platform/kernel/linux-rpi.git
6 years agoStaging: comedi: comedi_pcmcia.h: fixed missing or malformed SPDX-License-Identifier
ankit patel [Fri, 15 Jun 2018 18:42:15 +0000 (13:42 -0500)]
Staging: comedi: comedi_pcmcia.h: fixed missing or malformed SPDX-License-Identifier

Fixed SPDX-License-Identifier comment on first line

Signed-off-by: ankit patel <ankit.mayurbhai.patel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoStaging: comedi: comedilib.h: fixed missing or malformed SPDX-License-Identifier
ankit patel [Fri, 15 Jun 2018 18:42:16 +0000 (13:42 -0500)]
Staging: comedi: comedilib.h: fixed missing or malformed SPDX-License-Identifier

Fixed SPDX-License-Identifier comment on first line

Signed-off-by: ankit patel <ankit.mayurbhai.patel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoStaging: comedi: comedi.h: fixed missing or malformed SPDX-License-Identifier
ankit patel [Fri, 15 Jun 2018 18:42:12 +0000 (13:42 -0500)]
Staging: comedi: comedi.h: fixed missing or malformed SPDX-License-Identifier

Fixed SPDX-License-Identifier comment on first line

Signed-off-by: ankit patel <ankit.mayurbhai.patel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: goldfish: Fix checkpatch CHECK in goldfish_audio.c
Roman Kiryanov [Fri, 15 Jun 2018 22:57:21 +0000 (15:57 -0700)]
staging: goldfish: Fix checkpatch CHECK in goldfish_audio.c

Fix "CHECK: Alignment should match open parenthesis"

Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: goldfish: Clear audio read buffer status after each read
Joshua Lang [Mon, 4 Jun 2018 21:08:22 +0000 (14:08 -0700)]
staging: goldfish: Clear audio read buffer status after each read

The buffer_status field is interrupt updated. After every read request,
the buffer_status read field should be reset so that on the next loop
iteration we don't read a stale value and read data before the
device is ready.

Signed-off-by: Joshua Lang <joshualang@google.com>
Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: goldfish: Enable ACPI-based enumeration for goldfish audio
Yu Ning [Mon, 4 Jun 2018 21:08:21 +0000 (14:08 -0700)]
staging: goldfish: Enable ACPI-based enumeration for goldfish audio

Add an ACPI id to make goldfish audio to support ACPI enumeration.

Signed-off-by: Yu Ning <yu.ning@intel.com>
Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: goldfish: Replace read and write macros with functions
Roman Kiryanov [Mon, 4 Jun 2018 21:08:19 +0000 (14:08 -0700)]
staging: goldfish: Replace read and write macros with functions

Functions are less error-prone and generate cleaner compilation.

Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8723bs: drop test
Julia Lawall [Wed, 6 Jun 2018 23:34:02 +0000 (01:34 +0200)]
staging: rtl8723bs: drop test

The test selects between two identical values, so it doesn't look useful.
It turns out that the tested expression can only be true anyway, so drop
the test, the corresponding parameter, and the corresponding argument at
the only call site.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e,e1;
@@

* e ? e1 : e1
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtlwifi: Fix "Alwyas"->"Always"
Sabin Mihai Rapan [Sat, 2 Jun 2018 09:04:14 +0000 (11:04 +0200)]
staging: rtlwifi: Fix "Alwyas"->"Always"

Trivial fix to spelling mistake in comment text.

Signed-off-by: Sabin Mihai Rapan <sabin.rapan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtlwifi: Fix "writen"->"written"
Sabin Mihai Rapan [Sat, 2 Jun 2018 09:04:13 +0000 (11:04 +0200)]
staging: rtlwifi: Fix "writen"->"written"

Trivial fix to spelling mistake in comment text.

Signed-off-by: Sabin Mihai Rapan <sabin.rapan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtlwifi: Fix "Trafic"->"Traffic"
Sabin Mihai Rapan [Sat, 2 Jun 2018 09:04:12 +0000 (11:04 +0200)]
staging: rtlwifi: Fix "Trafic"->"Traffic"

Trivial fix to spelling mistake in comment text.

Signed-off-by: Sabin Mihai Rapan <sabin.rapan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: vc04_services: make a couple of pointers static
Colin Ian King [Wed, 6 Jun 2018 08:06:00 +0000 (09:06 +0100)]
staging: vc04_services: make a couple of pointers static

The pointers vchiq_dbg_dir and vchiq_dbg_clients are local to the
source and do not need to be in global scope, so make them static.

Cleans up sparse warnings:
warning: symbol 'vchiq_dbg_dir' was not declared. Should it be static?
warning: symbol 'vchiq_dbg_clients' was not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: vboxvideo: Update driver to use drm_dev_register.
Fabio Rafael da Rosa [Mon, 4 Jun 2018 02:24:45 +0000 (23:24 -0300)]
staging: vboxvideo: Update driver to use drm_dev_register.

The use of load and unload hooks is deprecated. DRM drivers should
use drm_dev_alloc|drm_dev_init and drm_dev_register for initialization
and publishing.

Signed-off-by: Fabio Rafael da Rosa <fdr@pid42.net>
Reviewed-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: wilc1000: move 'txq_spinlock_flags' from 'wilc' structure to local variable
Ajay Singh [Mon, 4 Jun 2018 05:29:10 +0000 (10:59 +0530)]
staging: wilc1000: move 'txq_spinlock_flags' from 'wilc' structure to local variable

Cleanup patch to remove 'txq_spinlock_flags' element in 'wilc' and used
local variable 'flag' in wilc_wlan_txq_filter_dup_tcp_ack().

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: wilc1000: remove 'rxq_entries' from 'wilc' struct
Ajay Singh [Mon, 4 Jun 2018 05:29:09 +0000 (10:59 +0530)]
staging: wilc1000: remove 'rxq_entries' from 'wilc' struct

Removed unnecessary 'rxq_entries' element from 'wilc' struct, as its
value is not used.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: wilc1000: use list_head to maintain 'rxq_entry_t elements in rx queue
Ajay Singh [Mon, 4 Jun 2018 05:29:08 +0000 (10:59 +0530)]
staging: wilc1000: use list_head to maintain 'rxq_entry_t elements in rx queue

Make use of 'list_head' data structure to maintain the rx buffer queue.
Modified wilc_wlan_rxq_add() to add the element at the tail by using
list_head API and wilc_wlan_rxq_remove() to remove the element from
head.

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: wilc1000: use list_head to maintain 'txq_entry_t' elements of tx queue
Ajay Singh [Mon, 4 Jun 2018 05:29:07 +0000 (10:59 +0530)]
staging: wilc1000: use list_head to maintain 'txq_entry_t' elements of tx queue

Use list_head data structure for the doubly linked list instead of own
implementation.
Only 'txq_head' is required, so removed the txq_tail pointer from
'wilc' structure.

Following functions are modified to provide data using list_head API's
wilc_wlan_txq_remove()
wilc_wlan_txq_remove_from_head()
wilc_wlan_txq_add_to_tail()
wilc_wlan_txq_add_to_head()
wilc_wlan_txq_get_first()
wilc_wlan_txq_get_next()

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoStaging: gdm724x: use match_string() helper
Yisheng Xie [Wed, 6 Jun 2018 02:21:11 +0000 (10:21 +0800)]
Staging: gdm724x: use match_string() helper

match_string() returns the index of an array for a matching string,
which can be used instead of open coded variant.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Quytelda Kahja <quytelda@tamalin.org>
Cc: devel@driverdev.osuosl.org
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rts5208: add error handling into rtsx_probe
Anton Vasilyev [Wed, 13 Jun 2018 17:34:43 +0000 (20:34 +0300)]
staging: rts5208: add error handling into rtsx_probe

If rtsx_probe() fails to allocate dev->chip, then release_everything()
will crash on uninitialized dev->cmnd_ready complete.

Patch adds error handling into rtsx_probe.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: clocking-wizard: prefer 'help' in Kconfig
Kyle Buzby [Mon, 11 Jun 2018 03:09:30 +0000 (22:09 -0500)]
staging: clocking-wizard: prefer 'help' in Kconfig

Fixes the checkpatch warning:

WARNING: prefer 'help' over '---help---' for new help texts
+config COMMON_CLK_XLNX_CLKWZRD

Signed-off-by: Kyle Buzby <kyle.buzby@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192u: remove redundant variables
Kenneth Lu [Sun, 10 Jun 2018 08:17:52 +0000 (16:17 +0800)]
staging: rtl8192u: remove redundant variables

Clean up W=1 warning: variable set but not used.

Signed-off-by: Kenneth Lu <kuohsianglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: remove unnecessary parentheses - Coding Style
John Whitmore [Fri, 8 Jun 2018 13:01:37 +0000 (14:01 +0100)]
staging: rtl8192e: remove unnecessary parentheses - Coding Style

Remove unneccessary parentheses, and removed unnecessary (void *) cast

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: Optimise Comparison to NULL tests - Coding Style
John Whitmore [Wed, 6 Jun 2018 11:40:02 +0000 (12:40 +0100)]
staging: rtl8192e: Optimise Comparison to NULL tests - Coding Style

Change comparison to NULL to better adhere to coding standard.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: Correct declaration of HTResetIOTSetting - Coding Style
John Whitmore [Wed, 6 Jun 2018 11:40:01 +0000 (12:40 +0100)]
staging: rtl8192e: Correct declaration of HTResetIOTSetting - Coding Style

Declaration of function was spread over three lines.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: Remove unrequired space at start of line - Coding Style
John Whitmore [Wed, 6 Jun 2018 11:40:00 +0000 (12:40 +0100)]
staging: rtl8192e: Remove unrequired space at start of line - Coding Style

Function HTIOTActIsDisableMCS14 contained spurious space at start of line.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: Correct alignment of if statements - Coding Style
John Whitmore [Wed, 6 Jun 2018 11:39:59 +0000 (12:39 +0100)]
staging: rtl8192e: Correct alignment of if statements - Coding Style

Function HTIOTPeerDetermine used incorrect indentation in if statements.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: Remove unnecessary return statements - Coding style
John Whitmore [Wed, 6 Jun 2018 11:39:58 +0000 (12:39 +0100)]
staging: rtl8192e: Remove unnecessary return statements - Coding style

Return statments from void functions are not required by the coding standard.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: Addition of prefered spacing - Coding style
John Whitmore [Wed, 6 Jun 2018 11:39:57 +0000 (12:39 +0100)]
staging: rtl8192e: Addition of prefered spacing - Coding style

Added spaces around various operators, as preferred by coding style.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: rtl8192e: Add and remove blank lines - Coding style
John Whitmore [Wed, 6 Jun 2018 11:39:56 +0000 (12:39 +0100)]
staging: rtl8192e: Add and remove blank lines - Coding style

Simple addition & removal of blank lines as required

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: pi433: fix race condition in pi433_ioctl
Hugo Lefeuvre [Thu, 14 Jun 2018 01:04:38 +0000 (21:04 -0400)]
staging: pi433: fix race condition in pi433_ioctl

In the PI433_IOC_WR_TX_CFG case in pi433_ioctl, instance->tx_cfg is
modified via

copy_from_user(&instance->tx_cfg, argp, sizeof(struct pi433_tx_cfg)))

without any kind of synchronization. In the case where two threads
would execute this same command concurrently the tx_cfg field might
enter in an inconsistent state.

Additionally: if ioctl(PI433_IOC_WR_TX_CFG) and write() execute
concurrently the tx config might be modified while it is being
copied to the fifo, resulting in potential data corruption.

Fix: Get instance->tx_cfg_lock before modifying tx config in the
PI433_IOC_WR_TX_CFG case in pi433_ioctl.

Also, do not copy data directly from user space to instance->tx_cfg.
Instead use a temporary buffer allowing future checks for correctness
of copied data and simpler code.

Signed-off-by: Hugo Lefeuvre <hle@owl.eu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-pci: Fix coding style error
Abdun Nihaal [Sat, 9 Jun 2018 13:07:42 +0000 (18:37 +0530)]
staging: mt7621-pci: Fix coding style error

This patch removes space after * to fix the following checkpatch error:

ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-spi: Remove unnecessary braces {} from single statement if block.
Sankalp Negi [Sat, 2 Jun 2018 18:37:31 +0000 (00:07 +0530)]
staging: mt7621-spi: Remove unnecessary braces {} from single statement if block.

The patch fixes following checkpatch.pl issue:
WARNING : braces {} are not necessary for single statement blocks

Signed-off-by: Sankalp Negi <sankalpnegi2310@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-spi: Add a space before open paranthesis.
Sankalp Negi [Sat, 2 Jun 2018 18:37:30 +0000 (00:07 +0530)]
staging: mt7621-spi: Add a space before open paranthesis.

The patch fixes following checkpatch.pl issue:
ERROR : space required before the open parenthesis

Signed-off-by: Sankalp Negi <sankalpnegi2310@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-spi: Use tabs for indentation instead of spaces.
Sankalp Negi [Sat, 2 Jun 2018 18:37:29 +0000 (00:07 +0530)]
staging: mt7621-spi: Use tabs for indentation instead of spaces.

The patch fixes following checkpatch.pl issue:
ERROR : code indent should use tabs where possible

Signed-off-by: Sankalp Negi <sankalpnegi2310@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-spi: Fix line over 80 characters by refactoring.
Sankalp Negi [Sat, 2 Jun 2018 18:37:28 +0000 (00:07 +0530)]
staging: mt7621-spi: Fix line over 80 characters by refactoring.

The patch fixes following checkpatch.pl issue:
WARNING : line over 80 characters

Signed-off-by: Sankalp Negi <sankalpnegi2310@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-spi: Indent case labels and switch at the same level.
Sankalp Negi [Sat, 2 Jun 2018 18:37:27 +0000 (00:07 +0530)]
staging: mt7621-spi: Indent case labels and switch at the same level.

The patch fixes following checkpatch.pl issue:
ERROR : switch and case should be at the same indent

Signed-off-by: Sankalp Negi <sankalpnegi2310@gmail.com>
Reviewed-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-dts: convert to gpio-keys
NeilBrown [Wed, 6 Jun 2018 22:04:21 +0000 (08:04 +1000)]
staging: mt7621-dts: convert to gpio-keys

Now that gpio-interrupts work correctly, we
can use gpio-keys instead of gpio-keys-polled
for the single push-button on the gbpc-1.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-dts: correct various clock frequencies.
NeilBrown [Wed, 6 Jun 2018 22:04:21 +0000 (08:04 +1000)]
staging: mt7621-dts: correct various clock frequencies.

The MT7621 documentation says that the sys clock - also known
as OCP clock for the Open Core Protocol - can be configured to
1/3 or 1/4 of the CPU clock.
Testing on my hardware, using the fact that the SPI clock is
based on the OCP clock and measuring transfer rates, shows
a clock of a little over 200MHz with a CPU clock of 900MHz.
So assume 1/4 is the default.

Also, the nor-flash in the gbpc1 is documented as accepting 50MHz
for request requests, and higher for other requests.  So set
maximum to 50MHz.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-spi: revised half-duplex message handling
NeilBrown [Wed, 6 Jun 2018 22:04:21 +0000 (08:04 +1000)]
staging: mt7621-spi: revised half-duplex message handling

The mt7621 SPI engine has a 32 byte buffer and the driver
currently only allows 32-byte read requests and 36 bytes writes
(there is a 4byte op/addr buffer).

This is an unnecessary limitation.  As the SPI clock is controlled
by the host it is quite acceptable to send a larger message in
multiple smaller transactions.  As long as Chip Select is kept asserted
the whole time, the SPI engine can be run multiple times for
a single SPI message.

This patch factors out the transaction logic and calls for each
transfer in the message.  A write transfer might leave bytes in the
buffer to be combined with a following read transfer, as this is
a common pattern.

With this in place, we can remove the current max_transfer_size limit.

In testing, this increases the read throughput for a NOR flash chip
from 1.4MB/s to 2.3MB/s, a 50% improvement.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-spi: change mt7621_spi_wait_till_ready to take struct mt7621_spi
NeilBrown [Wed, 6 Jun 2018 22:04:21 +0000 (08:04 +1000)]
staging: mt7621-spi: change mt7621_spi_wait_till_ready to take struct mt7621_spi

All callers have a 'struct mt7621_spi' and that is all
mt7621_spi_wait_till_ready() needs.  So just pass it
instead of the spi_device.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: mt7621-pci: use rt_sysc_?32() to access system-control register.
NeilBrown [Wed, 6 Jun 2018 22:04:20 +0000 (08:04 +1000)]
staging: mt7621-pci: use rt_sysc_?32() to access system-control register.

This driver currently has internal knowledge ofthe address
of system-control registers and accesses them by dereferencing
a constant pointer.

It is cleaner to use rt_sysc_r32(), rt_sysc_w32(), rt_sysc_m32()
which is a more standard interface.
So change the defined names to offsets instead of pointers,
and use these functions.

Signed-off-by: NeilBrown <neil@brown.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: speakup: refactor synths array to use a list
Justin Skists [Mon, 4 Jun 2018 09:52:12 +0000 (10:52 +0100)]
staging: speakup: refactor synths array to use a list

The synths[] array is a collection of synths acting like a list.
There is no need for synths to be an array, so refactor synths[] to use
standard kernel list_head API, instead, and modify the usages to suit.
As a side-effect, the maximum number of synths has also become redundant.

Signed-off-by: Justin Skists <justin.skists@juzza.co.uk>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: Improved readability of function comedi_nsamples_left.
Chris Opperman [Wed, 13 Jun 2018 17:14:35 +0000 (19:14 +0200)]
staging: comedi: Improved readability of function comedi_nsamples_left.

Improve readability of comedi_nsamples_left:
a) Reduce nesting by using more return statements.
b) Declare variables scans_left and samples_left at start of function.
c) Change type of scans_Left to unsigned long long to avoid cast.

Signed-off-by: Chris Opperman <eklikeroomys@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: drivers: ni_mio_common: add names to function pointer parameters.
Giulio Benetti [Tue, 12 Jun 2018 14:54:09 +0000 (16:54 +0200)]
staging: comedi: drivers: ni_mio_common: add names to function pointer parameters.

Checkpatch.pl complains about packbits function pointer that lacks
parameters name.

Add parameter names to packbits function pointer.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: drivers: cb_pcimdda: fix warning on quoted string split across lines.
Giulio Benetti [Tue, 12 Jun 2018 14:54:08 +0000 (16:54 +0200)]
staging: comedi: drivers: cb_pcimdda: fix warning on quoted string split across lines.

Checkpatch.pl complains about "quoted string split across lines" for
string in MODULE_DESCRIPTION().

Put string on only one line.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: drivers: daqboard2000: make bool bit-field unsigned int bit-fields.
Giulio Benetti [Tue, 12 Jun 2018 14:50:33 +0000 (16:50 +0200)]
staging: comedi: drivers: daqboard2000: make bool bit-field unsigned int bit-fields.

Checkpatch complains on bool bitfields to be an int or u8/u16/u32
bitfield.

Make bool bit-fields to be unsigned int bit-fields.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: drivers: amplc_pci230: make bool bit-field unsigned int bit-fields.
Giulio Benetti [Tue, 12 Jun 2018 14:50:32 +0000 (16:50 +0200)]
staging: comedi: drivers: amplc_pci230: make bool bit-field unsigned int bit-fields.

Checkpatch complains on bool bitfields to be an int or u8/u16/u32
bitfield.

Make bool bit-fields to be unsigned int bit-fields.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: drivers: amplc_dio200_common: make bool bit-field unsigned int bit...
Giulio Benetti [Tue, 12 Jun 2018 14:50:31 +0000 (16:50 +0200)]
staging: comedi: drivers: amplc_dio200_common: make bool bit-field unsigned int bit-fields.

Checkpatch complains on bool bitfields to be an int or u8/u16/u32
bitfield.

Make bool bit-fields to be unsigned int bit-fields.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: drivers: amplc_dio200: make bool bit-field unsigned int bit-fields.
Giulio Benetti [Tue, 12 Jun 2018 14:50:30 +0000 (16:50 +0200)]
staging: comedi: drivers: amplc_dio200: make bool bit-field unsigned int bit-fields.

Checkpatch complains on bool bitfields to be an int or u8/u16/u32
bitfield.

Make bool bit-fields to be unsigned int bit-fields.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: comedidev: make bool bit-field unsigned int bit-fields.
Giulio Benetti [Tue, 12 Jun 2018 14:50:29 +0000 (16:50 +0200)]
staging: comedi: comedidev: make bool bit-field unsigned int bit-fields.

Checkpatch complains on bool bitfields to be an int or u8/u16/u32
bitfield.

Make bool bit-fields to be unsigned int bit-fields.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agostaging: comedi: comedi_fops: make bool bit-field unsigned int bit-fields.
Giulio Benetti [Tue, 12 Jun 2018 14:50:28 +0000 (16:50 +0200)]
staging: comedi: comedi_fops: make bool bit-field unsigned int bit-fields.

Checkpatch complains on bool bitfields to be an int or u8/u16/u32
bitfield.

Make bool bit-fields to be unsigned int bit-fields.

Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
6 years agoLinux 4.18-rc1
Linus Torvalds [Sat, 16 Jun 2018 23:04:49 +0000 (08:04 +0900)]
Linux 4.18-rc1

6 years agoMerge tag 'for-linus-20180616' of git://git.kernel.dk/linux-block
Linus Torvalds [Sat, 16 Jun 2018 20:37:55 +0000 (05:37 +0900)]
Merge tag 'for-linus-20180616' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A collection of fixes that should go into -rc1. This contains:

   - bsg_open vs bsg_unregister race fix (Anatoliy)

   - NVMe pull request from Christoph, with fixes for regressions in
     this window, FC connect/reconnect path code unification, and a
     trace point addition.

   - timeout fix (Christoph)

   - remove a few unused functions (Christoph)

   - blk-mq tag_set reinit fix (Roman)"

* tag 'for-linus-20180616' of git://git.kernel.dk/linux-block:
  bsg: fix race of bsg_open and bsg_unregister
  block: remov blk_queue_invalidate_tags
  nvme-fabrics: fix and refine state checks in __nvmf_check_ready
  nvme-fabrics: handle the admin-only case properly in nvmf_check_ready
  nvme-fabrics: refactor queue ready check
  blk-mq: remove blk_mq_tagset_iter
  nvme: remove nvme_reinit_tagset
  nvme-fc: fix nulling of queue data on reconnect
  nvme-fc: remove reinit_request routine
  blk-mq: don't time out requests again that are in the timeout handler
  nvme-fc: change controllers first connect to use reconnect path
  nvme: don't rely on the changed namespace list log
  nvmet: free smart-log buffer after use
  nvme-rdma: fix error flow during mapping request data
  nvme: add bio remapping tracepoint
  nvme: fix NULL pointer dereference in nvme_init_subsystem
  blk-mq: reinit q->tag_set_list entry only after grace period

6 years agoMerge tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental
Linus Torvalds [Sat, 16 Jun 2018 20:25:18 +0000 (05:25 +0900)]
Merge tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental

Pull documentation fixes from Mauro Carvalho Chehab:
 "This solves a series of broken links for files under Documentation,
  and improves a script meant to detect such broken links (see
  scripts/documentation-file-ref-check).

  The changes on this series are:

   - can.rst: fix a footnote reference;

   - crypto_engine.rst: Fix two parsing warnings;

   - Fix a lot of broken references to Documentation/*;

   - improve the scripts/documentation-file-ref-check script, in order
     to help detecting/fixing broken references, preventing
     false-positives.

  After this patch series, only 33 broken references to doc files are
  detected by scripts/documentation-file-ref-check"

* tag 'docs-broken-links' of git://linuxtv.org/mchehab/experimental: (26 commits)
  fix a series of Documentation/ broken file name references
  Documentation: rstFlatTable.py: fix a broken reference
  ABI: sysfs-devices-system-cpu: remove a broken reference
  devicetree: fix a series of wrong file references
  devicetree: fix name of pinctrl-bindings.txt
  devicetree: fix some bindings file names
  MAINTAINERS: fix location of DT npcm files
  MAINTAINERS: fix location of some display DT bindings
  kernel-parameters.txt: fix pointers to sound parameters
  bindings: nvmem/zii: Fix location of nvmem.txt
  docs: Fix more broken references
  scripts/documentation-file-ref-check: check tools/*/Documentation
  scripts/documentation-file-ref-check: get rid of false-positives
  scripts/documentation-file-ref-check: hint: dash or underline
  scripts/documentation-file-ref-check: add a fix logic for DT
  scripts/documentation-file-ref-check: accept more wildcards at filenames
  scripts/documentation-file-ref-check: fix help message
  media: max2175: fix location of driver's companion documentation
  media: v4l: fix broken video4linux docs locations
  media: dvb: point to the location of the old README.dvb-usb file
  ...

6 years agoMerge tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 16 Jun 2018 20:06:18 +0000 (05:06 +0900)]
Merge tag 'fsnotify_for_v4.18-rc1' of git://git./linux/kernel/git/jack/linux-fs

Pull fsnotify updates from Jan Kara:
 "fsnotify cleanups unifying handling of different watch types.

  This is the shortened fsnotify series from Amir with the last five
  patches pulled out. Amir has modified those patches to not change
  struct inode but obviously it's too late for those to go into this
  merge window"

* tag 'fsnotify_for_v4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fsnotify: add fsnotify_add_inode_mark() wrappers
  fanotify: generalize fanotify_should_send_event()
  fsnotify: generalize send_to_group()
  fsnotify: generalize iteration of marks by object type
  fsnotify: introduce marks iteration helpers
  fsnotify: remove redundant arguments to handle_event()
  fsnotify: use type id to identify connector object type

6 years agoMerge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux
Linus Torvalds [Sat, 16 Jun 2018 20:00:24 +0000 (05:00 +0900)]
Merge tag 'fbdev-v4.18' of git://github.com/bzolnier/linux

Pull fbdev updates from Bartlomiej Zolnierkiewicz:
 "There is nothing really major here, few small fixes, some cleanups and
  dead drivers removal:

   - mark omapfb drivers as orphans in MAINTAINERS file (Tomi Valkeinen)

   - add missing module license tags to omap/omapfb driver (Arnd
     Bergmann)

   - add missing GPIOLIB dependendy to omap2/omapfb driver (Arnd
     Bergmann)

   - convert savagefb, aty128fb & radeonfb drivers to use msleep & co.
     (Jia-Ju Bai)

   - allow COMPILE_TEST build for viafb driver (media part was reviewed
     by media subsystem Maintainer)

   - remove unused MERAM support from sh_mobile_lcdcfb and shmob-drm
     drivers (drm parts were acked by shmob-drm driver Maintainer)

   - remove unused auo_k190xfb drivers

   - misc cleanups (Souptick Joarder, Wolfram Sang, Markus Elfring, Andy
     Shevchenko, Colin Ian King)"

* tag 'fbdev-v4.18' of git://github.com/bzolnier/linux: (26 commits)
  fb_omap2: add gpiolib dependency
  video/omap: add module license tags
  MAINTAINERS: make omapfb orphan
  video: fbdev: pxafb: match_string() conversion fixup
  video: fbdev: nvidia: fix spelling mistake: "scaleing" -> "scaling"
  video: fbdev: fix spelling mistake: "frambuffer" -> "framebuffer"
  video: fbdev: pxafb: Convert to use match_string() helper
  video: fbdev: via: allow COMPILE_TEST build
  video: fbdev: remove unused sh_mobile_meram driver
  drm: shmobile: remove unused MERAM support
  video: fbdev: sh_mobile_lcdcfb: remove unused MERAM support
  video: fbdev: remove unused auo_k190xfb drivers
  video: omap: Improve a size determination in omapfb_do_probe()
  video: sm501fb: Improve a size determination in sm501fb_probe()
  video: fbdev-MMP: Improve a size determination in path_init()
  video: fbdev-MMP: Delete an error message for a failed memory allocation in two functions
  video: auo_k190x: Delete an error message for a failed memory allocation in auok190x_common_probe()
  video: sh_mobile_lcdcfb: Delete an error message for a failed memory allocation in two functions
  video: sh_mobile_meram: Delete an error message for a failed memory allocation in sh_mobile_meram_probe()
  video: fbdev: sh_mobile_meram: Drop SUPERH platform dependency
  ...

6 years agoMerge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sat, 16 Jun 2018 07:32:04 +0000 (16:32 +0900)]
Merge branch 'afs-proc' of git://git./linux/kernel/git/viro/vfs

Pull AFS updates from Al Viro:
 "Assorted AFS stuff - ended up in vfs.git since most of that consists
  of David's AFS-related followups to Christoph's procfs series"

* 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  afs: Optimise callback breaking by not repeating volume lookup
  afs: Display manually added cells in dynamic root mount
  afs: Enable IPv6 DNS lookups
  afs: Show all of a server's addresses in /proc/fs/afs/servers
  afs: Handle CONFIG_PROC_FS=n
  proc: Make inline name size calculation automatic
  afs: Implement network namespacing
  afs: Mark afs_net::ws_cell as __rcu and set using rcu functions
  afs: Fix a Sparse warning in xdr_decode_AFSFetchStatus()
  proc: Add a way to make network proc files writable
  afs: Rearrange fs/afs/proc.c to remove remaining predeclarations.
  afs: Rearrange fs/afs/proc.c to move the show routines up
  afs: Rearrange fs/afs/proc.c by moving fops and open functions down
  afs: Move /proc management functions to the end of the file

6 years agoMerge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sat, 16 Jun 2018 07:21:50 +0000 (16:21 +0900)]
Merge branch 'work.compat' of git://git./linux/kernel/git/viro/vfs

Pull compat updates from Al Viro:
 "Some biarch patches - getting rid of assorted (mis)uses of
  compat_alloc_user_space().

  Not much in that area this cycle..."

* 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  orangefs: simplify compat ioctl handling
  signalfd: lift sigmask copyin and size checks to callers of do_signalfd4()
  vmsplice(): lift importing iovec into vmsplice(2) and compat counterpart

6 years agoMerge branch 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sat, 16 Jun 2018 07:11:40 +0000 (16:11 +0900)]
Merge branch 'work.aio' of git://git./linux/kernel/git/viro/vfs

Pull aio fixes from Al Viro:
 "Assorted AIO followups and fixes"

* 'work.aio' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  eventpoll: switch to ->poll_mask
  aio: only return events requested in poll_mask() for IOCB_CMD_POLL
  eventfd: only return events requested in poll_mask()
  aio: mark __aio_sigset::sigmask const

6 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 15 Jun 2018 22:39:34 +0000 (07:39 +0900)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Various netfilter fixlets from Pablo and the netfilter team.

 2) Fix regression in IPVS caused by lack of PMTU exceptions on local
    routes in ipv6, from Julian Anastasov.

 3) Check pskb_trim_rcsum for failure in DSA, from Zhouyang Jia.

 4) Don't crash on poll in TLS, from Daniel Borkmann.

 5) Revert SO_REUSE{ADDR,PORT} change, it regresses various things
    including Avahi mDNS. From Bart Van Assche.

 6) Missing of_node_put in qcom/emac driver, from Yue Haibing.

 7) We lack checking of the TCP checking in one special case during SYN
    receive, from Frank van der Linden.

 8) Fix module init error paths of mac80211 hwsim, from Johannes Berg.

 9) Handle 802.1ad properly in stmmac driver, from Elad Nachman.

10) Must grab HW caps before doing quirk checks in stmmac driver, from
    Jose Abreu.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (81 commits)
  net: stmmac: Run HWIF Quirks after getting HW caps
  neighbour: skip NTF_EXT_LEARNED entries during forced gc
  net: cxgb3: add error handling for sysfs_create_group
  tls: fix waitall behavior in tls_sw_recvmsg
  tls: fix use-after-free in tls_push_record
  l2tp: filter out non-PPP sessions in pppol2tp_tunnel_ioctl()
  l2tp: reject creation of non-PPP sessions on L2TPv2 tunnels
  mlxsw: spectrum_switchdev: Fix port_vlan refcounting
  mlxsw: spectrum_router: Align with new route replace logic
  mlxsw: spectrum_router: Allow appending to dev-only routes
  ipv6: Only emit append events for appended routes
  stmmac: added support for 802.1ad vlan stripping
  cfg80211: fix rcu in cfg80211_unregister_wdev
  mac80211: Move up init of TXQs
  mac80211_hwsim: fix module init error paths
  cfg80211: initialize sinfo in cfg80211_get_station
  nl80211: fix some kernel doc tag mistakes
  hv_netvsc: Fix the variable sizes in ipsecv2 and rsc offload
  rds: avoid unenecessary cong_update in loop transport
  l2tp: clean up stale tunnel or session in pppol2tp_connect's error path
  ...

6 years agoMerge tag 'modules-for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu...
Linus Torvalds [Fri, 15 Jun 2018 22:36:39 +0000 (07:36 +0900)]
Merge tag 'modules-for-v4.18' of git://git./linux/kernel/git/jeyu/linux

Pull module updates from Jessica Yu:
 "Minor code cleanup and also allow sig_enforce param to be shown in
  sysfs with CONFIG_MODULE_SIG_FORCE"

* tag 'modules-for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  module: Allow to always show the status of modsign
  module: Do not access sig_enforce directly

6 years agoMerge branch 'for-linus-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 15 Jun 2018 21:50:51 +0000 (06:50 +0900)]
Merge branch 'for-linus-4.18-rc1' of git://git./linux/kernel/git/rw/uml

Pull uml updates from Richard Weinberger:
 "Minor updates for UML:

   - fixes for our new vector network driver by Anton

   - initcall cleanup by Alexander

   - We have a new mailinglist, sourceforge.net sucks"

* 'for-linus-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Fix raw interface options
  um: Fix initialization of vector queues
  um: remove uml initcalls
  um: Update mailing list address

6 years agoMerge tag 'riscv-for-linus-4.18-merge_window' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Fri, 15 Jun 2018 21:42:43 +0000 (06:42 +0900)]
Merge tag 'riscv-for-linus-4.18-merge_window' of git://git./linux/kernel/git/palmer/riscv-linux

Pull RISC-V updates from Palmer Dabbelt:
 "This contains some small RISC-V updates I'd like to target for 4.18.

  They are all fairly small this time. Here's a short summary, there's
  more info in the commits/merges:

   - a fix to __clear_user to respect the passed arguments.

   - enough support for the perf subsystem to work with RISC-V's ISA
     defined performance counters.

   - support for sparse and cleanups suggested by it.

   - support for R_RISCV_32 (a relocation, not the 32-bit ISA).

   - some MAINTAINERS cleanups.

   - the addition of CONFIG_HVC_RISCV_SBI to our defconfig, as it's
     always present.

  I've given these a simple build+boot test"

* tag 'riscv-for-linus-4.18-merge_window' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux:
  RISC-V: Add CONFIG_HVC_RISCV_SBI=y to defconfig
  RISC-V: Handle R_RISCV_32 in modules
  riscv/ftrace: Export _mcount when DYNAMIC_FTRACE isn't set
  riscv: add riscv-specific predefines to CHECKFLAGS
  riscv: split the declaration of __copy_user
  riscv: no __user for probe_kernel_address()
  riscv: use NULL instead of a plain 0
  perf: riscv: Add Document for Future Porting Guide
  perf: riscv: preliminary RISC-V support
  MAINTAINERS: Update Albert's email, he's back at Berkeley
  MAINTAINERS: Add myself as a maintainer for SiFive's drivers
  riscv: Fix the bug in memory access fixup code

6 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 15 Jun 2018 21:37:04 +0000 (06:37 +0900)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull more kvm updates from Paolo Bonzini:
 "Mostly the PPC part of the release, but also switching to Arnd's fix
  for the hyperv config issue and a typo fix.

  Main PPC changes:

   - reimplement the MMIO instruction emulation

   - transactional memory support for PR KVM

   - improve radix page table handling"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (63 commits)
  KVM: x86: VMX: redo fix for link error without CONFIG_HYPERV
  KVM: x86: fix typo at kvm_arch_hardware_setup comment
  KVM: PPC: Book3S PR: Fix failure status setting in tabort. emulation
  KVM: PPC: Book3S PR: Enable use on POWER9 bare-metal hosts in HPT mode
  KVM: PPC: Book3S PR: Don't let PAPR guest set MSR hypervisor bit
  KVM: PPC: Book3S PR: Fix failure status setting in treclaim. emulation
  KVM: PPC: Book3S PR: Fix MSR setting when delivering interrupts
  KVM: PPC: Book3S PR: Handle additional interrupt types
  KVM: PPC: Book3S PR: Enable kvmppc_get/set_one_reg_pr() for HTM registers
  KVM: PPC: Book3S: Remove load/put vcpu for KVM_GET_REGS/KVM_SET_REGS
  KVM: PPC: Remove load/put vcpu for KVM_GET/SET_ONE_REG ioctl
  KVM: PPC: Move vcpu_load/vcpu_put down to each ioctl case in kvm_arch_vcpu_ioctl
  KVM: PPC: Book3S PR: Enable HTM for PR KVM for KVM_CHECK_EXTENSION ioctl
  KVM: PPC: Book3S PR: Support TAR handling for PR KVM HTM
  KVM: PPC: Book3S PR: Add guard code to prevent returning to guest with PR=0 and Transactional state
  KVM: PPC: Book3S PR: Add emulation for tabort. in privileged state
  KVM: PPC: Book3S PR: Add emulation for trechkpt.
  KVM: PPC: Book3S PR: Add emulation for treclaim.
  KVM: PPC: Book3S PR: Restore NV regs after emulating mfspr from TM SPRs
  KVM: PPC: Book3S PR: Always fail transactions in guest privileged state
  ...

6 years agoMerge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Linus Torvalds [Fri, 15 Jun 2018 21:35:02 +0000 (06:35 +0900)]
Merge tag 'for_linus' of git://git./linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "virtio, vhost: features, fixes

   - PCI virtual function support for virtio

   - DMA barriers for virtio strong barriers

   - bugfixes"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio: update the comments for transport features
  virtio_pci: support enabling VFs
  vhost: fix info leak due to uninitialized memory
  virtio_ring: switch to dma_XX barriers for rpmsg

6 years agofix a series of Documentation/ broken file name references
Mauro Carvalho Chehab [Thu, 14 Jun 2018 15:34:32 +0000 (12:34 -0300)]
fix a series of Documentation/ broken file name references

As files move around, their previous links break. Fix the
references for them.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoDocumentation: rstFlatTable.py: fix a broken reference
Mauro Carvalho Chehab [Thu, 14 Jun 2018 15:33:06 +0000 (12:33 -0300)]
Documentation: rstFlatTable.py: fix a broken reference

The old HOWTO was removed a long time ago. The flat table
version is not metioned elsewhere, so just get rid of the
text.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoABI: sysfs-devices-system-cpu: remove a broken reference
Mauro Carvalho Chehab [Thu, 14 Jun 2018 15:32:05 +0000 (12:32 -0300)]
ABI: sysfs-devices-system-cpu: remove a broken reference

This file doesn't exist anymore:
Documentation/cpu-freq/user-guide.txt

As the ABI already points to Documentation/cpu-freq, just
remove the broken link and the associated text.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agodevicetree: fix a series of wrong file references
Mauro Carvalho Chehab [Thu, 14 Jun 2018 15:30:30 +0000 (12:30 -0300)]
devicetree: fix a series of wrong file references

As files got renamed, their references broke.

Manually fix a series of broken refs at the DT bindings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agodevicetree: fix name of pinctrl-bindings.txt
Mauro Carvalho Chehab [Thu, 14 Jun 2018 15:24:41 +0000 (12:24 -0300)]
devicetree: fix name of pinctrl-bindings.txt

Rename:
pinctrl-binding.txt -> pinctrl-bindings.txt

In order to match the current name of this file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agodevicetree: fix some bindings file names
Mauro Carvalho Chehab [Thu, 14 Jun 2018 12:39:01 +0000 (09:39 -0300)]
devicetree: fix some bindings file names

There were some file movements that changed the location for
some DT bindings. Fix them with:
scripts/documentation-file-ref-check --fix

After manually checking if the new file makes sense.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoMAINTAINERS: fix location of DT npcm files
Mauro Carvalho Chehab [Thu, 14 Jun 2018 11:59:37 +0000 (08:59 -0300)]
MAINTAINERS: fix location of DT npcm files

The specified locations are not right. Fix the wildcard logic
to point to the correct directories.

Without that, get-maintainer won't get things right:

$ ./scripts/get_maintainer.pl --no-git-fallback --no-r --no-n --no-l -f Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm750-smp
robh+dt@kernel.org (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
mark.rutland@arm.com (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)

After the patch, it will properly point to NPCM arch maintainers:
$ ./scripts/get_maintainer.pl --no-git-fallback --no-r --no-n --no-l -f Documentation/devicetree/bindings/arm/cpu-enable-method/nuvoton,npcm750-smp
avifishman70@gmail.com (supporter:ARM/NUVOTON NPCM ARCHITECTURE)
tmaimon77@gmail.com (supporter:ARM/NUVOTON NPCM ARCHITECTURE)
robh+dt@kernel.org (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
mark.rutland@arm.com (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)

Cc: Avi Fishman <avifishman70@gmail.com>
Cc: Tomer Maimon <tmaimon77@gmail.com>
Cc: Patrick Venture <venture@google.com>
Cc: Nancy Yuen <yuenn@google.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoMAINTAINERS: fix location of some display DT bindings
Mauro Carvalho Chehab [Thu, 14 Jun 2018 11:01:00 +0000 (08:01 -0300)]
MAINTAINERS: fix location of some display DT bindings

Those files got a manufacturer's name prepended and were moved around.
Adjust their references accordingly.

Also, due those movements, Documentation/devicetree/bindings/video
doesn't exist anymore.

Cc: David Airlie <airlied@linux.ie>
Cc: David Lechner <david@lechnology.com>
Cc: Peter Senna Tschudin <peter.senna@collabora.com>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Cc: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Alison Wang <alison.wang@nxp.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agokernel-parameters.txt: fix pointers to sound parameters
Mauro Carvalho Chehab [Thu, 14 Jun 2018 10:43:07 +0000 (07:43 -0300)]
kernel-parameters.txt: fix pointers to sound parameters

The alsa parameters file was renamed to alsa-configuration.rst.

With regards to OSS, it got retired as a hole by  at changeset
727dede0ba8a ("sound: Retire OSS"). So, it doesn't make sense
to keep mentioning it at kernel-parameters.txt.

Fixes: 727dede0ba8a ("sound: Retire OSS")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agobindings: nvmem/zii: Fix location of nvmem.txt
Mauro Carvalho Chehab [Thu, 14 Jun 2018 10:18:45 +0000 (07:18 -0300)]
bindings: nvmem/zii: Fix location of nvmem.txt

The location pointed there is missing "bindings/" on its path.

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agodocs: Fix more broken references
Mauro Carvalho Chehab [Tue, 8 May 2018 18:14:57 +0000 (15:14 -0300)]
docs: Fix more broken references

As we move stuff around, some doc references are broken. Fix some of
them via this script:
./scripts/documentation-file-ref-check --fix

Manually checked that produced results are valid.

Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoscripts/documentation-file-ref-check: check tools/*/Documentation
Mauro Carvalho Chehab [Thu, 14 Jun 2018 14:06:08 +0000 (11:06 -0300)]
scripts/documentation-file-ref-check: check tools/*/Documentation

Some files, like tools/memory-model/README has references to
a Documentation file that is locale to it. Handle references
that are relative to them too.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoscripts/documentation-file-ref-check: get rid of false-positives
Mauro Carvalho Chehab [Thu, 14 Jun 2018 13:47:29 +0000 (10:47 -0300)]
scripts/documentation-file-ref-check: get rid of false-positives

Now that the number of broken refs are smaller, improve the logic
that gets rid of false-positives.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoscripts/documentation-file-ref-check: hint: dash or underline
Mauro Carvalho Chehab [Thu, 14 Jun 2018 13:14:54 +0000 (10:14 -0300)]
scripts/documentation-file-ref-check: hint: dash or underline

Sometimes, people use dash instead of underline or vice-versa.
Try to autocorrect it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoscripts/documentation-file-ref-check: add a fix logic for DT
Mauro Carvalho Chehab [Thu, 14 Jun 2018 12:36:35 +0000 (09:36 -0300)]
scripts/documentation-file-ref-check: add a fix logic for DT

There are several links broken due to DT file movements. Add
a hint logic to seek for those changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoscripts/documentation-file-ref-check: accept more wildcards at filenames
Mauro Carvalho Chehab [Thu, 14 Jun 2018 10:48:22 +0000 (07:48 -0300)]
scripts/documentation-file-ref-check: accept more wildcards at filenames

at MAINTAINERS, some filename paths use '?' and things like [7,9].
So, accept more wildcards, in order to avoid false-positives.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agoscripts/documentation-file-ref-check: fix help message
Mauro Carvalho Chehab [Thu, 14 Jun 2018 10:11:02 +0000 (07:11 -0300)]
scripts/documentation-file-ref-check: fix help message

The name of the --fix option was renamed, but it was not
changed at the quick help message.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agomedia: max2175: fix location of driver's companion documentation
Mauro Carvalho Chehab [Thu, 14 Jun 2018 10:34:51 +0000 (07:34 -0300)]
media: max2175: fix location of driver's companion documentation

There's a missing ".rst" at the doc's file name.

Acked-by: Ramesh Shanmugasundaram <Ramesh.shanmugasundaram@bp.renesas.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agomedia: v4l: fix broken video4linux docs locations
Mauro Carvalho Chehab [Tue, 8 May 2018 22:41:44 +0000 (19:41 -0300)]
media: v4l: fix broken video4linux docs locations

There are several places pointing to old documentation files:

  Documentation/video4linux/API.html
  Documentation/video4linux/bttv/
  Documentation/video4linux/cx2341x/fw-encoder-api.txt
  Documentation/video4linux/m5602.txt
  Documentation/video4linux/v4l2-framework.txt
  Documentation/video4linux/videobuf
  Documentation/video4linux/Zoran

Make them point to the new location where available, removing
otherwise.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agomedia: dvb: point to the location of the old README.dvb-usb file
Mauro Carvalho Chehab [Tue, 8 May 2018 21:29:30 +0000 (18:29 -0300)]
media: dvb: point to the location of the old README.dvb-usb file

This file got renamed, but the references still point to the
old place.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agomedia: dvb: fix location of get_dvb_firmware script
Mauro Carvalho Chehab [Tue, 8 May 2018 21:10:05 +0000 (18:10 -0300)]
media: dvb: fix location of get_dvb_firmware script

This script was moved out of Documentation/dvb, but the
links weren't updated.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agodocs: Fix some broken references
Mauro Carvalho Chehab [Tue, 8 May 2018 18:14:57 +0000 (15:14 -0300)]
docs: Fix some broken references

As we move stuff around, some doc references are broken. Fix some of
them via this script:
./scripts/documentation-file-ref-check --fix

Manually checked if the produced result is valid, removing a few
false-positives.

Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agodocs: fix broken references with multiple hints
Mauro Carvalho Chehab [Tue, 8 May 2018 21:54:36 +0000 (18:54 -0300)]
docs: fix broken references with multiple hints

The script:
./scripts/documentation-file-ref-check --fix

Gives multiple hints for broken references on some files.
Manually use the one that applies for some files.

Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: James Morris <james.morris@microsoft.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
6 years agonet: stmmac: Run HWIF Quirks after getting HW caps
Jose Abreu [Fri, 15 Jun 2018 15:17:27 +0000 (16:17 +0100)]
net: stmmac: Run HWIF Quirks after getting HW caps

Currently we were running HWIF quirks before getting HW capabilities.
This is not right because some HWIF callbacks depend on HW caps.

Lets save the quirks callback and use it in a later stage.

This fixes Altera socfpga.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Fixes: 5f0456b43140 ("net: stmmac: Implement logic to automatically select HW Interface")
Reported-by: Dinh Nguyen <dinh.linux@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Vitor Soares <soares@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoneighbour: skip NTF_EXT_LEARNED entries during forced gc
Roopa Prabhu [Wed, 13 Jun 2018 04:26:10 +0000 (21:26 -0700)]
neighbour: skip NTF_EXT_LEARNED entries during forced gc

Commit 9ce33e46531d ("neighbour: support for NTF_EXT_LEARNED flag")
added support for NTF_EXT_LEARNED for neighbour entries.
NTF_EXT_LEARNED entries are neigh entries managed by control
plane (eg: Ethernet VPN implementation in FRR routing suite).
Periodic gc already excludes these entries. This patch extends
it to forced gc which the earlier patch missed.

Fixes: 9ce33e46531d ("neighbour: support for NTF_EXT_LEARNED flag")
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agonet: cxgb3: add error handling for sysfs_create_group
Zhouyang Jia [Fri, 15 Jun 2018 03:06:17 +0000 (11:06 +0800)]
net: cxgb3: add error handling for sysfs_create_group

When sysfs_create_group fails, the lack of error-handling code may
cause unexpected results.

This patch adds error-handling code after calling sysfs_create_group.

Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'tls-fixes'
David S. Miller [Fri, 15 Jun 2018 16:14:31 +0000 (09:14 -0700)]
Merge branch 'tls-fixes'

Daniel Borkmann says:

====================
Two tls fixes

First one is syzkaller trigered uaf and second one noticed
while writing test code with tls ulp. For details please see
individual patches.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotls: fix waitall behavior in tls_sw_recvmsg
Daniel Borkmann [Fri, 15 Jun 2018 01:07:46 +0000 (03:07 +0200)]
tls: fix waitall behavior in tls_sw_recvmsg

Current behavior in tls_sw_recvmsg() is to wait for incoming tls
messages and copy up to exactly len bytes of data that the user
provided. This is problematic in the sense that i) if no packet
is currently queued in strparser we keep waiting until one has been
processed and pushed into tls receive layer for tls_wait_data() to
wake up and push the decrypted bits to user space. Given after
tls decryption, we're back at streaming data, use sock_rcvlowat()
hint from tcp socket instead. Retain current behavior with MSG_WAITALL
flag and otherwise use the hint target for breaking the loop and
returning to application. This is done if currently no ctx->recv_pkt
is ready, otherwise continue to process it from our strparser
backlog.

Fixes: c46234ebb4d1 ("tls: RX path for ktls")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agotls: fix use-after-free in tls_push_record
Daniel Borkmann [Fri, 15 Jun 2018 01:07:45 +0000 (03:07 +0200)]
tls: fix use-after-free in tls_push_record

syzkaller managed to trigger a use-after-free in tls like the
following:

  BUG: KASAN: use-after-free in tls_push_record.constprop.15+0x6a2/0x810 [tls]
  Write of size 1 at addr ffff88037aa08000 by task a.out/2317

  CPU: 3 PID: 2317 Comm: a.out Not tainted 4.17.0+ #144
  Hardware name: LENOVO 20FBCTO1WW/20FBCTO1WW, BIOS N1FET47W (1.21 ) 11/28/2016
  Call Trace:
   dump_stack+0x71/0xab
   print_address_description+0x6a/0x280
   kasan_report+0x258/0x380
   ? tls_push_record.constprop.15+0x6a2/0x810 [tls]
   tls_push_record.constprop.15+0x6a2/0x810 [tls]
   tls_sw_push_pending_record+0x2e/0x40 [tls]
   tls_sk_proto_close+0x3fe/0x710 [tls]
   ? tcp_check_oom+0x4c0/0x4c0
   ? tls_write_space+0x260/0x260 [tls]
   ? kmem_cache_free+0x88/0x1f0
   inet_release+0xd6/0x1b0
   __sock_release+0xc0/0x240
   sock_close+0x11/0x20
   __fput+0x22d/0x660
   task_work_run+0x114/0x1a0
   do_exit+0x71a/0x2780
   ? mm_update_next_owner+0x650/0x650
   ? handle_mm_fault+0x2f5/0x5f0
   ? __do_page_fault+0x44f/0xa50
   ? mm_fault_error+0x2d0/0x2d0
   do_group_exit+0xde/0x300
   __x64_sys_exit_group+0x3a/0x50
   do_syscall_64+0x9a/0x300
   ? page_fault+0x8/0x30
   entry_SYSCALL_64_after_hwframe+0x44/0xa9

This happened through fault injection where aead_req allocation in
tls_do_encryption() eventually failed and we returned -ENOMEM from
the function. Turns out that the use-after-free is triggered from
tls_sw_sendmsg() in the second tls_push_record(). The error then
triggers a jump to waiting for memory in sk_stream_wait_memory()
resp. returning immediately in case of MSG_DONTWAIT. What follows is
the trim_both_sgl(sk, orig_size), which drops elements from the sg
list added via tls_sw_sendmsg(). Now the use-after-free gets triggered
when the socket is being closed, where tls_sk_proto_close() callback
is invoked. The tls_complete_pending_work() will figure that there's
a pending closed tls record to be flushed and thus calls into the
tls_push_pending_closed_record() from there. ctx->push_pending_record()
is called from the latter, which is the tls_sw_push_pending_record()
from sw path. This again calls into tls_push_record(). And here the
tls_fill_prepend() will panic since the buffer address has been freed
earlier via trim_both_sgl(). One way to fix it is to move the aead
request allocation out of tls_do_encryption() early into tls_push_record().
This means we don't prep the tls header and advance state to the
TLS_PENDING_CLOSED_RECORD before allocation which could potentially
fail happened. That fixes the issue on my side.

Fixes: 3c4d7559159b ("tls: kernel TLS support")
Reported-by: syzbot+5c74af81c547738e1684@syzkaller.appspotmail.com
Reported-by: syzbot+709f2810a6a05f11d4d3@syzkaller.appspotmail.com
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'l2tp-l2tp_ppp-must-ignore-non-PPP-sessions'
David S. Miller [Fri, 15 Jun 2018 16:12:37 +0000 (09:12 -0700)]
Merge branch 'l2tp-l2tp_ppp-must-ignore-non-PPP-sessions'

Guillaume Nault says:

====================
l2tp: l2tp_ppp must ignore non-PPP sessions

The original L2TP code was written for version 2 of the protocol, which
could only carry PPP sessions. Then L2TPv3 generalised the protocol so that
it could transport different kinds of pseudo-wires. But parts of the
l2tp_ppp module still break in presence of non-PPP sessions.

Assuming L2TPv2 tunnels can only transport PPP sessions is right, but
l2tp_netlink failed to ensure that (fixed in patch 1).
When retrieving a session from an arbitrary tunnel, l2tp_ppp needs to
filter out non-PPP sessions (last occurrence fixed in patch 2).
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agol2tp: filter out non-PPP sessions in pppol2tp_tunnel_ioctl()
Guillaume Nault [Fri, 15 Jun 2018 13:39:19 +0000 (15:39 +0200)]
l2tp: filter out non-PPP sessions in pppol2tp_tunnel_ioctl()

pppol2tp_tunnel_ioctl() can act on an L2TPv3 tunnel, in which case
'session' may be an Ethernet pseudo-wire.

However, pppol2tp_session_ioctl() expects a PPP pseudo-wire, as it
assumes l2tp_session_priv() points to a pppol2tp_session structure. For
an Ethernet pseudo-wire l2tp_session_priv() points to an l2tp_eth_sess
structure instead, making pppol2tp_session_ioctl() access invalid
memory.

Fixes: d9e31d17ceba ("l2tp: Add L2TP ethernet pseudowire support")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agol2tp: reject creation of non-PPP sessions on L2TPv2 tunnels
Guillaume Nault [Fri, 15 Jun 2018 13:39:17 +0000 (15:39 +0200)]
l2tp: reject creation of non-PPP sessions on L2TPv2 tunnels

The /proc/net/pppol2tp handlers (pppol2tp_seq_*()) iterate over all
L2TPv2 tunnels, and rightfully expect that only PPP sessions can be
found there. However, l2tp_netlink accepts creating Ethernet sessions
regardless of the underlying tunnel version.

This confuses pppol2tp_seq_session_show(), which expects that
l2tp_session_priv() returns a pppol2tp_session structure. When the
session is an Ethernet pseudo-wire, a struct l2tp_eth_sess is returned
instead. This leads to invalid memory access when
pppol2tp_session_get_sock() later tries to dereference ps->sk.

Fixes: d9e31d17ceba ("l2tp: Add L2TP ethernet pseudowire support")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agoMerge branch 'mlxsw-IPv6-and-reference-counting-fixes'
David S. Miller [Fri, 15 Jun 2018 16:11:17 +0000 (09:11 -0700)]
Merge branch 'mlxsw-IPv6-and-reference-counting-fixes'

Ido Schimmel says:

====================
mlxsw: IPv6 and reference counting fixes

The first three patches fix a mismatch between the new IPv6 behavior
introduced in commit f34436a43092 ("net/ipv6: Simplify route replace and
appending into multipath route") and mlxsw. The patches allow the driver
to support multipathing in IPv6 overlays with GRE tunnel devices. A
selftest will be submitted when net-next opens.

The last patch fixes a reference count problem of the port_vlan struct.
I plan to simplify the code in net-next, so that reference counting is
not necessary anymore.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: spectrum_switchdev: Fix port_vlan refcounting
Petr Machata [Fri, 15 Jun 2018 13:23:38 +0000 (16:23 +0300)]
mlxsw: spectrum_switchdev: Fix port_vlan refcounting

Switchdev notifications for addition of SWITCHDEV_OBJ_ID_PORT_VLAN are
distributed not only on clean addition, but also when flags on an
existing VLAN are changed. mlxsw_sp_bridge_port_vlan_add() calls
mlxsw_sp_port_vlan_get() to get at the port_vlan in question, which
implicitly references the object. This then leads to discrepancies in
reference counting when the VLAN is removed. spectrum.c warns about the
problem when the module is removed:

[13578.493090] WARNING: CPU: 0 PID: 2454 at drivers/net/ethernet/mellanox/mlxsw/spectrum.c:2973 mlxsw_sp_port_remove+0xfd/0x110 [mlxsw_spectrum]
[...]
[13578.627106] Call Trace:
[13578.629617]  mlxsw_sp_fini+0x2a/0xe0 [mlxsw_spectrum]
[13578.634748]  mlxsw_core_bus_device_unregister+0x3e/0x130 [mlxsw_core]
[13578.641290]  mlxsw_pci_remove+0x13/0x40 [mlxsw_pci]
[13578.646238]  pci_device_remove+0x31/0xb0
[13578.650244]  device_release_driver_internal+0x14f/0x220
[13578.655562]  driver_detach+0x32/0x70
[13578.659183]  bus_remove_driver+0x47/0xa0
[13578.663134]  pci_unregister_driver+0x1e/0x80
[13578.667486]  mlxsw_sp_module_exit+0xc/0x3fa [mlxsw_spectrum]
[13578.673207]  __x64_sys_delete_module+0x13b/0x1e0
[13578.677888]  ? exit_to_usermode_loop+0x78/0x80
[13578.682374]  do_syscall_64+0x39/0xe0
[13578.685976]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fix by putting the port_vlan when mlxsw_sp_port_vlan_bridge_join()
determines it's a flag-only change.

Fixes: b3529af6bb0d ("spectrum: Reference count VLAN entries")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
6 years agomlxsw: spectrum_router: Align with new route replace logic
Ido Schimmel [Fri, 15 Jun 2018 13:23:37 +0000 (16:23 +0300)]
mlxsw: spectrum_router: Align with new route replace logic

Commit f34436a43092 ("net/ipv6: Simplify route replace and appending
into multipath route") changed the IPv6 route replace logic so that the
first matching route (i.e., same metric) is replaced.

Have mlxsw replace the first matching route as well.

Fixes: f34436a43092 ("net/ipv6: Simplify route replace and appending into multipath route")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>