linux-kernel - Re: [PATCH 1/1] drivers/block/pktcdvd.c : avoid useless memset

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Date:	Sun, 22 Jun 2008 09:26:55 -0700
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	JAILLET <jaillet.christophe@...adoo.fr>
Cc:	petero2@...ia.com, linux <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] drivers/block/pktcdvd.c : avoid useless memset

On Sun, 22 Jun 2008 15:34:19 +0200 JAILLET wrote:

> From: Christophe Jaillet <jaillet.christophe@...adoo.fr>
> 
> Hi, here is a patch against linux/drivers/block/pktcdvd.c which :
> 
> 1) Avoid to 'memset(...,0, ...)' before calling 'init_cdrom_command' 
> because this function already does it.
> 
> 
> Signed-off-by: Christophe Jaillet <jaillet.christophe@...adoo.fr>
> 
> ---
> diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
> index 3ba1df9..8369ebc 100644
> --- a/drivers/block/pktcdvd.c
> +++ b/drivers/block/pktcdvd.c
> @@ -2079,7 +2079,6 @@ static noinline_for_stack int 
> pkt_write_caching(struct pktcdvd_device *pd,
> unsigned char buf[64];
> int ret;
> 
> - memset(buf, 0, sizeof(buf));
> init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_READ);
> cgc.sense = &sense;
> cgc.buflen = pd->mode_offset + 12;
> @@ -2126,7 +2125,6 @@ static noinline_for_stack int 
> pkt_get_max_speed(struct pktcdvd_device *pd,
> unsigned char *cap_buf;
> int ret, offset;
> 
> - memset(buf, 0, sizeof(buf));
> cap_buf = &buf[sizeof(struct mode_page_header) + pd->mode_offset];
> init_cdrom_command(&cgc, buf, sizeof(buf), CGC_DATA_UNKNOWN);
> cgc.sense = &sense;

Looks like tbird ate all of the whitespace.
You can see if Documentation/email-clients.txt has info in it that
would help you, then resend the patch.


---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/
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