netdev - [PATCH v1] usbnet: re-use native hex2bin()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1421962032-25497-1-git-send-email-andy.shevchenko@gmail.com>
Date:	Thu, 22 Jan 2015 23:27:12 +0200
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Oliver Neukum <oneukum@...e.de>, netdev@...r.kernel.org
Cc:	Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v1] usbnet: re-use native hex2bin()

Call hex2bin() library function, instead of doing conversion here.

Signed-off-by: Andy Shevchenko <andy.shevchenko@...il.com>
---
 drivers/net/usb/usbnet.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 3a6770a..449835f 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -160,20 +160,19 @@ EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
 
 int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress)
 {
-	int 		tmp, i;
+	int 		tmp = -1, ret;
 	unsigned char	buf [13];
 
-	tmp = usb_string(dev->udev, iMACAddress, buf, sizeof buf);
-	if (tmp != 12) {
+	ret = usb_string(dev->udev, iMACAddress, buf, sizeof buf);
+	if (ret == 12)
+		tmp = hex2bin(dev->net->dev_addr, buf, 6);
+	if (tmp < 0) {
 		dev_dbg(&dev->udev->dev,
 			"bad MAC string %d fetch, %d\n", iMACAddress, tmp);
-		if (tmp >= 0)
-			tmp = -EINVAL;
-		return tmp;
+		if (ret >= 0)
+			ret = -EINVAL;
+		return ret;
 	}
-	for (i = tmp = 0; i < 6; i++, tmp += 2)
-		dev->net->dev_addr [i] =
-			(hex_to_bin(buf[tmp]) << 4) + hex_to_bin(buf[tmp + 1]);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr);
-- 
1.8.3.101.g727a46b

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html