On Thu, 2025-08-07 at 21:10 +0800, Callan Huang wrote: > When GET ioctls encounter insufficient buffer (-E2BIG), > preserve u.data.length metadata in iwreq structure for size detection > > Typical usage in userspace tools like 'iwlist wlan0 scanning': > - Detect required buffer size via u.data.length > - Implement retry logic with proper allocation If you'd sent this patch 15 years ago I probably would've taken it, but honestly, at this point ... no. Just use nl80211, or large buffers in the userspace to start with. There's a very small buffer limit _anyway_, so that getting the full scan list in busy environments is actually impossible with wext. johannes
