From: Stefano Garzarella <sgarzare@redhat.com>
To: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: qemu-devel@nongnu.org, "Jason Wang" <jasowang@redhat.com>,
"Coiby Xu" <Coiby.Xu@gmail.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
qemu-block@nongnu.org, "Gerd Hoffmann" <kraxel@redhat.com>,
slp@redhat.com, "Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Brad Smith" <brad@comstyle.com>,
"Eduardo Habkost" <eduardo@habkost.net>,
"Thomas Huth" <thuth@redhat.com>,
"Eric Blake" <eblake@redhat.com>, "Kevin Wolf" <kwolf@redhat.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Raphael Norwitz" <raphael@enfabrica.net>,
gmaglione@redhat.com, "Laurent Vivier" <lvivier@redhat.com>,
stefanha@redhat.com, "David Hildenbrand" <david@redhat.com>,
"Hanna Reitz" <hreitz@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Igor Mammedov" <imammedo@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: Re: [PATCH v4 01/12] libvhost-user: set msg.msg_control to NULL when it is empty
Date: Wed, 8 May 2024 11:33:55 +0200 [thread overview]
Message-ID: <qz46kdzqc266aluq3ib6q3bcmvnunmqv7tybkq2yvvatxgzx4i@3qo6ro3x6prv> (raw)
In-Reply-To: <Zjs-aTeUfOy2PDQr@redhat.com>
On Wed, May 08, 2024 at 09:57:13AM GMT, Daniel P. Berrangé wrote:
>On Wed, May 08, 2024 at 09:44:45AM +0200, Stefano Garzarella wrote:
>> On some OS (e.g. macOS) sendmsg() returns -1 (errno EINVAL) if
>> the `struct msghdr` has the field `msg_controllen` set to 0, but
>> `msg_control` is not NULL.
>>
>> Reviewed-by: Eric Blake <eblake@redhat.com>
>> Reviewed-by: David Hildenbrand <david@redhat.com>
>> Reviewed-by: Philippe Mathieu-Daud?? <philmd@linaro.org>
>
>Philippe's name has got mangled here
Thank you for bringing this to my attention and helping me solve it
off-list.
It should be fixed with the next posting!
Stefano
>
>> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
>> ---
>> subprojects/libvhost-user/libvhost-user.c | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/subprojects/libvhost-user/libvhost-user.c b/subprojects/libvhost-user/libvhost-user.c
>> index a879149fef..22bea0c775 100644
>> --- a/subprojects/libvhost-user/libvhost-user.c
>> +++ b/subprojects/libvhost-user/libvhost-user.c
>> @@ -632,6 +632,7 @@ vu_message_write(VuDev *dev, int conn_fd, VhostUserMsg *vmsg)
>> memcpy(CMSG_DATA(cmsg), vmsg->fds, fdsize);
>> } else {
>> msg.msg_controllen = 0;
>> + msg.msg_control = NULL;
>> }
>>
>> do {
>> --
>> 2.45.0
>>
>
>With regards,
>Daniel
>--
>|: https://berrange.com -o- https://www.flickr.com/photos/dberrange :|
>|: https://libvirt.org -o- https://fstop138.berrange.com :|
>|: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
>
next prev parent reply other threads:[~2024-05-08 9:34 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-08 7:44 [PATCH v4 00/12] vhost-user: support any POSIX system (tested on macOS, FreeBSD, OpenBSD) Stefano Garzarella
2024-05-08 7:44 ` [PATCH v4 01/12] libvhost-user: set msg.msg_control to NULL when it is empty Stefano Garzarella
2024-05-08 8:57 ` Daniel P. Berrangé
2024-05-08 9:33 ` Stefano Garzarella [this message]
2024-05-08 10:23 ` Philippe Mathieu-Daudé
2024-05-08 7:44 ` [PATCH v4 02/12] libvhost-user: fail vu_message_write() if sendmsg() is failing Stefano Garzarella
2024-05-08 8:59 ` Daniel P. Berrangé
2024-05-08 10:23 ` Philippe Mathieu-Daudé
2024-05-08 7:44 ` [PATCH v4 03/12] libvhost-user: mask F_INFLIGHT_SHMFD if memfd is not supported Stefano Garzarella
2024-05-08 10:39 ` Philippe Mathieu-Daudé
2024-05-10 8:25 ` Stefano Garzarella
2024-05-08 7:44 ` [PATCH v4 04/12] vhost-user-server: do not set memory fd non-blocking Stefano Garzarella
2024-05-08 9:00 ` Daniel P. Berrangé
2024-05-08 7:44 ` [PATCH v4 05/12] contrib/vhost-user-blk: fix bind() using the right size of the address Stefano Garzarella
2024-05-08 10:25 ` Philippe Mathieu-Daudé
2024-05-08 7:44 ` [PATCH v4 06/12] contrib/vhost-user-*: use QEMU bswap helper functions Stefano Garzarella
2024-05-08 10:13 ` Philippe Mathieu-Daudé
2024-05-08 10:25 ` Philippe Mathieu-Daudé
2024-05-08 7:44 ` [PATCH v4 07/12] vhost-user: enable frontends on any POSIX system Stefano Garzarella
2024-05-08 10:26 ` Philippe Mathieu-Daudé
2024-05-08 7:44 ` [PATCH v4 08/12] libvhost-user: enable it " Stefano Garzarella
2024-05-08 10:36 ` Philippe Mathieu-Daudé
2024-05-10 8:56 ` Stefano Garzarella
2024-05-10 9:56 ` Philippe Mathieu-Daudé
2024-05-08 7:44 ` [PATCH v4 09/12] contrib/vhost-user-blk: " Stefano Garzarella
2024-05-08 10:32 ` Philippe Mathieu-Daudé
2024-05-10 9:02 ` Stefano Garzarella
2024-05-08 7:44 ` [PATCH v4 10/12] hostmem: add a new memory backend based on POSIX shm_open() Stefano Garzarella
2024-05-08 11:59 ` Markus Armbruster
2024-05-10 9:37 ` Stefano Garzarella
2024-05-08 7:44 ` [PATCH v4 11/12] tests/qtest/vhost-user-blk-test: use memory-backend-shm Stefano Garzarella
2024-05-10 5:57 ` Thomas Huth
2024-05-10 10:54 ` Philippe Mathieu-Daudé
2024-05-08 7:44 ` [PATCH v4 12/12] tests/qtest/vhost-user-test: add a test case for memory-backend-shm Stefano Garzarella
2024-05-10 5:58 ` Thomas Huth
2024-05-08 10:39 ` [PATCH v4 00/12] vhost-user: support any POSIX system (tested on macOS, FreeBSD, OpenBSD) Philippe Mathieu-Daudé
2024-05-09 19:20 ` Stefan Hajnoczi
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