Re: [Linux-zigbee-devel] [PATCH 4/4] ieee802154: remove seq member of mac_cb

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Hi,

This patch is fine. Increment and set of DSN value should be done by
mac802154 layer.

But there is also a known issue with increment of DSN value while
6lowpan fragmentation.

On a fragmented packet 6lowpan calls dev_hard_header once, then many
times lowpan_fragment_xmit, depending on the number of fragments which
is needed.

Each call of lowpan_fragment_xmit will have the same DSN value. Maybe we
should put the increment of DSN in "mac802154/tx.c" before calling xmit
callback from driver (Just an idea). What do you think about that?

- Alex
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