There is otherwise a risk of a possible null pointer dereference.
Was largely found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case of transport HIPER a sock struct is allocated for an incoming
connect request. If the backlog queue is full this socket is not
needed, but is left in the list of af_iucv sockets. Final socket
release posts console message "Attempt to release alive iucv socket".
This patch makes sure the new created socket is cleaned up correctly
if the backlog queue is full.
Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Reported-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If a socket is bound to an address using before calling connect
it is usual to leave it to the network system to choose an appropriate
outgoing application name respective port address.
af_iucv on VM uses a counter and uses simple numbers as unique identifiers.
This behaviour was missing when af_iucv is used with HiperSockets.
This patch contains a simple approach to harmonize af_iucv's behaviour.
Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla says:
====================
be2net: patch set
Patch 1 is a minor optimization for issuing multicast promisc FW cmd
only when the interface is not already in that mode.
Patch 2 provides support for VF TX-rate setting on Skyhawk-R.
Patch 3 provides support for flashing new FW flash regions.
Patches 4, 5, 6 cleanup the MCC processing (for FW cmds) code in be_cmds.c.
The MCC error reporting and event handling code are areas that needed
cleanup.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The MCC async event processing code has 2 issues:
a) because of long struct names the code indentation is badly broken
b) description and definitions of how an MCC completion is interpreted as
an async event are confusing (for e.g. the last word of an MCC event is
named "code", while "code" is just a sub-field of the last word.)
This patch fixes the structure definitions, comments and re-factors code
as needed.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For some FW cmds, the caller just issues the cmd and doesn't wait for a
response. The response handling is done in the MCCQ compl processing context
only. Move this code into a separate routine to make be_mcc_compl_process()
more manageable.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch improves MCCQ error status handling in the following ways:
a) A MCC cmd completion returns a base-status and an addl-status.
So far, the routine be_mcc_compl_process() returned only the "status" value.
Now, embedd both statuses in the return value and let the caller routine access
the value of interest using base_status() and addl_status() macros.
b) Rename variables accordingly (base/addl) to avoid confusion while error
checking.
b) Some of the errors returned by FW are harmless and so an error msg is not
logged for such errors. Capture this logic in a separate routine to make the
code more readable.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Certain new flash regions have been added to Skyhawk-R FW image. The newer
FW images specify op_types for each region. A region is flashed only
when it's CRC doesn't match that of the region on the HW flash. While
upgrading to a new FW image the driver is expected to tolerate certain
errors.
This patch re-factors code under be_flash() to support the above scheme.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Skyhawk-R FW supports TX-rate setting only as a % value of the link
speed, set via the SET_PROFILE_CONFIG cmd.
This patch makes the necessary changes to the FW cmd descriptors to support
the above change and also introduces checks in be_set_vf_tx_rate() to allow
only discrete values (that map to % of the link-speed).
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Set mc-promisc (multicast promiscuous) mode on an interface, only if it is
*not already* in that mode.
Also removed logs that report interface being set to multicast
promiscous mode. In an earlier comment on the netdev list such log messages
were deemed unnecessary as this behaviour is common across most of the
ethernet drivers.
Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville says:
====================
Please pull this batch of updates intended for 3.16...
For the mac80211 bits, Johannes says:
"Here I just have Heikki's rfkill GPIO cleanups.
The ARM/tegra patch is OK with the maintainer (Stephen). Let me know of
any problems."
and;
"We have a whole bunch of work on CSA by Andrei, Luca and Michal, but
unfortunately it doesn't seem quite complete yet so it's still disabled.
There's some TDLS work from Arik, and the rest is mostly minor fixes and
cleanups."
For the NFC bits, Samuel says:
"This is the NFC pull request for 3.16. We have:
- STMicroeectronics st21nfca support. The st21nfca is an HCI chipset and
thus relies on the HCI stack. This submission provides support for tag
redaer/writer mode (including Type 5) and device tree bindings.
- PM runtime support and a bunch of bug fixes for TI's trf7970a.
- Device tree support for NXP's pn544. Legacy platform data support is
obviously kept intact.
- NFC Tag type 4B support to the NFC Digital stack.
- SOCK_RAW type support to the raw NFC socket, and allow NCI
sniffing from that. This can be extended to report HCI frames and also
proprietarry ones like e.g. the pn533 ones."
For the iwlwifi bits, Emmanuel says:
"Eran continues to work on new devices, Eyal is still digging in
the rate control stuff, and Johannes added new functionality to the
debug system we have in place now along with a few cleanups he made
on the way. That's pretty much it."
and;
"Avri continues to work on the power code and Eran is improving the
NVM handling as a preparations for new devices on which he works
with Liad. Luca cleans up a bit the code while working on CSA. I have
the regular BT Coex stuff and a small lockdep fix. Johannes has his
regular amount of clean ups and improvements, the main one is the
ability to leave 2 chains open to improve diversity and hence the
throughput in high attenuation scenarios."
and;
"The regular amount of housekeeping here. I merged iwlwifi-fixes.git to
be able to add the patch you didn't want in wireless.git at that stage
of the -rc cycle. Luca has a few preparations for CSA implementation
and also what seems to be a bugfix for P2P but hasn't caused issues
we could notice."
For the Atheros bits, Kalle says:
"For ath10k Michal did various small fixes on how we handle
hardware/firmware problems and he also fixed two memory leaks."
Also included are a couple of pulls from the wireless tree to
avoid/resolve merge issues...
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This preprocessor check is commented out ever since this file was added
during the v2.3 development cycle. It is unclear what it purpose might
have been. Whatever it was, it can safely be removed now.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
The memory for private data is allocated using kzalloc/vzalloc in
alloc_netdev_mqs, thus there is no need to zero it again in the driver.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use is_zero_ether_addr() to check for the MAC address being all zeros instead of
open coding the check.
Also use ether_addr_copy() instead of a manual memcpy() to set the
netdev->dev_addr.
Furthermore, get rid of a redundant assignment of netdev->addr_len. This is
already set by ether_setup() which is called in tile_net_setup().
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bnx2x development team has transferred from Broadcom to Qlogic.
This patch updates some obsolete email addresses to usable ones.
The bnx2x files contain headers with legal information from
Broadcom. Qlogic Legal depratment is taking their time coming up
with their own legal info. So this patch only updates contact
information. I will follow up with a patch for the headers once I
have the required info.
Signed-off-by: Ariel Elior <ariel.elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
when system suspend, need to set pins to low power state to
save IO power consumption, there are three states of pinctrl:
"default", "idle" and "sleep". Currently enet supports default
and sleep state.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch converts raw opcodes for tcpdump tests into
BPF_STMT()/BPF_JUMP() combinations, which brings it into
conformity with the rest of the patches and it also makes
life easier to grasp what's going on in these particular
test cases when they ever fail. Also arrange payload from
the jump+holes test in a way as we have with other packet
payloads in the test suite.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This test for classic BPF probes stores and load combination
via X on all 16 registers of the scratch memory store. It
initially loads integer 100 and passes this value around
to each register while incrementing it every time, thus we
expect to have 116 as a result. Might be useful for JIT
testing.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This issue was reported by coccicheck using the semantic patch
at scripts/coccinelle/api/memdup.cocci
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Division of a 32 bit number by a 64 bit number causes the following link
error introduced by
7c2ce6e60f "enic: Add support for adaptive interrupt coalescing"
drivers/built-in.o: In function `enic_poll_msix':
enic_main.c:(.text+0x48710a): undefined reference to `__udivdi3'
make: *** [vmlinux] Error 1
Since numerator is 32 bit, convert denominator to 32 bit accordingly.
Fixes: 7c2ce6e60f ("enic: Add support for adaptive interrupt coalescing")
Reported-by: Jim Davis <jim.epost@gmail.com>
Cc: Christian Benvenuti <benve@cisco.com>
Cc: Sujith Sankar <ssujith@cisco.com>
Cc: Neel Patel <neepatel@cisco.com>
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-next-for-3.16-20140526' of git://gitorious.org/linux-can/linux-can-next
Add new xilinx CAN driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch moves data allocated using kzalloc to managed data allocated
using devm_kzalloc and cleans now unnecessary kfrees in probe and remove
functions. Also, linux/device.h is added to make sure the devm_*()
routine declarations are unambiguously available.
The following Coccinelle semantic patch was used for making the change:
@platform@
identifier p, probefn, removefn;
@@
struct platform_driver p = {
.probe = probefn,
.remove = removefn,
};
@prb@
identifier platform.probefn, pdev;
expression e, e1, e2;
@@
probefn(struct platform_device *pdev, ...) {
<+...
- e = kzalloc(e1, e2)
+ e = devm_kzalloc(&pdev->dev, e1, e2)
...
?-kfree(e);
...+>
}
@rem depends on prb@
identifier platform.removefn;
expression e;
@@
removefn(...) {
<...
- kfree(e);
...>
}
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Compile-Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Mack says:
====================
mdio: Parse DT nodes for auto-probed PHYs
Here's v2.
v1 -> v2:
* Switch to of_property_read_u32() in patch #1
* Check for mdio->dev_of_node in patch #2
* Added Florian's Reviewed-by: tags
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
of_get_property() can be called with NULL as 2nd argument if the caller
is not interested in the length of a property. Use that here so we can
get rid of a variable.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a function to walk the list of subnodes of a mdio bus and look for
a node that matches the phy's address with its 'reg' property. If found,
set the of_node pointer for the phy. This allows auto-probed pyh
devices to be augmented by information passed in via DT.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Factor out some logic into of_mdio_parse_addr() so it can be reused
later. While at it, use of_property_read_u32() rather than open-coding
the same logic again.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates
This series contains updates to e1000, e1000e, ixgbe and i40evf.
Emil provides a fix for ixgbe so that non-fiber devices with MNG FW enabled
are able to link at 100Mbps.
Jacob provides several changes for ixgbe, most of which are PTP related.
Renames ixgbe_ptp_enable() to ixgbe_ptp_feature_enable() to better reflect
the functions purpose. Extracts the hardware setup logic for the PTP
hardware bits from the ixgbe_ptp_set_ts_config() to enable future work for
the ixgbe_ptp_reset(). Maintain the hwstamp configuration through a reset
and extracts the creation of the PTP clock device from ptp_init() in order
to properly handle a suspend/resume cycle and only calls it if we don't
already have a ptp_clock pointer.
David provides a patch to expend the e1000e driver to turn on unicast
PROMISC when there is failure to write to a shared receive address register.
The fix update_phy_task() for 82579 is expanded to include newer PHYs as well
so that the dev_spec->eee_lp_ability has the correct value when going into
SX states.
Todd provides a e1000e fix an errata for 82574/82583 where it is possible
bad bits are read from SYSTIMH/L so check to see that the time is
incrementing at a reasonable rate and is a multiple of the time incremental
value. Removes a redundant igb PHY power down register write.
Andi Kleen out of lines two write functions for e1000e to save 30k text size.
Tobias Klauser converts the e1000 and i40evf drivers to use the
is_broadcast_ether_addr() and is_multicast_ether_addr().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the is_multicast_ether_addr helper function from linux/etherdevice.h
instead of open coding the multicast address check.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Use the is_broadcast_ether_addr/is_multicast_ether_addr helper functions
from linux/etherdevice.h instead of open coding them.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
One of the registers used to power down the PHY was found to be wrong
(should be bit 2 not bit 1) on further inspection it was also found to
be redundant.
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Out of lining these two common inlines saves about 30k text size,
due to their errata workarounds.
14131431 2008136 1507328 17646895 10d452f vmlinux-before-e1000e
14101415 2004040 1507328 17612783 10cbfef vmlinux-e1000e
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Previously, the update_phy_task was only calling e1000_set_eee_pchlan()
for phy.type 82579. This patch is to cause this function to be called
for 82579 and newer phy.types. This causes the dev_spec->eee_lp_ability
to have the correct value when going into SX states.
Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Due to a synchronization error, the value read from SYSTIML/SYSTIMH
might be incorrect.
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Previously, the check to turn on promiscuous mode only took into account
the total number of SHared Receive Address (SHRA) registers and if the
request was for a register within that range. It is possible that the
Management Engine might have locked a number of SHRA and not allowed a
new address to be written to the requested register.
Add a function to determine the number of unlocked SHRA registers. Then
determine if the number of registers available is sufficient for our needs,
if not then return -ENOMEM so that UNICAST PROMISC mode is activated.
Since the method by which ME claims SHRA registers is non-deterministic,
also add a return value to the function attempting to write an address
to a SHRA, and return a -E1000_ERR_CONFIG if the write fails. The error
will be passed up the function chain and allow the driver to also set
UNICAST PROMISC when this happens.
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Resume path calls .open but suspend path cannot call .stop because
fdirs should not be freed and control over hardware should not be
released until WoL is configured. To avoid having to duplicate all
changes made in .stop on suspend path split out part of .stop that
is relevant during suspend and call it from .stop and during suspend.
This fix also ensures that ixgbe_ptp_suspend is called during the
suspend path, and helps avoid similar errors. We can't call
ixgbe_ptp_stop, since it will free the PTP clock device, which we
shouldn't be doing during a suspend path.
Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since we are adding proper support for suspend of PTP, extract out of
ixgbe_ptp_stop those things relevant to suspend. Then, have
ixgbe_ptp_stop call ixgbe_ptp_suspend. The next patch in the series will
have ixgbe_ptp_suspend called from the ixgbe_suspend path.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
In order to properly handle a suspend/resume cycle, we cannot destroy
the PTP clock device. As part of this, we should only re-create the
device on first initialization. After a resume, when ixgbe_ptp_init is
called, we won't create a new clock, and we will use the old clock
device. To that end, this patch extracts the clock creation out of
ptp_init, and only calls it if we don't already have a ptp_clock
pointer.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Rather than clearing the hwtstamp configuration, we should use the known
configuration requested by the user and call the function which has now
been separated from the ioctl. This means that after a reset, the
timestamp mode will be maintained rather than lost. We still can't
maintain the clock value, however.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Currently all of the hardware setup logic for the PTP hardware bits is
buried inside of the ioctl which sets the timestamp configuration. This
makes it hard to use this logic in other places (primarily reset), and
this means we can't restore current timestamp mode upon a MAC reset.
Extracting this logic into a separate function will enable future work
for the ixgbe_ptp_reset function.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Since the name ixgbe_ptp_enable could be misconstrued as a function
which enables the whole PTP core, rename this function so that it is
clear the function is for enabling of the extra features such as PPS
signal.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Driver was calling setup_link to make sure that fiber interfaces with MNG FW
enabled will get link on probe because the laser was most likely turned off.
This prevented non-fiber devices with MNG FW from linking at 100Mbps.
This patch adds a check to only call setup_link for fiber devices.
Reported-and-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Tony Luck <tony.luck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This patch adds xilinx CAN controller support. This driver supports both ZYNQ
CANPS and Soft IP AXI CAN controller.
Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Florian Fainelli says:
====================
net: sysfs: documentation updates
This patch set contains some updates to the sysfs Documentation for the
sysfs net class.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Document the network device statistics counter that are exposed as sysfs
attributes.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add sysfs documentation for the various attributes of a network
interface exposed in /sys/class/<iface>/queues/{rx,tx}-<queue>/
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
