From: Sven Eckelmann <sven@narfation.org>
To: Joe Perches <joe@perches.com>
Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org,
Antonio Quartulli <a@unstable.cc>,
davem@davemloft.net
Subject: Re: [B.A.T.M.A.N.] [PATCH 17/17] batman-adv: Avoid precedence issues in macros
Date: Fri, 28 Oct 2016 23:27:31 +0200 [thread overview]
Message-ID: <4261316.fWqmHPy2zE@sven-edge> (raw)
In-Reply-To: <1477689186.23018.1.camel@perches.com>
[-- Attachment #1: Type: text/plain, Size: 1209 bytes --]
On Freitag, 28. Oktober 2016 14:13:06 CEST Joe Perches wrote:
> On Thu, 2016-10-27 at 21:01 +0200, Simon Wunderlich wrote:
> > From: Sven Eckelmann <sven@narfation.org>
> >
> > It must be avoided that arguments to a macro are evaluated ungrouped (which
> > enforces normal operator precendence). Otherwise the result of the macro
> > is not well defined.
>
> Curiosity:
>
> in net/batman-adv/tp_meter.c
[...]
> orig_node = batadv_orig_hash_find(bat_priv, tp_vars->other_end);
> if (unlikely(!orig_node)) {
> err = BATADV_TP_REASON_DST_UNREACHABLE;
> tp_vars->reason = err;
> goto out;
> }
>
> primary_if = batadv_primary_if_get_selected(bat_priv);
> if (unlikely(!primary_if)) {
> err = BATADV_TP_REASON_DST_UNREACHABLE;
> goto out;
> }
>
> err is not used in the out block
>
> Is the last if block supposed to set tp_vars->reason to err?
This seems to be unrelated to this patch.
But yes, looks to me like it is missing. Do you want to propose a patch or
should I do? Just make sure you Cc Antonio Quartulli <a@unstable.cc> (and of
course b.a.t.m.a.n@lists.open-mesh.org). He is the original author of
33a3bb4a3345 ("batman-adv: throughput meter implementation").
Kind regards,
Sven
[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 801 bytes --]
next prev parent reply other threads:[~2016-10-28 21:27 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-27 19:01 [B.A.T.M.A.N.] [PATCH 00/17] pull request for net-next: batman-adv 2016-10-27 Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 01/17] batman-adv: Start new development cycle Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 02/17] batman-adv: Add B.A.T.M.A.N. V sysfs files to README Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 03/17] batman-adv: Add network_coding and mcast " Simon Wunderlich
2016-10-29 10:33 ` Jiri Pirko
2016-10-29 10:37 ` Sven Eckelmann
2016-10-29 10:56 ` Jiri Pirko
2016-10-29 11:46 ` Sven Eckelmann
2016-10-29 13:51 ` Jiri Pirko
2018-03-27 15:43 ` Linus Lüssing
2018-05-07 6:34 ` Sven Eckelmann
2018-05-20 4:37 ` Sven Eckelmann
2018-05-20 6:19 ` Jiri Pirko
2018-08-04 9:24 ` Antonio Quartulli
2018-08-04 9:36 ` Jiri Pirko
2018-08-04 11:19 ` Antonio Quartulli
2018-08-04 11:52 ` Jiri Pirko
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 04/17] batman-adv: Add dat, mcast, nc and neighbor debugfs " Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 05/17] batman-adv: Document new nc, mcast and tpmeter log levels Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 06/17] batman-adv: Remove unused function batadv_hash_delete Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 07/17] batman-adv: Move batadv_sum_counter to soft-interface.c Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 08/17] batman-adv: Remove unused batadv_icmp_user_cmd_type Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 09/17] batman-adv: fix batadv_forw_packet kerneldoc for list attribute Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 10/17] batman-adv: remove unsed argument from batadv_dbg_arp() function Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 11/17] batman-adv: Allow selecting BATMAN V if CFG80211 is not built Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 12/17] batman-adv: Less function calls in batadv_is_ap_isolated() after error detection Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 13/17] batman-adv: Remove needless init of variables on stack Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 14/17] batman-adv: Use proper name for fragments list head Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 15/17] batman-adv: Use proper name for gateway " Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 16/17] batman-adv: Use octal permissions instead of macros Simon Wunderlich
2016-10-27 19:01 ` [B.A.T.M.A.N.] [PATCH 17/17] batman-adv: Avoid precedence issues in macros Simon Wunderlich
2016-10-28 21:13 ` Joe Perches
2016-10-28 21:27 ` Sven Eckelmann [this message]
2016-10-29 1:56 ` Joe Perches
2016-10-29 6:52 ` Sven Eckelmann
2016-10-29 20:28 ` [B.A.T.M.A.N.] [PATCH 00/17] pull request for net-next: batman-adv 2016-10-27 David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4261316.fWqmHPy2zE@sven-edge \
--to=sven@narfation.org \
--cc=a@unstable.cc \
--cc=b.a.t.m.a.n@lists.open-mesh.org \
--cc=davem@davemloft.net \
--cc=joe@perches.com \
--cc=netdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).