From: Xueming Li <xuemingl@nvidia.com>
Date: Wed, 20 Oct 2021 15:47:38 +0000 (+0800)
Subject: devargs: make bus optional
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5adef306daccf741a0467015c5565f861b1da25b;p=dpdk.git

devargs: make bus optional

Global devargs syntax is used as device iteration filter like
"class=vdpa", a devargs without bus args is valid from parsing
perspective.

This patch makes bus args optional.

Fixes: d2a66ad79480 ("bus: add device arguments name parsing")

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: Gaetan Rivet <grive@u256.net>
---

diff --git a/drivers/bus/pci/pci_params.c b/drivers/bus/pci/pci_params.c
index 21c2e1d036..60b424b829 100644
--- a/drivers/bus/pci/pci_params.c
+++ b/drivers/bus/pci/pci_params.c
@@ -87,11 +87,10 @@ rte_pci_devargs_parse(struct rte_devargs *da)
 	struct rte_kvargs *kvargs;
 	const char *addr_str;
 	struct rte_pci_addr addr;
-	int ret;
+	int ret = 0;
 
-	if (da == NULL)
+	if (da == NULL || da->bus_str == NULL)
 		return 0;
-	RTE_ASSERT(da->bus_str != NULL);
 
 	kvargs = rte_kvargs_parse(da->bus_str, NULL);
 	if (kvargs == NULL) {
@@ -103,9 +102,8 @@ rte_pci_devargs_parse(struct rte_devargs *da)
 
 	addr_str = rte_kvargs_get(kvargs, pci_params_keys[RTE_PCI_PARAM_ADDR]);
 	if (addr_str == NULL) {
-		RTE_LOG(ERR, EAL, "No PCI address specified using '%s=<id>' in: %s\n",
+		RTE_LOG(DEBUG, EAL, "No PCI address specified using '%s=<id>' in: %s\n",
 			pci_params_keys[RTE_PCI_PARAM_ADDR], da->bus_str);
-		ret = -ENODEV;
 		goto out;
 	}
 
diff --git a/lib/eal/common/eal_common_devargs.c b/lib/eal/common/eal_common_devargs.c
index d673598032..8c7650cf6c 100644
--- a/lib/eal/common/eal_common_devargs.c
+++ b/lib/eal/common/eal_common_devargs.c
@@ -39,7 +39,7 @@ devargs_bus_parse_default(struct rte_devargs *devargs,
 	/* Parse devargs name from bus key-value list. */
 	name = rte_kvargs_get(bus_args, "name");
 	if (name == NULL) {
-		RTE_LOG(INFO, EAL, "devargs name not found: %s\n",
+		RTE_LOG(DEBUG, EAL, "devargs name not found: %s\n",
 			devargs->data);
 		return 0;
 	}