linux-kernel - Re: [PATCH v2 2/2] staging: slicoss: remove UPDATE_STATS

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Date:   Thu, 24 Nov 2016 20:41:24 +0100
From:   Markus Böhme <markus.boehme@...lbox.org>
To:     Sergio Paracuellos <sergio.paracuellos@...il.com>,
        gregkh@...uxfoundation.org
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        liodot@...il.com
Subject: Re: [PATCH v2 2/2] staging: slicoss: remove UPDATE_STATS_GB macro and
 inline code

On 11/24/2016 08:21 PM, Sergio Paracuellos wrote:
> This patch removes UPDATE_STATS_GB macro in slic.h header file
> and just inline code. This improve readability.
> 
> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> ---
>  drivers/staging/slicoss/slic.h    |  5 ----
>  drivers/staging/slicoss/slicoss.c | 52 +++++++++++++++++++--------------------
>  2 files changed, 25 insertions(+), 32 deletions(-)
> 
> diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
> index 2c05868..2893bdf 100644
> --- a/drivers/staging/slicoss/slic.h
> +++ b/drivers/staging/slicoss/slic.h
> @@ -548,11 +548,6 @@ static inline void slic_flush_write(struct adapter *adapter)
>  	ioread32(adapter->regs + SLIC_REG_HOSTID);
>  }
>  
> -#define UPDATE_STATS_GB(largestat, newstat, oldstat)                     \
> -{                                                                        \
> -	(largestat) += ((newstat) - (oldstat));                          \
> -}
> -
>  #if BITS_PER_LONG == 64
>  #define   SLIC_GET_ADDR_LOW(_addr)  (u32)((u64)(_addr) & \
>  	0x00000000FFFFFFFF)
> diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
> index b6ec0a1..ffc7c45 100644
> --- a/drivers/staging/slicoss/slicoss.c
> +++ b/drivers/staging/slicoss/slicoss.c
> @@ -1014,45 +1014,43 @@ static void slic_upr_request_complete(struct adapter *adapter, u32 isr)
>  			break;
>  		}
>  
> -		UPDATE_STATS_GB(stst->tcp.xmit_tcp_segs, stats->xmit_tcp_segs,
> -				old->xmit_tcp_segs);
> +		stst->tcp.xmit_tcp_segs =
> +			stats->xmit_tcp_segs - old->xmit_tcp_segs;

Missed this the first time, but the difference should be added to the
value in stst:

		stst->tcp.xmit_tcp_segs +=
			stats->xmit_tcp_segs - old->xmit_tcp_segs;

The same applies to the changes below.

>  
> -		UPDATE_STATS_GB(stst->tcp.xmit_tcp_bytes, stats->xmit_tcp_bytes,
> -				old->xmit_tcp_bytes);
> +		stst->tcp.xmit_tcp_bytes =
> +			stats->xmit_tcp_bytes - old->xmit_tcp_bytes;
>  
> -		UPDATE_STATS_GB(stst->tcp.rcv_tcp_segs, stats->rcv_tcp_segs,
> -				old->rcv_tcp_segs);
> +		stst->tcp.rcv_tcp_segs =
> +			stats->rcv_tcp_segs - old->rcv_tcp_segs;
>  
> -		UPDATE_STATS_GB(stst->tcp.rcv_tcp_bytes, stats->rcv_tcp_bytes,
> -				old->rcv_tcp_bytes);
> +		stst->tcp.rcv_tcp_bytes =
> +			stats->rcv_tcp_bytes - old->rcv_tcp_bytes;
>  
> -		UPDATE_STATS_GB(stst->iface.xmt_bytes, stats->xmit_bytes,
> -				old->xmit_bytes);
> +		stst->iface.xmt_bytes =
> +			stats->xmit_bytes - old->xmit_bytes;
>  
> -		UPDATE_STATS_GB(stst->iface.xmt_ucast, stats->xmit_unicasts,
> -				old->xmit_unicasts);
> +		stst->iface.xmt_ucast =
> +			stats->xmit_unicasts - old->xmit_unicasts;
>  
> -		UPDATE_STATS_GB(stst->iface.rcv_bytes, stats->rcv_bytes,
> -				old->rcv_bytes);
> +		stst->iface.rcv_bytes =
> +			stats->rcv_bytes - old->rcv_bytes;
>  
> -		UPDATE_STATS_GB(stst->iface.rcv_ucast, stats->rcv_unicasts,
> -				old->rcv_unicasts);
> +		stst->iface.rcv_ucast =
> +			stats->rcv_unicasts - old->rcv_unicasts;
>  
> -		UPDATE_STATS_GB(stst->iface.xmt_errors, stats->xmit_collisions,
> -				old->xmit_collisions);
> +		stst->iface.xmt_errors =
> +			stats->xmit_collisions - old->xmit_collisions;
>  
> -		UPDATE_STATS_GB(stst->iface.xmt_errors,
> -				stats->xmit_excess_collisions,
> -				old->xmit_excess_collisions);
> +		stst->iface.xmt_errors = stats->xmit_excess_collisions -
> +					old->xmit_excess_collisions;
>  
> -		UPDATE_STATS_GB(stst->iface.xmt_errors, stats->xmit_other_error,
> -				old->xmit_other_error);
> +		stst->iface.xmt_errors =
> +			stats->xmit_other_error - old->xmit_other_error;
>  
> -		UPDATE_STATS_GB(stst->iface.rcv_errors, stats->rcv_other_error,
> -				old->rcv_other_error);
> +		stst->iface.rcv_errors =
> +			stats->rcv_other_error - old->rcv_other_error;
>  
> -		UPDATE_STATS_GB(stst->iface.rcv_discards, stats->rcv_drops,
> -				old->rcv_drops);
> +		stst->iface.rcv_discards = stats->rcv_drops - old->rcv_drops;
>  
>  		if (stats->rcv_drops > old->rcv_drops)
>  			adapter->rcv_drops += (stats->rcv_drops -
> 

Regards,
Markus