linux-kernel - Re: [PATCH 1/1] scsi: fnic: add a space after %p in printf format

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Date:   Mon, 11 Dec 2017 22:22:55 +0000
From:   Bart Van Assche <Bart.VanAssche@....com>
To:     "kartilak@...co.com" <kartilak@...co.com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "nicolas.iooss_linux@....org" <nicolas.iooss_linux@....org>,
        "satishkh@...co.com" <satishkh@...co.com>,
        "sebaddel@...co.com" <sebaddel@...co.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] scsi: fnic: add a space after %p in printf format

On Sun, 2017-12-10 at 20:23 +0100, Nicolas Iooss wrote:
> fnic_fcpio_icmnd_cmpl_handler() displays the value of sc with:
> 
>     FNIC_SCSI_DBG(KERN_INFO...
>         "... sc = 0x%p"
>         "scsi_status ..."
>         ...
> 
> As the literal strings get merged, the function uses %ps instead of the
> intended raw %p format. Fix this by inserting a space.
> 
> Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@....org>
> ---
>  drivers/scsi/fnic/fnic_scsi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
> index 242e2ee494a1..8cbd3c9f0b4c 100644
> --- a/drivers/scsi/fnic/fnic_scsi.c
> +++ b/drivers/scsi/fnic/fnic_scsi.c
> @@ -906,7 +906,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
>  
>  		FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host,
>  			"icmnd_cmpl abts pending "
> -			  "hdr status = %s tag = 0x%x sc = 0x%p"
> +			  "hdr status = %s tag = 0x%x sc = 0x%p "
>  			  "scsi_status = %x residual = %d\n",

Since the %p format specifier already inserts a 0x prefix, shouldn't 0x%p be changed
into %p?

Bart.