Re: [PATCH] vhost: silence an unused-variable warning
From: David Miller
Date: Fri Mar 08 2019 - 18:17:29 EST
From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Wed, 6 Mar 2019 12:05:49 +0100
> On some architectures, the MMU can be disabled, leading to access_ok()
> becoming an empty macro that does not evaluate its size argument,
> which in turn produces an unused-variable warning:
> drivers/vhost/vhost.c:1191:9: error: unused variable 's' [-Werror,-Wunused-variable]
> size_t s = vhost_has_feature(vq, VIRTIO_RING_F_EVENT_IDX) ? 2 : 0;
> Mark the variable as __maybe_unused to shut up that warning.
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
I'll apply this, thanks Arnd.