Re: [PATCH 02/15] hisi_sas: save delivery queue write pointer

[Hannes Reinecke]

On 09/06/2016 05:36 PM, John Garry wrote:
> Optimise by saving an avoidable read in the
> get_free_slot function.
> The delivery queue write pointer will only be
> updated by software, so don't bother re-reading
> what was already written in the previous call
> to start_delivery function.
> 
> Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
> ---
>  drivers/scsi/hisi_sas/hisi_sas.h       |  7 +++++++
>  drivers/scsi/hisi_sas/hisi_sas_main.c  |  5 +++++
>  drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 12 +++++++-----
>  drivers/scsi/hisi_sas/hisi_sas_v2_hw.c |  9 ++++++---
>  4 files changed, 25 insertions(+), 8 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>

Cheers,

Cheers
-- 
Dr. Hannes Reinecke		      zSeries & Storage
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