Re: [PATCH] Fix wrong use of path variable

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On Wed, Dec 30, 2020 at 18:39:35 +0800, liyalei wrote:
> From: liyalei <liyl43@xxxxxxxxxxxxxxx>

Please provide some more description in the commit message, such as
describe the bug that this patch is fixing.

Additionally the libvirt project requires [1] you to certify that you
are in compliance of the 'Developer certificate of origin' [2] by
providing the appropriate tag in the commit message (read the docs to
figure out which).

[1]: https://libvirt.org/hacking.html#developer-certificate-of-origin
[2]: https://developercertificate.org/

> 
> ---
>  src/util/virnetdevopenvswitch.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/util/virnetdevopenvswitch.c b/src/util/virnetdevopenvswitch.c
> index d380b0cf22..7eabaa763d 100644
> --- a/src/util/virnetdevopenvswitch.c
> +++ b/src/util/virnetdevopenvswitch.c
> @@ -494,7 +494,7 @@ virNetDevOpenvswitchGetVhostuserIfname(const char *path,
>      if (server) {
>          virCommandAddArgList(cmd, "--no-headings", "--columns=name", "find",
>                               "Interface", NULL);
> -        virCommandAddArgPair(cmd, "options:vhost-server-path", "path");
> +        virCommandAddArgPair(cmd, "options:vhost-server-path", path);

Looks like this is already fixed:

commit 0dd029b7f2e7d9619ca6a22f43857aafb449c3a7
Author: Michal Prívozník <mprivozn@xxxxxxxxxx>
Date:   Wed Dec 16 18:52:48 2020 +0100

    virNetDevOpenvswitchGetVhostuserIfname: Actually use @path to lookup interface

    In v6.10.0-rc1~221 I wanted to make virNetDevOpenvswitchGetVhostuserIfname()
    lookup interface name even for vhostuser interfaces with mode='server'. For
    these, we are given a socket path which is then created by QEMU and to which
    OpenVSwitch connects to and creates an interface. Because of this, we don't
    know the name of the interface upfront (when starting QEMU) and have to use
    the path to query OpenVSwitch later (using ovs-vsctl). What I intended to use
    was:

      ovs-vsctl --no-headings --columns=name find Interface options:vhost-server-path=$path

    But what my code does is:

      ovs-vsctl --no-headings --columns=name find Interface options:vhost-server-path=path

    and it's all because the argument to the function is named "path"
    which I then enclosed in double quotes while it should have been
    used as a variable.

    Fixes: e4c29e2904197472919d050c67acfd59f0144bbc
    Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1767013
    Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
    Reviewed-by: Laine Stump <laine@xxxxxxxxxx>

diff --git a/src/util/virnetdevopenvswitch.c b/src/util/virnetdevopenvswitch.c
index d380b0cf22..7eabaa763d 100644
--- a/src/util/virnetdevopenvswitch.c
+++ b/src/util/virnetdevopenvswitch.c
@@ -494,7 +494,7 @@ virNetDevOpenvswitchGetVhostuserIfname(const char *path,
     if (server) {
         virCommandAddArgList(cmd, "--no-headings", "--columns=name", "find",
                              "Interface", NULL);
-        virCommandAddArgPair(cmd, "options:vhost-server-path", "path");
+        virCommandAddArgPair(cmd, "options:vhost-server-path", path);
     } else {
         const char *tmpIfname = NULL;


>      } else {
>          const char *tmpIfname = NULL;
>  
> -- 
> 2.27.0
> 




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