linux-kernel - Re: [PATCH] scsi: 3w-{sas,9xxx}: Use unsigned char for cdb

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Date:   Tue, 23 Oct 2018 21:29:03 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Nathan Chancellor <natechancellor@...il.com>
Cc:     Adam Radford <aradford@...il.com>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: 3w-{sas,9xxx}: Use unsigned char for cdb


Nathan,

> Clang warns a few times:
>
> drivers/scsi/3w-sas.c:386:11: warning: implicit conversion from 'int' to
> 'char' changes value from 128 to -128 [-Wconstant-conversion]
>         cdb[4] = TW_ALLOCATION_LENGTH; /* allocation length */
>                ~ ^~~~~~~~~~~~~~~~~~~~
>
> Update cdb's type to unsigned char, which matches the type of the cdb
> member in struct TW_Command_Apache.

Applied to 4.20/scsi-queue. Thank you.

-- 
Martin K. Petersen	Oracle Linux Engineering