> Hello,
>
> I'm writing a kernel module, and it involves traversing the proc list searching for
>the right structure,
> however, when I use SLIST_NEXT(p, p_list) in the program, I get a warning when I
>compile it:
>
> warning: statement with mo effect
>
> What am I doing wrong? I've read the manpages on queue and looked at the proc
>structure.
>
> Here's the code:
> int
> prfw_setflags(p, uap)
> struct proc *p;
> struct prfw_setflags_args *uap;
> {
> ...
> if (uap->id) {
> while (uap->id != p->p_pid)
> LIST_NEXT(p, p_list);
> }
>
> ...
> }
The proper way would be:
p = LIST_NEXT(p, p_list);
Regards,
Eugene
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