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| author | Felix Fietkau <nbd@nbd.name> | 2022-12-16 11:37:30 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2022-12-16 14:32:47 +0100 |
| commit | 133a1e2f3787ec995561398bda7571180598454f (patch) | |
| tree | ee89446c51d10f584ff1ef6899c087869f99b889 | |
| parent | 92acd9f3e8312883c3cbc7b3885c969d72c36f77 (diff) | |
| download | upstream-133a1e2f3787ec995561398bda7571180598454f.tar.gz upstream-133a1e2f3787ec995561398bda7571180598454f.tar.bz2 upstream-133a1e2f3787ec995561398bda7571180598454f.zip | |
mac80211: work around a race condition on detecting a phy while bringing it up
When reloading modules and running wifi, a phy can sometimes be renamed
while in the middle of a hotplug call that tries to detect new phys
This can lead to bogus wifi-device sections being created
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | package/kernel/mac80211/files/lib/wifi/mac80211.sh | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/package/kernel/mac80211/files/lib/wifi/mac80211.sh b/package/kernel/mac80211/files/lib/wifi/mac80211.sh index 3ecd932228..e24a2a634e 100644 --- a/package/kernel/mac80211/files/lib/wifi/mac80211.sh +++ b/package/kernel/mac80211/files/lib/wifi/mac80211.sh @@ -167,6 +167,10 @@ detect_mac80211() { path="$(iwinfo nl80211 path "$dev")" macaddr="$(cat /sys/class/ieee80211/${dev}/macaddress)" + + # work around phy rename related race condition + [ -n "$path" -o -n "$macaddr" ] || continue + board_dev= fallback_board_dev= json_for_each_item check_board_phy wlan |