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[IPV4]: [3/4] signed vs unsigned cleanup in net/ipv4/raw.c

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This patch changes the type of the local variable 'i' in 
raw_probe_proto_opt() from 'int' to 'unsigned int'. The only use of 'i' in 
this function is as a counter in a for() loop and subsequent index into 
the msg->msg_iov[] array.
Since 'i' is compared in a loop to the unsigned variable msg->msg_iovlen 
gcc -W generates this warning : 

net/ipv4/raw.c:340: warning: comparison between signed and unsigned

Changing 'i' to unsigned silences this warning and is safe since the array 
index can never be negative anyway, so unsigned int is the logical type to 
use for 'i' and also enables a larger msg_iov[] array (but I don't know if 
that will ever matter).

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesper Juhl 2005-06-18 23:00:15 -07:00 committed by David S. Miller
parent 926d4b8122
commit 93765d8a43
1 changed files with 1 additions and 1 deletions
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net/ipv4/raw.c
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@ -332,7 +332,7 @@ static void raw_probe_proto_opt(struct flowi *fl, struct msghdr *msg)
u8 __user *type = NULL;
u8 __user *code = NULL;
int probed = 0;
int i;
unsigned int i;
if (!msg->msg_iov)
return;