linux-kernel - Re: [PATCH v2 2/2] scsi: qedi: Fix SYSFS_FLAG_FW_SEL

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Date:   Mon, 29 Nov 2021 22:59:58 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-kernel@...r.kernel.org, kernel test robot <lkp@...el.com>,
        Nilesh Javali <njavali@...vell.com>,
        Manish Rangankar <mrangankar@...vell.com>,
        GR-QLogic-Storage-Upstream@...vell.com (supporter:QLOGIC QL41xxx ISCSI
        DRIVER), "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org (open list:QLOGIC QL41xxx ISCSI DRIVER)
Subject: Re: [PATCH v2 2/2] scsi: qedi: Fix SYSFS_FLAG_FW_SEL_BOOT formatting


Florian,

> The format used for formatting SYSFS_FLAG_FW_SEL_BOOT creates the
> following warning:
>
> drivers/scsi/qedi/qedi_main.c:2259:35: warning: format specifies type
> 'char' but the argument has type 'int' [-Wformat]
>                    rc = snprintf(buf, 3, "%hhd\n",
> SYSFS_FLAG_FW_SEL_BOOT);
>
> Fix this to cast the constant as an u8 since the intention is to print
> it via sysfs as a byte.

The other occurrences of SYSFS_FLAG_FW_SEL_BOOT use "%d". Since %hh is
deprecated I suggest you just fix the snprintf().

-- 
Martin K. Petersen	Oracle Linux Engineering