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Re: [PATCH] mac80211: Fix the buffer length in debugfs for smps

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On Mon, 2014-01-06 at 20:35 +0530, Krishna Chaitanya wrote:
> On Mon, Jan 6, 2014 at 8:18 PM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
> > On Sun, 2014-01-05 at 02:36 +0530, Chaitanya T K wrote:
> >> This was blocking sending SMPS action frames
> >> through debugfs.
> >
> > I don't see any issue here, explain.
> >
> > johannes
> >
> buflen includes the new line character as well, hence the comparison
> strncmp fails for all combiantions.
> 
> echo "static" > ieee80211/phyX/netdev\:wlanX/smps
> Then
> 
> buf=static\n
> buflen=7
> 
> But the comparison is with "static" which doesn't include "\n"
> hence the comparison fails.

Err, ok, so you can just do "echo -n static", right?

And then your patch breaks the way it currently works, which is about
the worst you can do.

johannes


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