netdev - [PATCH net-next] ethtool: Don't check for NULL info in prepare

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Message-Id: <20240731-prepare_data-null-check-v1-1-627f2320678f@kernel.org>
Date: Wed, 31 Jul 2024 10:15:28 +0100
From: Simon Horman <horms@...nel.org>
To: "David S. Miller" <davem@...emloft.net>, 
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, 
 Paolo Abeni <pabeni@...hat.com>
Cc: Maxime Chevallier <maxime.chevallier@...tlin.com>, 
 netdev@...r.kernel.org
Subject: [PATCH net-next] ethtool: Don't check for NULL info in
 prepare_data callbacks

Since commit f946270d05c2 ("ethtool: netlink: always pass genl_info to
.prepare_data") the info argument of prepare_data callbacks is never
NULL. Remove checks present in callback implementations.

Link: https://lore.kernel.org/netdev/20240703121237.3f8b9125@kernel.org/
Signed-off-by: Simon Horman <horms@...nel.org>
---
 net/ethtool/linkinfo.c  | 2 +-
 net/ethtool/linkmodes.c | 2 +-
 net/ethtool/strset.c    | 3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/ethtool/linkinfo.c b/net/ethtool/linkinfo.c
index 5c317d23787b..30b8ce275159 100644
--- a/net/ethtool/linkinfo.c
+++ b/net/ethtool/linkinfo.c
@@ -35,7 +35,7 @@ static int linkinfo_prepare_data(const struct ethnl_req_info *req_base,
 	if (ret < 0)
 		return ret;
 	ret = __ethtool_get_link_ksettings(dev, &data->ksettings);
-	if (ret < 0 && info)
+	if (ret < 0)
 		GENL_SET_ERR_MSG(info, "failed to retrieve link settings");
 	ethnl_ops_complete(dev);
 
diff --git a/net/ethtool/linkmodes.c b/net/ethtool/linkmodes.c
index b2591db49f7d..259cd9ef1f2a 100644
--- a/net/ethtool/linkmodes.c
+++ b/net/ethtool/linkmodes.c
@@ -40,7 +40,7 @@ static int linkmodes_prepare_data(const struct ethnl_req_info *req_base,
 		return ret;
 
 	ret = __ethtool_get_link_ksettings(dev, &data->ksettings);
-	if (ret < 0 && info) {
+	if (ret < 0) {
 		GENL_SET_ERR_MSG(info, "failed to retrieve link settings");
 		goto out;
 	}
diff --git a/net/ethtool/strset.c b/net/ethtool/strset.c
index c678b484a079..56b99606f00b 100644
--- a/net/ethtool/strset.c
+++ b/net/ethtool/strset.c
@@ -289,8 +289,7 @@ static int strset_prepare_data(const struct ethnl_req_info *req_base,
 		for (i = 0; i < ETH_SS_COUNT; i++) {
 			if ((req_info->req_ids & (1U << i)) &&
 			    data->sets[i].per_dev) {
-				if (info)
-					GENL_SET_ERR_MSG(info, "requested per device strings without dev");
+				GENL_SET_ERR_MSG(info, "requested per device strings without dev");
 				return -EINVAL;
 			}
 		}