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Re: /proc/net/wireless has gone missing in 6.13

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On Fri, 2025-02-21 at 11:01 -0800, Alex Gavin wrote:
> On 2025-02-21 9:10 a.m., Artem S. Tashkinov wrote:
> > Hello,
> > 
> > Multiple people report[1] that /proc/net/wireless has gone missing in 6.13.
> > 
> > Many utilities/applications depend on this file presence.
> > 
> > Please restore it as the kernel mustn't break userspace [interfaces].
> > 
> > 
> > 1. https://bugzilla.redhat.com/show_bug.cgi?id=2334171
> > 
> > 
> > Regards,
> > Artem
> > 
> 
> Support for /proc/net/wireless is still present in the kernel. However, in the GitHub issue
> referenced by the bug report you linked, user 'clnhub' noted that Fedora has removed wireless
> extensions (wext) support from their 6.12+ kernel builds [1].
> 
> You can still build it into the kernel by enabling 'WIRELESS_PROC' in your configuration.

I'm happy to hear that! :-)

I'll also note that since multi-link / WiFi7 support is far more
complex, newer devices with multi-link capability will not have support
for wireless extensions, even if it's enabled /proc/net/wireless will
exist but the netdevs for them won't show up. Since that affects only
new hardware, it's not a regression, though I guess in some cases it
might technically depend on the driver.

johannes





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