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P2P: Iterate through full pref_chan list in search of a valid channel

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p2p_get_pref_freq() went through the full list only if the channels
arguments was provided. If no channel list contraint was in place, the
first pref_chan item was picked regardless of whether it is valid
channel and as such, a later valid entry could have been ignored. Allow
this to loop through all the entries until a valid channel is found or
the end of the pref_chan list is reached. As an extra bonus, this
simplifies the p2p_get_pref_freq() implementation quite a bit.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2014-05-16 16:49:17 +03:00 committed by Jouni Malinen
parent d00184df7c
commit 5cd0e228ac
1 changed files with 4 additions and 13 deletions
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17
src/p2p/p2p_utils.c
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@ -384,23 +384,14 @@ unsigned int p2p_get_pref_freq(struct p2p_data *p2p,
const struct p2p_channels *channels)
{
unsigned int i;
int freq = 0;
if (channels == NULL) {
if (p2p->cfg->num_pref_chan) {
freq = p2p_channel_to_freq(
p2p->cfg->pref_chan[0].op_class,
p2p->cfg->pref_chan[0].chan);
if (freq < 0)
freq = 0;
}
return freq;
}
int freq;
for (i = 0; p2p->cfg->pref_chan && i < p2p->cfg->num_pref_chan; i++) {
freq = p2p_channel_to_freq(p2p->cfg->pref_chan[i].op_class,
p2p->cfg->pref_chan[i].chan);
if (p2p_channels_includes_freq(channels, freq))
if (freq <= 0)
continue;
if (!channels || p2p_channels_includes_freq(channels, freq))
return freq;
}