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Author SHA1 Message Date
Florian Fainelli
852bcafb99 net: bcmgenet: Remove duplicate test for tx_coalesce_usecs_high
We were checking twice for ec->tx_coalesce_usecs_high, remove the
duplicate test.

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Reported-by: kbuild-all@01.org
Fixes: 2f9130709d ("net: bcmgenet: Implement TX coalescing control knobs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:26:12 -07:00
John W. Linville
5eb8f289ac geneve: remove vlan-related feature assignment
The code handling vlan tag insertion was dropped in commit 371bd1061d
("geneve: Consolidate Geneve functionality in single module.").  Now we
need to drop the related vlan feature bits in the netdev structure.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:24:33 -07:00
Yuchung Cheng
f9b9958229 tcp: send loss probe after 1s if no RTT available
This patch makes TLP to use 1 sec timer by default when RTT is
not available due to SYN/ACK retransmission or SYN cookies.

Prior to this change, the lack of RTT prevents TLP so the first
data packets sent can only be recovered by fast recovery or RTO.
If the fast recovery fails to trigger the RTO is 3 second when
SYN/ACK is retransmitted. With this patch we can trigger fast
recovery in 1sec instead.

Note that we need to check Fast Open more properly. A Fast Open
connection could be (accepted then) closed before it receives
the final ACK of 3WHS so the state is FIN_WAIT_1. Without the
new check, TLP will retransmit FIN instead of SYN/ACK.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:19:01 -07:00
Yuchung Cheng
0f1c28ae74 tcp: usec resolution SYN/ACK RTT
Currently SYN/ACK RTT is measured in jiffies. For LAN the SYN/ACK
RTT is often measured as 0ms or sometimes 1ms, which would affect
RTT estimation and min RTT samping used by some congestion control.

This patch improves SYN/ACK RTT to be usec resolution if platform
supports it. While the timestamping of SYN/ACK is done in request
sock, the RTT measurement is carefully arranged to avoid storing
another u64 timestamp in tcp_sock.

For regular handshake w/o SYNACK retransmission, the RTT is sampled
right after the child socket is created and right before the request
sock is released (tcp_check_req() in tcp_minisocks.c)

For Fast Open the child socket is already created when SYN/ACK was
sent, the RTT is sampled in tcp_rcv_state_process() after processing
the final ACK an right before the request socket is released.

If the SYN/ACK was retransmistted or SYN-cookie was used, we rely
on TCP timestamps to measure the RTT. The sample is taken at the
same place in tcp_rcv_state_process() after the timestamp values
are validated in tcp_validate_incoming(). Note that we do not store
TS echo value in request_sock for SYN-cookies, because the value
is already stored in tp->rx_opt used by tcp_ack_update_rtt().

One side benefit is that the RTT measurement now happens before
initializing congestion control (of the passive side). Therefore
the congestion control can use the SYN/ACK RTT.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:19:01 -07:00
Matthew Garrett
4a476bd6d1 usbnet: New driver for QinHeng CH9200 devices
There's a bunch of cheap USB 10/100 devices based on QinHeng chipsets. The
vendor driver supports the CH9100 and CH9200 devices, but the majority of
the code is of the if (ch9100) {} else {} form, with the most significant
difference being that CH9200 provides a real MII interface but CH9100 fakes
one with a bunch of global variables and magic commands. I don't have a
CH9100, so it's probably better if someone who does provides an independent
driver for it. In any case, this is a lightly cleaned up version of the
vendor driver with all the CH9100 code dropped.

Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:16:16 -07:00
David S. Miller
4f8d0bbb00 Merge branch 'phy-of-autoload'
Luis de Bethencourt says:

====================
net: phy: Fix module autoload for OF platform drivers

These patches add the missing MODULE_DEVICE_TABLE() for OF to export
the information so modules have the correct aliases built-in and
autoloading works correctly.

A longer explanation by Javier Canillas can be found here:
https://lkml.org/lkml/2015/7/30/519
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:11:21 -07:00
Luis de Bethencourt
1ccb141e31 net: phy: mdio-gpio: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:11:20 -07:00
Luis de Bethencourt
2f90a30706 net: phy: mdio-bcm-unimac: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:11:20 -07:00
David S. Miller
a11d5585ed Merge branch 'net-of-autoload'
Luis de Bethencourt says:

====================
net: Fix module autoload for OF platform drivers

These patches add the missing MODULE_DEVICE_TABLE() for OF to export
the information so modules have the correct aliases built-in and
autoloading works correctly.

A longer explanation by Javier Canillas can be found here:
https://lkml.org/lkml/2015/7/30/519
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:09:11 -07:00
Luis de Bethencourt
ebd8ebf078 net: moxa: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:09:02 -07:00
Luis de Bethencourt
2386006370 net: gianfar_ptp: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:08:21 -07:00
Luis de Bethencourt
e8048e5595 net: bcmgenet: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luis@osg.samsung.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:08:21 -07:00
Luis de Bethencourt
46d5a3431f net: systemport: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:08:21 -07:00
Luis de Bethencourt
c7d778fa74 net: arc: Fix module autoload for OF platform driver
This platform driver has a OF device ID table but the OF module
alias information is not created so module autoloading won't work.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:08:20 -07:00
David S. Miller
21fe8af400 Merge branch 's390-next'
Ursula Braun says:

====================
s390: qeth and iucv patches

here is version 2 of some s390 related qeth patches for net-next. The patch by
Thomas Richter adds a new feature to the qeth layer2 code; the remaining
patches are minor improvements.
Version 2 of patch 4 uses the desired indentation in function declarations
and definitions spanning multiple lines in almost all cases. Thomas run into a
conflict with the maximum number of columns once. Thus you will still see one
function definition using an earlier column before the opening paranthesis.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:03:05 -07:00
Ursula Braun
91e60eb60b s390/iucv: do not use arrays as argument
The iucv code uses arrays as arguments. Even though this does not
really cause a problem, it could be misleading, since the compiler
turns array arguments into just a pointer argument. To be more
precise this patch changes the array arguments into pointers.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:03:04 -07:00
Thomas Richter
4d7def2a12 qeth: add layer 2 RX/TX checksum offloading
Checksum offloading for send and receive is already
supported for layer 3 (IP layer). This patch
adds support for RX and TX hardware checksum offloading
for layer 2 (MAC layer). The hardware calculates the checksum
for IP UDP and TCP packets.

This patch moves the hardware checksum offloading setup
to the set of common functions in qeth_core_main.c.
Layer 2 and layer 3 now simply call the same common functions.

Also note that TX checksum offloading is always enabled.
The device driver relies on the TCP/IP stack to make use of
this feature.

Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:03:04 -07:00
Ursula Braun
239ff408dd qeth: move OSA portname into deprecated status
An OSA-Express port name was required to identify a shared OSA port.
All operating system instances that shared the port had to use the
same port name. This requirement no longer applies.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:03:04 -07:00
Lakhvich Dmitriy
248046ba07 qeth: no write permission for readonly sysattr
User is not allowed to write into bridge_state sysfs file.
Fixed attribute not mislead the user

Signed-off-by: Lakhvich Dmitriy <ldmitriy@ru.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Reported-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Reviewed-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Reviewed-by: Thomas Richter <tmricht@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:03:04 -07:00
Eugene Crosser
9846e70b9b qeth: remove extraneous length from %pM format
Length specifier in the %pM format is not supported (at least, not
documented). Remove it, and also an extraneous '&' for the array.

Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:03:03 -07:00
David S. Miller
5dcd246107 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:

====================
pull request: bluetooth-next 2015-09-18

Here's the first bluetooth-next pull request for the 4.4 kernel:

 - ieee802154 cleanups & fixes
 - debugfs support for the at86rf230 driver
 - Support for quirky (seemingly counterfeit) CSR Bluetooth controllers
 - Power management and device config improvements for Intel controllers
 - Fix for devices with incorrect advertising data length
 - Fix for closing HCI user channel socket

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

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-21 16:00:44 -07:00
Boris BREZILLON
730a43fbc1 mtd: nand: add nand_check_erased helper functions
Add two helper functions to help NAND controller drivers test whether a
specific NAND region is erased or not.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-21 15:35:04 -07:00
Mark Brown
16651fc2f3 Merge remote-tracking branches 'regulator/fix/anatop', 'regulator/fix/gpio', 'regulator/fix/pbias', 'regulator/fix/tpx65218' and 'regulator/fix/vexpress' into regulator-linus 2015-09-21 14:16:09 -07:00
Mark Brown
4e2e986473 Merge remote-tracking branch 'regulator/fix/core' into regulator-linus 2015-09-21 14:15:58 -07:00
Boris Brezillon
1de7d80246 regulator: pwm: implement ->enable(), ->disable() and ->is_enabled methods
Implement the ->enable(), ->disable() and ->is_enabled methods and remove
the PWM call in ->set_voltage_sel().
This is particularly important for critical regulators tagged as always-on,
because not claiming the PWM (and its dependencies) might lead to
unpredictable behavior (like a system hang because the PWM clk is only
claimed when the PWM device is enabled).

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-21 14:11:18 -07:00
Wang Nan
854f736364 perf tools: Don't assume that the parser returns non empty evsel list
Don't blindly retrieve and use a last element in the lists returned by
parse_events__scanner(), as it may have collected no entries, i.e.
return an empty list.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Brendan Gregg <brendan.d.gregg@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Ahern <dsahern@gmail.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kaixu Xia <xiakaixu@huawei.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1441523623-152703-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-21 18:01:17 -03:00
Masami Hiramatsu
0fb1855347 perf probe: Fix a segfault when removing uprobe events
Fix a segfault bug and a small mistake in perf probe -d.

Since the "ulist" in perf_del_probe_events is never initialized,
strlist__add(ulist, *) always causes a segfault when removing
uprobe events by perf probe -d.

Also, the "str" local variable is never released if fail to
allocate the "klist". This fixes it too.

This has been introduced by the commit e607f1426b ("perf probe:
Print deleted events in cmd_probe()").

Reported-by: Milian Wolff <milian.wolff@kdab.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20150916125241.4446.44805.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-09-21 18:01:17 -03:00
Antoine Tenart
e1a3e724a2 ARM: berlin: register cpufreq-dt
The Berlin SoCs use cpufreq-dt for cpufreq. Register a platform device.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-09-21 22:57:24 +02:00
Antoine Tenart
1e5c50572d ARM: berlin: dts: add the cpufreq-dt bindings on the BG2CD
The BG2CD uses cpugreq-dt. Add the corresponding bindings.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-09-21 22:55:48 +02:00
Antoine Tenart
2e1782add7 ARM: berlin: dts: add the cpufreq-dt bindings on the BG2
The BG2 uses cpugreq-dt. Add the corresponding bindings.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-09-21 22:55:47 +02:00
Antoine Tenart
23998645f6 ARM: berlin: dts: add the cpufreq-dt bindings on the BG2Q
The BG2Q uses cpugreq-dt. Add the corresponding bindings. The operating
points can be updated by the bootloader.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
2015-09-21 22:55:46 +02:00
chandan
50745b0a7f Btrfs: Direct I/O: Fix space accounting
The following call trace is seen when generic/095 test is executed,

WARNING: CPU: 3 PID: 2769 at /home/chandan/code/repos/linux/fs/btrfs/inode.c:8967 btrfs_destroy_inode+0x284/0x2a0()
Modules linked in:
CPU: 3 PID: 2769 Comm: umount Not tainted 4.2.0-rc5+ #31
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20150306_163512-brownie 04/01/2014
 ffffffff81c08150 ffff8802ec9cbce8 ffffffff81984058 ffff8802ffd8feb0
 0000000000000000 ffff8802ec9cbd28 ffffffff81050385 ffff8802ec9cbd38
 ffff8802d12f8588 ffff8802d12f8588 ffff8802f15ab000 ffff8800bb96c0b0
Call Trace:
 [<ffffffff81984058>] dump_stack+0x45/0x57
 [<ffffffff81050385>] warn_slowpath_common+0x85/0xc0
 [<ffffffff81050465>] warn_slowpath_null+0x15/0x20
 [<ffffffff81340294>] btrfs_destroy_inode+0x284/0x2a0
 [<ffffffff8117ce07>] destroy_inode+0x37/0x60
 [<ffffffff8117cf39>] evict+0x109/0x170
 [<ffffffff8117cfd5>] dispose_list+0x35/0x50
 [<ffffffff8117dd3a>] evict_inodes+0xaa/0x100
 [<ffffffff81165667>] generic_shutdown_super+0x47/0xf0
 [<ffffffff81165951>] kill_anon_super+0x11/0x20
 [<ffffffff81302093>] btrfs_kill_super+0x13/0x110
 [<ffffffff81165c99>] deactivate_locked_super+0x39/0x70
 [<ffffffff811660cf>] deactivate_super+0x5f/0x70
 [<ffffffff81180e1e>] cleanup_mnt+0x3e/0x90
 [<ffffffff81180ebd>] __cleanup_mnt+0xd/0x10
 [<ffffffff81069c06>] task_work_run+0x96/0xb0
 [<ffffffff81003a3d>] do_notify_resume+0x3d/0x50
 [<ffffffff8198cbc2>] int_signal+0x12/0x17

This means that the inode had non-zero "outstanding extents" during
eviction. This occurs because, during direct I/O a task which successfully
used up its reserved data space would set BTRFS_INODE_DIO_READY bit and does
not clear the bit after finishing the DIO write. A future DIO write could
actually fail and the unused reserve space won't be freed because of the
previously set BTRFS_INODE_DIO_READY bit.

Clearing the BTRFS_INODE_DIO_READY bit in btrfs_direct_IO() caused the
following issue,
|-----------------------------------+-------------------------------------|
| Task A                            | Task B                              |
|-----------------------------------+-------------------------------------|
| Start direct i/o write on inode X.|                                     |
| reserve space                     |                                     |
| Allocate ordered extent           |                                     |
| release reserved space            |                                     |
| Set BTRFS_INODE_DIO_READY bit.    |                                     |
|                                   | splice()                            |
|                                   | Transfer data from pipe buffer to   |
|                                   | destination file.                   |
|                                   | - kmap(pipe buffer page)            |
|                                   | - Start direct i/o write on         |
|                                   |   inode X.                          |
|                                   |   - reserve space                   |
|                                   |   - dio_refill_pages()              |
|                                   |     - sdio->blocks_available == 0   |
|                                   |     - Since a kernel address is     |
|                                   |       being passed instead of a     |
|                                   |       user space address,           |
|                                   |       iov_iter_get_pages() returns  |
|                                   |       -EFAULT.                      |
|                                   |   - Since BTRFS_INODE_DIO_READY is  |
|                                   |     set, we don't release reserved  |
|                                   |     space.                          |
|                                   |   - Clear BTRFS_INODE_DIO_READY bit.|
| -EIOCBQUEUED is returned.         |                                     |
|-----------------------------------+-------------------------------------|

Hence this commit introduces "struct btrfs_dio_data" to track the usage of
reserved data space. The remaining unused "reserve space" can now be freed
reliably.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-09-21 13:47:55 -07:00
Boris BREZILLON
03a0e8a7c5 mtd: nand: sunxi: fix OOB handling in ->write_xxx() functions
The USER_DATA register cannot be accessed using byte accessors on A13
SoCs, thus triggering a bug when using memcpy_toio on this register.
Declare an helper macros to convert an OOB buffer into a suitable
USER_DATA value and vice-versa.

This patch also fixes an error in the oob_required logic (some OOB data
are not written even if the user required it) by removing the
oob_required condition, which is perfectly valid since the core already
fill ->oob_poi with FFs when oob_required is false.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: <stable@vger.kernel.org> # 3.19+
Fixes: 1fef62c142 ("mtd: nand: add sunxi NAND flash controller support")
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-09-21 13:36:42 -07:00
Roger Quadros
a66c275b3d usb: dwc3: gadget: Fix BUG in RT config
Using spin_lock() in hard irq handler is pointless
and causes a BUG() in RT (real-time) configuration
so get rid of it.

The reason it's pointless is because the driver is
basically accessing register which is, anyways,
atomic.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:36 -05:00
Bin Liu
b431ba8803 usb: musb: fix cppi channel teardown for isoch transfer
After a few iterations of start/stop UVC camera streaming, the streaming
stops.

This patch adds 250us delay in the cppi channel abort path to let cppi
drain properly.

Using 50us delay seems to be too aggressive, some webcams are still
broken. 250us is the original value used in TI 3.2 kernel.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:36 -05:00
Javier Martinez Canillas
8fb7ab5043 usb: phy: isp1301: Export I2C module alias information
The I2C core always reports the MODALIAS uevent as "i2c:<client name"
regardless if the device was registered using OF or platform code so
So the driver needs to export the I2C table and this be built into
the module or udev won't have the necessary information to auto load
the module when the device is added.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:36 -05:00
Julia Lawall
51b91b7e6c usb: gadget: drop null test before destroy functions
Remove unneeded NULL test.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression x; @@
-if (x != NULL)
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:36 -05:00
Igor Kotrasinski
9a9ce1dfae usb: gadget: dummy_hcd: in transfer(), return data sent, not limit
dummy_timer uses transfer() to update transfer limit. However,
limit passed to dummy_timer changes depending on transfer type,
so the actual limit is overwritten.

This can cause unpredictably slow / fast bulk transfers when
coupled with control / interrupt transfers.

Fix by returning actual amount of data sent in transfer() and
substracting from total.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:36 -05:00
Igor Kotrasinski
e42bd6a54b usb: gadget: dummy_hcd: fix rescan logic for transfer
transfer() schedules a rescan for transfers larger than
maxpacket, which is wrong for transfers that are multiples
of maxpacket.

Rewrite to fix and clarify packet multiple / remainder
transfer logic.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:36 -05:00
Igor Kotrasinski
5dda5be9d5 usb: gadget: dummy_hcd: fix unneeded else-if condition
We already know at this point that to_host is false.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:35 -05:00
Igor Kotrasinski
21c3ee9386 usb: gadget: dummy_hcd: emulate sending zlp in packet logic
currently, when a zlp flag is set and an urb/usb_request
buffer is filled without a short packet, transfer() leaves
its status at -EINPROGRESS and does not rescan for short
packet.

In a scenario where ep.maxpacket bytes are copied,
URB_ZERO_PACKET is set, urb buffer is filled and usb_request
buffer is not, transfer() returns with an urb with
-EINPROGRESS status, which dummy_hcd treats as incomplete
transfer.

Check for zlp and rescan appropriately.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:35 -05:00
Bin Liu
b8239dcc03 usb: musb: dsps: fix polling in device-only mode
Fix the regression caused by commit ad78c91860 ("usb: musb: dsps: just
start polling already") which causes polling the ID pin status even in
device-only mode.

Fixes: ad78c91860 ("usb: musb: dsps: just start polling already")
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:35 -05:00
Sylvain Rochet
cf261fd1a4 usb: gadget: atmel_usba_udc: add ep capabilities support on device tree binding
The recently added endpoint capabilities flags verification breaks Atmel
USBA because the endpoint configuration was only added when the driver
is bound using the legacy pdata interface.

Convert endpoint configuration to new capabilities model when driver is
bound to a device tree as well.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Fixes: 47bef38651 ("usb: gadget: atmel_usba_udc: add ep capabilities support")
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-09-21 14:42:35 -05:00
Tomeu Vizoso
85f3b43116 regulator: core: Remove regulator_list
As we are already registering a device with regulator_class for each
regulator device, regulator_list is redundant and can be replaced with
calls to class_find_device() and class_for_each_device().

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-21 12:34:46 -07:00
Tejun Heo
472912a2b5 memcg: generate file modified notifications on "memory.events"
cgroup core only recently grew generic notification support.  Wire up
"memory.events" so that it triggers a file modified event whenever its
content changes.

v2: Refreshed on top of mem_cgroup relocation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Michal Hocko <mhocko@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Li Zefan <lizefan@huawei.com>
2015-09-21 15:14:47 -04:00
Linus Torvalds
ac2fc4b9d5 SH Drivers Updates for v4.3
* Disable PM runtime for multi-platform ARM with genpd
 * Disable legacy default PM Domain on emev2
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Merge tag 'renesas-sh-drivers-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas

Pull SH drivers updates from Simon Horman:
 "I am sending this change after v4.3-rc1 has been released as it
  depends on SoC changes which are present in that rc release.

  Summary:

   - disable PM runtime for multi-platform ARM with genpd

   - disable legacy default PM Domain on emev2"

* tag 'renesas-sh-drivers-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  drivers: sh: Disable PM runtime for multi-platform ARM with genpd
  drivers: sh: Disable legacy default PM Domain on emev2
2015-09-21 12:02:27 -07:00
Ludovic Desroches
f6c804b08c ARM: at91/dt: sama5d2: add pio controller node
Add pio4 controller node to enable pinmux and gpio.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-09-21 11:24:28 -07:00
Ludovic Desroches
33d3690cf5 MAINTAINERS: Add an entry for pinctrl-at91-pio4
Add an entry for the Atmel PIO4 controller driver.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-09-21 11:23:37 -07:00
Ludovic Desroches
56d7942224 pinctrl: dt-binding: Add DT binding documentation for Atmel PIO4
Add documentation for the Atmel PIO4 controller introduced with SAMA5D2
chip family.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-09-21 11:23:08 -07:00
Ludovic Desroches
776180848b pinctrl: introduce driver for Atmel PIO4 controller
Add a pinctrl/gpio driver for Atmel PIO4 controller available on SAMA5D2
chip family.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-09-21 11:21:33 -07:00