linux-kernel - Re: [PATCH v5 3/8] macvtap: introduce macvtap_is_little

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Message-ID: <20150423205925.5bd803a3@thh440s>
Date:	Thu, 23 Apr 2015 20:59:25 +0200
From:	Thomas Huth <thuth@...hat.com>
To:	Greg Kurz <gkurz@...ux.vnet.ibm.com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Cornelia Huck <cornelia.huck@...ibm.com>,
	linux-api@...r.kernel.org, linux-kernel@...r.kernel.org,
	kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH v5 3/8] macvtap: introduce macvtap_is_little_endian()
 helper

On Thu, 23 Apr 2015 17:26:41 +0200
Greg Kurz <gkurz@...ux.vnet.ibm.com> wrote:

> Signed-off-by: Greg Kurz <gkurz@...ux.vnet.ibm.com>
> ---
>  drivers/net/macvtap.c |    9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
> index 27ecc5c..a2f2958 100644
> --- a/drivers/net/macvtap.c
> +++ b/drivers/net/macvtap.c
> @@ -49,14 +49,19 @@ struct macvtap_queue {
>  
>  #define MACVTAP_VNET_LE 0x80000000
>  
> +static inline bool macvtap_is_little_endian(struct macvtap_queue *q)
> +{
> +	return q->flags & MACVTAP_VNET_LE;
> +}
> +
>  static inline u16 macvtap16_to_cpu(struct macvtap_queue *q, __virtio16 val)
>  {
> -	return __virtio16_to_cpu(q->flags & MACVTAP_VNET_LE, val);
> +	return __virtio16_to_cpu(macvtap_is_little_endian(q), val);
>  }
>  
>  static inline __virtio16 cpu_to_macvtap16(struct macvtap_queue *q, u16 val)
>  {
> -	return __cpu_to_virtio16(q->flags & MACVTAP_VNET_LE, val);
> +	return __cpu_to_virtio16(macvtap_is_little_endian(q), val);
>  }

Reviewed-by: Thomas Huth <thuth@...hat.com>
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