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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>	7 years ago
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wireless	mac80211: gracefully handle preexisting VIF	7 years ago

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>

wireless mac80211: gracefully handle preexisting VIF 7 years ago