wifi: mac80211: mesh: init nonpeer_pm to active by default in mesh sdata

With a ath9k device I can see that:
	iw phy phy0 interface add mesh0 type mp
	ip link set mesh0 up
	iw dev mesh0 scan

Will start a scan with the Power Management bit set in the Frame Control Field.
This is because we set this bit depending on the nonpeer_pm variable of the mesh
iface sdata and when there are no active links on the interface it remains to
NL80211_MESH_POWER_UNKNOWN.

As soon as links starts to be established, it wil switch to
NL80211_MESH_POWER_ACTIVE as it is the value set by befault on the per sta
nonpeer_pm field.
As we want no power save by default, (as expressed with the per sta ini values),
lets init it to the expected default value of NL80211_MESH_POWER_ACTIVE.

Also please note that we cannot change the default value from userspace prior to
establishing a link as using NL80211_CMD_SET_MESH_CONFIG will not work before
NL80211_CMD_JOIN_MESH has been issued. So too late for our initial scan.

Signed-off-by: Nicolas Escande <nico.escande@gmail.com>
Link: https://msgid.link/20240527141759.299411-1-nico.escande@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index cbc9b5e40cb35e81fb80dd55016c3afc8c31deb7..6d4510221c98e695ea140e40e5e9ec5cbf385a5e 100644 (file)
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -1776,6 +1776,7 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
        ifmsh->last_preq = jiffies;
        ifmsh->next_perr = jiffies;
        ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
+       ifmsh->nonpeer_pm = NL80211_MESH_POWER_ACTIVE;
        /* Allocate all mesh structures when creating the first mesh interface. */
        if (!mesh_allocated)
                ieee80211s_init();