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From: walter harms <wharms@bfs.de>
To: Julia Lawall <julia@diku.dk>
Cc: netdev@vger.kernel.org, kernel-janitors@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/14] drivers/net/sb1000.c: delete double assignment
Date: Tue, 26 Oct 2010 11:58:10 +0000	[thread overview]
Message-ID: <4CC6C252.7080905@bfs.de> (raw)
In-Reply-To: <1288088743-3725-6-git-send-email-julia@diku.dk>



Julia Lawall schrieb:
> From: Julia Lawall <julia@diku.dk>
> 
> The other code around these duplicated assignments initializes the 0 1 2
> and 3 elements of an array, so change the initialization of the
> rx_session_id array to do the same.
> 
> A simplified version of the semantic match that finds this problem is as
> follows: (http://coccinelle.lip6.fr/)
> 
> // <smpl>
> @@
> expression i;
> @@
> 
> *i = ...;
>  i = ...;
> // </smpl>
> 
> Signed-off-by: Julia Lawall <julia@diku.dk>
> 
> ---
> This changes the semantics and has not been tested.
> 
>  drivers/net/sb1000.c |    6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/sb1000.c b/drivers/net/sb1000.c
> index a9ae505..66c2f1a 100644
> --- a/drivers/net/sb1000.c
> +++ b/drivers/net/sb1000.c
> @@ -961,9 +961,9 @@ sb1000_open(struct net_device *dev)
>  	lp->rx_error_count = 0;
>  	lp->rx_error_dpc_count = 0;
>  	lp->rx_session_id[0] = 0x50;
> -	lp->rx_session_id[0] = 0x48;
> -	lp->rx_session_id[0] = 0x44;
> -	lp->rx_session_id[0] = 0x42;
> +	lp->rx_session_id[1] = 0x48;
> +	lp->rx_session_id[2] = 0x44;
> +	lp->rx_session_id[3] = 0x42;
>  	lp->rx_frame_id[0] = 0;
>  	lp->rx_frame_id[1] = 0;
>  	lp->rx_frame_id[2] = 0;
> 

/me is surprised that this did not cause more problems.
Is it needed at all ?

re,
 wh


  reply	other threads:[~2010-10-26 11:58 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-26 10:25 [PATCH 0/14] delete double assignment Julia Lawall
2010-10-26 10:25 ` [PATCH 1/14] drivers/staging: " Julia Lawall
2010-10-26 10:25 ` [PATCH 2/14] drivers/usb/gadget/amd5536udc.c: " Julia Lawall
2010-10-26 13:43   ` Thomas Dahlmann
2010-10-26 10:25 ` [PATCH 3/14] drivers/vhost/vhost.c: " Julia Lawall
2010-10-26 11:06   ` Michael S. Tsirkin
2010-10-26 10:25 ` [PATCH 4/14] drivers/staging/brcm80211/brcmfmac/dhd_linux.c: " Julia Lawall
2010-10-26 10:25 ` [PATCH 5/14] drivers/net/sb1000.c: " Julia Lawall
2010-10-26 11:58   ` walter harms [this message]
2010-10-26 12:25     ` Julia Lawall
2010-10-27 19:23   ` David Miller
2010-10-26 10:25 ` [PATCH 6/14] arch/mips/pmc-sierra/yosemite/setup.c: " Julia Lawall
2010-11-09  0:48   ` [PATCH 6/14] arch/mips/pmc-sierra/yosemite/setup.c: delete Ralf Baechle
2010-11-09  7:10     ` [PATCH 6/14] arch/mips/pmc-sierra/yosemite/setup.c: delete double Julia Lawall
2010-10-26 10:25 ` [PATCH 7/14] drivers/net/typhoon.c: delete double assignment Julia Lawall
2010-10-26 11:52   ` David Dillow
2010-10-27 19:24   ` David Miller
2010-10-26 10:25 ` [PATCH 8/14] drivers/platform/x86/thinkpad_acpi.c: " Julia Lawall
2010-10-27  1:09   ` [PATCH 8/14] drivers/platform/x86/thinkpad_acpi.c: delete Henrique de Moraes Holschuh
2010-10-27  1:24     ` [ibm-acpi-devel] [PATCH 8/14] Henrique de Moraes Holschuh
2010-10-27  3:54     ` [PATCH 8/14] drivers/platform/x86/thinkpad_acpi.c: delete Dan Carpenter
2010-10-27 21:42       ` Henrique de Moraes Holschuh
2010-10-27  5:03     ` [PATCH 8/14] drivers/platform/x86/thinkpad_acpi.c: delete double Julia Lawall
2010-10-27  7:18     ` walter harms
2010-10-27  8:11       ` [PATCH 8/14] drivers/platform/x86/thinkpad_acpi.c: delete Dan Carpenter
2010-11-24 16:51   ` Matthew Garrett
2010-10-26 10:25 ` [PATCH 9/14] sound/oss/sb_ess.c: delete double assignment Julia Lawall
2010-10-27  7:13   ` Takashi Iwai
2010-10-26 10:25 ` [PATCH 10/14] drivers/isdn: " Julia Lawall
2010-10-26 11:55   ` walter harms
2010-10-26 12:01     ` Julia Lawall
2010-10-26 12:20     ` Julia Lawall
2010-10-27 19:24       ` David Miller
2010-10-26 10:25 ` [PATCH 11/14] drivers/serial/vr41xx_siu.c: " Julia Lawall
2010-10-26 10:25 ` [PATCH 12/14] drivers/video/omap/blizzard.c: " Julia Lawall
2010-10-26 12:36   ` [PATCH 12/14] drivers/video/omap/blizzard.c: delete double Nicolas Kaiser
2010-10-26 10:25 ` [PATCH 13/14] drivers/scsi/be2iscsi/be_main.c: delete double assignment Julia Lawall
2010-10-26 10:25 ` [PATCH 14/14] drivers/ata/pata_octeon_cf.c: " Julia Lawall

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