Re: [PATCH] vxlan: Wrong type passed to %pIS

From: Rasmus Villemoes
Date: Sat Feb 07 2015 - 07:34:51 EST


On Sat, Feb 07 2015, Cong Wang <xiyou.wangcong@xxxxxxxxx> wrote:

> On Fri, Feb 6, 2015 at 6:17 PM, Rasmus Villemoes
> <linux@xxxxxxxxxxxxxxxxxx> wrote:
>> src_ip is a pointer to a union vxlan_addr, one member of which is a
>> struct sockaddr. Passing a pointer to src_ip is wrong; one should pass
>> the value of src_ip itself. Since %pIS formally expects something of
>> type struct sockaddr*, let's pass a pointer to the appropriate union
>> member, though this of course doesn't change the generated code.
>>
>
>
> It is a union, this doesn't harm.
>

Just to be clear: This fixes a real bug. The minimal fix had been

- src_mac, &rdst->remote_ip, &src_ip);
+ src_mac, &rdst->remote_ip, src_ip);

but I through in the cosmetic improvements while the line needed
changing anyway.

> Since you are on it, there is another similar place in vxlan too.

... which is why I didn't change that other occurrence.

Rasmus
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/