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authorDavid Gibson <david@gibson.dropbear.id.au>2022-10-19 11:43:51 +1100
committerStefano Brivio <sbrivio@redhat.com>2022-10-19 03:34:43 +0200
commitfb5d1c5d7d0b914a90aaeecf406c7092d9d55aeb (patch)
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parentf72b63e92f040104a289d5f38047c3688fa76593 (diff)
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tap: Remove unhelpeful vnet_pre optimization from tap_send()
Callers of tap_send() can optionally use a small optimization by adding extra space for the 4 byte length header used on the qemu socket interface. tap_ip_send() is currently the only user of this, but this is used only for "slow path" ICMP and DHCP packets, so there's not a lot of value to the optimization. Worse, having the two paths here complicates the interface and makes future cleanups difficult, so just remove it. I have some plans to bring back the optimization in a more general way in future, but for now it's just in the way. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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