From: walter harms <wharms@bfs.de>
To: Julia Lawall <julia@diku.dk>
Cc: Karsten Keil <isdn@linux-pingi.de>,
kernel-janitors@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 10/14] drivers/isdn: delete double assignment
Date: Tue, 26 Oct 2010 13:55:44 +0200 [thread overview]
Message-ID: <4CC6C1C0.8020005@bfs.de> (raw)
In-Reply-To: <1288088743-3725-11-git-send-email-julia@diku.dk>
Julia Lawall schrieb:
> From: Julia Lawall <julia@diku.dk>
>
> Delete successive assignments to the same location. In the first case, the
> hscx array has two elements, so change the assignment to initialize the
> second one. In the second case, the two assignments are simply identical.
>
> 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>
>
> ---
> In the first case, the patch changes the semantics and has not been tested.
>
> drivers/isdn/hardware/mISDN/mISDNinfineon.c | 2 +-
> drivers/isdn/hisax/l3_1tr6.c | 2 --
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/isdn/hardware/mISDN/mISDNinfineon.c b/drivers/isdn/hardware/mISDN/mISDNinfineon.c
> index af25e1f..e90db88 100644
> --- a/drivers/isdn/hardware/mISDN/mISDNinfineon.c
> +++ b/drivers/isdn/hardware/mISDN/mISDNinfineon.c
> @@ -563,7 +563,7 @@ reset_inf(struct inf_hw *hw)
> mdelay(10);
> hw->ipac.isac.adf2 = 0x87;
> hw->ipac.hscx[0].slot = 0x1f;
> - hw->ipac.hscx[0].slot = 0x23;
> + hw->ipac.hscx[1].slot = 0x23;
> break;
> case INF_GAZEL_R753:
> val = inl((u32)hw->cfg.start + GAZEL_CNTRL);
> diff --git a/drivers/isdn/hisax/l3_1tr6.c b/drivers/isdn/hisax/l3_1tr6.c
> index b0554f8..a5c76fc 100644
> --- a/drivers/isdn/hisax/l3_1tr6.c
> +++ b/drivers/isdn/hisax/l3_1tr6.c
> @@ -164,8 +164,6 @@ l3_1tr6_setup(struct l3_process *pc, u_char pr, void *arg)
> char tmp[80];
> struct sk_buff *skb = arg;
>
> - p = skb->data;
> -
> /* Channel Identification */
> p = skb->data;
> if ((p = findie(p, skb->len, WE0_chanID, 0))) {
>
perhaps you can move the next assignment out of if also ?
p = findie(skb->data, skb->len, WE0_chanID, 0);
if (p) { ....
re,
wh
> --
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>
>
next prev parent reply other threads:[~2010-10-26 11:55 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
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 ` Ralf Baechle
2010-11-09 7:10 ` Julia Lawall
2010-10-26 10:25 ` [PATCH 7/14] drivers/net/typhoon.c: " 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 ` Henrique de Moraes Holschuh
2010-10-27 1:24 ` [ibm-acpi-devel] " Henrique de Moraes Holschuh
2010-10-27 3:54 ` Dan Carpenter
2010-10-27 21:42 ` Henrique de Moraes Holschuh
2010-10-27 5:03 ` Julia Lawall
2010-10-27 7:18 ` walter harms
2010-10-27 8:11 ` Dan Carpenter
2010-11-24 16:51 ` Matthew Garrett
2010-10-26 10:25 ` [PATCH 9/14] sound/oss/sb_ess.c: " 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 [this message]
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 ` Nicolas Kaiser
2010-10-26 10:25 ` [PATCH 13/14] drivers/scsi/be2iscsi/be_main.c: " Julia Lawall
2010-10-26 10:25 ` [PATCH 14/14] drivers/ata/pata_octeon_cf.c: " Julia Lawall
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