David Brownell schrieb:
--- On Sat, 8/28/10, Julia Lawall <julia@xxxxxxx> wrote:
From: Julia Lawall <julia@xxxxxxx>
Subject: Re: [PATCH 2/7] drivers/usb/gadget/amd5536udc.c: Remove double test
To: "Dan Carpenter" <error27@xxxxxxxxx>
Cc: "Thomas Dahlmann" <dahlmann.thomas@xxxxxxxx>, kernel-janitors@xxxxxxxxxxxxxxx, "David Brownell" <dbrownell@xxxxxxxxxxxxxxxxxxxxx>, "Greg Kroah-Hartman" <gregkh@xxxxxxx>, linux-geode@xxxxxxxxxxxxxxxxxxx, linux-usb@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
Date: Saturday, August 28, 2010, 9:48 AM
The same expression is tested twice
and the result is the same each time.
Instead test for use_dma_ppb as in the test above.
The sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@expression@
expression E;
@@
(
* E
|| ... || E
|
* E
&& ... && E
)
// </smpl>
Signed-off-by: Julia Lawall <julia@xxxxxxx>
OK by me unless the maintainer/author objects.
Thank you!
- Dave
This fix is OK. Thank you for figuring this out!
- Thomas
---
drivers/usb/gadget/amd5536udc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/amd5536udc.c
b/drivers/usb/gadget/amd5536udc.c
index 731150d..6c40c99 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -203,7 +203,7 @@ static void print_regs(struct udc
*dev)
DBG(dev, "DMA
mode = PPBNDU (packet per
buffer "
"WITHOUT desc. update)\n");
dev_info(&dev->pdev->dev, "DMA mode (%s)\n",
"PPBNDU");
- } else if (use_dma &&
use_dma_ppb_du && use_dma_ppb_du) {
+ } else if (use_dma &&
use_dma_ppb && use_dma_ppb_du) {
DBG(dev, "DMA
mode = PPBDU (packet per
buffer "
"WITH desc. update)\n");
dev_info(&dev->pdev->dev, "DMA mode (%s)\n",
"PPBDU");
--
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