linux-kernel - RE: [PATCH] scsi: megaraid_sas: Prevent future %p disaster

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Date:	Tue, 10 Feb 2015 22:16:05 +0530
From:	Kashyap Desai <kashyap.desai@...gotech.com>
To:	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Sumit Saxena <sumit.saxena@...gotech.com>,
	Uday Lingala <uday.lingala@...gotech.com>,
	"James E.J. Bottomley" <JBottomley@...allels.com>
Cc:	"PDL,MEGARAIDLINUX" <megaraidlinux.pdl@...gotech.com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: RE: [PATCH] scsi: megaraid_sas: Prevent future %p disaster

Acked-by: Kashyap Desai <kashyap.desai@...gotech.com>

> -----Original Message-----
> From: Rasmus Villemoes [mailto:linux@...musvillemoes.dk]
> Sent: Friday, February 06, 2015 8:04 PM
> To: Kashyap Desai; Sumit Saxena; Uday Lingala; James E.J. Bottomley
> Cc: Rasmus Villemoes; megaraidlinux.pdl@...gotech.com; linux-
> scsi@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: [PATCH] scsi: megaraid_sas: Prevent future %p disaster
>
> There is currently no %po format extension, so currently the letters
"on" are
> simply skipped and the pointer is printed as expected (while missing the
word
> on). However, it is probably only a matter of time before someone comes
up
> with a %po extension, at which point this is likely to fail
spectacularly.
>
> Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
> ---
>  drivers/scsi/megaraid/megaraid_sas_base.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c
> b/drivers/scsi/megaraid/megaraid_sas_base.c
> index ff283d23788a..e7c6b9c946d6 100644
> --- a/drivers/scsi/megaraid/megaraid_sas_base.c
> +++ b/drivers/scsi/megaraid/megaraid_sas_base.c
> @@ -3105,7 +3105,7 @@ megasas_internal_reset_defer_cmds(struct
> megasas_instance *instance)
>  	for (i = 0; i < max_cmd; i++) {
>  		cmd = instance->cmd_list[i];
>  		if (cmd->sync_cmd == 1 || cmd->scmd) {
> -			printk(KERN_NOTICE "megasas: moving
> cmd[%d]:%p:%d:%p"
> +			printk(KERN_NOTICE "megasas: moving
> cmd[%d]:%p:%d:%p "
>  					"on the defer queue as
internal\n",
>  				defer_index, cmd, cmd->sync_cmd, cmd-
> >scmd);
>
> --
> 2.1.3
--
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