Re: [PATCHv2 2/2] mac80211: Don't use a buf_size=0 in ADDBA requests

[Johannes Berg <johannes@sipsolutions.net>]

On Mon, 2011-08-08 at 10:40 +0200, Helmut Schaa wrote:
> On Mon, Aug 8, 2011 at 10:29 AM, Johannes Berg
> <johannes@sipsolutions.net> wrote:
> > So, are you saying the problem with getting 0 in replies is solved by
> > not sending 0 in requests?
> 
> This specific device always replies with a buf_size=0 _if_ we send an
> ADDBA request
> with a buf_size=0.
> 
> The first patch in this series solves a problem were mac80211 would
> buffer frames to
> this STA forever when the ADDBA response contains a buf_size=0 since the BA
> session is stuck in an intermediate state.
> 
> However, the AVM Fritz Stick N client behaves correctly if we're using
> a buf_size != 0
> in the ADDBA request. This is a bug in the Fritz Stick Windows driver
> (it should use
> the default size of its rx reorder buffer if the ADDBA request
> contains 0). However, this
> bug can be worked around by using a buf_size != 0 in ADDBA requests. And that's
> what the second patch does.
> 
> Hope this clarifies my intention :)

Yes, thanks.

johannes