[dpdk-dev] Build is broken in dpdk-next-net
Maxime Coquelin
maxime.coquelin at redhat.com
Fri Mar 30 15:27:55 CEST 2018
Hi Andrew,
On 03/30/2018 03:18 PM, Andrew Rybchenko wrote:
> Hi all,
>
> Build is broken in dpdk-next-net for me on Ubuntu 16.04.4:
>
> lib/librte_vhost/fd_man.c: In function ‘fdset_pipe_read_cb’:
> lib/librte_vhost/fd_man.c:284:2: error: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Werror=unused-result]
> read(readfd, charbuf, sizeof(charbuf));
> ^
> lib/librte_vhost/fd_man.c: In function ‘fdset_pipe_notify’:
> lib/librte_vhost/fd_man.c:324:2: error: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Werror=unused-result]
> write(fdset->u.writefd, "1", 1);
> ^
>
> $ gcc --version
> gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
Thanks for reporting, I don't catch it with my Fedora build system:
$ gcc --version
gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
>
> As I understand it is broken in ad94ade905454401b705be9e06b19e54a1c78148
> vhost: add pipe event for optimizing negotiating
I confirm it is this patch.
Xiangxia, can you provide a fix please?
Ferruh, how do you want to proceed?
Would you revert it?
Thanks,
Maxime
> Andrew.
>
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