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824682 commits

Author SHA1 Message Date
Martin Blumenstingl
29f0023d01 ARM: dts: meson8b: fix the Ethernet data line signals in eth_rgmii_pins
According to the Odroid-C1+ schematics the Ethernet TXD1 signal is
routed to GPIOH_5 and the TXD0 signal is routed to GPIOH_6.
The public S805 datasheet shows that TXD0 can be routed to DIF_2_P and
TXD1 can be routed to DIF_2_N instead.

The pin groups eth_txd0_0 (GPIOH_6) and eth_txd0_1 (DIF_2_P) are both
configured as Ethernet TXD0 and TXD1 data lines in meson8b.dtsi. At the
same time eth_txd1_0 (GPIOH_5) and eth_txd1_1 (DIF_2_N) are configured
as TXD0 and TXD1 data lines as well.
This results in a bad Ethernet receive performance. Presumably this is
due to the eth_txd0 and eth_txd1 signal being routed to the wrong pins.
As a result of that data can only be transmitted on eth_txd2 and
eth_txd3. However, I have no scope to fully confirm this assumption.

The vendor u-boot sources for Odroid-C1 use the following Ethernet
pinmux configuration:
  SET_CBUS_REG_MASK(PERIPHS_PIN_MUX_6, 0x3f4f);
  SET_CBUS_REG_MASK(PERIPHS_PIN_MUX_7, 0xf00000);
This translates to the following pin groups in the mainline kernel:
- register 6 bit  0: eth_rxd1 (DIF_0_P)
- register 6 bit  1: eth_rxd0 (DIF_0_N)
- register 6 bit  2: eth_rx_dv (DIF_1_P)
- register 6 bit  3: eth_rx_clk (DIF_1_N)
- register 6 bit  6: eth_tx_en (DIF_3_P)
- register 6 bit  8: eth_ref_clk (DIF_3_N)
- register 6 bit  9: eth_mdc (DIF_4_P)
- register 6 bit 10: eth_mdio_en (DIF_4_N)
- register 6 bit 11: eth_tx_clk (GPIOH_9)
- register 6 bit 12: eth_txd2 (GPIOH_8)
- register 6 bit 13: eth_txd3 (GPIOH_7)
- register 7 bit 20: eth_txd0_0 (GPIOH_6)
- register 7 bit 21: eth_txd1_0 (GPIOH_5)
- register 7 bit 22: eth_rxd3 (DIF_2_P)
- register 7 bit 23: eth_rxd2 (DIF_2_N)

Drop the eth_txd0_1 and eth_txd1_1 groups from eth_rgmii_pins to fix the
Ethernet transmit performance on Odroid-C1. Also add the eth_rxd2 and
eth_rxd3 groups so we don't rely on the bootloader to set them up.

iperf3 statistics before this change:
- transmitting from Odroid-C1: 741 Mbits/sec (0 retries)
- receiving on Odroid-C1: 199 Mbits/sec (1713 retries)

iperf3 statistics after this change:
- transmitting from Odroid-C1: 667 Mbits/sec (0 retries)
- receiving on Odroid-C1: 750 Mbits/sec (0 retries)

Fixes: b96446541d ("ARM: dts: meson8b: extend ethernet controller description")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Emiliano Ingrassia <ingrassia@epigenesys.com>
Cc: Linus Lüssing <linus.luessing@c0d3.blue>
Tested-by: Emiliano Ingrassia <ingrassia@epigenesys.com>
Reviewed-by: Emiliano Ingrassia <ingrassia@epigenesys.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-02-11 12:52:25 -08:00
Tristram Ha
cbd72b4852 net: dsa: microchip: add switch offload forwarding support
The flag offload_fwd_mark is set as the switch can forward frames by
itself.

This can be considered a fix to a problem introduced in commit
c2e866911e where the port membership are not set in sync.  The flag
offload_fwd_mark just needs to be set in tag_ksz.c to prevent the software
bridge from forwarding duplicate multicast frames.

Fixes: c2e866911e ("microchip: break KSZ9477 DSA driver into two files")
Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11 12:46:51 -08:00
Eric Dumazet
4179cb5a4c vxlan: test dev->flags & IFF_UP before calling netif_rx()
netif_rx() must be called under a strict contract.

At device dismantle phase, core networking clears IFF_UP
and flush_all_backlogs() is called after rcu grace period
to make sure no incoming packet might be in a cpu backlog
and still referencing the device.

Most drivers call netif_rx() from their interrupt handler,
and since the interrupts are disabled at device dismantle,
netif_rx() does not have to check dev->flags & IFF_UP

Virtual drivers do not have this guarantee, and must
therefore make the check themselves.

Otherwise we risk use-after-free and/or crashes.

Note this patch also fixes a small issue that came
with commit ce6502a8f9 ("vxlan: fix a use after free
in vxlan_encap_bypass"), since the dev->stats.rx_dropped
change was done on the wrong device.

Fixes: d342894c5d ("vxlan: virtual extensible lan")
Fixes: ce6502a8f9 ("vxlan: fix a use after free in vxlan_encap_bypass")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Petr Machata <petrm@mellanox.com>
Cc: Ido Schimmel <idosch@mellanox.com>
Cc: Roopa Prabhu <roopa@cumulusnetworks.com>
Cc: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11 12:39:51 -08:00
Jouke Witteveen
989723b00b Documentation: bring operstate documentation up-to-date
Netlink has moved from bitmasks to group numbers long ago.

Signed-off-by: Jouke Witteveen <j.witteveen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11 12:38:51 -08:00
Tomer Maimon
66d388ff4a dt-binding: iio: remove rst node from NPCM ADC document
Remove NPCM7xx rst node for preparing the NPCM ADC
document to describe ADC reset binding.

Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-11 20:23:38 +00:00
Tomasz Duszynski
4a428cb2d7 dt-bindings: iio: chemical: pms7003: add device tree support
Add device tree support for Plantower PMS7003 particulate matter sensor.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-11 20:19:54 +00:00
Tomasz Duszynski
c184e4ad61 dt-bindings: add Plantower to the vendor prefixes
Add Plantower to the vendor prefixes.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-11 20:19:45 +00:00
Tomasz Duszynski
a1d642266c iio: chemical: add support for Plantower PMS7003 sensor
Add support for Plantower PMS7003 particulate matter sensor.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-02-11 20:19:33 +00:00
Jonathan Cameron
59b9bb0abc iio:chemical:sps30 Supress some switch fallthrough warnings.
Fixes warnings reported on linux-next but marking one path
and adding an explicit return in the other.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Andreas Brauchli <a.brauchli@elementarea.net>
Acked-by: Tomasz Duszynski <tduszyns@gmail.com>
2019-02-11 20:07:51 +00:00
Michael Clark
94ee12b507
MIPS: fix truncation in __cmpxchg_small for short values
__cmpxchg_small erroneously uses u8 for load comparison which can
be either char or short. This patch changes the local variable to
u32 which is sufficiently sized, as the loaded value is already
masked and shifted appropriately. Using an integer size avoids
any unnecessary canonicalization from use of non native widths.

This patch is part of a series that adapts the MIPS small word
atomics code for xchg and cmpxchg on short and char to RISC-V.

Cc: RISC-V Patches <patches@groups.riscv.org>
Cc: Linux RISC-V <linux-riscv@lists.infradead.org>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Signed-off-by: Michael Clark <michaeljclark@mac.com>
[paul.burton@mips.com:
  - Fix varialble typo per Jonas Gorski.
  - Consolidate load variable with other declarations.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 3ba7f44d2b ("MIPS: cmpxchg: Implement 1 byte & 2 byte cmpxchg()")
Cc: stable@vger.kernel.org # v4.13+
2019-02-11 12:02:08 -08:00
Changbin Du
85acbb21b9 tracing: Change the function format to display function names by perf
Here is an example for this change.

$ sudo perf record -e 'ftrace:function' --filter='ip==schedule'
$ sudo perf report

The output of perf before this patch:

\# Samples: 100  of event 'ftrace:function'
\# Event count (approx.): 100
\#
\# Overhead  Trace output
\# ........  ......................................
\#
    51.00%   ffffffff81f6aaa0 <-- ffffffff81158e8d
    29.00%   ffffffff81f6aaa0 <-- ffffffff8116ccb2
     8.00%   ffffffff81f6aaa0 <-- ffffffff81f6f2ed
     4.00%   ffffffff81f6aaa0 <-- ffffffff811628db
     4.00%   ffffffff81f6aaa0 <-- ffffffff81f6ec5b
     2.00%   ffffffff81f6aaa0 <-- ffffffff81f6f21a
     1.00%   ffffffff81f6aaa0 <-- ffffffff811b04af
     1.00%   ffffffff81f6aaa0 <-- ffffffff8143ce17

After this patch:

\# Samples: 36  of event 'ftrace:function'
\# Event count (approx.): 36
\#
\# Overhead  Trace output
\# ........  ............................................
\#
    38.89%   schedule <-- schedule_hrtimeout_range_clock
    27.78%   schedule <-- worker_thread
    13.89%   schedule <-- schedule_timeout
    11.11%   schedule <-- smpboot_thread_fn
     5.56%   schedule <-- rcu_gp_kthread
     2.78%   schedule <-- exit_to_usermode_loop

Link: http://lkml.kernel.org/r/20190209161919.32350-1-changbin.du@gmail.com

Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-02-11 14:53:43 -05:00
Davidlohr Bueso
e451eb5106 xsk: share the mmap_sem for page pinning
Holding mmap_sem exclusively for a gup() is an overkill. Lets
share the lock and replace the gup call for gup_longterm(), as
it is better suited for the lifetime of the pinning.

Fixes: c0c77d8fb7 ("xsk: add user memory registration support sockopt")
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Bjorn Topel <bjorn.topel@intel.com>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
CC: netdev@vger.kernel.org
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-02-11 20:51:09 +01:00
Greg Kroah-Hartman
4417967bf2 typed componented support + i915/snd-hda changes
This is needed by the new MEI-HDCP support in i915, so will need to go
 in through drm and drivers-misc trees at least.
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Merge tag 'topic/component-typed-2019-02-11' of git://anongit.freedesktop.org/drm/drm-intel into driver-core-next

Daniel writes:

typed componented support + i915/snd-hda changes

This is needed by the new MEI-HDCP support in i915, so will need to go
in through drm and drivers-misc trees at least.

* tag 'topic/component-typed-2019-02-11' of git://anongit.freedesktop.org/drm/drm-intel:
  i915/snd_hdac: I915 subcomponent for the snd_hdac
  components: multiple components for a device
  component: Add documentation
2019-02-11 20:32:31 +01:00
David S. Miller
4d73eaee24 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Out-of-bound access to packet data from the snmp nat helper,
   from Jann Horn.

2) ICMP(v6) error packets are set as related traffic by conntrack,
   update protocol number before calling nf_nat_ipv4_manip_pkt()
   to use ICMP(v6) rather than the original protocol number,
   from Florian Westphal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-11 10:42:50 -08:00
Jan Kara
f96c3ac8df ext4: fix crash during online resizing
When computing maximum size of filesystem possible with given number of
group descriptor blocks, we forget to include s_first_data_block into
the number of blocks. Thus for filesystems with non-zero
s_first_data_block it can happen that computed maximum filesystem size
is actually lower than current filesystem size which confuses the code
and eventually leads to a BUG_ON in ext4_alloc_group_tables() hitting on
flex_gd->count == 0. The problem can be reproduced like:

truncate -s 100g /tmp/image
mkfs.ext4 -b 1024 -E resize=262144 /tmp/image 32768
mount -t ext4 -o loop /tmp/image /mnt
resize2fs /dev/loop0 262145
resize2fs /dev/loop0 300000

Fix the problem by properly including s_first_data_block into the
computed number of filesystem blocks.

Fixes: 1c6bd7173d "ext4: convert file system to meta_bg if needed..."
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2019-02-11 13:30:32 -05:00
Linus Torvalds
fb7453e61a s390 update with bug fixes for 5.0-rc6
- Fix specification exception on z196 during ap probe
 
  - A fix for suspend-to-disk, the VMAP stack patch broke the
    swsusp_arch_suspend function
 
  - The EMC CKD ioctl of the dasd driver needs an additional size
    check for user space data
 
  - Revert an incorrect patch for the PCI base code that removed
    a bit lock that turned out to be required after all
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Merge tag 's390-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 bug fixes from Martin Schwidefsky:

 - Fix specification exception on z196 during ap probe

 - A fix for suspend-to-disk, the VMAP stack patch broke the
   swsusp_arch_suspend function

 - The EMC CKD ioctl of the dasd driver needs an additional size check
   for user space data

 - Revert an incorrect patch for the PCI base code that removed a bit
   lock that turned out to be required after all

* tag 's390-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  Revert "s390/pci: remove bit_lock usage in interrupt handler"
  s390/zcrypt: fix specification exception on z196 during ap probe
  s390/dasd: fix using offset into zero size array error
  s390/suspend: fix stack setup in swsusp_arch_suspend
2019-02-11 10:28:48 -08:00
Linus Torvalds
244cce14c1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha
Pull alpha fixes from Matt Turner:
 "A few changes for alpha, including a build fix, a fix for the Eiger
  platform, and a fix for a tricky bug uncovered by the strace test
  suite that has existed since at least 1997 (v2.1.32)!"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
  alpha: fix page fault handling for r16-r18 targets
  alpha: Fix Eiger NR_IRQS to 128
  tools uapi: fix Alpha support
2019-02-11 10:19:33 -08:00
Steve Magnani
4f5edd82eb udf: disallow RW mount without valid integrity descriptor
Refuse to mount a volume read-write without a coherent Logical Volume
Integrity Descriptor, because we can't generate truly unique IDs without
one.

This fixes a bug where all inodes created on a UDF filesystem following
mount without a coherent LVID are assigned unique ID 0 which can then
confuse other UDF implementations.

Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Signed-off-by: Jan Kara <jack@suse.cz>
2019-02-11 18:31:35 +01:00
Waiman Long
1413d9af24 Documentation: Fix grammatical error in sysctl/fs.txt & clarify negative dentry
Fix a grammatical error in the dentry-state text and clarify the usage
of negative dentries.

Fixes: af0c9af1b3 ("fs/dcache: Track & report number of negative dentries")
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-02-11 09:10:22 -08:00
Mikulas Patocka
ff0c129d3b dm crypt: don't overallocate the integrity tag space
bio_sectors() returns the value in the units of 512-byte sectors (no
matter what the real sector size of the device).  dm-crypt multiplies
bio_sectors() by on_disk_tag_size to calculate the space allocated for
integrity tags.  If dm-crypt is running with sector size larger than
512b, it allocates more data than is needed.

Device Mapper trims the extra space when passing the bio to
dm-integrity, so this bug didn't result in any visible misbehavior.
But it must be fixed to avoid wasteful memory allocation for the block
integrity payload.

Fixes: ef43aa3806 ("dm crypt: add cryptographic data integrity protection (authenticated encryption)")
Cc: stable@vger.kernel.org # 4.12+
Reported-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-02-11 12:06:48 -05:00
Axel Lin
7932a88052
regulator: lp8788-buck: Convert to linear range
linear range is suitable for this driver, let's convert it to linear range.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 17:00:22 +00:00
Krzysztof Kozlowski
56b5d4ea77
regulator: s2mps11: Fix steps for buck7, buck8 and LDO35
LDO35 uses 25 mV step, not 50 mV.  Bucks 7 and 8 use 12.5 mV step
instead of 6.25 mV.  Wrong step caused over-voltage (LDO35) or
under-voltage (buck7 and 8) if regulators were used (e.g. on Exynos5420
Arndale Octa board).

Cc: <stable@vger.kernel.org>
Fixes: cb74685ecb ("regulator: s2mps11: Add samsung s2mps11 regulator driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 16:59:29 +00:00
Florian Westphal
8303b7e8f0 netfilter: nat: fix spurious connection timeouts
Sander Eikelenboom bisected a NAT related regression down
to the l4proto->manip_pkt indirection removal.

I forgot that ICMP(v6) errors (e.g. PKTTOOBIG) can be set as related
to the existing conntrack entry.

Therefore, when passing the skb to nf_nat_ipv4/6_manip_pkt(), that
ended up calling the wrong l4 manip function, as tuple->dst.protonum
is the original flows l4 protocol (TCP, UDP, etc).

Set the dst protocol field to ICMP(v6), we already have a private copy
of the tuple due to the inversion of src/dst.

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
Fixes: faec18dbb0 ("netfilter: nat: remove l4proto->manip_pkt")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-02-11 17:43:17 +01:00
Jann Horn
c4c07b4d6f netfilter: nf_nat_snmp_basic: add missing length checks in ASN.1 cbs
The generic ASN.1 decoder infrastructure doesn't guarantee that callbacks
will get as much data as they expect; callbacks have to check the `datalen`
parameter before looking at `data`. Make sure that snmp_version() and
snmp_helper() don't read/write beyond the end of the packet data.

(Also move the assignment to `pdata` down below the check to make it clear
that it isn't necessarily a pointer we can use before the `datalen` check.)

Fixes: cc2d58634e ("netfilter: nf_nat_snmp_basic: use asn1 decoder library")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-02-11 17:43:17 +01:00
Aditya Swarup
3b91a93597 drm/i915/cnl: Fix CNL macros for Voltage Swing programming
CNL macros for register groups CNL_PORT_TX_DW2_* / CNL_PORT_TX_DW5_* are
configured incorrectly wrt definition of _CNL_PORT_TX_DW_GRP.

v2: Jani suggested to keep the macros organized semantically i.e., by
function, secondarily by port/pipe/transcoder.->(dw, port)

Fixes: 4e53840fdf ("drm/i915/icl: Introduce new macros to get combophy registers")
Cc: Clint Taylor <clinton.a.taylor@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Aditya Swarup <aditya.swarup@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190110230844.9213-1-aditya.swarup@intel.com
(cherry picked from commit b14c06ec02)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2019-02-11 18:35:43 +02:00
Clint Taylor
9659c1af45 drm/i915/icl: combo port vswing programming changes per BSPEC
In August 2018 the BSPEC changed the ICL port programming sequence to
closely resemble earlier gen programming sequence. Restrict combo phy to
HBR max rate unless eDP panel is connected to port.

v2: remove debug code that Imre found
v3: simplify translation table if-else
v4: edp translation table now based on link rate and low_swing
v5: Misc review comments + r-b
BSpec: 21257
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1545084827-5776-1-git-send-email-clinton.a.taylor@intel.com
(cherry picked from commit b265a2a625)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2019-02-11 18:35:08 +02:00
Rakesh Pillai
1863008369 ath10k: fix shadow register implementation for WCN3990
WCN3990 supports shadow registers write operation support
for copy engine for regular operation in powersave mode.

Since WCN3990 is a 64-bit target, the shadow register
implementation needs to be done in the copy engine handlers
for 64-bit target. Currently the shadow register implementation
is present in the 32-bit target handlers of copy engine.

Fix the shadow register copy engine write operation
implementation for 64-bit target(WCN3990).

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Fixes: b7ba83f7c4 ("ath10k: add support for shadow register for WNC3990")
Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:35:03 +02:00
Rakesh Pillai
3c545a2593 ath10k: enable Factory Test Mode for WCN3990
The support to put WCN3990 firmware into Factory
test mode is not present currently. The WCN3990
firmware can operate in Factory test mode based
on the mode it receives in the wlan enable message
from the host driver.

When the host driver is started in testmode send
the operating mode as UTF mode, to the WCN3990
firmware, in the wlan enable message to start the
firmware in Factory test mode.

Tested on: WCN3990
Tested FW: WLAN.HL.2.0-01192-QCAHLSWMTPLZ-1.

Signed-off-by: Rakesh Pillai <pillair@codeaurora.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:33:53 +02:00
Brian Norris
25733c4e67 ath10k: pci: use mutex for diagnostic window CE polling
The DIAG copy engine is only used via polling, but it holds a spinlock
with softirqs disabled. Each iteration of our read/write loops can
theoretically take 20ms (two 10ms timeout loops), and this loop can be
run an unbounded number of times while holding the spinlock -- dependent
on the request size given by the caller.

As of commit 39501ea641 ("ath10k: download firmware via diag Copy
Engine for QCA6174 and QCA9377."), we transfer large chunks of firmware
memory using this mechanism. With large enough firmware segments, this
becomes an exceedingly long period for disabling soft IRQs. For example,
with a 500KiB firmware segment, in testing QCA6174A, I see 200 loop
iterations of about 50-100us each, which can total about 10-20ms.

In reality, we don't really need to block softirqs for this duration.
The DIAG CE is only used in polling mode, and we only need to hold
ce_lock to make sure any CE bookkeeping is done without screwing up
another CE. Otherwise, we only need to ensure exclusion between
ath10k_pci_diag_{read,write}_mem() contexts.

This patch moves to use fine-grained locking for the shared ce_lock,
while adding a new mutex just to ensure mutual exclusion of diag
read/write operations.

Tested on QCA6174A, firmware version WLAN.RM.4.4.1-00132-QCARMSWPZ-1.

Fixes: 39501ea641 ("ath10k: download firmware via diag Copy Engine for QCA6174 and QCA9377.")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:31:55 +02:00
Govind Singh
c40e448e0b ath10k: request credit report if flow control enabled on ep
FW credit flow control is enabled for only WMI ctrl
service(CE3) but credit update is requested unconditionally
on all HTC services as part of HTC tx in CE3/CE0/CE4.

This is causing WOW failure as FW is not expecting credit
report request on other end-points(CE0/CE4).

Request credit report only on those endpoints where
credit flow control is enabled.

Testing:
    Tested on WCN3990 HW.
    Tested FW: WLAN.HL.2.0-01192-QCAHLSWMTPLZ-1.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:29:59 +02:00
Govind Singh
de8781d7e7 ath10k: disable interface pause wow config for integrated chipset
wow pause iface config controls the PCI D0/D3-WOW cases for pcie
bus state. Firmware does not expects WOW_IFACE_PAUSE_ENABLED config
for bus/link that cannot be suspended ex:snoc and does not trigger
common subsystem shutdown.
Disable interface pause wow config for integrated chipset(WCN3990)
for correct WOW configuration in the firmware.

Testing:
    Tested on WCN3990 HW.
    Tested FW: WLAN.HL.2.0-01192-QCAHLSWMTPLZ-1.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:29:49 +02:00
Govind Singh
185be1c664 ath10k: enable bus layer suspend/resume for WCN3990
Register snoc bus layer suspend/resume PM ops and configure
the wakeup source(CE2) for the device.

Testing:
    Tested on WCN3990 HW.
    Tested FW: WLAN.HL.2.0-01192-QCAHLSWMTPLZ-1.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:29:40 +02:00
Christian Lamparter
05e7ba24b1 ath10k: implement set_base_macaddr to fix rx-bssid mask in multiple APs conf
Many integrated QCA9984 WiFis in various IPQ806x platform routers
from various vendors (Netgear R7800, ZyXEL NBG6817, TP-LINK C2600,
etc.) have either blank, bogus or non-unique MAC-addresses in
their calibration data.

As a result, OpenWrt utilizes a discouraged binary calibration data
patching method that allows to modify the device's MAC-addresses right
at the source. This is because the ath10k' firmware extracts the MAC
address from the supplied radio/calibration data and issues a response
to the ath10k linux driver. Which was designed to take the main MAC in
ath10k_wmi_event_ready().

Part of the "setting an alternate MAC" issue was already tackled by a
patch from Brian Norris:
commit 9d5804662c
("ath10k: retrieve MAC address from system firmware if provided")
by allowing the option to specify an alternate MAC-address with the
established device_get_mac_address() function which extracts the right
address from DeviceTree/fwnode mac-address or local-mac-address
properties and saves it for later.

However, Ben Greear noted that the Qualcomm's ath10k firmware is liable
to not properly calculate its rx-bssid mask in this case. This can cause
issues in the popluar "multiple AP with a single ath10k instance"
configurations.

To improve MAC address handling, Felix Fietkau suggested to call
pdev_set_base_macaddr_cmdid before bringing up the first vif and
use the first vif MAC address there. Which is in ath10k_core_start().

This patch implement Felix Fietkau's request to
"call pdev_set_base_macaddr_cmdid before bringing up the first vif".
The pdev_set_base_macaddr_cmdid is already declared for all devices
and version. The driver just needed the support code for this
function.

Tested on:
QCA9880/CUS223, firmwares: 10.2.4.13-2, 10.2.4.70.44, 10.2.4-1.0-00041
QCA9887/MR33 firmware:10.2.4-1.0-00033
QCA4019/RT-AC58U firmware: 10.4-3.4-00104, 10.4-3.5.3-00057
QCA9984/R7800 firmware: Candela Technologies (CT) Firmware

BugLink: https://lists.openwrt.org/pipermail/openwrt-devel/2018-November/014595.html
Fixes: 9d5804662c ("ath10k: retrieve MAC address from system firmware if provided")
Cc: Brian Norris <briannorris@chromium.org>
Cc: Ben Greear <greearb@candelatech.com>
Cc: Felix Fietkau <nbd@nbd.name>
Cc: Mathias Kresin <dev@kresin.me>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:27:49 +02:00
Abhishek Ambure
7d94f862d6 ath10k: update GCMP & GCMP-256 cipher suite number for WCN3990
TLV based firmware ex. QCA6174, WCN3990 expects key cipher value
set to 9 while non-TLV firmware expects key cipher value set to 8
for enabling GCMP and GCMP-256 cipher suites.

To fix this problem, attach the key cipher suite values based on
wmi version.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Abhishek Ambure <aambure@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:26:04 +02:00
Abhishek Ambure
7ba31e6e0c ath10k: assign 'n_cipher_suites = 11' for WCN3990 to enable WPA3
Hostapd uses CCMP, GCMP & GCMP-256 as 'wpa_pairwise' option to run WPA3.
In WCN3990 firmware cipher suite numbers 9 to 11 are for CCMP,
GCMP & GCMP-256.

To enable CCMP, GCMP & GCMP-256 cipher suites in WCN3990 firmware,
host sets 'n_cipher_suites = 11' while initializing hardware parameters.

Tested HW: WCN3990
Tested FW: WLAN.HL.2.0-01188-QCAHLSWMTPLZ-1

Signed-off-by: Abhishek Ambure <aambure@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-11 18:25:54 +02:00
Cody Schuffelen
f440b12545 virt_wifi: Remove REGULATORY_WIPHY_SELF_MANAGED
REGULATORY_WIPHY_SELF_MANAGED as set here breaks NL80211_CMD_GET_REG,
because it expects the wiphy to do regulatory management. Since
virt_wifi does not do regulatory management, this triggers a WARN_ON in
NL80211_CMD_GET_REG and fails the netlink command.

Removing REGULATORY_WIPHY_SELF_MANAGED fixes the problem and the virtual
wireless network continues to work.

Signed-off-by: Cody Schuffelen <schuffelen@google.com>
Acked-by: Alistair Strachan <astrachan@google.com>
Acked-by: Greg Hartman <ghartman@google.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-11 17:10:48 +01:00
Sergej Sawazki
e9418629e2
ASoC: wm8741: Set OSR mode in hw_params()
For correct operation of the digital filtering and other processing on the
WM8741, the user must ensure the correct value of OSR[1:0] is set at all
times.[1] Hence, depending the selected sampling rate, set the OSR (over-
sampling rate) mode in hw_params().

References:
	[1] "WM8741 Data Sheet"

Signed-off-by: Sergej Sawazki <sergej@taudac.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 16:05:56 +00:00
Sergej Sawazki
36b1599340
ASoC: wm8741: Add digital mute callback
Signed-off-by: Sergej Sawazki <sergej@taudac.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 16:05:28 +00:00
Ranjani Sridharan
d9c0b2afe8 ALSA: PCM: check if ops are defined before suspending PCM
BE dai links only have internal PCM's and their substream ops may
not be set. Suspending these PCM's will result in their
 ops->trigger() being invoked and cause a kernel oops.
So skip suspending PCM's if their ops are NULL.

[ NOTE: this change is required now for following the recent PCM core
  change to get rid of snd_pcm_suspend() call.  Since DPCM BE takes
  the runtime carried from FE while keeping NULL ops, it can hit this
  bug.  See details at:
     https://github.com/thesofproject/linux/pull/582
  -- tiwai ]

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-02-11 17:04:25 +01:00
Pierre-Louis Bossart
c7ba4e5396
ASoC: hdac_hdmi: use devm_kzalloc for all structures
Loading/unloading modules exposes issues with memory allocation, which
is a mix of devm_kzalloc and manual kzalloc. Move to devm_k routines
everywhere to simplify all this.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 16:01:59 +00:00
KaiChieh Chuang
49ff8cfb17
ASoC: mediatek: use %pOFn instead of device_node.name
In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 16:01:48 +00:00
Kirill Marinushkin
1e61405e20
ASoC: pcm3060: Add clock select
ADC and DAC can be clocked from separate or same sources CLK1 and CLK2.
By default, ADC is clocked from CLK1, and DAC - from CLK2.

This commits allows sound cards to selest a proper clock source during
`hw_params()` via `snd_soc_dai_set_sysclk()`. It makes possible to have a
single clock source for both ADC and DAC.

Signed-off-by: Kirill Marinushkin <kmarinushkin@birdec.tech>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 16:01:31 +00:00
Kirill Marinushkin
a3daee0859
ASoC: pcm3060: Add soft reset on probe
Softly reset registers values on module probe

Signed-off-by: Kirill Marinushkin <kmarinushkin@birdec.tech>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-02-11 15:59:22 +00:00
Johannes Berg
5d4071abd9 cfg80211: fix and clean up cfg80211_gen_new_bssid()
Fix cfg80211_gen_new_bssid() to not rely on u64 modulo arithmetic,
which isn't needed since we really just want to mask there. Also,
clean it up to calculate the mask only once and use GENMASK_ULL()
instead of open-coding the mask calculation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-11 16:54:08 +01:00
Jouni Malinen
7388afe091 cfg80211: Use const more consistently in for_each_element macros
Enforce the first argument to be a correct type of a pointer to struct
element and avoid unnecessary typecasts from const to non-const pointers
(the change in validate_ie_attr() is needed to make this part work). In
addition, avoid signed/unsigned comparison within for_each_element() and
mark struct element packed just in case.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-02-11 16:51:18 +01:00
Federico Vaga
db693aded3 doc:dmaengine: clarify DMA desc. pointer after submission
It clarifies that the DMA description pointer returned by
`dmaengine_prep_*` function should not be used after submission.

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-02-11 08:40:16 -07:00
Alexei Starovoitov
3defaf2f15 bpf: fix lockdep false positive in stackmap
Lockdep warns about false positive:
[   11.211460] ------------[ cut here ]------------
[   11.211936] DEBUG_LOCKS_WARN_ON(depth <= 0)
[   11.211985] WARNING: CPU: 0 PID: 141 at ../kernel/locking/lockdep.c:3592 lock_release+0x1ad/0x280
[   11.213134] Modules linked in:
[   11.214954] RIP: 0010:lock_release+0x1ad/0x280
[   11.223508] Call Trace:
[   11.223705]  <IRQ>
[   11.223874]  ? __local_bh_enable+0x7a/0x80
[   11.224199]  up_read+0x1c/0xa0
[   11.224446]  do_up_read+0x12/0x20
[   11.224713]  irq_work_run_list+0x43/0x70
[   11.225030]  irq_work_run+0x26/0x50
[   11.225310]  smp_irq_work_interrupt+0x57/0x1f0
[   11.225662]  irq_work_interrupt+0xf/0x20

since rw_semaphore is released in a different task vs task that locked the sema.
It is expected behavior.
Fix the warning with up_read_non_owner() and rwsem_release() annotation.

Fixes: bae77c5eb5 ("bpf: enable stackmap with build_id in nmi context")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2019-02-11 16:36:24 +01:00
Alexey Budankov
f4fe11b7bf perf record: Implement --affinity=node|cpu option
Implement --affinity=node|cpu option for the record mode defaulting
to system affinity mask bouncing.

Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/083f5422-ece9-10dd-8305-bf59c860f10f@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-02-11 12:32:21 -03:00
Jonathan Neuschäfer
2c71d305ca docs: process: Remove outdated info about -git patches
As can be seen by clicking around the timeline on web.archive.org[1],
there were no -git patches/tarballs on kernel.org since release 3.1.

[1]: https://web.archive.org/web/20111103073843/http://www.kernel.org/

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-02-11 08:30:06 -07:00
Randy Dunlap
c9389ad814 Documentation: fix lg-laptop.rst warnings
Fix markup warnings by inserting blank lines.
Also correct one typo.

Documentation/laptops/lg-laptop.rst:2: WARNING: Explicit markup ends without a blank line; unexpected unindent.
Documentation/laptops/lg-laptop.rst:16: WARNING: Unexpected indentation.
Documentation/laptops/lg-laptop.rst:17: WARNING: Block quote ends without a blank line; unexpected unindent.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matan Ziv-Av <matan@svgalib.org>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-02-11 08:27:47 -07:00