[v1] Error reporting patches for 2026-01-07

[PULL 10/17] net/tap: Use error_setg_file_open() for a better error message

Markus Armbruster posted 17 patches 1 month ago

Diff against v2
Download mbox

Maintainers: "Gonglei (Arei)" <arei.gonglei@huawei.com>, zhenwei pi <zhenwei.pi@linux.dev>, Alistair Francis <alistair.francis@wdc.com>, Stefan Berger <stefanb@linux.vnet.ibm.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Stefan Weil <sw@weilnetz.de>, Christian Schoenebeck <qemu_oss@crudebyte.com>, Greg Kurz <groug@kaod.org>, "Michael S. Tsirkin" <mst@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Dongjiu Geng <gengdongjiu1@gmail.com>, Peter Maydell <peter.maydell@linaro.org>, Gerd Hoffmann <kraxel@redhat.com>, Bernhard Beschow <shentey@gmail.com>, Nicholas Piggin <npiggin@gmail.com>, Harsh Prateek Bora <harshpb@linux.ibm.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Stefano Stabellini <sstabellini@kernel.org>, Anthony PERARD <anthony@xenproject.org>, Paul Durrant <paul@xen.org>, Elena Ufimtseva <elena.ufimtseva@oracle.com>, Jagannathan Raman <jag.raman@oracle.com>, Palmer Dabbelt <palmer@dabbelt.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Alex Williamson <alex@shazbot.org>, "Cédric Le Goater" <clg@redhat.com>, "Daniel P. Berrangé" <berrange@redhat.com>, Peter Xu <peterx@redhat.com>, Fabiano Rosas <farosas@suse.de>, Li Zhijian <lizhijian@fujitsu.com>, "Dr. David Alan Gilbert" <dave@treblig.org>, Eric Blake <eblake@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>, Jason Wang <jasowang@redhat.com>, Samuel Thibault <samuel.thibault@ens-lyon.org>, Michael Roth <michael.roth@amd.com>, Kostiantyn Kostiuk <kkostiuk@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Zhao Liu <zhao1.liu@intel.com>, Marcelo Tosatti <mtosatti@redhat.com>, Chinmay Rath <rathc@linux.ibm.com>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Yanan Wang <wangyanan55@huawei.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>

There is a newer version of this series

Expand all Fold all

[PULL 10/17] net/tap: Use error_setg_file_open() for a better error message

Posted by Markus Armbruster 1 month ago

The error message changes from

    tap: open vhost char device failed

to

    Could not open '/dev/vhost-net': REASON

I think the exact file name is more useful to know than the file's
purpose.

We could put back the "tap: " prefix with error_prepend().  Not
worth the bother.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20251121121438.1249498-9-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 net/tap.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/tap.c b/net/tap.c
index abe3b2d036..bfba3fd7a7 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -747,8 +747,7 @@ static void net_init_tap_one(const NetdevTapOptions *tap, NetClientState *peer,
         } else {
             vhostfd = open("/dev/vhost-net", O_RDWR);
             if (vhostfd < 0) {
-                error_setg_errno(errp, errno,
-                                 "tap: open vhost char device failed");
+                error_setg_file_open(errp, errno, "/dev/vhost-net");
                 goto failed;
             }
             if (!qemu_set_blocking(vhostfd, false, errp)) {
-- 
2.52.0