188626f17c
This property allows specifying extra limits for wireless device in DT.
For a full documentation see upstream commit b330b25eaabd ("dt-bindings:
document common IEEE 802.11 frequency limit property").
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
102 lines
3.3 KiB
Diff
102 lines
3.3 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
|
|
Date: Wed, 4 Jan 2017 18:58:30 +0100
|
|
Subject: [PATCH] cfg80211: move function checking range fit to util.c
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
It is needed for another cfg80211 helper that will be out of reg.c so
|
|
move it to common util.c file and make it non-static.
|
|
|
|
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
|
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
|
|
---
|
|
|
|
--- a/net/wireless/core.h
|
|
+++ b/net/wireless/core.h
|
|
@@ -429,6 +429,9 @@ int cfg80211_change_iface(struct cfg8021
|
|
void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
|
|
void cfg80211_process_wdev_events(struct wireless_dev *wdev);
|
|
|
|
+bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
|
|
+ u32 center_freq_khz, u32 bw_khz);
|
|
+
|
|
/**
|
|
* cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
|
|
* @wiphy: the wiphy to validate against
|
|
--- a/net/wireless/reg.c
|
|
+++ b/net/wireless/reg.c
|
|
@@ -748,21 +748,6 @@ static bool is_valid_rd(const struct iee
|
|
return true;
|
|
}
|
|
|
|
-static bool reg_does_bw_fit(const struct ieee80211_freq_range *freq_range,
|
|
- u32 center_freq_khz, u32 bw_khz)
|
|
-{
|
|
- u32 start_freq_khz, end_freq_khz;
|
|
-
|
|
- start_freq_khz = center_freq_khz - (bw_khz/2);
|
|
- end_freq_khz = center_freq_khz + (bw_khz/2);
|
|
-
|
|
- if (start_freq_khz >= freq_range->start_freq_khz &&
|
|
- end_freq_khz <= freq_range->end_freq_khz)
|
|
- return true;
|
|
-
|
|
- return false;
|
|
-}
|
|
-
|
|
/**
|
|
* freq_in_rule_band - tells us if a frequency is in a frequency band
|
|
* @freq_range: frequency rule we want to query
|
|
@@ -1070,7 +1055,7 @@ freq_reg_info_regd(u32 center_freq,
|
|
if (!band_rule_found)
|
|
band_rule_found = freq_in_rule_band(fr, center_freq);
|
|
|
|
- bw_fits = reg_does_bw_fit(fr, center_freq, bw);
|
|
+ bw_fits = cfg80211_does_bw_fit_range(fr, center_freq, bw);
|
|
|
|
if (band_rule_found && bw_fits)
|
|
return rr;
|
|
@@ -1138,11 +1123,13 @@ static uint32_t reg_rule_to_chan_bw_flag
|
|
max_bandwidth_khz = reg_get_max_bandwidth(regd, reg_rule);
|
|
|
|
/* If we get a reg_rule we can assume that at least 5Mhz fit */
|
|
- if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq),
|
|
- MHZ_TO_KHZ(10)))
|
|
+ if (!cfg80211_does_bw_fit_range(freq_range,
|
|
+ MHZ_TO_KHZ(chan->center_freq),
|
|
+ MHZ_TO_KHZ(10)))
|
|
bw_flags |= IEEE80211_CHAN_NO_10MHZ;
|
|
- if (!reg_does_bw_fit(freq_range, MHZ_TO_KHZ(chan->center_freq),
|
|
- MHZ_TO_KHZ(20)))
|
|
+ if (!cfg80211_does_bw_fit_range(freq_range,
|
|
+ MHZ_TO_KHZ(chan->center_freq),
|
|
+ MHZ_TO_KHZ(20)))
|
|
bw_flags |= IEEE80211_CHAN_NO_20MHZ;
|
|
|
|
if (max_bandwidth_khz < MHZ_TO_KHZ(10))
|
|
--- a/net/wireless/util.c
|
|
+++ b/net/wireless/util.c
|
|
@@ -1788,6 +1788,21 @@ void cfg80211_free_nan_func(struct cfg80
|
|
}
|
|
EXPORT_SYMBOL(cfg80211_free_nan_func);
|
|
|
|
+bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
|
|
+ u32 center_freq_khz, u32 bw_khz)
|
|
+{
|
|
+ u32 start_freq_khz, end_freq_khz;
|
|
+
|
|
+ start_freq_khz = center_freq_khz - (bw_khz / 2);
|
|
+ end_freq_khz = center_freq_khz + (bw_khz / 2);
|
|
+
|
|
+ if (start_freq_khz >= freq_range->start_freq_khz &&
|
|
+ end_freq_khz <= freq_range->end_freq_khz)
|
|
+ return true;
|
|
+
|
|
+ return false;
|
|
+}
|
|
+
|
|
/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
|
|
/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
|
|
const unsigned char rfc1042_header[] __aligned(2) =
|