Commit Graph

86074 Commits

Author SHA1 Message Date
Alexandru Ardelean
49cc4c7db4 net: phy: adin: hook genphy_{suspend, resume} into the driver
The chip supports standard suspend/resume via BMCR reg.
Hook these functions into the `adin` driver.

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-16 11:56:25 -07:00
Alexandru Ardelean
9c1029818c net: phy: adin: add support for Analog Devices PHYs
This change adds support for Analog Devices Industrial Ethernet PHYs.
Particularly the PHYs this driver adds support for:
 * ADIN1200 - Robust, Industrial, Low Power 10/100 Ethernet PHY
 * ADIN1300 - Robust, Industrial, Low Latency 10/100/1000 Gigabit
   Ethernet PHY

The 2 chips are register compatible with one another. The main difference
being that ADIN1200 doesn't operate in gigabit mode.

The chips can be operated by the Generic PHY driver as well via the
standard IEEE PHY registers (0x0000 - 0x000F) which are supported by the
kernel as well. This assumes that configuration of the PHY has been done
completely in HW, according to spec.

Configuration can also be done via registers, which will be supported by
this driver.

Datasheets:
  https://www.analog.com/media/en/technical-documentation/data-sheets/ADIN1300.pdf
  https://www.analog.com/media/en/technical-documentation/data-sheets/ADIN1200.pdf

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-16 11:56:25 -07:00
Antoine Tenart
4e3b0468e6 net: mscc: PTP Hardware Clock (PHC) support
This patch adds support for PTP Hardware Clock (PHC) to the Ocelot
switch for both PTP 1-step and 2-step modes.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 16:31:12 -07:00
Antoine Tenart
1f0239de58 net: mscc: remove the frame_info cpuq member
In struct frame_info, the cpuq member is never used. This cosmetic patch
removes it from the structure, and from the parsing of the frame header
as it's only set but never used.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 16:31:12 -07:00
Antoine Tenart
d8c964dcca net: mscc: improve the frame header parsing readability
This cosmetic patch improves the frame header parsing readability by
introducing a new macro to access and mask its fields.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 16:31:11 -07:00
Antoine Tenart
45bce1719c net: mscc: describe the PTP register range
This patch adds support for using the PTP register range, and adds a
description of its registers. This bank is used when configuring PTP.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 16:31:11 -07:00
Sudarsana Reddy Kalluru
0dabbe1bb3 qed: Add driver API for flashing the config attributes.
The patch adds driver interface for reading the config attributes from user
provided buffer, and updates these values on nvm config flash partition.

This is basically an expansion of our existing ethtool -f implementation.
The management FW has exposed an additional method of configuring some of
the nvram options, and this makes use of that. This implementation will
come into use when newer FW files which contain configuration directives
employing this API will be provided to ethtool -f.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 12:54:45 -07:00
Sudarsana Reddy Kalluru
38eabdf024 qed: Add API for configuring NVM attributes.
The patch adds API for configuring the NVM config attributes using
Management FW (MFW) interfaces.

Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 12:54:44 -07:00
David S. Miller
8714652fcd linux-can-next-for-5.4-20190814
-----BEGIN PGP SIGNATURE-----
 
 iQFHBAABCgAxFiEEmvEkXzgOfc881GuFWsYho5HknSAFAl1TpDwTHG1rbEBwZW5n
 dXRyb25peC5kZQAKCRBaxiGjkeSdIMwYB/49sQtE+obVwAOGcXogemkN5+Gj/KTo
 KzF0CLYRjVOz2FViGVJL9HQ5QZwy1IxTycIUV2kKnrlI6s0Z17z3G0lV2+J4scuy
 O+wVn36QzQHdP3Uj8kGmNQ1v6BliePM8bvm4sHtXzb1diW+qNg/0LmNN4brjPWka
 kfvFjS2IdXa7BblT2aiAZj2V+iSQEpy5NieVwcBti0E2AFb+W3qEa8Lg4QORy3Qi
 MAHg0QSUHZp0+joXRQiott4WttfuQ17OQFuxzsQ7bQCQhBQWYUmg14Hm/LP4V3g2
 9algzS6g3Qapdo7KEJrCSViblzHVD+yL3BemfahNUyK4F8zGkPq48Kp5
 =MqG7
 -----END PGP SIGNATURE-----

Merge tag 'linux-can-next-for-5.4-20190814' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2019-08-14

this is a pull request for net-next/master consisting of 41 patches.

The first two patches are for the kvaser_pciefd driver: Christer Beskow
removes unnecessary code in the kvaser_pciefd_pwm_stop() function,
YueHaibing removes the unused including of <linux/version.h>.

In the next patch YueHaibing also removes the unused including of
<linux/version.h> in the f81601 driver.

In the ti_hecc driver the next 6 patches are by me and fix checkpatch
warnings. YueHaibing's patch removes an unused variable in the
ti_hecc_mailbox_read() function.

The next 6 patches all target the xilinx_can driver. Anssi Hannula's
patch fixes a chip start failure with an invalid bus. The patch by
Venkatesh Yadav Abbarapu skips an error message in case of a deferred
probe. The 3 patches by Appana Durga Kedareswara rao fix the RX and TX
path for CAN-FD frames. Srinivas Neeli's patch fixes the bit timing
calculations for CAN-FD.

The next 12 patches are by me and several checkpatch warnings in the
af_can, raw and bcm components.

Thomas Gleixner provides a patch for the bcm, which switches the timer
to HRTIMER_MODE_SOFT and removes the hrtimer_tasklet.

Then 6 more patches by me for the gw component, which fix checkpatch
warnings, followed by 2 patches by Oliver Hartkopp to add CAN-FD
support.

The vcan driver gets 3 patches by me, fixing checkpatch warnings.

And finally a patch by Andre Hartmann to fix typos in CAN's netlink
header.
====================
2019-08-15 12:43:22 -07:00
Jiri Pirko
4418f862d6 netdevsim: implement support for devlink region and snapshots
Implement dummy region of size 32K and allow user to create snapshots
or random data using debugfs file trigger.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 12:02:44 -07:00
Heiner Kallweit
b6cef26fb9 r8169: sync EEE handling for RTL8168h with vendor driver
Sync EEE init for RTL8168h with vendor driver and add two writes to
vendor-specific registers.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 11:49:43 -07:00
Heiner Kallweit
2e779ddb56 r8169: use the generic EEE management functions
Now that the Realtek PHY driver maps the vendor-specific EEE registers
to the standard MMD registers, we can remove all special handling and
use the generic functions phy_ethtool_get/set_eee.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 11:48:30 -07:00
Heiner Kallweit
5b3f13950c net: phy: realtek: add support for EEE registers on integrated PHY's
EEE-related registers on newer integrated PHY's have the standard
layout, but are accessible not via MMD but via vendor-specific
registers. Emulating the standard MMD registers allows to use the
generic functions for EEE control.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 11:48:30 -07:00
Heiner Kallweit
2441ba4806 net: phy: swphy: emulate register MII_ESTATUS
When the genphy driver binds to a swphy it will call
genphy_read_abilites that will try to read MII_ESTATUS if BMSR_ESTATEN
is set in MII_BMSR. So far this would read the default value 0xffff
and 1000FD and 1000HD are reported as supported just by chance.
Better add explicit support for emulating MII_ESTATUS.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 11:43:48 -07:00
Heiner Kallweit
916e571eba net: phy: read MII_CTRL1000 in genphy_read_status only if needed
Value of MII_CTRL1000 is needed only if LPA_1000MSFAIL is set.
Therefore move reading this register.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-15 11:41:49 -07:00
Thomas Gleixner
ecb9f80db2 net/mvpp2: Replace tasklet with softirq hrtimer
The tx_done_tasklet tasklet is used in invoke the hrtimer
(mvpp2_hr_timer_cb) in softirq context. This can be also achieved without
the tasklet but with HRTIMER_MODE_SOFT as hrtimer mode.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-14 20:02:39 -07:00
Heiner Kallweit
5181b473d6 net: phy: realtek: add NBase-T PHY auto-detection
Realtek provided information on how the new NIC-integrated PHY's
expose whether they support 2.5G/5G/10G. This allows to automatically
differentiate 1Gbps and 2.5Gbps PHY's, and therefore allows to
remove the fake PHY ID mechanism for RTL8125.
So far RTL8125 supports 2.5Gbps only, but register layout for faster
modes has been defined already, so let's use this information to be
future-proof.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-14 13:26:08 -04:00
Heiner Kallweit
4773f9bdb4 r8169: fix sporadic transmit timeout issue
Holger reported sporadic transmit timeouts and it turned out that one
path misses ringing the doorbell. Fix was suggested by Eric.

Fixes: ef14358546 ("r8169: make use of xmit_more")
Suggested-by: Eric Dumazet <edumazet@google.com>
Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-14 12:53:40 -04:00
Hayes Wang
e4a5017ac5 r8152: change rx_copybreak and rx_pending through ethtool
Let the rx_copybreak and rx_pending could be modified by
ethtool.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 18:12:09 -07:00
Hayes Wang
47922fcde5 r8152: support skb_add_rx_frag
Use skb_add_rx_frag() to reduce the memory copy for rx data.

Use a new list of rx_used to store the rx buffer which couldn't be
reused yet.

Besides, the total number of rx buffer may be increased or decreased
dynamically. And it is limited by RTL8152_MAX_RX_AGG.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 18:12:08 -07:00
Hayes Wang
d55d70894c r8152: use alloc_pages for rx buffer
Replace kmalloc_node() with alloc_pages() for rx buffer.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 18:12:08 -07:00
Hayes Wang
252df8b866 r8152: replace array with linking list for rx information
The original method uses an array to store the rx information. The
new one uses a list to link each rx structure. Then, it is possible
to increase/decrease the number of rx structure dynamically.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 18:12:08 -07:00
Hayes Wang
ec5791c202 r8152: separate the rx buffer size
The different chips may accept different rx buffer sizes. The RTL8152
supports 16K bytes, and RTL8153 support 32K bytes.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 18:12:08 -07:00
Heiner Kallweit
65b27995a4 net: phy: let phy_speed_down/up support speeds >1Gbps
So far phy_speed_down/up can be used up to 1Gbps only. Remove this
restriction by using new helper __phy_speed_down. New member adv_old
in struct phy_device is used by phy_speed_up to restore the advertised
modes before calling phy_speed_down. Don't simply advertise what is
supported because a user may have intentionally removed modes from
advertisement.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 17:14:06 -07:00
Heiner Kallweit
331c56ac73 net: phy: add phy_speed_down_core and phy_resolve_min_speed
phy_speed_down_core provides most of the functionality for
phy_speed_down. It makes use of new helper phy_resolve_min_speed that is
based on the sorting of the settings[] array. In certain cases it may be
helpful to be able to exclude legacy half duplex modes, therefore
prepare phy_resolve_min_speed() for it.

v2:
- rename __phy_speed_down to phy_speed_down_core

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 17:14:06 -07:00
Heiner Kallweit
7b261e0ef5 net: phy: add __set_linkmode_max_speed
We will need the functionality of __set_linkmode_max_speed also for
linkmode bitmaps other than phydev->supported. Therefore split it.

v2:
- remove unused parameter from __set_linkmode_max_speed

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 17:14:06 -07:00
YueHaibing
a9a9676016 net: hns3: Make hclge_func_reset_sync_vf static
Fix sparse warning:

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c:3190:5:
 warning: symbol 'hclge_func_reset_sync_vf' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-08-13 16:18:12 -07:00
Marc Kleine-Budde
e83e416cdf can: vcan: introduce pr_fmt and make use of it
This patch introduces pr_fmt and makes use of it, also it converts a
printk() to pr_info().

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 17:32:21 +02:00
Marc Kleine-Budde
4248f5e02f can: vcan: remove unnecessary blank lines
This patch removes unnecessary blank lines, so that checkpatch doesn't
complain anymore.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 17:32:21 +02:00
Marc Kleine-Budde
d569de8149 can: vcan: convert block comments to network style comments
This patch converts all block comments to network subsystem style block
comments.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 17:32:21 +02:00
Srinivas Neeli
3e994ff28f can: xilinx_can: xcan_set_bittiming(): fix the data phase btr1 calculation
While calculating bitrate for the data phase, the driver is using phase
segment 1 of the arbitration phase instead of the data phase.

Fixes: c223da6 ("can: xilinx_can: Add support for CANFD FD frames")
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Acked-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 17:32:19 +02:00
Appana Durga Kedareswara rao
9d06bcb9aa can: xilinx_can: xcan_rx_fifo_get_next_frame(): fix FSR register FL and RI mask values for canfd 2.0
For CANFD 2.0 IP configuration existing driver is using incorrect mask
values for FSR register FL and RI fields.

Fixes: c223da6 ("can: xilinx_can: Add support for CANFD FD frames")
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Acked-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 17:32:19 +02:00
Appana Durga Kedareswara rao
e6997dd268 can: xilinx_can: fix the data update logic for CANFD FD frames
commit c223da6893 ("can: xilinx_can: Add support for CANFD FD frames")
is writing data to a wrong offset for FD frames.

This patch fixes this issue.

Fixes: c223da6 ("can: xilinx_can: Add support for CANFD FD frames")
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Reviewed-by: Shubhrajyoti Datta <Shubhrajyoti.datta@xilinx.com>
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 17:31:26 +02:00
Appana Durga Kedareswara rao
93bbd6c5ee can: xilinx_can: xcanfd_rx(): fix FSR register handling in the RX path
After commit c223da6893 ("can: xilinx_can: Add support for CANFD FD
frames") the driver is updating the FSR IRI index multiple times (i.e in
xcanfd_rx() and xcan_rx_fifo_get_next_frame()), It should be updated
once per RX packet. This patch fixes this issue, also this patch removes
the unnecessary fsr register checks in xcanfd_rx() API.

Fixes: c223da6 ("can: xilinx_can: Add support for CANFD FD frames")
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Reviewed-by: Shubhrajyoti Datta <Shubhrajyoti.datta@xilinx.com>
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:44:53 +02:00
Venkatesh Yadav Abbarapu
6b0d35891c can: xilinx_can: xcan_probe(): skip error message on deferred probe
When can clock is provided from the clock wizard, clock wizard driver
may not be available when can driver probes resulting to the error
message "Device clock not found error".

As this error message is not very userful to the end user, skip printing
it in the case of deferred probe.

Fixes: b1201e44 ("can: xilinx CAN controller support")
Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:43:22 +02:00
Anssi Hannula
3486cc40cc can: xilinx_can: xcan_chip_start(): fix failure with invalid bus
Currently the xilinx_can xcan_chip_start() function, called from
.ndo_open() and via CAN_MODE_START (bus-off restart), waits for the SR
register to show the wanted operating state, with a 1 sec timeout.

However, that register bit will only be set once the HW has observed 11
consecutive recessive bits (BusIdle) on the bus.

If the bus will not see the 11 bits (e.g. it is stuck dominant), the
function will timeout and return an error. If this was done as part of a
scheduled restart from bus-off, the interface will stay in bus-off state
forever even if the bus recovers later.

According to M_CAN and FLEXCAN documentation they also wait for 11
consecutive recessive bits, but their drivers do not seem to wait for
that.

To make the behavior consistent, modify xilinx_can to also not wait for
the synchronization to complete.

The only way for users to know for sure that the bus has been joined
successfully is to see successfully received or transmitted frames. That
does not seem optimal, but it is consistent with other drivers and we
should have a properly working restart-ms with xilinx_can.

Tested on ZynqMP with Xilinx CAN-FD 1.0.

Fixes: b1201e44f5 ("can: xilinx CAN controller support")
Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi>
Tested-by: Appana Durga Kedareswara Rao <appana.durga.rao@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:42:05 +02:00
YueHaibing
7123e1c7ea can: ti_hecc: ti_hecc_mailbox_read(): remove set but not used variable 'mbx_mask'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/can/ti_hecc.c: In function 'ti_hecc_mailbox_read':
drivers/net/can/ti_hecc.c:533:12: warning:
 variable 'mbx_mask' set but not used [-Wunused-but-set-variable]

It is never used so can be removed.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Jeroen Hofstee <jhofstee@victronenergy.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:40:29 +02:00
Marc Kleine-Budde
babfcda6ef can: ti_hecc: ti_hecc_mailbox_read(): add blank lines to improve readability
This patch adds two blank lines in ti_hecc_mailbox_read() to improve the
readability of the function.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:04 +02:00
Marc Kleine-Budde
c71400cec4 can: ti_hecc: ti_hecc_start(): avoid multiple assignments
This patch changes the multiple assignments of HECC_TX_MASK in
ti_hecc_start() into two single ones.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:04 +02:00
Marc Kleine-Budde
dfa9352dbe can: ti_hecc: fix print formating strings
This patch fixes the print format strings in the driver.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:04 +02:00
Marc Kleine-Budde
ab3a78f659 can: ti_hecc: avoid long lines
This patch fixes long lines in the driver.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:04 +02:00
Marc Kleine-Budde
d5f1a984ed can: ti_hecc: fix indention
This patch fixes the indention in the driver.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:03 +02:00
Marc Kleine-Budde
99a3d7c122 can: ti_hecc: convert block comments to network style comments
This patch converts all block comments to network subsystem style block
comments.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:03 +02:00
YueHaibing
175a60b73b can: sja1000: f81601: remove unused including <linux/version.h>
Remove including <linux/version.h> that don't need it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:03 +02:00
YueHaibing
5549369cfd can: kvaser_pciefd: Remove unused including <linux/version.h>
Remove including <linux/version.h> that don't need it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:37:03 +02:00
Christer Beskow
1910cd8853 can: kvaser_pciefd: kvaser_pciefd_pwm_stop(): remove unnecessary code when setting pwm duty cycle to zero
To set the duty cycle to zero (i.e. pwm_stop), the trigger value shall
be equal to the top value.

This is achieved by reading the value of the top bit field from the pwm
register and then writing back this value to the trigger and top bit
fields.

Addresses-Coverity: ("Logically dead code")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Christer Beskow <chbe@kvaser.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2019-08-13 16:36:52 +02:00
Greg Kroah-Hartman
53f6f39178 caif: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Richard Fontana <rfontana@redhat.com>
Cc: Steve Winslow <swinslow@gmail.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-11 21:31:25 -07:00
Greg Kroah-Hartman
6f20a697e4 xen-netback: no need to check return value of debugfs_create functions
When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Wei Liu <wei.liu@kernel.org>
Cc: Paul Durrant <paul.durrant@citrix.com>
Cc: xen-devel@lists.xenproject.org
Cc: netdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Wei Liu <wei.liu@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-11 21:30:06 -07:00
Vivien Didelot
eede236112 net: dsa: mv88e6xxx: add delay in direct SMI wait
The mv88e6xxx_smi_direct_wait routine is used to wait on indirect
registers access. It is of no exception and must delay between read
attempts, like other wait routines.

Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-11 21:27:15 -07:00
Vivien Didelot
1c6463b6fc net: dsa: mv88e6xxx: fix SMI bit checking
The current mv88e6xxx_smi_direct_wait function is only used to check
the 16th bit of the (16-bit) SMI Command register. But the bit shift
operation is not enough if we eventually use this function to check
other bits, thus replace it with a mask.

Fixes: e7ba0fad9c ("net: dsa: mv88e6xxx: refine SMI support")
Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-11 21:27:15 -07:00