With this, incomplete XML without <frames/> for <rx/> in coalesce won't raise error as before. It will leave the coalesce parameter empty, thanks to passing it as a parameter and return an integer to indicate error state - previously it returned pointer (or NULL for both error and incomplete XML). I also added a test case to test this functionality in the qemuxml2xmltest. The code went through some refactoring: * change of a condition * addition of a parameter * change of order, that allowed removal of VIR_FREE * removal of redundant labels and variables Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1535930 Signed-off-by: Kristina Hanicova <khanicov(a)redhat.com&gt; --- diff to v1: - Added qemuxml2xmlout testcase, per Martin's review src/conf/domain_conf.c | 25 +++++++++-------------- tests/qemuxml2argvdata/net-coalesce.xml | 9 ++++++++ tests/qemuxml2xmloutdata/net-coalesce.xml | 8 +++++++- 3 files changed, 26 insertions(+), 16 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index b731744f04..798594f520 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -7516,11 +7516,11 @@ virDomainNetIPInfoParseXML(const char *source, } -static virNetDevCoalescePtr +static int virDomainNetDefCoalesceParseXML(xmlNodePtr node, - xmlXPathContextPtr ctxt) + xmlXPathContextPtr ctxt, + virNetDevCoalescePtr *coalesce) { - virNetDevCoalescePtr ret = NULL; VIR_XPATH_NODE_AUTORESTORE(ctxt) unsigned long long tmp = 0; g_autofree char *str = NULL; @@ -7529,15 +7529,13 @@ virDomainNetDefCoalesceParseXML(xmlNodePtr node, str = virXPathString("string(./rx/frames/@max)", ctxt); if (!str) - return NULL; - - ret = g_new0(virNetDevCoalesce, 1); + return 0; if (virStrToLong_ullp(str, NULL, 10, &tmp) < 0) { virReportError(VIR_ERR_XML_DETAIL, _("cannot parse value '%s' for coalesce parameter"), str); - goto error; + return -1; } if (tmp > UINT32_MAX) { @@ -7545,15 +7543,13 @@ virDomainNetDefCoalesceParseXML(xmlNodePtr node, _("value '%llu' is too big for coalesce " "parameter, maximum is '%lu'"), tmp, (unsigned long) UINT32_MAX); - goto error; + return -1; } - ret->rx_max_coalesced_frames = tmp; - return ret; + *coalesce = g_new0(virNetDevCoalesce, 1); + (*coalesce)->rx_max_coalesced_frames = tmp; - error: - VIR_FREE(ret); - return NULL; + return 0; } static void @@ -11517,8 +11513,7 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, node = virXPathNode("./coalesce", ctxt); if (node) { - def->coalesce = virDomainNetDefCoalesceParseXML(node, ctxt); - if (!def->coalesce) + if (virDomainNetDefCoalesceParseXML(node, ctxt, &def->coalesce) < 0) goto error; } diff --git a/tests/qemuxml2argvdata/net-coalesce.xml b/tests/qemuxml2argvdata/net-coalesce.xml index bdcf786429..6fa3641e7d 100644 --- a/tests/qemuxml2argvdata/net-coalesce.xml +++ b/tests/qemuxml2argvdata/net-coalesce.xml @@ -55,6 +55,15 @@ </rx> </coalesce> </interface> + <interface type='network'> + <source network='default'/> + <mac address='52:54:00:e5:48:60'/> + <model type='virtio'/> + <coalesce> + <rx> + </rx> + </coalesce> + </interface> <serial type='pty'> <target port='0'/> </serial> diff --git a/tests/qemuxml2xmloutdata/net-coalesce.xml b/tests/qemuxml2xmloutdata/net-coalesce.xml index 3a37587dde..452ed94de3 100644 --- a/tests/qemuxml2xmloutdata/net-coalesce.xml +++ b/tests/qemuxml2xmloutdata/net-coalesce.xml @@ -56,6 +56,12 @@ <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </interface> + <interface type='network'> + <mac address='52:54:00:e5:48:60'/> + <source network='default'/> + <model type='virtio'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> + </interface> <serial type='pty'> <target type='isa-serial' port='0'> <model name='isa-serial'/> @@ -67,7 +73,7 @@ <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <memballoon model='virtio'> - <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/> </memballoon> </devices> </domain> -- 2.29.2