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Date:   Thu, 18 Jun 2020 12:18:01 -0400
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Network Development <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>
Subject: Re: [PATCH net] selftests/net: report etf errors correctly

On Thu, Jun 18, 2020 at 11:54 AM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Thu, 18 Jun 2020 10:55:49 -0400 Willem de Bruijn wrote:
> > +             switch (err->ee_errno) {
> > +             case ECANCELED:
> > +                     if (err->ee_code != SO_EE_CODE_TXTIME_MISSED)
> > +                             error(1, 0, "errqueue: unknown ECANCELED %u\n",
> > +                                         err->ee_code);
> > +                     reason = "missed txtime";
> > +             break;
> > +             case EINVAL:
> > +                     if (err->ee_code != SO_EE_CODE_TXTIME_INVALID_PARAM)
> > +                             error(1, 0, "errqueue: unknown EINVAL %u\n",
> > +                                         err->ee_code);
> > +                     reason = "invalid txtime";
> > +             break;
> > +             default:
> > +                     error(1, 0, "errqueue: errno %u code %u\n",
> > +                           err->ee_errno, err->ee_code);
> > +             };
> >
> >               tstamp = ((int64_t) err->ee_data) << 32 | err->ee_info;
> >               tstamp -= (int64_t) glob_tstart;
> >               tstamp /= 1000 * 1000;
> > -             fprintf(stderr, "send: pkt %c at %" PRId64 "ms dropped\n",
> > -                             data[ret - 1], tstamp);
> > +             fprintf(stderr, "send: pkt %c at %" PRId64 "ms dropped: %s\n",
> > +                             data[ret - 1], tstamp, reason);
>
> Hi Willem! Checkpatch is grumpy about some misalignment here:
>
> CHECK: Alignment should match open parenthesis
> #67: FILE: tools/testing/selftests/net/so_txtime.c:187:
> +                               error(1, 0, "errqueue: unknown ECANCELED %u\n",
> +                                           err->ee_code);
>
> CHECK: Alignment should match open parenthesis
> #73: FILE: tools/testing/selftests/net/so_txtime.c:193:
> +                               error(1, 0, "errqueue: unknown EINVAL %u\n",
> +                                           err->ee_code);
>
> CHECK: Alignment should match open parenthesis
> #87: FILE: tools/testing/selftests/net/so_txtime.c:205:
> +               fprintf(stderr, "send: pkt %c at %" PRId64 "ms dropped: %s\n",
> +                               data[ret - 1], tstamp, reason);

Thanks for the heads-up, Jakub.

I decided to follow the convention in the file, which is to align with
the start of the string.

Given that, do you want me to resubmit with the revised offset? I'm
fine either way, of course.

Also, which incantation of checkpatch do you use? I did run
checkpatch, without extra args, and it did not warn me about this.

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