From: "Morten Brørup" <mb@smartsharesystems.com>
To: "Stephen Hemminger" <stephen@networkplumber.org>, <dev@dpdk.org>
Cc: "Isaac Boukris" <iboukris@gmail.com>
Subject: RE: [PATCH v3 2/5] dumpcap: allow multiple invocations
Date: Thu, 9 Nov 2023 08:50:10 +0100 [thread overview]
Message-ID: <98CBD80474FA8B44BF855DF32C47DC35E9EFFA@smartserver.smartshare.dk> (raw)
In-Reply-To: <20231108183557.381955-3-stephen@networkplumber.org>
> From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> Sent: Wednesday, 8 November 2023 19.36
>
> If dumpcap is run twice with each instance pointing a different
> interface, it would fail because of overlap in ring a pool names.
> Fix by putting process id in the name.
>
> Fixes: cbb44143be74 ("app/dumpcap: add new packet capture application")
> Reported-by: Isaac Boukris <iboukris@gmail.com>
> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
> ---
Minor detail: getpid() returns int, so prefer %d over %u.
[...]
> rte_exit(EXIT_FAILURE,
> "Packet dump enable on %u:%s failed %s\n",
> intf->port, intf->name,
> - rte_strerror(-ret));
> + rte_strerror(rte_errno));
This bugfix (the line above, not the patch itself) supports Tyler's proposal to standardize on returning -1 with rte_errno set on failure, instead of some functions returning -errno. Our dual convention for function return values will cause many bugs like this.
With %u or %d,
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>
next prev parent reply other threads:[~2023-11-09 7:50 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-21 4:23 [PATCH 0/4] pcapng fixes Stephen Hemminger
2023-09-21 4:23 ` [PATCH 1/4] pdump: fix setting rte_errno on mp error Stephen Hemminger
2023-09-21 4:23 ` [PATCH 2/4] dumpcap: allow multiple invocations Stephen Hemminger
2023-09-21 6:22 ` Morten Brørup
2023-09-21 7:10 ` Isaac Boukris
2023-11-07 2:34 ` Stephen Hemminger
2023-09-21 4:23 ` [PATCH 3/4] pcapng: change timestamp argument to write_stats Stephen Hemminger
2023-09-21 4:23 ` [PATCH 4/4] pcapng: move timestamp calculation into pdump Stephen Hemminger
2023-10-02 8:15 ` David Marchand
2023-10-04 17:13 ` Stephen Hemminger
2023-10-06 9:10 ` David Marchand
2023-10-06 14:59 ` Kevin Traynor
2023-10-05 23:06 ` [PATCH v2 0/4] dumpcap and pcapng fixes Stephen Hemminger
2023-10-05 23:06 ` [PATCH v2 1/4] pdump: fix setting rte_errno on mp error Stephen Hemminger
2023-10-05 23:06 ` [PATCH v2 2/4] dumpcap: allow multiple invocations Stephen Hemminger
2023-10-05 23:06 ` [PATCH v2 3/4] pcapng: modify timestamp calculation Stephen Hemminger
2023-10-05 23:06 ` [PATCH v2 4/4] test: cleanups to pcapng test Stephen Hemminger
2023-11-08 18:35 ` [PATCH v3 0/5] dumpcap and pcapng fixes Stephen Hemminger
2023-11-08 18:35 ` [PATCH v3 1/5] pdump: fix setting rte_errno on mp error Stephen Hemminger
2023-11-09 7:34 ` Morten Brørup
2023-11-08 18:35 ` [PATCH v3 2/5] dumpcap: allow multiple invocations Stephen Hemminger
2023-11-09 7:50 ` Morten Brørup [this message]
2023-11-09 15:40 ` Stephen Hemminger
2023-11-09 16:00 ` Morten Brørup
2023-11-09 17:16 ` Stephen Hemminger
2023-11-09 18:22 ` Morten Brørup
2023-11-08 18:35 ` [PATCH v3 3/5] pcapng: modify timestamp calculation Stephen Hemminger
2023-11-09 7:57 ` Morten Brørup
2023-11-08 18:35 ` [PATCH v3 4/5] pcapng: avoid using alloca() Stephen Hemminger
2023-11-09 8:21 ` Morten Brørup
2023-11-09 15:44 ` Stephen Hemminger
2023-11-09 16:25 ` Morten Brørup
2023-11-08 18:35 ` [PATCH v3 5/5] test: cleanups to pcapng test Stephen Hemminger
2023-11-09 17:34 ` [PATCH v4 0/5] dumpcap and pcapng fixes Stephen Hemminger
2023-11-09 17:34 ` [PATCH v4 1/5] pdump: fix setting rte_errno on mp error Stephen Hemminger
2023-11-09 17:34 ` [PATCH v4 2/5] dumpcap: allow multiple invocations Stephen Hemminger
2023-11-09 18:30 ` Morten Brørup
2023-11-09 17:34 ` [PATCH v4 3/5] pcapng: modify timestamp calculation Stephen Hemminger
2023-11-09 17:34 ` [PATCH v4 4/5] pcapng: avoid using alloca() Stephen Hemminger
2023-11-09 17:34 ` [PATCH v4 5/5] test: cleanups to pcapng test Stephen Hemminger
2023-11-09 19:45 ` [PATCH v5 0/5] dumpcap and pcapng fixes Stephen Hemminger
2023-11-09 19:45 ` [PATCH v5 1/5] pdump: fix setting rte_errno on mp error Stephen Hemminger
2023-11-09 19:45 ` [PATCH v5 2/5] dumpcap: allow multiple invocations Stephen Hemminger
2023-11-09 20:09 ` Morten Brørup
2023-11-09 19:45 ` [PATCH v5 3/5] pcapng: modify timestamp calculation Stephen Hemminger
2023-11-12 14:22 ` Thomas Monjalon
2023-11-09 19:45 ` [PATCH v5 4/5] pcapng: avoid using alloca() Stephen Hemminger
2023-11-09 19:45 ` [PATCH v5 5/5] test: cleanups to pcapng test Stephen Hemminger
2023-11-13 16:15 ` [PATCH v6 0/5] dumpcap and pcapng fixes Stephen Hemminger
2023-11-13 16:15 ` [PATCH v6 1/5] pdump: fix setting rte_errno on mp error Stephen Hemminger
2023-11-13 16:15 ` [PATCH v6 2/5] dumpcap: allow multiple invocations Stephen Hemminger
2023-11-13 16:15 ` [PATCH v6 3/5] pcapng: modify timestamp calculation Stephen Hemminger
2023-11-13 16:15 ` [PATCH v6 4/5] pcapng: avoid using alloca() Stephen Hemminger
2023-11-13 16:15 ` [PATCH v6 5/5] test: cleanups to pcapng test Stephen Hemminger
2023-11-17 16:35 ` [PATCH v7 0/5] dumpcap and pcapng fixes Stephen Hemminger
2023-11-17 16:35 ` [PATCH v7 1/5] pdump: fix setting rte_errno on mp error Stephen Hemminger
2023-11-17 16:35 ` [PATCH v7 2/5] dumpcap: allow multiple invocations Stephen Hemminger
2023-11-17 16:35 ` [PATCH v7 3/5] pcapng: modify timestamp calculation Stephen Hemminger
2023-11-17 16:35 ` [PATCH v7 4/5] pcapng: avoid using alloca() Stephen Hemminger
2023-11-17 16:35 ` [PATCH v7 5/5] test: cleanups to pcapng test Stephen Hemminger
2023-11-22 22:42 ` [PATCH v7 0/5] dumpcap and pcapng fixes Thomas Monjalon
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