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cfg80211: move function checking range fit to util.c

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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>
This commit is contained in:
Rafał Miłecki
2017-01-04 18:58:30 +01:00
committed by Johannes Berg
parent b330b25eaa
commit 4787cfa084
3 changed files with 25 additions and 20 deletions
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15
net/wireless/util.c
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@@ -1847,6 +1847,21 @@ void cfg80211_free_nan_func(struct cfg80211_nan_func *f)
}
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) =