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