14 Dec, 2012
1 commit
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Pull trivial branch from Jiri Kosina:
"Usual stuff -- comment/printk typo fixes, documentation updates, dead
code elimination."* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits)
HOWTO: fix double words typo
x86 mtrr: fix comment typo in mtrr_bp_init
propagate name change to comments in kernel source
doc: Update the name of profiling based on sysfs
treewide: Fix typos in various drivers
treewide: Fix typos in various Kconfig
wireless: mwifiex: Fix typo in wireless/mwifiex driver
messages: i2o: Fix typo in messages/i2o
scripts/kernel-doc: check that non-void fcts describe their return value
Kernel-doc: Convention: Use a "Return" section to describe return values
radeon: Fix typo and copy/paste error in comments
doc: Remove unnecessary declarations from Documentation/accounting/getdelays.c
various: Fix spelling of "asynchronous" in comments.
Fix misspellings of "whether" in comments.
eisa: Fix spelling of "asynchronous".
various: Fix spelling of "registered" in comments.
doc: fix quite a few typos within Documentation
target: iscsi: fix comment typos in target/iscsi drivers
treewide: fix typo of "suport" in various comments and Kconfig
treewide: fix typo of "suppport" in various comments
...
12 Dec, 2012
3 commits
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…wireless-next into for-davem
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This patch removes the redundant occurences of simple_strto
Signed-off-by: Abhijit Pawar
Signed-off-by: David S. Miller
11 Dec, 2012
3 commits
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Instead of updating stats before sending a packet,
update them after processing the packet's status.
This makes minstrel in line with minstrel_ht.Signed-off-by: Johannes Berg
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Signed-off-by: Johannes Berg
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This patch replace the obsolete simple_strto with kstrto
Signed-off-by: Abhijit Pawar
Acked-by: Neil Horman
Signed-off-by: David S. Miller
07 Dec, 2012
3 commits
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New drivers that might not support ampdu_action yet while in
development cause a lot of warnings, use WARN_ON_ONCE instead.Signed-off-by: T Krushna Chaitanya
Signed-off-by: Johannes Berg -
Conflicts:
drivers/net/wireless/mwifiex/sta_ioctl.c
net/mac80211/scan.c -
This is an NFC LLCP fix for 3.7 and contains only one patch.
It fixes a potential crash when receiving an LLCP HDLC frame acking a frame
that is not the last sent one. In that case we may dereference an already
freed pointer.
06 Dec, 2012
2 commits
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If the sdata work is pending while the interface is stopped,
we currently flush it. If it's not running this means waiting
for it to run, which could take a while if the workqueue is
backlogged. However, the work exits right away if it starts
to run while the interface is already stopping. There's no
point in waiting for that, so use cancel_work_sync() instead.Reported-by: Ben Greear
Tested-by: Ben Greear
Signed-off-by: Johannes Berg -
Previously, mesh peering frames from a STA without a station
entry were being dropped.Mesh Peering Open and other frames (WLAN_CATEGORY_SELF_PROTECTED)
are valid mesh peering frames even if received from a yet unknown
station; the STA entry will be created in mesh_peer_init later.The problem didn't occur previously since both STAs receive each
other's beacons which created the STA entry. However, this causes
an unnecessary delay and beacons might not be received if either
node is in PS mode.Signed-off-by: Marco Porsch
[reword commit log a bit]
Signed-off-by: Johannes Berg
05 Dec, 2012
3 commits
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The radiotap header length "needed_headroom" is only required if we're
sending the skb to a monitor interface. Hence, move the calculation a
bit later so the calculation can be skipped if no monitor interface is
present.Signed-off-by: Helmut Schaa
Signed-off-by: Johannes Berg -
Commit f0425beda4d404a6e751439b562100b902ba9c98 "mac80211: retry sending
failed BAR frames later instead of tearing down aggr" caused regression
on rt2x00 hardware (connection hangs). This regression was fixed by
commit be03d4a45c09ee5100d3aaaedd087f19bc20d01 "rt2x00: Don't let
mac80211 send a BAR when an AMPDU subframe fails". But the latter
commit caused yet another problem reported in
https://bugzilla.kernel.org/show_bug.cgi?id=42828#c22After long discussion in this thread:
http://mid.gmane.org/20121018075615.GA18212@redhat.com
and testing various alternative solutions, which failed on one or other
setup, we have no other good fix for the issues like just revert both
mentioned earlier commits.To do not affect other hardware which benefit from commit
f0425beda4d404a6e751439b562100b902ba9c98, instead of reverting it,
introduce flag that when used will restore mac80211 behaviour before
the commit.Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka
[replaced link with mid.gmane.org that has message-id]
Signed-off-by: Johannes Berg -
The mic failure count provides the number of mic failures that
have happened on a given key (without a countermeasure being
started, since that would remove the key).Signed-off-by: Saravana
[fix NULL pointer issues]
Signed-off-by: Johannes Berg
04 Dec, 2012
1 commit
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In 5GHz/802.11a, we are allowed to use short slot times. Doing this
may increases performance by 20% for legacy connections (54 MBit/s).
I can confirm this in my tests (27% more throughput using iperf), and
also have a small positive effect (5% more throughput) for HT rates,
tested on 1 stream.Signed-off-by: Simon Wunderlich
Signed-off-by: Mathias Kretschmer
Signed-off-by: Johannes Berg
03 Dec, 2012
1 commit
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If channel contexts are enabled, the CSA should not be processed
further. A return is missing here.Signed-off-by: Simon Wunderlich
Signed-off-by: Johannes Berg
30 Nov, 2012
6 commits
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Signed-off-by: Johannes Berg
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When a BSS struct is updated, the IEs are currently
overwritten or freed. This can lead to races if some
other CPU is accessing the BSS struct and using the
IEs concurrently.Fix this by always allocating the IEs in a new struct
that holds the data and length and protecting access
to this new struct with RCU.Signed-off-by: Johannes Berg
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Instead of allocating a temporary buffer to build IEs
build them right into the SKB.Signed-off-by: Johannes Berg
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Instead of assuming 200 bytes are always enough for
all the IEs we add, give the length of the buffer
to the function and warn instead of overrunning.Signed-off-by: Johannes Berg
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This change allows userspace to register for probe request
frames on an IBSS interface. Userspace then has to handle
them and send replies.Signed-off-by: Antonio Quartulli
Signed-off-by: Johannes Berg -
Currently the mesh sync code checks, whether peers indicate TBTT adjustment,
but it never sets the corresponding flag itself.By setting ifmsh->tbtt_adjusting to true, it will set the corresponding field
in the mesh configuration IE of own beacons.
This indication will be set in the current beacon. The TBTT adjustment will be
performed afterwards, affecting the next beacon. Thus, the first beacon with
stable TBTT will not indicate adjustment anymore and peers will continue
tracking the new offset.Signed-off-by: Marco Porsch
Signed-off-by: Johannes Berg
29 Nov, 2012
4 commits
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Add a debugfs file showing the rate at which
the last packet is received.Signed-off-by: Saravana
[fix whitespace]
Signed-off-by: Johannes Berg -
Currently the logic to fill a struct rate_info with
a STA's last RX rate is accessible only in the cfg.c.
As the RX rate calculation might be needed elsewhere,
split this out into a separate function.Signed-off-by: Saravana
[fix various whitespace issues, reword commit log]
Signed-off-by: Johannes Berg -
Add a debugfs file showing the current tx rate.
The information available in the rc_stats file
doesn't evidently provides us the current tx rate.
This patch adds the support for the same.Signed-off-by: Saravana
Signed-off-by: Johannes Berg -
Add a debugfs file showing the signal strength
of the ack frame that is received for the
currently sent tx packetSigned-off-by: Saravana
Signed-off-by: Johannes Berg
28 Nov, 2012
3 commits
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This fixes some unintended resets of the rate control statistics
when minstrel_ht is used resulting in non-optimal throughput on mesh
links.Tested-by: Emanuel Taube
Signed-off-by: Helmut Schaa
Signed-off-by: Johannes Berg -
If a driver registers an address mask we should ensure that no
interface gets an address assigned that isn't covered by the
registered address mask. This prevents invalid configurations
from reaching the device and causing problems.Signed-off-by: Helmut Schaa
[change function flow to reduce indentation, fix locking]
Signed-off-by: Johannes Berg -
Smatch complains that we could dereference skb later in the function.
It's probably unlikely, but we may as well return here and avoid it.Signed-off-by: Dan Carpenter
[change summary]
Signed-off-by: Johannes Berg
27 Nov, 2012
5 commits
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If the low-level driver wants to support P2P GO
powersave configuration, it must set the cfg80211
flags and mac80211 will pass the parameters to it.Signed-off-by: Johannes Berg
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Add some information that we have about VHT to radiotap.
This at least lets one see the MCS and NSS information.Signed-off-by: Johannes Berg
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Determine the VHT channel from the AP's VHT operation IE
(if present) and configure the hardware to that channel
if it is supported. If channel contexts cause a channel
to not be usable, try a smaller bandwidth.Signed-off-by: Johannes Berg
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Felix Liao reported that when an interface is set DOWN
while another interface is executing a ROC, the warning
in ieee80211_start_next_roc() (about the first item on
the list having started already) triggers.This is because ieee80211_roc_purge() calls it even if
it never actually changed the list of ROC items. To fix
this, simply remove the function call. If it is needed
then it will be done by the ieee80211_sw_roc_work()
function when the ROC item that is being removed while
active is cleaned up.Cc: stable@vger.kernel.org
Reported-by: Felix Liao
Signed-off-by: Johannes Berg
Signed-off-by: John W. Linville
26 Nov, 2012
5 commits
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To achieve this, limit the number of retries to
31 (instead of 255) and use the three bits that
are then free for VHT flags.Signed-off-by: Johannes Berg
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Add support to mac80211 for having drivers report
received VHT MCS information.Signed-off-by: Johannes Berg
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Convert mac80211 (and where necessary, some drivers a
little bit) to the new channel definition struct.This will allow extending mac80211 for VHT, which is
currently restricted to channel contexts since there
are no drivers using that which makes it easier. As
I also don't care about VHT for drivers not using the
channel context API, I won't convert the previous API
to VHT support.Signed-off-by: Johannes Berg
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Change nl80211 to support specifying a VHT (or HT)
using the control channel frequency (as before) and
new attributes for the channel width and first and
second center frequency. The old channel type is of
course still supported for HT.Also change the cfg80211 channel definition struct
to support these by adding the relevant fields to
it (and removing the _type field.)This also adds new helper functions:
- cfg80211_chandef_create to create a channel def
struct given the control channel and channel type,
- cfg80211_chandef_identical to check if two channel
definitions are identical
- cfg80211_chandef_compatible to check if the given
channel definitions are compatible, and return the
wider of the twoThis isn't entirely complete, but that doesn't matter
until we have a driver using it. In particular, it's
missing
- regulatory checks on the usable bandwidth (if that
even makes sense)
- regulatory TX power (database can't deal with it)
- a proper channel compatibility calculation for the
new channel typesSigned-off-by: Johannes Berg
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Instead of passing a channel pointer and channel type
to all functions and driver methods, pass a new channel
definition struct. Right now, this struct contains just
the control channel and channel type, but for VHT this
will change.Also, add a small inline cfg80211_get_chandef_type() so
that drivers don't need to use the _type field of the
new structure all the time, which will change.Signed-off-by: Johannes Berg