linux-kernel - Re: [PATCH] mpt3sas: Fix use sas_is_tlr_enabled API before enabling MPI2_SCSIIO_CONTROL_TLR

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Message-ID: <5645FC38.2070201@redhat.com>
Date:	Fri, 13 Nov 2015 16:05:28 +0100
From:	Tomas Henzl <thenzl@...hat.com>
To:	Sreekanth Reddy <sreekanth.reddy@...gotech.com>, jejb@...nel.org
Cc:	martin.petersen@...cle.com, linux-scsi@...r.kernel.org,
	JBottomley@...allels.com, Sathya.Prakash@...gotech.com,
	kashyap.desai@...gotech.com, linux-kernel@...r.kernel.org,
	hch@...radead.org, chaitra.basappa@...gotech.com,
	suganath-prabu.subramani@...gotech.com
Subject: Re: [PATCH] mpt3sas: Fix use sas_is_tlr_enabled API before enabling
 MPI2_SCSIIO_CONTROL_TLR_ON flag

On 12.11.2015 19:10, Sreekanth Reddy wrote:
> Before enabling MPI2_SCSIIO_CONTROL_TLR_ON flag in MPI SCSI IO
> request message, check whether TLR is enabled on the drive using
> 'sas_is_tlr_enabled' API.
>
> Actually in the driver code, driver is using below API's
>
> 1. sas_enable_tlr() - to enable the TLR
> 2. sas_disable_tlr() - to disable the TLR
> 3. sas_is_tlr_enabled() - to check whether TLR is enabled or not.
>
> but in scsih_qcmd() we have missed to use sas_is_tlr_enabled() API,
> instead we checking for TLR bit from flag field of driver's
> 'struct MPT3SAS_DEVIC' structure. which is corrected with this patch.
>
> Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@...gotech.com>

Reviewed-by: Tomas Henzl <thenzl@...hat.com>

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