linux-kernel - [PATCH] hv/hv_kvp_daemon: Pass NIC name to hv_get_dns

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Message-ID: <20241112150401.217094-1-vkuznets@redhat.com>
Date: Tue, 12 Nov 2024 16:04:01 +0100
From: Vitaly Kuznetsov <vkuznets@...hat.com>
To: linux-hyperv@...r.kernel.org
Cc: mhklinux@...look.com,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>,
	Dexuan Cui <decui@...rosoft.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] hv/hv_kvp_daemon: Pass NIC name to hv_get_dns_info as well

The reference implementation of hv_get_dns_info which is in the tree uses
/etc/resolv.conf to get DNS servers and this does not require to know which
NIC is queried. Distro specific implementations, however, may want to
provide per-NIC, fine grained information. E.g. NetworkManager keeps track
of DNS servers per connection.

Similar to hv_get_dhcp_info, pass NIC name as a parameter to
hv_get_dns_info script.

Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com>
---
 tools/hv/hv_kvp_daemon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index ae57bf69ad4a..296a7a62c54d 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -725,7 +725,7 @@ static void kvp_get_ipconfig_info(char *if_name,
 	 * .
 	 */
 
-	sprintf(cmd, KVP_SCRIPTS_PATH "%s",  "hv_get_dns_info");
+	sprintf(cmd, KVP_SCRIPTS_PATH "%s %s", "hv_get_dns_info", if_name);
 
 	/*
 	 * Execute the command to gather DNS info.
-- 
2.47.0