- Don't call BATMAN_V experimental in Kconfig anymore, by Sven Eckelmann
- Enable DAT by default at compile time, by Antonio Quartulli
- Remove obsolete default n in Kconfig, by Sven Eckelmann
- Fix checkpatch spelling errors, by Sven Eckelmann
- Unify header guards style, by Sven Eckelmann
- Consolidate batadv_purge_orig functions, by Sven Eckelmann
- Replace type define with proper typedef, by Sven Eckelmann
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Merge tag 'batadv-next-for-davem-20180717' of git://git.open-mesh.org/linux-merge
Simon Wunderlich says:
====================
This feature/cleanup patchset includes the following patches:
- Don't call BATMAN_V experimental in Kconfig anymore, by Sven Eckelmann
- Enable DAT by default at compile time, by Antonio Quartulli
- Remove obsolete default n in Kconfig, by Sven Eckelmann
- Fix checkpatch spelling errors, by Sven Eckelmann
- Unify header guards style, by Sven Eckelmann
- Consolidate batadv_purge_orig functions, by Sven Eckelmann
- Replace type define with proper typedef, by Sven Eckelmann
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit b6fb0df12d ("RDS/IB: Make ib_recv_refill return void") did
not change the comment accordingly.
Fixes: b6fb0df12d ("RDS/IB: Make ib_recv_refill return void")
Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.ccom>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/dsa/rtl8366.c: In function ‘rtl8366_reset_vlan’:
drivers/net/dsa/rtl8366.c:234:25: warning: unused variable ‘vlan4k’ [-Wunused-variable]
Signed-off-by: David S. Miller <davem@davemloft.net>
Niklas Söderlund says:
====================
ravb: small sparse fixes
This are fixes that have bugged me whenever I run sparse to check my own
changes to the driver. It's based on the latest net-next tree and tested
on M3-N.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The wrong helper is used to swap the bytes when adding the lower bits of
the TX descriptors tag field in the shared ds_tagl variable. The
variable contains the DS[11:0] field and then the TAG[3:0] bits.
The mistake was highlighted by the sparse warning:
ravb_main.c:1622:31: left side has type restricted __le16
ravb_main.c:1622:31: right side has type unsigned short
ravb_main.c:1622:31: warning: invalid assignment: |=
ravb_main.c:1622:34: warning: cast to restricted __le16
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This fixes sparse warning:
ravb_main.c:1257 ravb_get_strings() error: memcpy() '*ravb_gstrings_stats' too small (32 vs 960)
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Inside a loop in ravb_get_ethtool_stats() a variable 'stats' is declared
resulting in the argument also named 'stats' to be shadowed. Fix this
warning by renaming the unused argument 'stats' to 'estats'.
This fixes the sparse warning:
ravb_main.c:1225:36: originally declared here
ravb_main.c:1233:41: warning: symbol 'stats' shadows an earlier one
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds the Ethernet and Realtek switch device to the
D-Link DIR-685 Gemini-based device.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds a driver core for the Realtek SMI chips and a
subdriver for the RTL8366RB. I just added this chip simply
because it is all I can test.
The code is a massaged variant of the code that has been
sitting out-of-tree in OpenWRT for years in the absence of
a proper switch subsystem. This creates a DSA driver for it.
I have tried to credit the original authors wherever
possible.
The main changes I've done from the OpenWRT code:
- Added an IRQ chip inside the RTL8366RB switch to demux and
handle the line state IRQs.
- Distributed the phy handling out to the PHY driver.
- Added some RTL8366RB code that was missing in the driver at
the time, such as setting up "green ethernet" with a funny
jam table and forcing MAC5 (the CPU port) into 1 GBit.
- Select jam table and add the default jam table from the
vendor driver, also for ASIC "version 0" if need be.
- Do not store jam tables in the device tree, store them
in the driver.
- Pick in the "initvals" jam tables from OpenWRT's driver
and make those get selected per compatible for the
whole system. It's apparently about electrical settings
for this system and whatnot, not really configuration
from device tree.
- Implemented LED control: beware of bugs because there are
no LEDs on the device I am using!
We do not implement custom DSA tags. This is explained in
a comment in the driver as well: this "tagging protocol" is
not simply a few extra bytes tagged on to the ethernet
frame as DSA is used to. Instead, enabling the CPU tags
will make the switch start talking Realtek RRCP internally.
For example a simple ping will make this kind of packets
appear inside the switch:
0000 ff ff ff ff ff ff bc ae c5 6b a8 3d 88 99 a2 00
0010 08 06 00 01 08 00 06 04 00 01 bc ae c5 6b a8 3d
0020 a9 fe 01 01 00 00 00 00 00 00 a9 fe 01 02 00 00
0030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
As you can see a custom "8899" tagged packet using the
protocol 0xa2. Norm RRCP appears to always have this
protocol set to 0x01 according to OpenRRCP. You can also
see that this is not a ping packet at all, instead the
switch is starting to talk network management issues
with the CPU port.
So for now custom "tagging" is disabled.
This was tested on the D-Link DIR-685 with initramfs and
OpenWRT userspaces and works fine on all the LAN ports
(lan0 .. lan3). The WAN port is yet not working.
Cc: Antti Seppälä <a.seppala@gmail.com>
Cc: Roman Yeryomin <roman@advem.lv>
Cc: Colin Leitner <colin.leitner@googlemail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The Realtek SMI family is a set of DSA chips that provide
switching in routers. This binding just follows the pattern
set by other switches but with the introduction of an embedded
irqchip to demux and handle the interrupts fired by the single
line from the chip.
This interrupt construction is similar to how we handle
interrupt controllers inside PCI bridges etc.
Cc: Antti Seppälä <a.seppala@gmail.com>
Cc: Roman Yeryomin <roman@advem.lv>
Cc: Colin Leitner <colin.leitner@googlemail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The RTL8366RB is an ASIC with five internal PHYs for
LAN0..LAN3 and WAN. The PHYs are spawn off the main
device so they can be handled in a distributed manner
by the Realtek PHY driver. All that is really needed
is the power save feature enablement and letting the
PHY driver core pick up the IRQ from the switch chip.
Cc: Antti Seppälä <a.seppala@gmail.com>
Cc: Roman Yeryomin <roman@advem.lv>
Cc: Colin Leitner <colin.leitner@googlemail.com>
Cc: Gabor Juhos <juhosg@openwrt.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The removed code would be called in two situations:
1. interface is brought up never or >10s after driver load
2. after close()
Case 1 we can handle cleaner by ensuring chip is powered down when
leaving probe(). open() callback will power up the chip.
In case 2 we call rtl_pll_power_down() twice currently, from the
close() callback and 10s later when entering runtime-suspend.
This is avoided by this patch.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn says:
====================
HWMON support for SFP modules
This patchset adds HWMON support to SFP modules. The two patches add
some attributes for temperature and power sensors which are currently
missing from the hwmon core. The third patch adds a helper for
filtering out characters in hwmon names which are invalid. The last
patch then extends the core SFP code to export the sensors found in
SFP modules.
This code has been tested with two SFP modules:
module OEM SFP-7000-85 rev 11.0 sn M1512220075 dc 160221
module FINISAR CORP. FTLF8524E2GNL rev A sn PW40MNN dc 160725
The anonymous module uses external calibration, while the FINISAR uses
internal calibration. Thus both code paths have been tested.
Due to the cross subsystem nature of these patches, as discussed with
the RFC, it is hoped Guenter Roeck will ACK the patches, and then Dave
Miller will merge them all via net-next.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
SFP modules can contain a number of sensors. The EEPROM also contains
recommended alarm and critical values for each sensor, and indications
of if these have been exceeded. Export this information via
HWMON. Currently temperature, VCC, bias current, transmit power, and
possibly receiver power is supported.
The sensors in the modules can either return calibrate or uncalibrated
values. Uncalibrated values need to be manipulated, using coefficients
provided in the SFP EEPROM. Uncalibrated receive power values require
floating point maths in order to calibrate them. Performing this in
the kernel is hard. So if the SFP module indicates it uses
uncalibrated values, RX power is not made available.
With this hwmon device, it is possible to view the sensor values using
lm-sensors programs:
in0: +3.29 V (crit min = +2.90 V, min = +3.00 V)
(max = +3.60 V, crit max = +3.70 V)
temp1: +33.0°C (low = -5.0°C, high = +80.0°C)
(crit low = -10.0°C, crit = +85.0°C)
power1: 1000.00 nW (max = 794.00 uW, min = 50.00 uW) ALARM (LCRIT)
(lcrit = 40.00 uW, crit = 1000.00 uW)
curr1: +0.00 A (crit min = +0.00 A, min = +0.00 A) ALARM (LCRIT, MIN)
(max = +0.01 A, crit max = +0.01 A)
The scaling sensors performs on the bias current is not particularly
good. The raw values are more useful:
curr1:
curr1_input: 0.000
curr1_min: 0.002
curr1_max: 0.010
curr1_lcrit: 0.000
curr1_crit: 0.011
curr1_min_alarm: 1.000
curr1_max_alarm: 0.000
curr1_lcrit_alarm: 1.000
curr1_crit_alarm: 0.000
In order to keep the I2C overhead to a minimum, the constant values,
such as limits and calibration coefficients are read once at module
insertion time. Thus only reading *_input and *_alarm properties
requires i2c read operations.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
HWMON device names are not allowed to contain "-* \t\n". Add a helper
which will return true if passed an invalid character. It can be used
to massage a string into a hwmon compatible name by replacing invalid
characters with '_'.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some sensors support reporting minimal and lower critical power, as
well as alarms when these thresholds are reached. Add support for
these attributes to the hwmon core.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The enum hwmon_temp_lcrit_alarm exists, but the BIT definition is
missing.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit says:
====================
r8169: add phylib support
Now that all the basic refactoring has been done we can add phylib
support. This patch series was successfully tested on:
RTL8168h
RTL8168evl
RTL8169sb
Changes in v2:
- return error in mdio ops if phyaddr > 0
- advertise pause modes
- added reviewed-by for several patches
Changes in v3:
- return ENODEV for unused phy addresses in mdio ops
- remove unneeded PHY suspend in patch 2
- use recently added phy_speed_down and phy_speed_up in patch 7
- other minor changes based on review comments
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of accessing the PHYstatus register we can use the information
phylib stores in the phy_device structure.
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>
The only remaining usage of the struct mii_if_info member is to store the
information whether the chip is GMII-capable. So we can replace it with
a simple flag.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
We can remove rtl8169_set_speed_xmii() now that phylib handles all this.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use new phylib functions phy_speed_down() and phy_speed_up().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Switch to using phy_mii_ioctl().
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>
Switch to using phy_ethtool_nway_reset().
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>
Use phy_ethtool_(g|s)et_link_ksettings() for the respective ethtool_ops
callbacks.
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>
Use genphy_soft_reset() instead of open-coding a PHY soft reset. We have
to do an explicit PHY soft reset because some chips use the genphy driver
which uses a no-op as soft_reset callback.
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>
Use phy_resume() / phy_suspend() instead of open coding this functionality.
The chip version specific differences are handled by the respective PHY
drivers.
The call to r8168_phy_power_down() in r8168_pll_power_down() can be
removed because phylib takes care now. The relevant scenarios are:
- rtl8169_close(): phy_disconnect() powers down PHY
- suspend: mdio_bus_phy_suspend() takes care
- runtime-suspend: WoL is active, don't suspend PHY
- rtl_shutdown(): no need to power down PHY
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add basic phylib support to r8169. All now unneeded old PHY handling code
will be removed in subsequent patches.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
FIELD_SIZEOF() is in bytes, but we want bits.
Fixes: d9f37d01e2 ("net: convert gro_count to bitmask")
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In diffserv mode, CAKE stores tins in a different order internally than
the logical order exposed to userspace. The order remapping was missing
in the handling of 'tc filter' priority mappings through skb->priority,
resulting in bulk and best effort mappings being reversed relative to
how they are displayed.
Fix this by adding the missing mapping when reading skb->priority.
Fixes: 83f8fd69af ("sch_cake: Add DiffServ handling")
Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Expose counters ASIC has in the group of RFC 2819 counters that count
number of packets within specific size range.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When configuring SLI_PKTn_OUTPUT_CONTROL, VF driver was assuming that IPTR
mode was disabled by reset, which was not true. Since DPDK driver had
set IPTR mode previously, the VF driver (which uses buf-ptr-only mode) was
not properly handling DROQ packets (i.e. it saw zero-length packets).
This represented an invalid hardware configuration which the driver could
not handle.
Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Octeon Ethernet drivers work perfectly without PCI.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The tag type in the frame extraction header is only a bit wide. There's
no need to use GENMASK when retrieving the information. This patch
simplify the code by dropping GENMASK and using BIT instead.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We were returning DUPLEX_UNKNOWN in get_link_ksettings() when
the link was down. Unfortunately, this causes a problem when
"ethtool -s autoneg on" is issued for a link which is down because
the ethtool code first reads the settings and then reapplies them
with only the changes provided on the command line. Which results
in us diving into set_link_ksettings() with DUPLEX_UNKNOWN which is
not DUPLEX_FULL, so set_link_ksettings() throws an -EINVAL error.
do not return DUPLEX_UNKNOWN to fix the issue.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
gro_hash size is 192 bytes, and uses 3 cache lines, if there is few
flows, gro_hash may be not fully used, so it is unnecessary to iterate
all gro_hash in napi_gro_flush(), to occupy unnecessary cacheline.
convert gro_count to a bitmask, and rename it as gro_bitmask, each bit
represents a element of gro_hash, only flush a gro_hash element if the
related bit is set, to speed up napi_gro_flush().
and update gro_bitmask only if it will be changed, to reduce cache
update
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Cc: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hwrm_dbg_resp_addr and hwrm_dbg_resp_dma_addr are never used
and can be removed.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the existing %pad printk format to print dma_addr_t values.
This avoids the following warnings when compiling on the parisc platform:
warning: format '%llx' expects argument of type 'long long unsigned int', but argument 2 has type 'dma_addr_t {aka unsigned int}' [-Wformat=]
Signed-off-by: Helge Deller <deller@gmx.de>
Acked-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add missing entry for RTL8211C to mdio_device_id table.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Fixes: cf87915cb9 ("net: phy: realtek: add support for RTL8211C")
Signed-off-by: David S. Miller <davem@davemloft.net>
Make use of the swap macro and remove unnecessary variable *temp*.
This makes the code easier to read and maintain. Also, slightly
refactor some code due to the removal of *temp*.
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit says:
====================
net: phy: add functionality to speed down PHY when waiting for WoL packet
Some network drivers include functionality to speed down the PHY when
suspending and just waiting for a WoL packet because this saves energy.
This patch is based on our recent discussion about factoring out this
functionality to phylib. First user will be the r8169 driver.
v2:
- add warning comment to phy_speed_down regarding usage of sync = false
- remove sync parameter from phy_speed_up
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Some network drivers include functionality to speed down the PHY when
suspending and just waiting for a WoL packet because this saves energy.
This functionality is quite generic, therefore let's factor it out to
phylib.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This functionality will also be needed in subsequent patches of this
series, therefore factor it out to a helper.
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>
Add selftests for tls socket. Tests various iov and message options,
poll blocking and nonblocking behavior, partial message sends / receives,
and control message data. Tests should pass regardless of if TLS
is enabled in the kernel or not, and print a warning message if not.
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tobin C. Harding says:
====================
docs: Fix failover build warnings
This is my first patch set to net-next. Please shout loud and clear if
I've botched anything.
Recently failover and net_failover modules were added to the mainline.
Documentation was included in rst format but they were not added to the
toctree in `networking/index.rst`. Also building docs for net_failover
is currently emitting a few warnings.
Patch 1 adds failover and net_failover to the index toctree
Patch 2 fixes the build warnings for net_failover
I haven't been super active on netdev list so if there is some reason I
missed why these files are not in the index please do say so.
Has there been any discussion on preferred order for the toctree index
list? I just added them to the bottom of the list.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently building the net_failover docs causes a bunch of warnings to
be emitted. These warnings are all related to indentation and correctly
highlight missing '::' (for code sections). It looks, from other rst
files in Documentation, that the first column should be indented 2
spaces.
Add '::' before code snippets and indent all snippets uniformly starting
with 2 spaces.
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently we have rst format docs for the failover and net_failover
modules however these docs are not linked to within the index.
Add `failover` and `net_failover` to the networking documentation index.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
