linux-kernel - Re: [PATCH] hpsa: use check

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Message-ID: <4F7B1B2A.7060602@hp.com>
Date:	Tue, 03 Apr 2012 10:45:46 -0500
From:	Mike Miller <mike.miller@...com>
To:	Akinobu Mita <akinobu.mita@...il.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	ISS StorageDev <iss_storagedev@...com>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>
Subject: Re: [PATCH] hpsa: use check_signature

On 04/03/2012 12:38 AM, Akinobu Mita wrote:
> Use check_signature to find a signature in the mmio address.
>
> Signed-off-by: Akinobu Mita<akinobu.mita@...il.com>
> Cc: Mike Miller<mike.miller@...com>
> Cc: iss_storagedev@...com
> Cc: "James E.J. Bottomley"<JBottomley@...allels.com>
> Cc: linux-scsi@...r.kernel.org

Acked-by: Mike Miller <mike.miller@...com>

> ---
>   drivers/scsi/hpsa.c |    5 +----
>   1 files changed, 1 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
> index ddbf5fe..c867eeb 100644
> --- a/drivers/scsi/hpsa.c
> +++ b/drivers/scsi/hpsa.c
> @@ -3839,10 +3839,7 @@ static void __devinit hpsa_find_board_params(struct ctlr_info *h)
>
>   static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
>   {
> -	if ((readb(&h->cfgtable->Signature[0]) != 'C') ||
> -	    (readb(&h->cfgtable->Signature[1]) != 'I') ||
> -	    (readb(&h->cfgtable->Signature[2]) != 'S') ||
> -	    (readb(&h->cfgtable->Signature[3]) != 'S')) {
> +	if (!check_signature(h->cfgtable->Signature, "CISS", 4)) {
>   		dev_warn(&h->pdev->dev, "not a valid CISS config table\n");
>   		return false;
>   	}

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