From: Joe Perches <joe@perches.com>
To: Sven Eckelmann <sven@narfation.org>, b.a.t.m.a.n@lists.open-mesh.org
Cc: Marek Lindner <mareklindner@neomailbox.ch>,
Simon Wunderlich <sw@simonwunderlich.de>,
Antonio Quartulli <a@unstable.cc>,
netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
linux-kernel@vger.kernel.org
Subject: Re: [B.A.T.M.A.N.] Odd use of %14pM in net/batman-adv/distributed-arp-table.c
Date: Wed, 14 Jun 2017 02:32:16 -0700 [thread overview]
Message-ID: <1497432736.18751.39.camel@perches.com> (raw)
In-Reply-To: <5300874.nPgxNW8UST@bentobox>
On Wed, 2017-06-14 at 10:23 +0200, Sven Eckelmann wrote:
> On Dienstag, 13. Juni 2017 14:51:41 CEST Joe Perches wrote:
> > An output mac address is 17 bytes
>
> [...]
> > but in net/batman-adv/distributed-arp-table.c
>
> [...]
> > %14pM is odd as this should not emit the last byte of the
> > mac address. So given the example above, it would output
> > 00:11:22:33:44
>
> [...]
>
> I completely agree too the "wrong length" part. It is currently not omitting
> the last byte:
Right, I only looked at vsprintf.c and mistook precision for
field_width.
Do you want to provide a patch to convert it to simple %pM's?
OK.
WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe-6d6DIl74uiNBDgjK7y7TUQ@public.gmane.org>
To: Sven Eckelmann <sven-KaDOiPu9UxWEi8DpZVb4nw@public.gmane.org>,
b.a.t.m.a.n-ZwoEplunGu2X36UT3dwllkB+6BGkLq7r@public.gmane.org
Cc: Marek Lindner
<mareklindner-rVWd3aGhH2z5bpWLKbzFeg@public.gmane.org>,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Antonio Quartulli <a@unstable.cc>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Subject: Re: Odd use of %14pM in net/batman-adv/distributed-arp-table.c
Date: Wed, 14 Jun 2017 02:32:16 -0700 [thread overview]
Message-ID: <1497432736.18751.39.camel@perches.com> (raw)
In-Reply-To: <5300874.nPgxNW8UST@bentobox>
On Wed, 2017-06-14 at 10:23 +0200, Sven Eckelmann wrote:
> On Dienstag, 13. Juni 2017 14:51:41 CEST Joe Perches wrote:
> > An output mac address is 17 bytes
>
> [...]
> > but in net/batman-adv/distributed-arp-table.c
>
> [...]
> > %14pM is odd as this should not emit the last byte of the
> > mac address. So given the example above, it would output
> > 00:11:22:33:44
>
> [...]
>
> I completely agree too the "wrong length" part. It is currently not omitting
> the last byte:
Right, I only looked at vsprintf.c and mistook precision for
field_width.
Do you want to provide a patch to convert it to simple %pM's?
OK.
next prev parent reply other threads:[~2017-06-14 9:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-13 21:51 [B.A.T.M.A.N.] Odd use of %14pM in net/batman-adv/distributed-arp-table.c Joe Perches
2017-06-13 21:51 ` Joe Perches
2017-06-13 21:51 ` Joe Perches
2017-06-14 8:23 ` [B.A.T.M.A.N.] " Sven Eckelmann
2017-06-14 9:32 ` Joe Perches [this message]
2017-06-14 9:32 ` Joe Perches
2017-06-14 9:33 ` [B.A.T.M.A.N.] [PATCH] batman-adv: Remove unnecessary length qualifier in %14pM Joe Perches
2017-06-14 9:33 ` Joe Perches
2017-06-14 9:33 ` Joe Perches
2017-06-14 19:20 ` [B.A.T.M.A.N.] " David Miller
2017-06-14 19:20 ` David Miller
2017-06-14 19:41 ` [B.A.T.M.A.N.] " Sven Eckelmann
2017-06-14 19:41 ` Sven Eckelmann
2017-06-14 19:41 ` Sven Eckelmann
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