korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 00:04:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

wifi: mac80211: apply duration for SW scan

Browse Source 
This patch makes duration in scan request be applicable when using
SW scan, but only accepts durations greater than the default value for
the following reasons:
1. Most APs have a beacoon interval of 100ms.
2. Sending and receiving probe require some delay.
3. Setting channel to HW also requires some delays

Signed-off-by: Michael-CY Lee <michael-cy.lee@mediatek.com>
Link: https://msgid.link/20240123054752.22833-1-michael-cy.lee@mediatek.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Michael-CY Lee 2024-01-23 13:47:52 +08:00 committed by Johannes Berg
parent e10322810c
commit d60277ac3f
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
net/mac80211/scan.c
View File

@ -671,7 +671,10 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
* After sending probe requests, wait for probe responses
* on the channel.
*/
*next_delay = IEEE80211_CHANNEL_TIME;
*next_delay = msecs_to_jiffies(scan_req->duration) >
IEEE80211_PROBE_DELAY + IEEE80211_CHANNEL_TIME ?
msecs_to_jiffies(scan_req->duration) - IEEE80211_PROBE_DELAY :
IEEE80211_CHANNEL_TIME;
local->next_scan_state = SCAN_DECISION;
}
@ -994,7 +997,10 @@ set_channel:
*/
if ((chan->flags & (IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_RADAR)) ||
!scan_req->n_ssids) {
*next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
*next_delay = msecs_to_jiffies(scan_req->duration) >
IEEE80211_PASSIVE_CHANNEL_TIME ?
msecs_to_jiffies(scan_req->duration) :
IEEE80211_PASSIVE_CHANNEL_TIME;
local->next_scan_state = SCAN_DECISION;
if (scan_req->n_ssids)
set_bit(SCAN_BEACON_WAIT, &local->scanning);