Jo-Philipp Wich 4a03347545 mac80211: gracefully handle preexisting VIF ... Gracefully handle cases where the to-be-created wireless interface already exists on the system which might commonly happen with non-multi-SSID capable wireless drivers. This fixes commit 8301e61365 which caused previously ignored "Too many open files in system (-23)" errors to fail the wireless setup procedure. With the updated approach we'll still try recreating the vif after one second if the first attempt to do so failed with ENFILE but we will now consider the operation successfull if a second attempt still yields ENFILE with the requested ifname already existing on the system. Fixes FS#664, FS#704. Suggested-by: Vittorio Gambaletta <openwrt@vittgam.net> Signed-off-by: Jo-Philipp Wich <jo@mein.io>		2017-05-14 21:43:11 +02:00
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wireless	mac80211: gracefully handle preexisting VIF	2017-05-14 21:43:11 +02:00