From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 20 Nov 2007 06:46:51 +0000 (-0800)
Subject: [TUN]: Use iov_length()
X-Git-Tag: v2.6.25-rc1~1162^2~1379
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=52427c9d11477d5a2633d81050f52523decf9eff;p=linux-2.6-omap-h63xx.git

[TUN]: Use iov_length()

Use iov_length() instead of tun's homemade iov_total().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index f8b8c71187a..5db4df46004 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -292,17 +292,6 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv,
 	return count;
 }
 
-static inline size_t iov_total(const struct iovec *iv, unsigned long count)
-{
-	unsigned long i;
-	size_t len;
-
-	for (i = 0, len = 0; i < count; i++)
-		len += iv[i].iov_len;
-
-	return len;
-}
-
 static ssize_t tun_chr_aio_write(struct kiocb *iocb, const struct iovec *iv,
 			      unsigned long count, loff_t pos)
 {
@@ -313,7 +302,7 @@ static ssize_t tun_chr_aio_write(struct kiocb *iocb, const struct iovec *iv,
 
 	DBG(KERN_INFO "%s: tun_chr_write %ld\n", tun->dev->name, count);
 
-	return tun_get_user(tun, (struct iovec *) iv, iov_total(iv, count));
+	return tun_get_user(tun, (struct iovec *) iv, iov_length(iv, count));
 }
 
 /* Put packet to the user space buffer */
@@ -364,7 +353,7 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv,
 
 	DBG(KERN_INFO "%s: tun_chr_read\n", tun->dev->name);
 
-	len = iov_total(iv, count);
+	len = iov_length(iv, count);
 	if (len < 0)
 		return -EINVAL;