From: Kees Cook <keescook@chromium.org>
To: Francis Laniel <laniel_francis@privacyrequired.com>
Cc: Jakub Kicinski <kuba@kernel.org>,
linux-hardening@vger.kernel.org, davem@davemloft.net
Subject: Re: [RFC][PATCH v2 2/3] Modify return value of nla_strlcpy to match that of strscpy.
Date: Tue, 20 Oct 2020 10:23:09 -0700 [thread overview]
Message-ID: <202010201022.B016A3A41A@keescook> (raw)
In-Reply-To: <6912124.fRD6ipzQbq@machine>
On Tue, Oct 20, 2020 at 12:28:49PM +0200, Francis Laniel wrote:
> Le mardi 20 octobre 2020, 01:34:49 CEST Jakub Kicinski a écrit :
> > On Mon, 19 Oct 2020 16:01:27 -0700 Kees Cook wrote:
> > > On Mon, Oct 19, 2020 at 09:43:55AM -0700, Jakub Kicinski wrote:
> > > > On Mon, 19 Oct 2020 17:23:30 +0200 laniel_francis@privacyrequired.com
> > > >
> > > > wrote:
> > > > > -size_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t
> > > > > dstsize)
> > > > > +ssize_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t
> > > > > dstsize)
> > > > >
> > > > > {
> > > > >
> > > > > + size_t len;
> > > > > + ssize_t ret;
> > > > >
> > > > > size_t srclen = nla_len(nla);
> > > > > char *src = nla_data(nla);
> > > >
> > > > Sort local variables long to short.
> > >
> > > Specifically, "reverse christmas tree":
> > > size_t srclen = nla_len(nla);
> > > char *src = nla_data(nla);
> > > size_t len;
> > > ssize_t ret;
> >
> > Or even
> >
> > size_t srclen = nla_len(nla);
> > char *src = nla_data(nla);
> > ssize_t ret;
> > size_t len;
> >
> > ;)
>
> I reordered the variables names for the v3.
> Just to know, is it a new rule? Because scripts/checkpatch.pl did not report
> anything and I was not aware of it.
This is specific to netdev, but I actually can't find reference to this
in either Documentation/process/coding-style.rst nor
Documentation/networking/netdev-FAQ.rst.
I swear I found this written down before, but it eludes me now.
--
Kees Cook
next prev parent reply other threads:[~2020-10-20 17:23 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-16 12:52 [RFC][PATCH v1] Fix and rename nla_strlcpy to nla_strcpy laniel_francis
2020-10-16 12:52 ` [PATCH v1 1/3] Fix unefficient call to memset before memcpu in nla_strlcpy laniel_francis
2020-10-16 23:19 ` Kees Cook
2020-10-17 8:50 ` Francis Laniel
2020-10-16 23:29 ` Jann Horn
2020-10-17 8:50 ` Francis Laniel
2020-10-16 12:52 ` [PATCH v1 2/3] Modify return value of nla_strlcpy to match that of strscpy laniel_francis
2020-10-16 23:23 ` Kees Cook
2020-10-17 8:53 ` Francis Laniel
2020-10-17 0:41 ` Jann Horn
2020-10-17 8:56 ` Francis Laniel
2020-10-16 12:52 ` [PATCH v1 3/3] Rename nla_strlcpy to nla_strcpy laniel_francis
2020-10-16 23:18 ` Kees Cook
2020-10-19 15:23 ` [RFC][PATCH v2 0/3] Fix inefficiences and rename nla_strlcpy laniel_francis
2020-10-19 15:23 ` [RFC][PATCH v2 1/3] Fix unefficient call to memset before memcpu in nla_strlcpy laniel_francis
2020-10-19 15:23 ` [RFC][PATCH v2 2/3] Modify return value of nla_strlcpy to match that of strscpy laniel_francis
2020-10-19 16:43 ` Jakub Kicinski
2020-10-19 23:01 ` Kees Cook
2020-10-19 23:34 ` Jakub Kicinski
2020-10-20 10:28 ` Francis Laniel
2020-10-20 17:23 ` Kees Cook [this message]
2020-10-20 17:19 ` Kees Cook
2020-10-20 13:05 ` Francis Laniel
2020-10-20 10:17 ` Francis Laniel
2020-10-19 15:23 ` [RFC][PATCH v2 3/3] Rename nla_strlcpy to nla_strcpy laniel_francis
2020-10-19 16:45 ` [RFC][PATCH v2 0/3] Fix inefficiences and rename nla_strlcpy Jakub Kicinski
2020-10-19 22:58 ` Kees Cook
2020-10-19 23:34 ` Jakub Kicinski
2020-10-20 10:18 ` Francis Laniel
2020-10-19 23:03 ` Kees Cook
2020-10-20 13:06 ` Francis Laniel
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