From: Amit Shah <amit.shah@redhat.com>
Date: Wed, 14 Sep 2011 07:36:43 +0000 (+0530)
Subject: virtio: console: make get_inbuf() return port->inbuf if present
X-Git-Tag: v3.2-rc1~83^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d25a9ddae93ca97aa03fdab1363baf0e0c35d960;p=pandora-kernel.git

virtio: console: make get_inbuf() return port->inbuf if present

Instead of pulling in a buffer from the vq each time it's called,
get_inbuf() now checks if the current active buffer, in port->inbuf is
valid.  If it is, just returns a pointer to it.  This ends up
simplifying a lot of code calling get_inbuf() since the check for
port->inbuf being valid was done by all the callers.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

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