hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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

This patch changes the type of the third parameter 'length' of the 
raw_send_hdrinc() function from 'int' to 'size_t'.
This makes sense since this function is only ever called from one 
location, and the value passed as the third parameter in that location is 
itself of type size_t, so this makes the recieving functions parameter 
type match. Also, inside raw_send_hdrinc() the 'length' variable is 
used in comparisons with unsigned values and passed as parameter to 
functions expecting unsigned values (it's used in a single comparison with 
a signed value, but that one can never actually be negative so the patch 
also casts that one to size_t to stop gcc worrying, and it is passed in a 
single instance to memcpy_fromiovecend() which expects a signed int, but 
as far as I can see that's not a problem since the value of 'length' 
shouldn't ever exceed the value of a signed int).

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 23:00:34 -07:00 committed by David S. Miller
parent 93765d8a43
commit f7d7fc0322
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/ipv4/raw.c
View File

@ -259,7 +259,7 @@ int raw_rcv(struct sock *sk, struct sk_buff *skb)
return 0;
}
static int raw_send_hdrinc(struct sock *sk, void *from, int length,
static int raw_send_hdrinc(struct sock *sk, void *from, size_t length,
struct rtable *rt,
unsigned int flags)
{
@ -298,7 +298,7 @@ static int raw_send_hdrinc(struct sock *sk, void *from, int length,
goto error_fault;
/* We don't modify invalid header */
if (length >= sizeof(*iph) && iph->ihl * 4 <= length) {
if (length >= sizeof(*iph) && iph->ihl * 4U <= length) {
if (!iph->saddr)
iph->saddr = rt->rt_src;
iph->check = 0;