Commit Graph

664256 Commits

Author SHA1 Message Date
Julian Wiedmann
993e19c0ae s390/qeth: convert to ETHTOOL_GLINKSETTINGS API
get_settings() is deprecated and lacks support for higher link
speeds, so implement get_link_ksettings() instead.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:35 -04:00
Julian Wiedmann
774afb8e90 s390/qeth: clean up qeth_set_ecmd_adv_sup()
In preparation for moving to get_link_ksettings(), clean up how
we build the supported and advertised port/speed masks.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:34 -04:00
Julian Wiedmann
2aedd56af1 s390/qeth: use and remove some defines
1. a buffer has 16 is_header flags, because that's its # of elements
2. replace the last occurrence of QETH_HEADER_SIZE, and remove it

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:34 -04:00
Julian Wiedmann
e38db6beee s390/qeth: use correct return type for hard_start_xmit()
ndo_start_xmit() expects us to return netdev_tx_t here...

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:34 -04:00
Julian Wiedmann
4e8d7e6256 s390/qeth: remove unused parameter
'elements_needed' is not used in qeth_do_send_packet_fast(),
so consequently remove it.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:34 -04:00
Julian Wiedmann
96d1bb53ec s390/qeth: move gdev shutdown handler to core
Duplicated code.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:34 -04:00
Julian Wiedmann
d73ef32493 s390/qeth: move NAPI poll routine to core
Identical code, we just need to call a layer-specific hook
to process any received buffer.

qeth_buffer_reclaim_work() is shuffled around to avoid a
forward declaration for qeth_queue_input_buffer().

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:33 -04:00
Julian Wiedmann
942d6984aa s390/qeth: move common ioctl handling to core
There's a number of layer-independent ioctls that we can handle
in core, and reduce code duplication. For layer-specific ioctls,
add a do_ioctl() discipline hook.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:51:33 -04:00
Johannes Berg
40077e0cf6 bpf: remove struct bpf_map_type_list
There's no need to have struct bpf_map_type_list since
it just contains a list_head, the type, and the ops
pointer. Since the types are densely packed and not
actually dynamically registered, it's much easier and
smaller to have an array of type->ops pointer. Also
initialize this array statically to remove code needed
to initialize it.

In order to save duplicating the list, move it to the
types header file added by the previous patch and
include it in the same fashion.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:38:43 -04:00
Johannes Berg
be9370a7d8 bpf: remove struct bpf_prog_type_list
There's no need to have struct bpf_prog_type_list since
it just contains a list_head, the type, and the ops
pointer. Since the types are densely packed and not
actually dynamically registered, it's much easier and
smaller to have an array of type->ops pointer. Also
initialize this array statically to remove code needed
to initialize it.

In order to save duplicating the list, move it to a new
header file and include it in the places needing it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:38:43 -04:00
David S. Miller
98601e8bc6 Merge branch 'fec-driver-code-clean'
Fugang Duan says:

====================
net: fec: driver code clean

The patch series are for fec ethernet driver code clean up, each patch is
independent.
Patch #1,#4,#5 are code clean up.
Patch #2,#3 are for aarch64 platform.
Patch #6 is for i.MX6UL to add lost errata workaround.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:36:28 -04:00
Fugang Duan
99492ad488 net: fec: add ERR007885 for i.MX6ul enet IP
The errata ERR007885 HW fix don't add to i.MX6ul ENET IP version,
so add sw workaroud for the chip.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:36:28 -04:00
Fugang Duan
c10bc0e7b7 net: fec: correct the errata number comment typo
Correct the errata number ERR006358 comment typo.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:36:28 -04:00
Fugang Duan
9269e5560b net: fec: add phy-reset-gpios PROBE_DEFER check
Many boards use i2c/spi expander gpio as phy-reset-gpios and these
gpios maybe registered after fec port, driver should check the return
value of .of_get_named_gpio().

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:36:27 -04:00
Fugang Duan
949201286f net: fec: pass ->dev to dma_alloc__coherent() API
In aarch64 system, it requires to trasfer ->dev to dma_alloc_coherent()
API, otherwise allocate failed and print kernel warning.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:36:27 -04:00
Fugang Duan
145d6e295f net: fec: avoid BD pointer type cast to 32bit
In aarch64 system, the BD pointer is 64bit, and the high-order 32-bits
of the address is effective, so replace usigned with (void *) type to
aovid 64bit address is casted to 32bit in .fec_enet_get_nextdesc() and
.fec_enet_get_prevdesc() functions.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:36:27 -04:00
Fugang Duan
61e04ccbcb net: fec: add return value check after calling .of_property_read_u32()
Add return value check after calling .of_property_read_u32() to avoid
the warning reported by coverity.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 14:36:27 -04:00
David S. Miller
526f1cfb1f Merge branch 'l2tp-drop-l2tp_session_find'
Guillaume Nault says:

====================
l2tp: drop l2tp_session_find()

l2tp_netlink is the last user of l2tp_session_find(), but that call is
useless. Let's remove it and drop l2tp_session_find() definitely.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 13:48:10 -04:00
Guillaume Nault
55a3ce3b9d l2tp: remove l2tp_session_find()
This function isn't used anymore.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 13:48:09 -04:00
Guillaume Nault
af87ae465a l2tp: remove useless duplicate session detection in l2tp_netlink
There's no point in checking for duplicate sessions at the beginning of
l2tp_nl_cmd_session_create(); the ->session_create() callbacks already
return -EEXIST when the session already exists.

Furthermore, even if l2tp_session_find() returns NULL, a new session
might be created right after the test. So relying on ->session_create()
to avoid duplicate session is the only sane behaviour.

Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 13:48:09 -04:00
David S. Miller
93411c27d6 Merge branch 'net-remove-pci_enable_msix'
Christoph Hellwig says:

====================
remove pci_enable_msix() V3

this series removes the remaining callers of the pci_enable_msix()
function and then the function itself.  The final removal has been
Acked by Bjorn.

Changes since V2:
 - add another patch on Dave's request
 - add various acks
 - spelling fixes in the commit logs

Changes since V1:
 - replace the two previous thunderx patches with a new one from Thanneeru
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 11:16:04 -04:00
Christoph Hellwig
3680b1f655 mlxsw: convert to pci_alloc_irq_vectors
Trivial conversion as only one vector is supported, but at least we
lose the useless msix_entry member in the per-device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 11:16:03 -04:00
Christoph Hellwig
4244de1c64 PCI: remove pci_enable_msix
Unused now that all callers switched to pci_alloc_irq_vectors.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 11:16:03 -04:00
Thanneeru Srinivasulu
ce211b172b net: thunderx: Switch to pci_alloc_irq_vectors
Remove deprecated pci_enable_msix API in favour of its
successor pci_alloc_irq_vectors.

Signed-off-by: Thanneeru Srinivasulu <tsrinivasulu@cavium.com>
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 11:16:03 -04:00
Christoph Hellwig
da6f4cf58e net/ena: switch to pci_alloc_irq_vectors
Remove the deprecated pci_enable_msix API in favour of its successor.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 11:16:03 -04:00
Christoph Hellwig
f3297f686d net: alx: switch to pci_alloc_irq_vectors
Remove the deprecated pci_enable_msix API in favour of its successor,
and make sure to handle errors during IRQ setup properly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 11:16:02 -04:00
David S. Miller
c6606a87db Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
Steffen Klassert says:

====================
pull request (net-next): ipsec-next 2017-04-11

1) Remove unused field from struct xfrm_mgr.

2) Code size optimizations for the xfrm prefix hash and
   address match.

3) Branch optimization for addr4_match.

All patches from Alexey Dobriyan.

Please pull or let me know if there are problems.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11 10:10:30 -04:00
David S. Miller
7988ceefd7 Merge branch 'ftgmac100-rework-batch3-tx-path'
Benjamin Herrenschmidt says:

====================
ftgmac100: Rework batch 3 - TX path

This is version 2 of the third batch of updates to
the ftgmac100 driver.

This one tackles the TX path of the driver. This provides the
bulk of the performance improvements by adding support for
fragmented sends along with a bunch of cleanups.

Version 2 fixes a patch splitting mistake and uses
eth_skb_pad() (which uses skb_put_padto) to pad ethernet
frames rather than skb_padto(), thus removing the need to
also pad the packet headlen in a couple of places.

Subsequent batches will add various features (ethtool functions,
vlan offlan, ...) and cleanups.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:59 -04:00
Benjamin Herrenschmidt
52c0cae874 ftgmac100: Remove tx descriptor accessors
Directly access the fields when needed. The accessors add clutter
not clarity and in some cases cause unnecessary read-modify-write
type access on the slow (uncached) descriptor memory.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
6db7470445 ftgmac100: Add support for fragmented tx
Add NETIF_F_SG and create multiple TX ring entries for skb fragments.

On reclaim, the skb is only freed on the segment marked as "last".

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
e924553972 ftgmac100: Don't clear tx desc fields unnecessarily
Those are non-cachable stores, let's avoid those we don't need. Remove
the helper, it's not particularly helpful and since it uses "priv"
I can't move it to the header file.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
42c2d19786 ftgmac100: Split tx packet freeing from ftgmac100_tx_complete_packet()
This moves the packet freeing to a separate function
which is also used by ftgmac100_free_buffers() and will
be used more in the error path of fragmented sends.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
4a2712b2f0 ftgmac100: Move the barrier out of ftgmac100_txdes_set_dma_own()
We'll use variants of this accessor without barriers when
building series of descriptors for fragmented sends

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
6ad3d7edcb ftgmac100: Cleanup tx queue handling
We have a private lock which isn't terribly useful, and we maintain
a "tx_pending" counter for information that's already available
via a trivial arithmetic operation. Then we unconditionaly wake
the queue even when not stopped. Finally our code in tx isn't
really safe vs. a concurrent reclaim. The aspeed chips aren't SMP
today but I prefer the code being right and future proof.

So rip that out and replace it with more "standard" queue handling,
currently with a threshold of 1 queue element, which will be
increased when we implement fragmented sends.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
83617317d2 ftgmac100: Store tx skbs in a separate array
Rather than in the descriptor. The descriptor is mapped non-cachable
and rather slow to access.

Since to do that we need to keep track of the tx "pointer" we also
have no use of all the accesors to manipulate it, just open code
it, it's as clear and will help when adding fragmented sends.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
9b0f7711d9 ftgmac100: Pad small frames properly
Rather than just transmitting garbage past the end of the small
packet.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
3e427a3363 ftgmac100: Factor tx packet dropping path
Use a simple goto to a drop path at the tail of the function,
it will be used in a few more cases soon

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
43b25ee712 ftgmac100: Merge ftgmac100_xmit() into ftgmac100_hard_start_xmit()
This will make subsequent rework of the tx path simpler

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
58e0c34871 ftgmac100: Move ftgmac100_hard_start_xmit() around
Move it below ftgmac100_xmit() and the rest of the tx path

No code change.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Benjamin Herrenschmidt
d3ca8fb180 ftgmac100: Add a tx timeout handler
We have a reset task to reset our chip, use it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10 16:03:57 -04:00
Florian Fainelli
eb976a55c7 net: dsa: mt7530: Include gpio/consumer.h for GPIO functions
Fixes build errors seen with CONFIG_GPIOLIB disabled and warnings enabled:

drivers/net/dsa/mt7530.c: In function 'mt7530_setup':
drivers/net/dsa/mt7530.c:948:3: error: implicit declaration of function 'gpiod_set_value_cansleep' [-Werror=implicit-function-declaration]
   gpiod_set_value_cansleep(priv->reset, 0);
   ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/mt7530.c: In function 'mt7530_probe':
drivers/net/dsa/mt7530.c:1068:17: error: implicit declaration of function 'devm_gpiod_get_optional' [-Werror=implicit-function-declaration]
   priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset",
                 ^~~~~~~~~~~~~~~~~~~~~~~
drivers/net/dsa/mt7530.c:1069:13: error: 'GPIOD_OUT_LOW' undeclared (first use in this function)
             GPIOD_OUT_LOW);
             ^~~~~~~~~~~~~
drivers/net/dsa/mt7530.c:1069:13:

Fixes: b8f126a8d5 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09 18:28:54 -07:00
Alexander Alemayhu
3c60a531b9 bpf: fix comment typo
o s/bpf_bpf_get_socket_cookie/bpf_get_socket_cookie

Signed-off-by: Alexander Alemayhu <alexander@alemayhu.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09 18:26:08 -07:00
stephen hemminger
f9645430ef netvsc: use napi_consume_skb
This allows using deferred skb freeing and with NAPI. And get buffer
recycling.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09 18:14:25 -07:00
David S. Miller
cdd3210c3d wireless-drivers-next patches for 4.12
Lots of bugfixes as usual but also some new features.
 
 Major changes:
 
 ath10k
 
 * improve firmware download time for QCA6174 and QCA9377, especially
   helps resume time
 
 ath9k_htc
 
 * add support AirTies 1eda:2315 AR9271 device
 
 rt2x00
 
 * add support MT7620
 
 mwifiex
 
 * enable auto deep sleep mode for USB chipsets
 
 brcmfmac
 
 * add support for network namespaces (WIPHY_FLAG_NETNS_OK)
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Merge tag 'wireless-drivers-next-for-davem-2017-04-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Kalle Valo says:

====================
wireless-drivers-next patches for 4.12

Lots of bugfixes as usual but also some new features.

Major changes:

ath10k

* improve firmware download time for QCA6174 and QCA9377, especially
  helps resume time

ath9k_htc

* add support AirTies 1eda:2315 AR9271 device

rt2x00

* add support MT7620

mwifiex

* enable auto deep sleep mode for USB chipsets

brcmfmac

* add support for network namespaces (WIPHY_FLAG_NETNS_OK)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09 18:13:12 -07:00
David S. Miller
bf74b20d00 Revert "rtnl: Add support for netdev event to link messages"
This reverts commit def12888c1.

As per discussion between Roopa Prabhu and David Ahern, it is
advisable that we instead have the code collect the setlink triggered
events into a bitmask emitted in the IFLA_EVENT netlink attribute.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09 14:45:21 -07:00
David S. Miller
0492b71c42 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
40GbE Intel Wired LAN Driver Updates 2017-04-08

This series contains updates to i40e and i40evf only.

Mitch fixes an issue where the client driver (i40iw) was attempting to
load on x710 devices (which do not support iWARP), so only register with
the client if iWARP is supported.

Jake fixes up error messages to better clarify to the user when adding a
invalid flow type.  Updates the driver to look up the MAC address from
eth_get_platform_mac_address() first before checking what the firmware
provides.  Cleans up code so we are not repeating a duplicate loop, by
checking both transmit and receive queues in a single loop.  Also cleans
up flags never used, so remove the definitions.

Alex does cleanup so that we are always updating pf->flags when a change
is made to the private flags.  Adds support for 3K buffers to the receive
path so that we can provide the additional padding needed in the event
of NET_IP_ALIGN being non-zero or a cache line being greater than 64.
Adds support for build_skb() to i40e/i40evf.

Maciej adjusts the scope of the rtnl lock held during reset because it
was stopping other PFs from running their reset procedures.

Alan reduces code complexity in i40e_detect_recover_hung_queue().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-09 13:41:06 -07:00
David S. Miller
417d978fa5 Merge branch 'dsa-receive-path-simplifications'
Florian Fainelli says:

====================
net: dsa: Receive path simplifications

This patch series does factor the common code found in all tag implementations
into dsa_switch_rcv(). The original motivation was to add GRO support, but this
may be a lot of work with unclear benefits at this point.

Changes in v2:
- take care of tag_mtk.c in the process
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-08 13:49:36 -07:00
Florian Fainelli
a86d8becc3 net: dsa: Factor bottom tag receive functions
All DSA tag receive functions do strictly the same thing after they have located
the originating source port from their tag specific protocol:

- push ETH_HLEN bytes
- set pkt_type to PACKET_HOST
- call eth_type_trans()
- bump up counters
- call netif_receive_skb()

Factor all of that into dsa_switch_rcv(). This also makes us return a pointer to
a sk_buff, which makes us symetric with the xmit function.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-08 13:49:36 -07:00
Florian Fainelli
16c5dcb13a net: dsa: Move skb_unshare() to dsa_switch_rcv()
All DSA tag receive functions need to unshare the skb before mangling it, move
this to the generic dsa_switch_rcv() function which will allow us to make the
tag receive function return their mangled skb without caring about freeing a
NULL skb.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-08 13:49:36 -07:00
Florian Fainelli
9d7f9c4f78 net: dsa: Do not check for NULL dst in tag parsers
dsa_switch_rcv() already tests for dst == NULL, so there is no need to duplicate
the same check within the tag receive functions.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-08 13:49:36 -07:00