlog()
Greg reported crashes hitting the following check in __sk_backlog_rcv()

	BUG_ON(!sock_flag(sk, SOCK_MEMALLOC));

The pfmemalloc bit is currently checked in sk_filter().

This works correctly for TCP, because sk_filter() is ran in
tcp_v[46]_rcv() before hitting the prequeue or backlog checks.

For UDP or other protocols, this does not work, because the sk_filter()
is ran from sock_queue_rcv_skb(), which might be called _after_ backlog
queuing if socket is owned by user by the time packet is processed by
softirq handler.

Fixes: b4b9e35585 ("netvm: set PF_MEMALLOC as appropriate during SKB processing")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Greg Thelen <gthelen@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-17 05:01:11 -07:00
Nikolay Borisov
00db674bed netfilter: ipset: Fix sleeping memory allocation in atomic context
Commit 00590fdd5b introduced RCU locking in list type and in
doing so introduced a memory allocation in list_set_add, which
is done in an atomic context, due to the fact that ipset rcu
list modifications are serialised with a spin lock. The reason
why we can't use a mutex is that in addition to modifying the
list with ipset commands, it's also being modified when a
particular ipset rule timeout expires aka garbage collection.
This gc is triggered from set_cleanup_entries, which in turn
is invoked from a timer thus requiring the lock to be bh-safe.

Concretely the following call chain can lead to "sleeping function
called in atomic context" splat:
call_ad -> list_set_uadt -> list_set_uadd -> kzalloc(, GFP_KERNEL).
And since GFP_KERNEL allows initiating direct reclaim thus
potentially sleeping in the allocation path.

To fix the issue change the allocation type to GFP_ATOMIC, to
correctly reflect that it is occuring in an atomic context.

Fixes: 00590fdd5b ("netfilter: ipset: Introduce RCU locking in list type")
Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-10-17 13:01:24 +02:00
Dan Carpenter
724097059a ALSA: firewire-tascam: off by one in handle_midi_tx()
My static checker complains because tscm->spec->midi_capture_ports is
either 2 or 4 but the tscm->tx_midi_substreams[] array has 4 elements so
this is possibly off by one.  I have looked at the code and I think it
should be >= instead of > as well.

Fixes: 107cc0129a ('ALSA: firewire-tascam: add support for incoming MIDI messages by asynchronous transaction')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-10-17 12:06:28 +02:00
Dan Carpenter
69ec98d7e5 ALSA: firewire-tascam: fix an LED bug
We recently tried to add some new code to support turning the LED on and
off but the code in snd_tscm_transaction_reregister() is unreachable.

Fixes: e65e2cb99e ('ALSA: firewire-tascam: Turn on/off FireWire LED')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-10-17 12:04:16 +02:00
Laura Abbott
fd7cd061ad xhci: Add spurious wakeup quirk for LynxPoint-LP controllers
We received several reports of systems rebooting and powering on
after an attempted shutdown. Testing showed that setting
XHCI_SPURIOUS_WAKEUP quirk in addition to the XHCI_SPURIOUS_REBOOT
quirk allowed the system to shutdown as expected for LynxPoint-LP
xHCI controllers. Set the quirk back.

Note that the quirk was originally introduced for LynxPoint and
LynxPoint-LP just for this same reason. See:

commit 638298dc66 ("xhci: Fix spurious wakeups after S5 on Haswell")

It was later limited to only concern HP machines as it caused
regression on some machines, see both bug and commit:

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66171
commit 6962d914f3 ("xhci: Limit the spurious wakeup fix only to HP machines")

Later it was discovered that the powering on after shutdown
was limited to LynxPoint-LP (Haswell-ULT) and that some non-LP HP
machine suffered from spontaneous resume from S3 (which should
not be related to the SPURIOUS_WAKEUP quirk at all). An attempt
to fix this then removed the SPURIOUS_WAKEUP flag usage completely.

commit b45abacde3 ("xhci: no switching back on non-ULT Haswell")

Current understanding is that LynxPoint-LP (Haswell ULT) machines
need the SPURIOUS_WAKEUP quirk, otherwise they will restart, and
plain Lynxpoint (Haswell) machines may _not_ have the quirk
set otherwise they again will restart.

Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Oliver Neukum <oneukum@suse.com>
[Added more history to commit message -Mathias]
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 00:04:18 -07:00
Mathias Nyman
3b4739b895 xhci: handle no ping response error properly
If a host fails to wake up a isochronous SuperSpeed device from U1/U2
in time for a isoch transfer it will generate a "No ping response error"
Host will then move to the next transfer descriptor.

Handle this case in the same way as missed service errors, tag the
current TD as skipped and handle it on the next transfer event.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 00:04:18 -07:00
Mathias Nyman
e210c422b6 xhci: don't finish a TD if we get a short transfer event mid TD
If the difference is big enough between the bytes asked and received
in a bulk transfer we can get a short transfer event pointing to a TRB in
the middle of the TD. We don't want to handle the TD yet as we will anyway
receive a new event for the last TRB in the TD.

Hold off from finishing the TD and removing it from the list until we
receive an event for the last TRB in the TD

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17 00:04:18 -07:00
Peter Senna Tschudin
50bdb12388 usb/host/fotg210: Add function scan_frame_queue()
checkpatch complains about too many leading tabs because the if
statement starts after 6 tabs:

scan_iosoc() -> for() -> while() -> switch() -> if() -> for() -> if()

There is also a goto statement going backwards in case of failure. This
patch creates a new inline function named scan_frame_queue() containing
the last 4 nesting levels, and removes the need of backwards goto,
making the code easier to read. After the patch it becomes:

scan_iosoc() -> for() -> while() -> scan_frame_queue()

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-16 23:46:27 -07:00