| Commit message (Collapse) | Author | Age | Files | Lines |
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The regdom intersection code simply tries intersecting
each rule of the source with each rule of the target.
Since the resulting intersections are not observed
as a whole, this can result in multiple overlapping/duplicate
entries.
Make the rule addition a bit more smarter, by looking
for rules that can be contained within other rules,
and adding only extended ones.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Our legal structure changed at some point (see wikipedia), but
we forgot to immediately switch over to the new copyright
notice.
For files that we have modified in the time since the change,
add the proper copyright notice now.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This reverts commit 8eca1fb692cc9557f386eddce75c300a3855d11a.
Felix notes that this broke regulatory, leaving channel 12 open for AP
operation in the US regulatory domain where it isn't permitted.
Link: http://mid.gmane.org/53A6C0FF.9090104@openwrt.org
Reported-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Otherwise every "indoor" setting by usermode will cause a regdomain reset.
Acked-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Current code checks if the 20MHz bandwidth is allowed for
particular channel -- if it is not, the channel is disabled.
Since we need to use 5/10 MHz channels, this code is modified in
the way that the default bandwidth to check is 5MHz. If the
maximum bandwidth allowed by the channel is smaller than 5MHz,
the channel is disabled. Otherwise the channel is used and the
flags are set according to the bandwidth allowed by the channel.
Signed-off-by: Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This allows processing of the last regulatory request when
we determine its still pending. Without this if a regulatory
request failed to get processed by userspace we wouldn't
be able to re-process it later. An example situation that can
lead to an unprocessed last_request is enabling cfg80211 to
be built-in to the kernel, not enabling CFG80211_INTERNAL_REGDB
and the CRDA binary not being available at the time the udev
rule that kicks of CRDA triggers.
In such a situation we want to let some cfg80211 triggers
eventually kick CRDA for us again. Without this if the first
cycle attempt to kick off CRDA failed we'd be stuck without
the ability to change process any further regulatory domains.
cfg80211 will trigger re-processing of the regulatory queue
whenever schedule_work(®_work) is called, currently this
happens when:
* suspend / resume
* disconnect
* a beacon hint gets triggered (non DFS 5 GHz AP found)
* a regulatory request gets added to the queue
We don't have any specific opportunistic late boot triggers
to address a late mount of where CRDA resides though, adding
that should be done separately through another patch.
Without an opportunistic fix then this fix relies at least
one of the triggeres above to happen.
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Avoid freeing the last request while it is being processed. This can
happen in some cases if reg_work is kicked for some reason while the
currently pending request is in flight.
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Tested-by: Eliad Peller <eliad@wizery.com>
Tested-by: Colleen Twitty <colleen@cozybit.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Set DFS CAC time also in case of using custom
and strict regulatory from drivers. In other case
we could have unset DFS CAC time directly after
driver loaded and before issue regulatory set from
user mode.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Allow GO operation on a channel marked with IEEE80211_CHAN_INDOOR_ONLY
iff there is a user hint indicating that the platform is operating in
an indoor environment, i.e., the platform is a printer or media center
device.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add the option to hint the wireless core that it is operating in an indoor
environment.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Allow GO operation on a channel marked with IEEE80211_CHAN_GO_CONCURRENT
iff there is an active station interface that is associated to
an AP operating on the same channel in the 2 GHz band or the same UNII band
(in the 5 GHz band). This relaxation is not allowed if the channel is
marked with IEEE80211_CHAN_RADAR.
Note that this is a permissive approach to the FCC definitions,
that require a clear assessment that the device operating the AP is
an authorized master, i.e., with radar detection and DFS capabilities.
It is assumed that such restrictions are enforced by user space.
Furthermore, it is assumed, that if the conditions that allowed for
the operation of the GO on such a channel change, i.e., the station
interface disconnected from the AP, it is the responsibility of user
space to evacuate the GO from the channel.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Move the regulatory cellular base station hints support under
a specific configuration option and make the option depend
on CFG80211_CERTIFICATION_ONUS.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The FCC are clarifying some soft configuration requirements,
which among other include the following:
1. Indoor operation, where a device can use channels requiring indoor
operation, subject to that it can guarantee indoor operation,
i.e., the device is connected to AC Power or the device is under
the control of a local master that is acting as an AP and is
connected to AC Power.
2. Concurrent GO operation, where devices may instantiate a P2P GO
while they are under the guidance of an authorized master. For example,
on a channel on which a BSS is connected to an authorized master, i.e.,
with DFS and radar detection capability in the UNII band.
See https://apps.fcc.gov/eas/comments/GetPublishedDocument.html?id=327&tn=528122
Add support for advertising Indoor-only and GO-Concurrent channel
properties.
Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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rcu_assign_pointer() ensures that the initialization of a structure is
carried out before storing a pointer to that structure. However, in the
case that NULL is assigned there's no structure to initialize so using
RCU_INIT_POINTER instead is safe and more efficient.
Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
[rewrite commit log]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
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In certain situations we want to trigger reprocessing
of the last regulatory hint. One situation in which
this makes sense is the case where the cfg80211 was
built-in to the kernel, CFG80211_INTERNAL_REGDB was not
enabled and the CRDA binary is on a partition not availble
during early boot. In such a case we want to be able to
re-process the same request at some other point.
When we are asked to re-process the same request we need
to be careful to not kfree it, addresses that.
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[rename function]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Introduce DFS CAC time as a regd param, configured per REG_RULE and
set per channel in cfg80211. DFS CAC time is close connected with
regulatory database configuration. Instead of using hardcoded values,
get DFS CAC time form regulatory database. Pass DFS CAC time to user
mode (mainly for iw reg get, iw list, iw info). Allow setting DFS CAC
time via CRDA. Add support for internal regulatory database.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
[rewrap commit log]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Allow to set world regulatory domain in case of user
request (iw reg set 00).
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There's no need for the struct device_type with the uevent function
etc., just fill the country alpha2 when sending the event.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
drivers/net/wireless/ath/ath9k/recv.c
drivers/net/wireless/mwifiex/pcie.c
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Reset regdomain to world regdomain in case
of errors in set_regdom() function.
This will fix a problem with such scenario:
- iw reg set US
- iw reg set 00
- iw reg set US
The last step always fail and we get deadlock
in kernel regulatory code. Next setting new
regulatory wasn't possible due to:
Pending regulatory request, waiting for it to be processed...
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Acked-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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After processing hint_user, we would want to schedule the
timeout work only if we are actually waiting to CRDA. This happens
when the status is not "IGNORE" nor "ALREADY_SET".
Signed-off-by: Inbal Hacohen <Inbal.Hacohen@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Introduce NL80211_RRF_AUTO_BW rule flag. If this flag set
maximum available bandwidth should be calculated base on
contiguous rules and wider channels will be allowed to cross
multiple contiguous/overlapping frequency ranges.
In case of old kernels maximum bandwidth from regulatory
rule will be used, while there is no NL80211_RRF_AUTO_BW flag.
This fixes the previous commit 9752482083066af7ac18a5ca376f
("cfg80211: regulatory introduce maximum bandwidth calculation")
which was found to be a problem for userspace API compatibility.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
[edit commit log, use sizeof()]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In case we will get regulatory request with rule
where max_bandwidth_khz is set to 0 handle this
case as a special one.
If max_bandwidth_khz == 0 we should calculate maximum
available bandwidth base on all frequency contiguous rules.
In case we need auto calculation we just have to set:
country PL: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ AUTO), (N/A, 20)
(5250 - 5330 @ AUTO), (N/A, 20), DFS
(5490 - 5710 @ 80), (N/A, 27), DFS
This mean we will calculate maximum bw for rules where
AUTO (N/A) were set, 160MHz (5330 - 5170) in example above.
So we will get:
(5170 - 5250 @ 160), (N/A, 20)
(5250 - 5330 @ 160), (N/A, 20), DFS
In other case:
country FR: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20)
(5170 - 5250 @ AUTO), (N/A, 20)
(5250 - 5330 @ 80), (N/A, 20), DFS
(5490 - 5710 @ 80), (N/A, 27), DFS
We will get 80MHz (5250 - 5170):
(5170 - 5250 @ 80), (N/A, 20)
(5250 - 5330 @ 80), (N/A, 20), DFS
Base on this calculations we will set correct channel
bandwidth flags (eg. IEEE80211_CHAN_NO_80MHZ).
We don't need any changes in CRDA or internal regulatory.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
[extend nl80211 description a bit, fix typo]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For better use of CPU idle time, allow the scheduler to select the CPU
on which the timeout work of regulatory settings would be executed.
This extends CPU idle residency time and saves power.
This functionality is enabled when CONFIG_WQ_POWER_EFFICIENT is selected.
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Shaibal Dutta <shaibal.dutta@broadcom.com>
[zoran.markovic@linaro.org: Rebased to latest kernel. Added commit message.]
Signed-off-by: Zoran Markovic <zoran.markovic@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add helper function that will return regdomain.
Follow the driver's regulatory domain, if present,
unless a country IE has been processed or a user
wants to help compliance further.
Signed-off-by: Janusz Dziedzic <janusz.dziedzi@tieto.com>
[remove useless reg variable]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Instances of struct device_type are never modified, make them const.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Fix the following issues in reg_process_hint():
1. Add verification that wiphy is valid before processing
NL80211_REGDOMAIN_SET_BY_COUNTRY_IE.
2. Free the request in case of invalid initiator.
3. Remove WARN_ON check on reg_request->alpha2 as it is not a
pointer.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The REGULATORY_CUSTOM_REG can be used during early init with
the goal of overriding the wiphy's default regulatory settings
in case the alpha2 of the device is not known. In the case that
the alpha2 becomes known lets avoid having drivers having to
clear the REGULATORY_CUSTOM_REG flag by doing it for them
when regulatory_hint() is used.
Cc: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This can be used outside of the regulatory context for any checks
on the DFS region. The central cfg80211 dfs_region is always used
and if it does not match with the wiphy a debug print is issued.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This lets us later reuse the more generic reg_dfs_region_str().
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Only allow DFS to be set if the DFS regions agree.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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u8 was used in some other places, just stick to the enum,
this forces us to express the values that are expected.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Certain vendors may want to disable the processing of
country IEs so that they can continue using the regulatory
domain the driver or user has set. Currently there is no
way to stop the core from processing country IEs, so add
support to the core to ignore country IE hints.
Cc: Mihir Shete <smihir@qti.qualcomm.com>
Cc: Henri Bahini <hbahini@qca.qualcomm.com>
Cc: Tushnim Bhattacharyya <tushnimb@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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802.11 cards may have different country IE parsing behavioural
preferences and vendors may want to support these. These preferences
were managed by the REGULATORY_CUSTOM_REG and the REGULATORY_STRICT_REG
flags and their combination. Instead of using this existing notation,
split out the country IE behavioural preferences as a new flag. This
will allow us to add more customizations easily and make the code more
maintainable.
Cc: Mihir Shete <smihir@qti.qualcomm.com>
Cc: Henri Bahini <hbahini@qca.qualcomm.com>
Cc: Tushnim Bhattacharyya <tushnimb@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[fix up conflicts]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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We'll expand this later, this will make it easier to
classify and review what things are related to regulatory
or not.
Coccinelle only missed 4 hits, which I had to do manually,
supplying the SmPL in case of merge conflicts.
@@
struct wiphy *wiphy;
@@
-wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY
+wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG
@@
expression e;
@@
-e->flags |= WIPHY_FLAG_CUSTOM_REGULATORY
+e->regulatory_flags |= REGULATORY_CUSTOM_REG
@@
struct wiphy *wiphy;
@@
-wiphy->flags &= ~WIPHY_FLAG_CUSTOM_REGULATORY
+wiphy->regulatory_flags &= ~REGULATORY_CUSTOM_REG
@@
struct wiphy *wiphy;
@@
-wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY
+wiphy->regulatory_flags & REGULATORY_CUSTOM_REG
@@
struct wiphy *wiphy;
@@
-wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY
+wiphy->regulatory_flags |= REGULATORY_STRICT_REG
@@
expression e;
@@
-e->flags |= WIPHY_FLAG_STRICT_REGULATORY
+e->regulatory_flags |= REGULATORY_STRICT_REG
@@
struct wiphy *wiphy;
@@
-wiphy->flags &= ~WIPHY_FLAG_STRICT_REGULATORY
+wiphy->regulatory_flags &= ~REGULATORY_STRICT_REG
@@
struct wiphy *wiphy;
@@
-wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY
+wiphy->regulatory_flags & REGULATORY_STRICT_REG
@@
struct wiphy *wiphy;
@@
-wiphy->flags |= WIPHY_FLAG_DISABLE_BEACON_HINTS
+wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS
@@
expression e;
@@
-e->flags |= WIPHY_FLAG_DISABLE_BEACON_HINTS
+e->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS
@@
struct wiphy *wiphy;
@@
-wiphy->flags &= ~WIPHY_FLAG_DISABLE_BEACON_HINTS
+wiphy->regulatory_flags &= ~REGULATORY_DISABLE_BEACON_HINTS
@@
struct wiphy *wiphy;
@@
-wiphy->flags & WIPHY_FLAG_DISABLE_BEACON_HINTS
+wiphy->regulatory_flags & REGULATORY_DISABLE_BEACON_HINTS
Generated-by: Coccinelle SmPL
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Mihir Shete <smihir@qti.qualcomm.com>
Cc: Henri Bahini <hbahini@qca.qualcomm.com>
Cc: Tushnim Bhattacharyya <tushnimb@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[fix up whitespace damage, overly long lines]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This reflects that case is now completely separated.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This splits up the driver regulatory update on its
own, this helps simplify the reading the case.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This splits out the user regulatory update on its
own, this helps simplify reading the case.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This splits up the core regulatory update to be
set on its own helper. This should make it easier
to read exactly what type of requests should be
expected there. In this case its clear that
NL80211_REGDOM_SET_BY_CORE is only used by the
core for updating the world regulatory domain.
This is consistant with the nl80211.h documentation.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[add warning to default switch case to avoid compiler warning]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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last_request is RCU protected, since we're getting it
on set_regdom() we might as well pass it to ensure the
same request is being processed, otherwise there is a
small race it could have changed. This makes processing
of the request atomic.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Drivers that set the WIPHY_FLAG_CUSTOM_REGULATORY skip
the core world regulatory domain updates, but do want
their reg_notifier() called. Move the check for this
closer to the source of the check that detected skipped
was required and while at it add a helper for the notifier
calling. This has no functional changes. This brings together
the place where we call the reg_notifier() will be called.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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It seems some out of tree drivers were using a regulatory_hint("00")
to trigger off the wiphy regulatory notifier, for those cases just
setting the WIPHY_FLAG_CUSTOM_REGULATORY would suffice to call
the reg_notifier() for a world regulatory domain update. If drivers
find other needs for calling the reg_notifier() a proper implemenation
is preferred.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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All the regulatory request process routines use the
same pattern.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This enforces proper RCU APIs accross the code.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This is common code, this reduces the chance of making
a mistake of how we free it.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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By dealing with non country IE conficts first we can shift
the code that deals with the conflict to the left. This has
no functional changes.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This is the last split up of the old unified __regultory_hint()
processing set of functionality, it moves the country IE processing
all on its own. This makes it easier to follow and read what exactly
is going on for the case of processing country IEs.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This makes the code easier to read and follow.
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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