On Sun, Jun 04, 2023 at 11:17:56AM +0200, Willem de Bruijn wrote: > > On Sat, Jun 03, 2023 at 10:21:50AM +0200, Willem de Bruijn wrote: > > > On Fri, Jun 2, 2023 at 6:31 PM Breno Leitao <leitao@xxxxxxxxxx> wrote: > > > > Signed-off-by: Breno Leitao <leitao@xxxxxxxxxx> > > > > > > Please check the checkpatch output > > > > > > https://patchwork.hopto.org/static/nipa/753609/13265673/checkpatch/stdout > > > > I am checking my current checkpatch before sending the patch, but I am > > not seeing the problems above. > > > > My tree is at 44c026a73be8038 ("Linux 6.4-rc3"), and I am not able to > > reproduce the problems above. > > > > $ scripts/checkpatch.pl v5/v5-0001-net-ioctl-Use-kernel-memory-on-protocol-ioctl-cal.patch > > total: 0 errors, 0 warnings, 0 checks, 806 lines checked > > v5/v5-0001-net-ioctl-Use-kernel-memory-on-protocol-ioctl-cal.patch has no obvious style problems and is ready for submission. > > > > Let me investigate what options I am missing when running checkpatch. > > The reference is to the checkpatch as referenced by patchwork: > > https://patchwork.kernel.org/project/netdevbpf/patch/20230602163044.1820619-1-leitao@xxxxxxxxxx/ > > The 80 character limit is a soft limit. But also note the CHECK > statements on whitespace. Right. In order to enable the "CHECK" statments, we need to pass the "--subjective" parameter to checpatch.pl That said, I am able to reproduce the same output now, using the following command line: $ scripts/checkpatch.pl --subjective --max-line-length=80 > > > > +/* A wrapper around sock ioctls, which copies the data from userspace > > > > + * (depending on the protocol/ioctl), and copies back the result to userspace. > > > > + * The main motivation for this function is to pass kernel memory to the > > > > + * protocol ioctl callbacks, instead of userspace memory. > > > > + */ > > > > +int sk_ioctl(struct sock *sk, unsigned int cmd, void __user *arg) > > > > +{ > > > > + int rc = 1; > > > > + > > > > + if (sk_is_ipmr(sk)) > > > > + rc = ipmr_sk_ioctl(sk, cmd, arg); > > > > + else if (sk_is_icmpv6(sk)) > > > > + rc = ip6mr_sk_ioctl(sk, cmd, arg); > > > > + else if (sk_is_phonet(sk)) > > > > + rc = phonet_sk_ioctl(sk, cmd, arg); > > > > > > Does this handle all phonet ioctl cases correctly? > > > > > > Notably pn_socket_ioctl has a SIOCPNGETOBJECT that reads and writes a u16. > > > > We are not touching "struct proto_ops" in this patch at all. And > > pn_socket_ioctl() is part of "struct proto_ops". > > > > const struct proto_ops phonet_stream_ops = { > > ... > > .ioctl = pn_socket_ioctl, > > } > > > > That said, all the "struct proto_ops" ioctl calls backs continue to use > > "unsigned long arg" with userspace information, at least for now. > > Ok. Perhaps good to call out in the commit message that this does not > convert all protocol ioctl callbacks. Sure, let me send a V6 with this information in the patch summary.
