xen-netback: support multiple extra info fragments passed from frontend

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The code does not currently support a frontend passing multiple extra info
fragments to the backend in a tx request. The xenvif_get_extras() function
handles multiple extra_info fragments but make_tx_response() assumes there
is only ever a single extra info fragment.

This patch modifies xenvif_get_extras() to pass back a count of extra
info fragments, which is then passed to make_tx_response() (after
possibly being stashed in pending_tx_info for deferred responses).

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Paul Durrant 2016-03-10 12:30:27 +00:00 • committed by David S. Miller

parent 6b8abef5f8

commit 562abd39a1

2 changed files with 43 additions and 23 deletions

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1

drivers/net/xen-netback/common.h

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65

drivers/net/xen-netback/netback.c

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