Re: [PATCH] vhost: fix performance on LE hosts

From: David Miller
Date: Tue Oct 27 2015 - 23:02:42 EST

From: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Date: Tue, 27 Oct 2015 11:37:39 +0200

> commit 2751c9882b947292fcfb084c4f604e01724af804 ("vhost: cross-endian
> support for legacy devices") introduced a minor regression: even with
> cross-endian disabled, and even on LE host, vhost_is_little_endian is
> checking is_le flag so there's always a branch.
> To fix, simply check virtio_legacy_is_little_endian first.
> Cc: Greg Kurz <gkurz@xxxxxxxxxxxxxxxxxx>
> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>

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