Re: [PATCH net-next 01/17] net: Copy slab data for sendmsg(MSG_SPLICE_PAGES)
From: David Howells
Date: Sat Jun 17 2023 - 02:44:35 EST
Simon Horman <simon.horman@xxxxxxxxxxxx> wrote:
> > + cache = get_cpu_ptr(&skb_splice_frag_cache);
...
> > + put_cpu_ptr(skb_splice_frag_cache);
>
> Hi David,
>
> I don't think it makes any difference at run-time.
> But to keep Sparse happy, perhaps this ought to be put_cpu_var()
Actually, the problem is a missing "&". I think I should use put_cpu_ptr() to
match get_cpu_ptr(). It doesn't crash because the argument is ignored.
David