On Thu, Jul 30, 2020 at 5:24 PM Brian Norris wrote:
>
> Sure, I can do that:
>
> Reviewed-by: Brian Norris
Thank you so much for your review, Brian!
> I guess x25 is basically an abandoned project, if you're coming to me for
> this?
Yes, it does seem to me that X.25 is unmaintained. I'm
On Tue, Jul 28, 2020 at 6:42 PM Xie He wrote:
> On Tue, Jul 28, 2020 at 12:52 PM -0700
> Brian Norris wrote:
> > What is the intention with this X25 protocol? I guess the headers added
> > in lapbeth_data_transmit() are supposed to be "invisible", as with this
> > note in af_packet.c?
...
> This
Thank you for your detailed review, Brian!
I guess we have the same understanding on the "hard_header_len vs
needed_headroom" part. I agree it is not well documented and is also
confusing to driver developers. I didn't understand it either until I
looked at af_packet.c.
On Tue, Jul 28, 2020 at
(Reviewing as requested; I'm not familiar with this driver either, or
really any WAN driver. It also seems that hard_header_len vs.
needed_headroom aren't very well documented, and even I can't guarantee
I understand them completely. So take my thoughts with a grain of salt.)
Hi,
On Sun, Jul 26,
Hi Brian Norris,
I'm wishing to change a driver from using "hard_header_len" to using
"needed_headroom" to declare its needed headroom. I submitted a patch
and it is decided it needs to be reviewed. I see you submitted a similar
patch in the past. So I think you might be able to help review my
Hello,
On Mon, Jul 27, 2020 at 12:41 PM Xie He wrote:
>
> Hi Cong Wang,
>
> I'm wishing to change a driver from using "hard_header_len" to using
> "needed_headroom" to declare its needed headroom. I submitted a patch
> and it is decided it needs to be reviewed. I see you participated in
>
Hi Cong Wang,
I'm wishing to change a driver from using "hard_header_len" to using
"needed_headroom" to declare its needed headroom. I submitted a patch
and it is decided it needs to be reviewed. I see you participated in
"hard_header_len vs needed_headroom" discussions in the past. Can you
help
In net/packet/af_packet.c, the function packet_snd first reserves a
headroom of length (dev->hard_header_len + dev->needed_headroom).
Then if the socket is a SOCK_DGRAM socket, it calls dev_hard_header,
which calls dev->header_ops->create, to create the link layer header.
If the socket is a
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