ivshmem: Drop the hackish test for UNIX domain chardev

The chardev must be capable of transmitting SCM_RIGHTS ancillary
messages.  We check it by comparing CharDriverState member filename to
"unix:".  That's almost as brittle as it is disgusting.

When the actual transmission all happened asynchronously, this check
was all we could do in realize(), and thus better than nothing.  But
now we receive at least one SCM_RIGHTS synchronously in realize(),
it's not worth its keep anymore.  Drop it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1458066895-20632-29-git-send-email-armbru@redhat.com>

diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index da32a74004d58991969b10649656de4411c75e30..c1a75db7c5a298a7c2b938e2329b03ff7da4a34b 100644 (file)
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -964,15 +964,6 @@ static void pci_ivshmem_realize(PCIDevice *dev, Error **errp)
         memory_region_add_subregion(&s->bar, 0, mr);
         pci_register_bar(PCI_DEVICE(s), 2, attr, &s->bar);
     } else if (s->server_chr != NULL) {
-        /* FIXME do not rely on what chr drivers put into filename */
-        if (strncmp(s->server_chr->filename, "unix:", 5)) {
-            error_setg(errp, "chardev is not a unix client socket");
-            return;
-        }
-
-        /* if we get a UNIX socket as the parameter we will talk
-         * to the ivshmem server to receive the memory region */
-
         IVSHMEM_DPRINTF("using shared memory server (socket = %s)\n",
                         s->server_chr->filename);