af-packet tpacket_rcv - why is status flushed before the packet-payload ...

Hi,

in tpacket_rcv() - this is the flushing sequence ...

1)
__packet_set_status(po, h.raw, status);

2)
smp_mb();

3)
#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 1
flush-the-payload
#endif

Why is it done this way?

Shouldn't we be flushing the packet_status after flushing the payload?
So 1 and 3 should be swapped, no?

Chetan Loke