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If a skb in transmit path does not have sufficient headroom to add
the map header, the skb is not sent out and is never freed.
Fixes: ceed73a2cf4a ("drivers: net: ethernet: qualcomm: rmnet: Initial implementation")
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The current dsa_upstream_port() helper still assumes a unique CPU port
in the whole switch fabric. This is becoming wrong, as every port in the
fabric has its dedicated CPU port, thus every port has an upstream port.
Add a port argument to the dsa_upstream_port() helper and fetch its CPU
port instead of the deprecated unique fabric CPU port. A CPU or unused
port has no dedicated CPU port, so return itself in this case.
At the same time, change the return value from u8 to unsigned int since
there is no need to limit the size here.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move the setup of the global upstream port within the
mv88e6xxx_setup_upstream_port function.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a helper function to setup the upstream port of a given port.
This is the port used to reach the dedicated CPU port. This function
will be extended later to setup the global upstream port as well.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The mv88e6xxx driver currently assumes a single CPU port in the fabric
and thus floods frames with unknown DA on a single DSA port, the one
that is one hop closer to the CPU port.
With multiple CPU ports in mind, this isn't true anymore because CPU
ports could be found behind both DSA ports of a device in-between
others.
For example in a A <-> B <-> C fabric, both A and C having CPU ports,
device B will have to flood such frame to its two DSA ports.
This patch considers both CPU and DSA ports of a device as upstream
ports, where to flood frames with unknown DA addresses.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- The spec defines CSR address ranges for indirect ME CSRs. For Each TLV
chunk in the spec, dump a chunk that includes the spec and the data
over the defined address range.
- Each indirect CSR has 8 contexts. To read one context, first write the
context to a specific derived address, read it back, and then read the
register value.
- For each address, read and dump all 8 contexts in this manner.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- The spec defines CSR address ranges for these types.
- Dump each TLV chunk in the spec as a chunk that includes the spec and
the data over the defined address range.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Dump FW name as TLV, based on dump specification.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Add spec TLV for hwinfo field, containing key string as data.
- Add dump TLV for hwinfo field, with data being key and value as packed
zero-terminated strings.
- If specified hwinfo field is not found, dump the spec TLV as -ENOENT
error.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Dump hwinfo as separate TLV chunk, in a packed format containing
zero-separated key and value strings.
- This provides additional debug context, if requested by the dumpspec.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Support rtsym TLVs.
- If specified rtsym is not found, dump the spec TLV as -ENOENT error.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Perform dumpspec traversals for calculating size and populating the
dump.
- Initially, wrap all spec TLVs in dump error TLVs (changed by later
patches in the series).
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Use a TLV structure, with the typed chunks aligned to 8-byte sizes.
- Dump numeric fields as big-endian.
- Prolog contains the dump level.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Load the TLV-based binary specification of what needs to be included in
a dump, from the "_abi_dump_spec" rtsymbol. If the symbol is not defined,
then dumps for levels >= 1 are not supported.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Skeleton code to perform a binary debug dump via ethtoolops
"set_dump", "get_dump_flags" and "get_dump_data", i.e. the ethtool
-W/w mechanism.
- Skeleton functions for debugdump operations provided.
- An integer "dump level" can be specified, this is stored between
ethtool invocations. Dump level 0 is still the "arm.diag" resource for
backward compatibility. Other dump levels each define a set of state
information to include in the dump, driven by a spec from FW.
Signed-off-by: Carl Heymann <carl.heymann@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Stefan Schmidt says:
====================
pull-request: ieee802154-next 2017-12-04
Some update from ieee802154 to *net-next*
Jian-Hong Pan updated our docs to match the APIs in code.
Michael Hennerichs enhanced the adf7242 driver to work with adf7241
devices and reworked the IRQ and packet handling in the driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Using NULL as argument for the DMA mapping API is bogus, as the DMA
mapping API may use information from the "struct device" to perform
the DMA mapping operation. Therefore, pass the appropriate "struct
device".
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are two types of "struct device": the one representing the
physical device on its physical bus (platform, SPI, PCI, etc.), and
the one representing the logical device in its device class (net,
etc.).
The DMA mapping API expects to receive as argument a "struct device"
representing the physical device, as the "struct device" contains
information about the bus that the DMA API needs.
However, the sh_eth driver mistakenly uses the "struct device"
representing the logical device (embedded in "struct net_device")
rather than the "struct device" representing the physical device on
its bus.
This commit fixes that by adjusting all calls to the DMA mapping API.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Functions nsim_bpf_create_prog and nsim_bpf_destroy_prog are local to the
source and do not need to be in global scope, so make them static.
Cleans up sparse warnings:
symbol 'nsim_bpf_create_prog' was not declared. Should it be static?
symbol 'nsim_bpf_destroy_prog' was not declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When statistics are read from debugfs, make sure that they
are actually updated from the firmware.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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If FW loads without a problem, leaving init_dbg on can
cause a confusion, since the user won't necessarily
remember it is still turned on, and there are flows in
which everything continues as usual, only without
stopping the device after INIT, even if there is no FW
assert. On 22000 HW, for instance, this causes a
warning, since the paging is getting initialized twice.
Solve the issue by making this module param effective
only if the FW indeed asserts during INIT.
Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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When sending LQ command, verify the rate scaling is not in firmware.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Replace sprintf by scnprintf throughout rs code.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This patch adds basic debugfs hooks for rate scaling.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This patch sends to the FW notification configuration command and
handles the update responses.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This patch adds rate scaling configuration command and
implements a few other handlers.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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This patch introduces a new instance of rate_control_ops for
the new API (adding only empty stubs here and the subsequent
patches in the series will fill in the implementation).
The decision which API to use is done during the register
step according to FW TLV.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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New devices will have rate scaling algorithm running in the firmware.
With this feature, the driver's responsiblity is to provide an initial
configuration and to handle notifications regarding recent rates and
some other parameters. Debugfs hooks will be still available for
reading the current rate/statistics and setting a fixed rate.
The old API is supported so far, though both APIs cannot be used
simultaneously.
This is the first patch in the series. It adds a new TLV specifying
FW support for the new API and updates lq_sta to support two types
of rate scaling.
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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We might erroneously get to error dumping code when the
device is already stopped.
In that case the driver will detect a defective value and will try to
reset the HW, assuming it is only a bus issue. The driver than
proceeds with the dumping.
The result has two side effects:
1. The device won't be stopped again, since the transport status is
already stopped, so the device remains powered on while it actually
should be stopped.
2. The dump in that case is completely garbaged and useless.
Detect and avoid this. It will also make debugging such issues
easier.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Since the removal of non-DQA code, we don't need the queues
variable any more. Remove it.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Load version 36 of the API for these devices, if available. We
skipped version 35.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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Add the WFA vendor specific TPC report IE to probe requests
when it is not added by the FW. The FW will still need to set
the tx power field.
Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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With the phylib now being aware of the "reset-gpios" PHY node property,
there should be no need to frob the PHY reset in this driver anymore...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The PHY devices sometimes do have their reset signal (maybe even power
supply?) tied to some GPIO and sometimes it also does happen that a boot
loader does not leave it deasserted. So far this issue has been attacked
from (as I believe) a wrong angle: by teaching the MAC driver to manipulate
the GPIO in question; that solution, when applied to the device trees, led
to adding the PHY reset GPIO properties to the MAC device node, with one
exception: Cadence MACB driver which could handle the "reset-gpios" prop
in a PHY device subnode. I believe that the correct approach is to teach
the 'phylib' to get the MDIO device reset GPIO from the device tree node
corresponding to this device -- which this patch is doing...
Note that I had to modify the AT803x PHY driver as it would stop working
otherwise -- it made use of the reset GPIO for its own purposes...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
[geert: Propagate actual errors from fwnode_get_named_gpiod()]
[geert: Avoid destroying initial setup]
[geert: Consolidate GPIO descriptor acquiring code]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch introduces an eBPF based queue selection method. With this,
the policy could be offloaded to userspace completely through a new
ioctl TUNSETSTEERINGEBPF.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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According to LS1021A RM, the value of PAL can be set so that the start of the
IP header in the receive data buffer is aligned to a 32-bit boundary. Normally,
setting PAL = 2 provides minimal padding to ensure such alignment of the IP
header.
However every incoming packet's 8-byte time stamp will be inserted into the
packet data buffer as padding alignment bytes when hardware time stamping is
enabled.
So we set the padding 8+2 here to avoid the flooded alignment faults:
root@128:~# cat /proc/cpu/alignment
User: 0
System: 17539 (inet_gro_receive+0x114/0x2c0)
Skipped: 0
Half: 0
Word: 0
DWord: 0
Multi: 17539
User faults: 2 (fixup)
Also shown when exception report enablement
CPU: 0 PID: 161 Comm: irq/66-eth1_g0_ Not tainted 4.1.21-rt13-WR8.0.0.0_preempt-rt #16
Hardware name: Freescale LS1021A
[<8001b420>] (unwind_backtrace) from [<8001476c>] (show_stack+0x20/0x24)
[<8001476c>] (show_stack) from [<807cfb48>] (dump_stack+0x94/0xac)
[<807cfb48>] (dump_stack) from [<80025d70>] (do_alignment+0x720/0x958)
[<80025d70>] (do_alignment) from [<80009224>] (do_DataAbort+0x40/0xbc)
[<80009224>] (do_DataAbort) from [<80015398>] (__dabt_svc+0x38/0x60)
Exception stack(0x86ad1cc0 to 0x86ad1d08)
1cc0: f9b3e080 86b3d072 2d78d287 00000000 866816c0 86b3d05e 86e785d0 00000000
1ce0: 00000011 0000000e 80840ab0 86ad1d3c 86ad1d08 86ad1d08 806d7fc0 806d806c
1d00: 40070013 ffffffff
[<80015398>] (__dabt_svc) from [<806d806c>] (inet_gro_receive+0x114/0x2c0)
[<806d806c>] (inet_gro_receive) from [<80660eec>] (dev_gro_receive+0x21c/0x3c0)
[<80660eec>] (dev_gro_receive) from [<8066133c>] (napi_gro_receive+0x44/0x17c)
[<8066133c>] (napi_gro_receive) from [<804f0538>] (gfar_clean_rx_ring+0x39c/0x7d4)
[<804f0538>] (gfar_clean_rx_ring) from [<804f0bf4>] (gfar_poll_rx_sq+0x58/0xe0)
[<804f0bf4>] (gfar_poll_rx_sq) from [<80660b10>] (net_rx_action+0x27c/0x43c)
[<80660b10>] (net_rx_action) from [<80033638>] (do_current_softirqs+0x1e0/0x3dc)
[<80033638>] (do_current_softirqs) from [<800338c4>] (__local_bh_enable+0x90/0xa8)
[<800338c4>] (__local_bh_enable) from [<8008025c>] (irq_forced_thread_fn+0x70/0x84)
[<8008025c>] (irq_forced_thread_fn) from [<800805e8>] (irq_thread+0x16c/0x244)
[<800805e8>] (irq_thread) from [<8004e490>] (kthread+0xe8/0x104)
[<8004e490>] (kthread) from [<8000fda8>] (ret_from_fork+0x14/0x2c)
Signed-off-by: Zumeng Chen <zumeng.chen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In exisiting code, the way to detect if driver/client reset should
be executed or if hardware should be be soft resetted was overly
complex.
Existing code use to read the interrupt status register from task
context to figure out if the interrupt source event was reset and
then use clear the interrupt source for reset while waiting for the
hardware to finish the reset. This behaviour again was confusing
and overly complex in terms of the flow.
This patch simplifies the handling of the requested reset and the
pending reset(i.e. reset which have already been asserted by the
software and hardware has acknowledged back to driver that it is
processing the hardware reset through interrupt)
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Existing common service task was being used to service the reset
requests. This patch tries to make the handling of reset cleaner
by separating task to handle the reset requests. This might in
turn help in adapting similar handling approach for other
interrupt events like mailbox, sharing vector 0 interrupt.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The reset interrupt event shares common miscellaneous interrupt
Vector 0. In the existing reset interrupt handling we disable
the Vector 0 interrupt in misc interrupt handler and re-enable
them later in context to common service task.
This also means other event sources like mailbox would also be
deferred or if the interrupt event was due to mailbox(which shall
be supported for VF soon), it could delay the reset handling.
This patch reorganizes the reset interrupt handling logic and
makes it more fair to other events.
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: lipeng <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Previously we swapped the tx_packets, tx_bytes and tx_dropped counters
with rx_packets, rx_bytes and rx_dropped counters, respectively. This
behaviour is correct and expected for VF representors but it should not
be swapped for physical port mac representors.
Fixes: eadfa4c3be99 ("nfp: add stats and xmit helpers for representors")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Function gem_add_flow_filter called on line 2958 inside lock on line 2949
but uses GFP_KERNEL
Generated by: scripts/coccinelle/locks/call_kern.cocci
Fixes: ae8223de3df5 ("net: macb: Added support for RX filtering")
CC: Rafal Ozieblo <rafalo@cadence.com>
Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert phylink to fwnode, switching phylink_create() from taking a
device_node to taking a fwnode_handle. This will allow other firmware
systems to take advantage of sfp/phylink support.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert sfp-bus to use fwnode rather than device_node internally, so
we can support more than just device tree firmware.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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drivers/net/phy/sfp-bus.c:298:13: warning: context imbalance in 'sfp_bus_release' - wrong count at exit
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add kernel-doc documentation for sfp kernel APIs, and link it into the
networking kapi documentation under "Network device support".
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add kernel-doc documentation for phylink kernel APIs, and link it into
the networking kapi documentation under "Network device support".
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Restart 802.3z negotiation when the net device is brought up to ensure
that the link partner has our current link modes.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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phylink_init_eee() serves no purpose, remove it.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for handling the faster 2.5G and 10G link modes when used
with SFP modules.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since the handling of SGMII and 802.3z is now the same, combine the
MLO_AN_xxx constants into a single MLO_AN_INBAND, and use the PHY
interface mode to distinguish between Cisco SGMII and 802.3z.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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