On Sun, 30 Jul 2017 14:19:30 -0700
Joe Perches <j...@perches.com> wrote:

> Repeated dereference of nvmsg.msg.v1_msg.send_rndis_pkt can be
> shortened by using a temporary.  Do so.
> 
> No change in object code.
> 
> Signed-off-by: Joe Perches <j...@perches.com>

Looks good, several other places also suffer from to 
long.variable.name.wordiness.

Please rebase this on net-next.

> ---
>  drivers/net/hyperv/netvsc.c | 24 ++++++++++--------------
>  1 file changed, 10 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
> index 06f39a99da7c..fede1546cdc6 100644
> --- a/drivers/net/hyperv/netvsc.c
> +++ b/drivers/net/hyperv/netvsc.c
> @@ -743,6 +743,7 @@ static inline int netvsc_send_pkt(
>       struct sk_buff *skb)
>  {
>       struct nvsp_message nvmsg;
> +     struct nvsp_1_message_send_rndis_packet *rpkt;

const?

>       struct netvsc_channel *nvchan
>               = &net_device->chan_table[packet->q_idx];
>       struct vmbus_channel *out_channel = nvchan->channel;
> @@ -754,21 +755,17 @@ static inline int netvsc_send_pkt(
>       u32 ring_avail = hv_ringbuf_avail_percent(&out_channel->outbound);
>  
>       nvmsg.hdr.msg_type = NVSP_MSG1_TYPE_SEND_RNDIS_PKT;
> -     if (skb != NULL) {
> -             /* 0 is RMC_DATA; */
> -             nvmsg.msg.v1_msg.send_rndis_pkt.channel_type = 0;
> -     } else {
> -             /* 1 is RMC_CONTROL; */
> -             nvmsg.msg.v1_msg.send_rndis_pkt.channel_type = 1;
> -     }
> +     rpkt = &nvmsg.msg.v1_msg.send_rndis_pkt;
> +     if (skb != NULL)
> +             rpkt->channel_type = 0;         /* 0 is RMC_DATA */
> +     else
> +             rpkt->channel_type = 1;         /* 1 is RMC_CONTROL */
>  
> -     nvmsg.msg.v1_msg.send_rndis_pkt.send_buf_section_index =
> -             packet->send_buf_index;
> +     rpkt->send_buf_section_index = packet->send_buf_index;
>       if (packet->send_buf_index == NETVSC_INVALID_INDEX)
> -             nvmsg.msg.v1_msg.send_rndis_pkt.send_buf_section_size = 0;
> +             rpkt->send_buf_section_size = 0;
>       else
> -             nvmsg.msg.v1_msg.send_rndis_pkt.send_buf_section_size =
> -                     packet->total_data_buflen;
> +             rpkt->send_buf_section_size = packet->total_data_buflen;
>  
>       req_id = (ulong)skb;
>  
> @@ -776,8 +773,7 @@ static inline int netvsc_send_pkt(
>               return -ENODEV;
>  
>       if (packet->page_buf_cnt) {
> -             pgbuf = packet->cp_partial ? (*pb) +
> -                     packet->rmsg_pgcnt : (*pb);
> +             pgbuf = packet->cp_partial ? *pb + packet->rmsg_pgcnt : *pb;
>               ret = vmbus_sendpacket_pagebuffer_ctl(out_channel,
>                                                     pgbuf,
>                                                     packet->page_buf_cnt,

This part just changed (got rid of indirection) in net-next.



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