GitHub/moto-9609/android_kernel_motorola_exynos9610.git
9 years agomac80211: handle HW ROC expired properly
Ilan Peer [Sun, 6 Dec 2015 19:19:15 +0000 (21:19 +0200)]
mac80211: handle HW ROC expired properly

In case of HW ROC, when the driver reports that the ROC expired,
it is not sufficient to purge the ROCs based on the remaining
time, as it possible that the device finished the ROC session
before the actual requested duration.

To handle such cases, in case of ROC expired notification from
the driver, complete all the ROCs which are marked with hw_begun,
regardless of the remaining duration.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211_hwsim: check ATTR_FREQ for wmediumd (netlink) packets
Adam Welle [Tue, 1 Dec 2015 22:13:52 +0000 (17:13 -0500)]
mac80211_hwsim: check ATTR_FREQ for wmediumd (netlink) packets

If a packet is received from netlink with the frequency value set it is
checked against the current radio's frequency and discarded if different.
The frequency is also checked against data2->tmp_chan to support the "hw"
off-channel/scan case.

Signed-off-by: Adam Welle <arwelle@cert.org>
[allow both simultaneously, add locking]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211_hwsim: check txrate for NULL
Amit Khatri [Mon, 30 Nov 2015 07:16:52 +0000 (12:46 +0530)]
mac80211_hwsim: check txrate for NULL

If the rate control algorithm messed up then the txrate pointer
here could be NULL - WARN and drop the packet from monitoring.

Signed-off-by: Amit Khatri <amit.khatri@samsung.com>
Signed-off-by: Rahul Jain <rahul.jain@samsung.com>
[rewrite commit message, add warning]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: reject zero cookie in mgmt-tx/roc cancel
Johannes Berg [Tue, 1 Dec 2015 22:15:26 +0000 (23:15 +0100)]
mac80211: reject zero cookie in mgmt-tx/roc cancel

When cancelling, you can cancel "any" (first in list) mgmt-tx
or remain-on-channel operation by using the value 0 for the
cookie along with the *opposite* operation, i.e.
 * cancel the first mgmt-tx by cancelling roc with 0 cookie
 * cancel the first roc by cancelling mgmt-tx with 0 cookie

This isn't really that bad since userspace should only pass
cookies that we gave it, but could lead to hard-to-debug
issues so better prevent it and reject zero values since we
never hand those out.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211_hwsim: stop using pointers as cookies
Johannes Berg [Fri, 6 Nov 2015 10:57:23 +0000 (11:57 +0100)]
mac80211_hwsim: stop using pointers as cookies

Instead of using pointers, use sequentially assigned cookies.
This is easier to understand while debugging and also avoids
problems when the pointer is reused for the next allocation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211_hwsim: Advertise support for VHT IBSS
Jouni Malinen [Thu, 26 Nov 2015 18:51:04 +0000 (20:51 +0200)]
mac80211_hwsim: Advertise support for VHT IBSS

VHT can be used with IBSS without needing any additional changes in
mac80211_hwsim, so start claiming support for this to increase test
coverage.

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211_hwsim: Update timestamp in Probe Response frames
Jouni Malinen [Thu, 26 Nov 2015 18:50:12 +0000 (20:50 +0200)]
mac80211_hwsim: Update timestamp in Probe Response frames

Previously, this was done only for Beacon frames, but similar timestamp
update is needed for Probe Response frames to make these more accurately
match the real IEEE 802.11 behavior. Previously, all zeros timestamp was
sent in Probe Response frames.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: Allow a STA to join an IBSS with 80+80 MHz channel
Jouni Malinen [Thu, 26 Nov 2015 18:49:38 +0000 (20:49 +0200)]
mac80211: Allow a STA to join an IBSS with 80+80 MHz channel

While it was possible to create an IBSS with 80+80 MHz channel, joining
such an IBSS resulted in falling back to 20 MHz channel with VHT
disabled due to a missing switch case for 80+80.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: reg: Refactor calculation of bandwidth flags
Michal Sojka [Mon, 23 Nov 2015 18:27:16 +0000 (19:27 +0100)]
cfg80211: reg: Refactor calculation of bandwidth flags

The same piece of code appears at two places. Make a function from it.

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: rewrite remain-on-channel logic
Johannes Berg [Mon, 23 Nov 2015 22:53:51 +0000 (23:53 +0100)]
mac80211: rewrite remain-on-channel logic

Jouni found a bug in the remain-on-channel logic: when a short item
is queued, a long item is combined with it extending the original
one, and then the long item is deleted, the timeout doesn't go back
to the short one, and the short item ends up taking a long time. In
this case, this showed as blocking scan when running two test cases
back to back - the scan from the second was delayed even though all
the remain-on-channel items should long have been gone.

Fixing this with the current data structures turns out to be a bit
complicated, we just remove the long item from the dependents list
right now and don't recalculate the timeouts.

There's a somewhat similar bug where we delete the short item and
all the dependents go with it; to fix this we'd have to move them
from the dependents to the real list.

Instead of trying to do that, rewrite the code to not have all this
complexity in the data structures: use a single list and allow more
than one entry in it being marked as started. This makes the code a
bit more complex, the worker needs to understand that it might need
to just remove one of the started items, while keeping the device
off-channel, but that's not more complicated than the nested data
structures.

This then fixes both issues described, and makes it easier to also
limit the overall off-channel time when combining.

TODO: as before, with hardware remain-on-channel, deleting an item
after combining results in cancelling them all - we can keep track
of the time elapsed and only cancel after that to fix this.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211_hwsim: delay hardware remain-on-channel start
Johannes Berg [Tue, 24 Nov 2015 17:29:45 +0000 (18:29 +0100)]
mac80211_hwsim: delay hardware remain-on-channel start

Typically drivers that implement hardware remain-on-channel will
have to wait for scheduling constraints, so make hwsim also wait
a little bit (only 20ms) before actually starting the operation.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: simplify ack_skb handling
Johannes Berg [Tue, 24 Nov 2015 13:25:49 +0000 (14:25 +0100)]
mac80211: simplify ack_skb handling

Since the cookie is assigned inside ieee80211_make_ack_skb()
now, we no longer need to return the ack_skb as the cookie
and can simplify the function's return and the callers. Also
rename it to ieee80211_attach_ack_skb() to more accurately
reflect its purpose.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: move off-channel/mgmt-tx code to offchannel.c
Johannes Berg [Mon, 23 Nov 2015 16:18:35 +0000 (17:18 +0100)]
mac80211: move off-channel/mgmt-tx code to offchannel.c

This is quite a bit of code that logically depends here since
it has to deal with all the remain-on-channel logic.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: fix mgmt-tx abort cookie and leak
Johannes Berg [Tue, 24 Nov 2015 19:28:27 +0000 (20:28 +0100)]
mac80211: fix mgmt-tx abort cookie and leak

If a mgmt-tx operation is aborted before it runs, the wrong
cookie is reported back to userspace, and the ack_skb gets
leaked since the frame is freed directly instead of freeing
it using ieee80211_free_txskb(). Fix that.

Fixes: 3b79af973cf4 ("mac80211: stop using pointers as userspace cookies")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: catch queue stop underflow
Johannes Berg [Tue, 24 Nov 2015 14:29:53 +0000 (15:29 +0100)]
mac80211: catch queue stop underflow

If some code stops the queues more times than having started
(for when refcounting is used), warn on and reset the counter
to 0 to avoid blocking forever.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: properly free TX skbs when monitor TX fails
Johannes Berg [Tue, 24 Nov 2015 14:41:50 +0000 (15:41 +0100)]
mac80211: properly free TX skbs when monitor TX fails

We need to free all skbs here, not just the one we peeked
from the list.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: properly free skb when r-o-c for TX fails
Johannes Berg [Tue, 24 Nov 2015 14:38:43 +0000 (15:38 +0100)]
mac80211: properly free skb when r-o-c for TX fails

When freeing the TX skb for an off-channel TX, use the correct
API to also free the ACK skb that might have been allocated.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agoRevert "mac80211: don't advertise NL80211_FEATURE_FULL_AP_CLIENT_STATE"
Johannes Berg [Thu, 26 Nov 2015 15:26:14 +0000 (16:26 +0100)]
Revert "mac80211: don't advertise NL80211_FEATURE_FULL_AP_CLIENT_STATE"

This reverts commit 45bb780a2147b9995f3d288c44ecb87ca8a330e2,
the previous two patches fixed the functionality.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: handle add_station auth/assoc flag quirks
Johannes Berg [Thu, 26 Nov 2015 15:26:13 +0000 (16:26 +0100)]
cfg80211: handle add_station auth/assoc flag quirks

When a new station is added to AP/GO interfaces the default behaviour
is for it to be added authenticated and associated, due to backwards
compatibility. To prevent that, the driver must be able to do that
(setting the NL80211_FEATURE_FULL_AP_CLIENT_STATE feature flag) and
userspace must set the flag mask to auth|assoc and clear the set.

Handle this quirk in the API entirely in nl80211, and always push the
full flags to the drivers. NL80211_FEATURE_FULL_AP_CLIENT_STATE is
still required for userspace to be allowed to set the mask including
those bits, but after checking that add both flags to the mask and
set in case userspace didn't set them otherwise.

This obsoletes the mac80211 code handling this difference, no other
driver is currently using these flags.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: use NL80211_ATTR_STA_AID in nl82011_set_station
Ayala Beker [Thu, 26 Nov 2015 15:26:12 +0000 (16:26 +0100)]
cfg80211: use NL80211_ATTR_STA_AID in nl82011_set_station

Fix nl80211_set_station() to use the value of NL80211_ATTR_STA_AID
attribute instead of NL80211_ATTR_PEER_AID attribute.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: Add support for aborting an ongoing scan
Vidyullatha Kanchanapally [Fri, 30 Oct 2015 13:44:50 +0000 (19:14 +0530)]
mac80211: Add support for aborting an ongoing scan

This commit adds implementation for abort scan in mac80211.

Reviewed-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Vidyullatha Kanchanapally <vkanchan@qti.qualcomm.com>
Signed-off-by: Sunil Dutt <usdutt@qti.qualcomm.com>
[adjust to wdev change in previous patch and clean up code a bit]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: Add support for aborting an ongoing scan
Vidyullatha Kanchanapally [Fri, 30 Oct 2015 13:44:49 +0000 (19:14 +0530)]
cfg80211: Add support for aborting an ongoing scan

Implement new functionality for aborting an ongoing scan.

Add NL80211_CMD_ABORT_SCAN to the nl80211 interface. After
aborting the scan, driver shall provide the scan status by
calling cfg80211_scan_done().

Reviewed-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Vidyullatha Kanchanapally <vkanchan@qti.qualcomm.com>
Signed-off-by: Sunil Dutt <usdutt@qti.qualcomm.com>
[change command to take wdev instead of netdev so that it
 can be used on p2p-device scans]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: add new IEEE80211_VIF_GET_NOA_UPDATE flag
Janusz.Dziedzic@tieto.com [Tue, 27 Oct 2015 07:38:40 +0000 (08:38 +0100)]
mac80211: add new IEEE80211_VIF_GET_NOA_UPDATE flag

Add new VIF flag, that will allow get NOA update
notification when driver will request this, even
this is not pure P2P vif (eg. STA vif).

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211_hwsim: do not actively scan DFS channels
Johannes Berg [Thu, 26 Nov 2015 16:59:27 +0000 (17:59 +0100)]
mac80211_hwsim: do not actively scan DFS channels

We had another change to fix this in mac80211, but the hwsim
"hardware" scan should also be fixed. Obviously this one isn't
important since it's not real hardware, but we'd better be
consistent.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: Remove unused cfg80211_can_use_iftype_chan()
Michal Sojka [Mon, 23 Nov 2015 18:27:15 +0000 (19:27 +0100)]
cfg80211: Remove unused cfg80211_can_use_iftype_chan()

Last caller of this function was removed in 3.17 in commit
97dc94f1d933c9df2c0b327066ea130c0e92083f.

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: reg: Remove unused function parameter
Michal Sojka [Mon, 23 Nov 2015 18:27:14 +0000 (19:27 +0100)]
cfg80211: reg: Remove unused function parameter

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: add atomic uploaded keys iterator
Eliad Peller [Tue, 17 Nov 2015 08:24:37 +0000 (10:24 +0200)]
mac80211: add atomic uploaded keys iterator

add ieee80211_iter_keys_rcu() to iterate over uploaded
keys in atomic context (when rcu is locked)

The station removal code removes the keys only after
calling synchronize_net(), so it's not safe to iterate
the keys at this point (and postponing the actual key
deletion with call_rcu() might result in some
badly-ordered ops calls).

Add a flag to indicate a station is being removed,
and skip the configured keys if it's set.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: allow the driver to send EOSP when needed
Emmanuel Grumbach [Tue, 17 Nov 2015 08:24:36 +0000 (10:24 +0200)]
mac80211: allow the driver to send EOSP when needed

This can happen when the driver needs to send less frames
than expected and then needs to close the SP.
Mac80211 still needs to set the more_data properly based
on its buffer state (ps_tx_buffer and buffered frames on
other TIDs).
To that end, refactor the code that delivers frames upon
uAPSD trigger frames to be able to get only the more_data
bit without actually delivering those frames in case the
driver is just asking to set a NDP with EOSP and MORE_DATA
bit properly set.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: ocb: Fix null pointer deref if join_ocb is unimplemented
Ola Olsson [Mon, 9 Nov 2015 21:02:09 +0000 (22:02 +0100)]
cfg80211: ocb: Fix null pointer deref if join_ocb is unimplemented

Signed-off-by: Ola Olsson <ola.olsson@sonymobile.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agonl80211: clarify NL80211_ATTR_SCHED_SCAN_DELAY usage with net-detect
Luca Coelho [Mon, 9 Nov 2015 10:17:37 +0000 (12:17 +0200)]
nl80211: clarify NL80211_ATTR_SCHED_SCAN_DELAY usage with net-detect

In this attribute's documentation, it was not clear whether the delay
started counting when WoWLAN net-detect was enabled or when the system
was suspended.  The correct answer is that it starts when the system
suspends (which is when, in practice, the scan is scheduled).  Clarify
that in the nl80211.h documentation.

Suggested-by: Samuel Tan <samueltan@google.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: remove string from unaligned packet warning
Johannes Berg [Fri, 6 Nov 2015 11:34:24 +0000 (12:34 +0100)]
mac80211: remove string from unaligned packet warning

This really should never happen except very early in the process
of bringing up a new driver, at which point you'll have to add
more debugging in the driver and this string isn't useful. Remove
it and save some size (when it's even compiled in.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agolib80211: ratelimit key index mismatch
Johannes Berg [Fri, 6 Nov 2015 11:02:31 +0000 (12:02 +0100)]
lib80211: ratelimit key index mismatch

This indicates a driver key selection issue, but even then there's
no point in printing it all the time, so ratelimit it. Also remove
the priv pointer from it -- people debugging will only have a single
device anyway and it's useless as anything but a cookie.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: mesh: print MAC address instead of pointer
Johannes Berg [Fri, 6 Nov 2015 10:30:46 +0000 (11:30 +0100)]
mac80211: mesh: print MAC address instead of pointer

There's no point in printing the mpath pointer since it can't
be used for anything - print the MAC address instead (like in
the forwarding case.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: replace ieee80211_ie_split() with an inline
Johannes Berg [Fri, 23 Oct 2015 07:50:03 +0000 (09:50 +0200)]
cfg80211: replace ieee80211_ie_split() with an inline

The function is a very simple wrapper around another one,
just adds a few default parameters, so replace it with a
static inline instead of using EXPORT_SYMBOL, reducing
the module size slightly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: add complete data to station add/change tracing
Johannes Berg [Thu, 22 Oct 2015 19:27:47 +0000 (22:27 +0300)]
cfg80211: add complete data to station add/change tracing

Complete the tracepoint with the missing data - it's not printed
by default (a lot of it is dynamic arrays) but will be recorded
and be available during post-processing.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agocfg80211: Add missing tracing to cfg80211
Ilan Peer [Thu, 22 Oct 2015 19:27:46 +0000 (22:27 +0300)]
cfg80211: Add missing tracing to cfg80211

Add missing tracing for:

1. start_radar_detection()
2. set_mcast_rates()
3. set_coalesce()

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: allow driver to prevent two stations w/ same address
Johannes Berg [Thu, 22 Oct 2015 15:35:19 +0000 (17:35 +0200)]
mac80211: allow driver to prevent two stations w/ same address

Some devices or drivers cannot deal with having the same station
address for different virtual interfaces, say as a client to two
virtual AP interfaces. Rather than requiring each driver with a
limitation like that to enforce it, add a hardware flag for it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agoMerge remote-tracking branch 'mac80211/master' into HEAD
Johannes Berg [Fri, 4 Dec 2015 13:43:05 +0000 (14:43 +0100)]
Merge remote-tracking branch 'mac80211/master' into HEAD

I want to get the full off-channel bugfix since later code depends on
it, as well as the AP client state change so I can revert it correctly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: fix off-channel mgmt-tx uninitialized variable usage
Johannes Berg [Fri, 27 Nov 2015 20:59:41 +0000 (21:59 +0100)]
mac80211: fix off-channel mgmt-tx uninitialized variable usage

In the last change here, I neglected to update the cookie in one code
path: when a mgmt-tx has no real cookie sent to userspace as it doesn't
wait for a response, but is off-channel. The original code used the SKB
pointer as the cookie and always assigned the cookie to the TX SKB in
ieee80211_start_roc_work(), but my change turned this around and made
the code rely on a valid cookie being passed in.

Unfortunately, the off-channel no-wait TX path wasn't assigning one at
all, resulting in an uninitialized stack value being used. This wasn't
handed back to userspace as a cookie (since in the no-wait case there
isn't a cookie), but it was tested for non-zero to distinguish between
mgmt-tx and off-channel.

Fix this by assigning a dummy non-zero cookie unconditionally, and get
rid of a misleading comment and some dead code while at it. I'll clean
up the ACK SKB handling separately later.

Fixes: 3b79af973cf4 ("mac80211: stop using pointers as userspace cookies")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: do not actively scan DFS channels
Antonio Quartulli [Sat, 21 Nov 2015 10:13:40 +0000 (18:13 +0800)]
mac80211: do not actively scan DFS channels

DFS channels should not be actively scanned as we can't be sure
if we are allowed or not.

If the current channel is in the DFS band, active scan might be
performed after CSA, but we have no guarantee about other channels,
therefore it is safer to prevent active scanning at all.

Cc: stable@vger.kernel.org
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agomac80211: don't teardown sdata on sdata stop
Eliad Peller [Tue, 17 Nov 2015 08:24:40 +0000 (10:24 +0200)]
mac80211: don't teardown sdata on sdata stop

Interfaces are being initialized (setup) on addition,
and torn down on removal.

However, p2p device is being torn down when stopped,
resulting in the next p2p start operation being done
on uninitialized interface.

Solve it by calling ieee80211_teardown_sdata() only
on interface removal (for the non-netdev case).

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
[squashed in fix to call teardown after unregister]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agoMerge branch 'sh_eth-remove-obsolete-platform_ids'
David S. Miller [Tue, 24 Nov 2015 21:48:17 +0000 (16:48 -0500)]
Merge branch 'sh_eth-remove-obsolete-platform_ids'

Geert Uytterhoeven says:

====================
sh_eth: Remove obsolete platform_device_id entries

Since commit 3d7608e4c169af03 ("ARM: shmobile: bockw: remove legacy
board file and config"), which is in v4.4-rc1, shmobile SoCs are only
supported in generic DT-only ARM multi-platform builds.  The sh_eth
driver doesn't need to match platform devices by name anymore, hence
this series removes the corresponding platform_device_id entries.

Changes since v2:
  - More Acks,
  - Platform dependency has entered mainline,

Changes since v1:
  - Protect some data and functions by #ifdef CONFIG_OF to silence
    unused compiler warnings on SH,
  - New patches 3 and 4.

Thanks for applying!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agosh_eth: Remove obsolete r8a777x-ether platform_device_id entry
Geert Uytterhoeven [Tue, 24 Nov 2015 14:41:00 +0000 (15:41 +0100)]
sh_eth: Remove obsolete r8a777x-ether platform_device_id entry

Since commit 3d7608e4c169af03 ("ARM: shmobile: bockw: remove legacy
board file and config"), R-Car Gen1 SoCs are only supported in generic
DT-only ARM multi-platform builds.  The driver doesn't need to match
platform devices by name anymore, hence remove the corresponding
platform_device_id entry.

Protect sh_eth_set_rate_r8a777x() and r8a777x_data by #ifdef CONFIG_OF,
as they're now referenced on DT platforms only.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agosh_eth: Remove obsolete r8a7740-gether platform_device_id entry
Geert Uytterhoeven [Tue, 24 Nov 2015 14:40:59 +0000 (15:40 +0100)]
sh_eth: Remove obsolete r8a7740-gether platform_device_id entry

Since commit 1fa59bda21c7fa36 ("ARM: shmobile: Remove legacy board code
for Armadillo-800 EVA"), r8a7740 is only supported in generic DT-only
ARM multi-platform builds.  The driver doesn't need to match platform
devices by name anymore, hence remove the corresponding
platform_device_id entry.

Protect r8a7740_data by #ifdef CONFIG_OF as it's now referenced on DT
platforms only. Move it to a more logical position, in front of the
r8a777x support, so we can have a single #ifdef covering all r7s* and
r8a* support soon. This requires moving a few helper functions, too.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agosh_eth: Remove obsolete r8a779x-ether platform_device_id entries
Geert Uytterhoeven [Tue, 24 Nov 2015 14:40:58 +0000 (15:40 +0100)]
sh_eth: Remove obsolete r8a779x-ether platform_device_id entries

Since commit a483dcbfa21f919c ("ARM: shmobile: lager: Remove legacy
board support"), R-Car Gen2 SoCs are only supported in generic DT-only
ARM multi-platform builds.  The driver doesn't need to match platform
devices by name anymore, hence remove the corresponding
platform_device_id entry.

Protect r8a779x_data by #ifdef CONFIG_OF as it's now referenced on DT
platforms only.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agosh_eth: Remove obsolete r7s72100-ether platform_device_id entry
Geert Uytterhoeven [Tue, 24 Nov 2015 14:40:57 +0000 (15:40 +0100)]
sh_eth: Remove obsolete r7s72100-ether platform_device_id entry

Since commit 05104c266ae9a167 ("ARM: shmobile: r7s72100: genmai: Remove
legacy board file"), r7s72100 is only supported in generic DT-only ARM
multi-platform builds.  The driver doesn't need to match platform
devices by name anymore, hence remove the corresponding
platform_device_id entry.

Protect r7s72100_data by #ifdef CONFIG_OF as it's now referenced on DT
platforms only. Move it to a more logical position, in front of the
r8a777x support, so we can have a single #ifdef covering all r7s* and
r8a* support soon. This requires moving a helper function, too.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agovrf: remove slave queue and private slave struct
Nikolay Aleksandrov [Tue, 24 Nov 2015 13:29:16 +0000 (14:29 +0100)]
vrf: remove slave queue and private slave struct

The private slave queue and slave struct haven't been used for anything
and aren't needed, this allows to reduce memory usage and simplify
enslave/release. We can use netdev_for_each_lower_dev() to free the vrf
ports when deleting a vrf device. Also if in the future a private struct
is needed for each slave, it can be implemented via lower devices'
private member (similar to how bonding does it).

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
David S. Miller [Tue, 24 Nov 2015 21:22:40 +0000 (16:22 -0500)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2015-11-23

Here's the first bluetooth-next pull request for the 4.5 kernel.

 - Add new Get Advertising Size Information management command
 - Add support for new system note message type on monitor channel
 - Refactor LE scan changes behind separate workqueue to avoid races
 - Fix issue with privacy feature when powering on adapter
 - Various minor fixes & cleanups here and there

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: fec: no need to test for the return type of of_property_read_u32
Saurabh Sengar [Mon, 23 Nov 2015 13:51:48 +0000 (19:21 +0530)]
net: fec: no need to test for the return type of of_property_read_u32

in case of error no need to set num_tx and num_rx = 1, because in case of error
these variables will remain unchanged by of_property_read_u32 ie 1 only

Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agodrivers: net: xgene: optimizing the code
Saurabh Sengar [Mon, 23 Nov 2015 13:32:15 +0000 (19:02 +0530)]
drivers: net: xgene: optimizing the code

this patch does the following:
1 .  remove unnecessary if, else condition
2 .  reduce one variable
3 .  change the return type of 2 functions to void as there return values
turn out to be 0 always after above changes

Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge tag 'linux-can-next-for-4.5-20151123' of git://git.kernel.org/pub/scm/linux...
David S. Miller [Tue, 24 Nov 2015 19:22:27 +0000 (14:22 -0500)]
Merge tag 'linux-can-next-for-4.5-20151123' of git://git./linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2015-11-23

this is a pull request of a single patch for net-next/master.

The patch by Kedareswara rao Appana converts the xilinx CAN driver to
runtime_pm.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/ipv4/ipconfig: Rejoin broken lines in console output
Geert Uytterhoeven [Tue, 24 Nov 2015 13:08:23 +0000 (14:08 +0100)]
net/ipv4/ipconfig: Rejoin broken lines in console output

Commit 09605cc12c078306 ("net ipv4: use preferred log methods") replaced
a few calls of pr_cont() after a console print without a trailing
newline by pr_info(), causing lines to be split during IP
autoconfiguration, like:

    .
    ,
     OK
    IP-Config: Got DHCP answer from 192.168.97.254,
    my address is 192.168.97.44

Convert these back to using pr_cont(), so it prints again:

    ., OK
    IP-Config: Got DHCP answer from 192.168.97.254, my address is 192.168.97.44

Absorb the printing of "my address ..." into the previous call to
pr_info(), as there's no reason to use a continuation there.

Convert one more pr_info() to print nameservers while we're at it.

Fixes: 09605cc12c078306 ("net ipv4: use preferred log methods")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: dsa: include gpio consumer header file
Arnd Bergmann [Tue, 24 Nov 2015 11:34:49 +0000 (12:34 +0100)]
net: dsa: include gpio consumer header file

After the introduction of the switch gpio reset API, I'm getting
build errors in configurations that disable CONFIG_GPIOLIB:

net/dsa/dsa.c:783:16: error: implicit declaration of function 'gpio_to_desc' [-Werror=implicit-function-declaration]

The reason is that linux/gpio/consumer.h is not automatically
included without gpiolib support. This adds an explicit #include
statement to make it compile in all configurations. The reset
functionality will not work without gpiolib, which is what you
get when disabling the feature.

As far as I can tell, gpiolib is supported on all architectures
on which you can have DSA at the moment.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: cc30c16344fc ("net: dsa: Add support for a switch reset gpio")
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next...
David S. Miller [Tue, 24 Nov 2015 15:08:08 +0000 (10:08 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/next-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-11-23

This series contains updates to ixgbe, ixgbevf, fm10k, i40e and i40evf.

Jacob fixes an issue where VF could attempt to read queues it does not own,
so prevent this we check queue 0 before we continue.

Matthew fixes the MTU for jumbo frames for fm10k.

Julia Lawall cleans up a unneeded NULL test in ixgbe.

Mark cleans up a redundant header inclusion.  Adds KR mode support for
CS4227 chip.  Cleaned up diagnostic code, which is no longer needed, for
the CS4227 chip.

Jean Sacren fixes kernel documentation for ixgbe.

Alex Duyck fixes an fm10k and ixgbe issue in which the polling routine would
increase the budget for receive to at least 1 per queue if multiple queues were
present.  This would result in receive packets being processed when the budget
was 0 which is meant to indicate that no receive can be handled.  Also fixes
an ixgbevf performance issue where netperf test will starve for memory in the
time form one transmit interrupt to the next, so limit lowest interrupt rate
for adaptive interrupt moderation to 12K.  Fixed up ixgbe and ixgbevf to
use napi_schedule_irqoff() where the drivers were run from hard interrupt
context or with interrupts already disabled in netpoll.

Jesse fixes a compiler warning about an unused variable for i40evf.

John Greene fixes an issue with ixgbevf, where if the VF driver is loaded
while the corresponding PH interface is down, the driver assigns a random
MAC address, can be overwritten with the value of hw->mac.perm_addr which
is 0 at that point.  So avoid this case by initializing hw->mac.perm_addr
to the randomly generated address and do not set it unless we receive an
ACK from ixgbe.

Rasmus Villemoes cleans up some confusing code in i40e debugfs code.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoVSOCK: constify vmci_transport_notify_ops structures
Julia Lawall [Sat, 21 Nov 2015 17:39:17 +0000 (18:39 +0100)]
VSOCK: constify vmci_transport_notify_ops structures

The vmci_transport_notify_ops structures are never modified, so declare
them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: atm: constify in_cache_ops and eg_cache_ops structures
Julia Lawall [Sat, 21 Nov 2015 17:28:05 +0000 (18:28 +0100)]
net: atm: constify in_cache_ops and eg_cache_ops structures

The in_cache_ops and eg_cache_ops structures are never modified, so declare
them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'ipmr-cleanups'
David S. Miller [Mon, 23 Nov 2015 20:06:40 +0000 (15:06 -0500)]
Merge branch 'ipmr-cleanups'

Nikolay Aleksandrov says:

====================
net: ipmr: cleanups and minor improvements

Since I'll have to work with ipmr, I decided to clean it up and do some
minor improvements. Functionally there're almost no changes except the
SLAB_PANIC removal. Most of the patches just re-design some functions to
be clearer and more concise and try to remove the ifdef web that was
inside. There's more information in each commit. This is the first set,
the end goal is to introduce complete netlink support and control over
the mfc and vif devices.
I've tried to test all of the setsockopt/getsockopt options, and also
made builds with various ipmr kconfig options turned on and off.

v2: change patch 7 to keep SLAB_PANIC and just drop the unnecessary null
check
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: factor out common vif init code
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:32 +0000 (15:57 +0100)]
net: ipmr: factor out common vif init code

Factor out common vif init code used in both tunnel and pimreg
initialization and create ipmr_init_vif_indev() function.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: rearrange and cleanup setsockopt
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:31 +0000 (15:57 +0100)]
net: ipmr: rearrange and cleanup setsockopt

Take rtnl in the beginning unconditionally as most options already need
it (one exception - MRT_DONE, see the comment inside), make the
lock/unlock places central and move out the switch() local variables.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: drop ip_mr_init() mrt_cachep null check as we'll panic if it fails
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:30 +0000 (15:57 +0100)]
net: ipmr: drop ip_mr_init() mrt_cachep null check as we'll panic if it fails

It's not necessary to check for null as SLAB_PANIC is used and we'll
panic if the alloc fails, so just drop it.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: drop an instance of CONFIG_IP_MROUTE_MULTIPLE_TABLES
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:29 +0000 (15:57 +0100)]
net: ipmr: drop an instance of CONFIG_IP_MROUTE_MULTIPLE_TABLES

Trivial replace of ifdef with IS_BUILTIN().

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: make ip_mroute_getsockopt more understandable
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:28 +0000 (15:57 +0100)]
net: ipmr: make ip_mroute_getsockopt more understandable

Use a switch to determine if optname is correct and set val accordingly.
This produces a much more straight-forward and readable code.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: fix code and comment style
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:27 +0000 (15:57 +0100)]
net: ipmr: fix code and comment style

Trivial code and comment style fixes, also removed some extra newlines,
spaces and tabs.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: remove some pimsm ifdefs and simplify
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:26 +0000 (15:57 +0100)]
net: ipmr: remove some pimsm ifdefs and simplify

Add the helper pimsm_enabled() which replaces the old CONFIG_IP_PIMSM
define and is used to check if any version of PIM-SM has been enabled.
Use a single if defined(CONFIG_IP_PIMSM_V1) || defined(CONFIG_IP_PIMSM_V2)
for the pim-sm shared code. This is okay w.r.t IGMPMSG_WHOLEPKT because
only a VIFF_REGISTER device can send such packet, and it can't be
created if pimsm_enabled() is false.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: always define mroute_reg_vif_num
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:25 +0000 (15:57 +0100)]
net: ipmr: always define mroute_reg_vif_num

Before mroute_reg_vif_num was defined only if any of the CONFIG_PIMSM_
options were set, but that's not really necessary as the size of the
struct is the same in both cases (checked with pahole, both cases size
is 3256 bytes) and we can remove some unnecessary ifdefs to simplify the
code.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: ipmr: move the tbl id check in ipmr_new_table
Nikolay Aleksandrov [Sat, 21 Nov 2015 14:57:24 +0000 (15:57 +0100)]
net: ipmr: move the tbl id check in ipmr_new_table

Move the table id check in ipmr_new_table and make it return error
pointer. We need this change for the upcoming netlink table manipulation
support in order to avoid code duplication and a race condition.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agointel: i40e: fix confused code
Rasmus Villemoes [Sat, 17 Oct 2015 20:58:19 +0000 (22:58 +0200)]
intel: i40e: fix confused code

This code is pretty confused. The variable name 'bytes_not_copied'
clearly indicates that the programmer knew the semantics of
copy_{to,from}_user, but then the return value is checked for being
negative and used as a -Exxx return value.

I'm not sure this is the proper fix, but at least we get rid of the
dead code which pretended to check for access faults.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbevf: fix spoofed packets with random MAC
Emil Tantilov [Mon, 12 Oct 2015 17:56:00 +0000 (10:56 -0700)]
ixgbevf: fix spoofed packets with random MAC

If ixgbevf is loaded while the corresponding PF interface is down
and the driver assigns a random MAC address, that address can be
overwritten with the value of hw->mac.perm_addr, which would be 0 at
that point.

To avoid this case we init hw->mac.perm_addr to the randomly generated
address and do not set it unless we receive ACK from ixgbe.

Reported-by: John Greene <jogreene@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbevf: use ether_addr_copy instead of memcpy
Emil Tantilov [Mon, 12 Oct 2015 17:55:51 +0000 (10:55 -0700)]
ixgbevf: use ether_addr_copy instead of memcpy

replace some instances of memcpy for setting up the mac address with
ether_addr_copy()

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoi40evf: fix compiler warning of unused variable
Jesse Brandeburg [Sun, 4 Oct 2015 08:09:49 +0000 (01:09 -0700)]
i40evf: fix compiler warning of unused variable

Compiler complained of an unused variable, which the driver was just
using to store the result of a rd32 which is used to clear a register
unconditionally.  Just drop the unused variable and re-use one.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbe: Remove CS4227 diagnostic code
Mark Rustad [Fri, 2 Oct 2015 16:23:53 +0000 (09:23 -0700)]
ixgbe: Remove CS4227 diagnostic code

Testing has now shown that the diagnostic code used with the CS4227
is no longer needed, so remove it.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbe/ixgbevf: use napi_schedule_irqoff()
Alexander Duyck [Tue, 29 Sep 2015 22:19:43 +0000 (15:19 -0700)]
ixgbe/ixgbevf: use napi_schedule_irqoff()

The ixgbe_intr and ixgbe/ixgbevf_msix_clean_rings functions run from hard
interrupt context or with interrupts already disabled in netpoll.

They can use napi_schedule_irqoff() instead of napi_schedule()

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbevf: Limit lowest interrupt rate for adaptive interrupt moderation to 12K
Alexander Duyck [Tue, 29 Sep 2015 20:11:15 +0000 (13:11 -0700)]
ixgbevf: Limit lowest interrupt rate for adaptive interrupt moderation to 12K

This patch is the ixgbevf version of commit 8ac34f10a5ea4 "ixgbe: Limit
lowest interrupt rate for adaptive interrupt moderation to 12K"

The same logic applies here as well as the same results since a netperf
test will starve for memory in the time from one Tx interrupt to the next.
As a result the ixgbevf driver underperformed when compared to vhost_net.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbe: Add KR mode support for CS4227 chip
Mark Rustad [Mon, 28 Sep 2015 21:37:47 +0000 (14:37 -0700)]
ixgbe: Add KR mode support for CS4227 chip

KR auto-neg mode is what we will be using going forward. The SW
interface for this mode is different that what was used for iXFI.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbe: Fix handling of NAPI budget when multiple queues are enabled per vector
Alexander Duyck [Tue, 22 Sep 2015 21:35:41 +0000 (14:35 -0700)]
ixgbe: Fix handling of NAPI budget when multiple queues are enabled per vector

This patch corrects an issue in which the polling routine would increase
the budget for Rx to at least 1 per queue if multiple queues were present.
This would result in Rx packets being processed when the budget was 0 which
is meant to indicate that no Rx can be handled.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agofm10k: Fix handling of NAPI budget when multiple queues are enabled per vector
Alexander Duyck [Tue, 22 Sep 2015 21:35:35 +0000 (14:35 -0700)]
fm10k: Fix handling of NAPI budget when multiple queues are enabled per vector

This patch corrects an issue in which the polling routine would increase
the budget for Rx to at least 1 per queue if multiple queues were present.
This would result in Rx packets being processed when the budget was 0 which
is meant to indicate that no Rx can be handled.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbe: fix multiple kernel-doc errors
Jean Sacren [Sat, 19 Sep 2015 11:08:44 +0000 (05:08 -0600)]
ixgbe: fix multiple kernel-doc errors

The commit dfaf891dd3e1 ("ixgbe: Refactor the RSS configuration code")
introduced a few kernel-doc errors:

1) The function name is missing;
2) The format is wrong;
3) The short description is redundant.

Fix all the above for the correct execution of the kernel doc.

Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbe: Delete redundant include file
Mark Rustad [Fri, 18 Sep 2015 17:08:00 +0000 (10:08 -0700)]
ixgbe: Delete redundant include file

Delete a redundant include of net/vxlan.h.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoixgbe: drop null test before destroy functions
Julia Lawall [Sun, 13 Sep 2015 12:15:13 +0000 (14:15 +0200)]
ixgbe: drop null test before destroy functions

Remove unneeded NULL test.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@ expression x; @@
-if (x != NULL)
  \(kmem_cache_destroy\|mempool_destroy\|dma_pool_destroy\)(x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agofm10k: Correct MTU for jumbo frames
Jacob Keller [Tue, 25 Aug 2015 20:49:11 +0000 (13:49 -0700)]
fm10k: Correct MTU for jumbo frames

Based on hardware testing, the host interface supports up to 15368 bytes
as the maximum frame size. To determine the correct MTU, we subtract 8
for the internal switch tag, 14 for the L2 header, and 4 for the
appended FCS header, resulting in 15342 bytes of payload for our maximum
MTU on jumbo frames.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agofm10k: do not assume VF always has 1 queue
Jacob Keller [Tue, 25 Aug 2015 00:27:24 +0000 (17:27 -0700)]
fm10k: do not assume VF always has 1 queue

It is possible that the PF has not yet assigned resources to the VF.
Although rare, this could result in the VF attempting to read queues it
does not own and result in FUM or THI faults in the PF. To prevent this,
check queue 0 before we continue in init_hw_vf.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoMerge branch 'rhashtable-test-enhancements'
David S. Miller [Mon, 23 Nov 2015 17:36:09 +0000 (12:36 -0500)]
Merge branch 'rhashtable-test-enhancements'

Phil Sutter says:

====================
improve fault-tolerance of rhashtable runtime-test

The following series aims to improve lib/test_rhashtable in different
situations:

Patch 1 allows the kernel to reschedule so the test does not block too
        long on slow systems.
Patch 2 fixes behaviour under pressure, retrying inserts in non-permanent
        error case (-EBUSY).
Patch 3 auto-adjusts the upper table size limit according to the number
        of threads (in concurrency test). In fact, the current default is
already too small.
Patch 4 makes it possible to retry inserts even in supposedly permanent
        error case (-ENOMEM) to expose rhashtable's remaining problem of
-ENOMEM being not as permanent as it is expected to be.

Changes since v1:
- Introduce insert_retry() which is then used in single-threaded test as
  well.
- Do not retry inserts by default if -ENOMEM was returned.
- Rename the retry counter to be a bit more verbose about what it
  contains.
- Add patch 4 as a debugging aid.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agorhashtable-test: allow to retry even if -ENOMEM was returned
Phil Sutter [Fri, 20 Nov 2015 17:17:20 +0000 (18:17 +0100)]
rhashtable-test: allow to retry even if -ENOMEM was returned

This is rather a hack to expose the current issue with rhashtable to
under high pressure sometimes return -ENOMEM even though system memory
is not exhausted and a consecutive insert may succeed.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agorhashtable-test: calculate max_entries value by default
Phil Sutter [Fri, 20 Nov 2015 17:17:19 +0000 (18:17 +0100)]
rhashtable-test: calculate max_entries value by default

A maximum table size of 64k entries is insufficient for the multiple
threads test even in default configuration (10 threads * 50000 objects =
500000 objects in total). Since we know how many objects will be
inserted, calculate the max size unless overridden by parameter.

Note that specifying the exact number of objects upon table init won't
suffice as that value is being rounded down to the next power of two -
anticipate this by rounding up to the next power of two in beforehand.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agorhashtable-test: retry insert operations
Phil Sutter [Fri, 20 Nov 2015 17:17:18 +0000 (18:17 +0100)]
rhashtable-test: retry insert operations

After adding cond_resched() calls to threadfunc(), a surprisingly high
rate of insert failures occurred probably due to table resizes getting a
better chance to run in background. To not soften up the remaining
tests, retry inserts until they either succeed or fail permanently.

Also change the non-threaded test to retry insert operations, too.

Suggested-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agorhashtable-test: add cond_resched() to thread test
Phil Sutter [Fri, 20 Nov 2015 17:17:17 +0000 (18:17 +0100)]
rhashtable-test: add cond_resched() to thread test

This should fix for soft lockup bugs triggered on slow systems.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'dsa-gpio-reset'
David S. Miller [Mon, 23 Nov 2015 16:53:11 +0000 (11:53 -0500)]
Merge branch 'dsa-gpio-reset'

Andrew Lunn says:

====================
DSA: GPIO to reset switches

These two patches add support for using a GPIO to hard reset a switch
during reset.

v2:

Thanks to a clue from Neil Armstrong, i figured out how to convert the
gpio into a gpiod, while keeping the ACTIVE_LOW flag, so simplifiying
the set/reset code.

I have not included the Tested-by: from Phil Reid, since i made a lot
of changes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agodsa: mv88e6xxx.c: Hardware reset the chip if available
Andrew Lunn [Fri, 20 Nov 2015 02:56:24 +0000 (03:56 +0100)]
dsa: mv88e6xxx.c: Hardware reset the chip if available

The device tree binding now allows a gpio to be specified which is
attached to the switch chips reset line. If it is defined, perform
a hardware reset on the switch during setup.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: dsa: Add support for a switch reset gpio
Andrew Lunn [Fri, 20 Nov 2015 02:56:23 +0000 (03:56 +0100)]
net: dsa: Add support for a switch reset gpio

Some boards have a gpio line tied to the switch reset pin. Allow this
gpio to be retrieved from the device tree, and take the switch out of
reset before performing the probe.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoBluetooth: Increment management interface revision
Johan Hedberg [Mon, 23 Nov 2015 13:07:51 +0000 (15:07 +0200)]
Bluetooth: Increment management interface revision

This patch increments the management interface revision due to
introduction of a new Get Advertising Size Information command and
various other fixes & improvements.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Fix powering on with privacy and advertising
Andrzej Kaczmarek [Sun, 22 Nov 2015 20:42:21 +0000 (21:42 +0100)]
Bluetooth: Fix powering on with privacy and advertising

In order to enable advertising with privacy enabled, SMP has to be
registered in order to generate new RPA. During power on, it will be
registered at the very end which is the reason why advertising is not
enabled and it's not possible to enable it anymore due to mismatch
between hci_dev settings and actual controller state.

This fixes this problem by moving SMP registration earlier, just after
controller is powered (which is ok, because LE SMP will be already able
to decide on identity address to be used), but before advertising is
enabled.

Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agoBluetooth: Fix returning proper HCI status from __hci_req_sync
Johan Hedberg [Mon, 23 Nov 2015 12:40:47 +0000 (14:40 +0200)]
Bluetooth: Fix returning proper HCI status from __hci_req_sync

There were a couple of code paths missed by the previous patch that
added a HCI status return parameter to __hci_req_sync. This patch adds
the missing assignments for them.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
9 years agocan: xilinx: Convert to runtime_pm
Kedareswara rao Appana [Mon, 26 Oct 2015 06:11:54 +0000 (11:41 +0530)]
can: xilinx: Convert to runtime_pm

Instead of enabling/disabling clocks at several locations in the driver,
Use the runtime_pm framework. This consolidates the actions for runtime PM
In the appropriate callbacks and makes the driver more readable and mantainable.

Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
9 years agogianfar: use of_property_read_bool()
Saurabh Sengar [Fri, 20 Nov 2015 17:53:58 +0000 (23:23 +0530)]
gianfar: use of_property_read_bool()

use of_property_read_bool() for testing bool property

Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agobnx2x: Utilize FW 7.13.1.0.
Yuval Mintz [Sun, 22 Nov 2015 13:01:29 +0000 (15:01 +0200)]
bnx2x: Utilize FW 7.13.1.0.

Commit 46e8a249423ff "bnx2x: Add FW 7.13.1.0" added said .bin FW to
linux-firmware; This patch incorporates the FW in the bnx2x driver.

This introduces 2 fixes/enhancements:
 - In some management protocols there are outer-vlan configurations
that can be dynamically changed while device is running. This fixes
some corner cases where such a change did not take effect.

 - Prevent VFs from sending MAC control frames; FW would treat a VF
sending such a packet as malicious and block any further communication
done by the VF.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: IPv6 fib lookup tracepoint
David Ahern [Thu, 19 Nov 2015 20:24:22 +0000 (12:24 -0800)]
net: IPv6 fib lookup tracepoint

Add tracepoint to show fib6 table lookups and result.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoBluetooth: Add support for Get Advertising Size Information command
Marcel Holtmann [Thu, 19 Nov 2015 15:16:43 +0000 (16:16 +0100)]
Bluetooth: Add support for Get Advertising Size Information command

The Get Advertising Size Information command allows to retrieve size
information for advertising data and scan response data fields depending
on the selected flags. This is useful if applications want to know the
available size ahead of time.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
9 years agoBluetooth: Simplify if statements in tlv_data_is_valid function
Marcel Holtmann [Thu, 19 Nov 2015 15:16:42 +0000 (16:16 +0100)]
Bluetooth: Simplify if statements in tlv_data_is_valid function

The if statements for checking the flags parameter could be written a
bit easier to read. This changes this. No functional behavior has been
changed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
9 years agoBluetooth: Add instance range check for Add Advertising command
Marcel Holtmann [Thu, 19 Nov 2015 15:16:41 +0000 (16:16 +0100)]
Bluetooth: Add instance range check for Add Advertising command

The instance range check for Add Advertising command is missing. If the
provided instance is out of range an Invalid Parameters error should be
returned. At the moment, the generic Failed error is returned. This
extra check ensures that clear error messages are returned.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
9 years agonet: avoid NULL deref in napi_get_frags()
Eric Dumazet [Thu, 19 Nov 2015 20:11:23 +0000 (12:11 -0800)]
net: avoid NULL deref in napi_get_frags()

napi_alloc_skb() can return NULL.
We should not crash should this happen.

Fixes: 93f93a440415 ("net: move skb_mark_napi_id() into core networking stack")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>