Commit 7c87e32d authored by Michal Kubecek's avatar Michal Kubecek Committed by David S. Miller

ethtool: count header size in reply size estimate

As ethnl_request_ops::reply_size handlers do not include common header
size into calculated/estimated reply size, it needs to be added in
ethnl_default_doit() and ethnl_default_notify() before allocating the
message. On the other hand, strset_reply_size() should not add common
header size.

Fixes: 728480f1 ("ethtool: default handlers for GET requests")
Reported-by: default avatarOleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: default avatarMichal Kubecek <mkubecek@suse.cz>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d69100b8
...@@ -342,7 +342,7 @@ static int ethnl_default_doit(struct sk_buff *skb, struct genl_info *info) ...@@ -342,7 +342,7 @@ static int ethnl_default_doit(struct sk_buff *skb, struct genl_info *info)
ret = ops->reply_size(req_info, reply_data); ret = ops->reply_size(req_info, reply_data);
if (ret < 0) if (ret < 0)
goto err_cleanup; goto err_cleanup;
reply_len = ret; reply_len = ret + ethnl_reply_header_size();
ret = -ENOMEM; ret = -ENOMEM;
rskb = ethnl_reply_init(reply_len, req_info->dev, ops->reply_cmd, rskb = ethnl_reply_init(reply_len, req_info->dev, ops->reply_cmd,
ops->hdr_attr, info, &reply_payload); ops->hdr_attr, info, &reply_payload);
...@@ -588,7 +588,7 @@ static void ethnl_default_notify(struct net_device *dev, unsigned int cmd, ...@@ -588,7 +588,7 @@ static void ethnl_default_notify(struct net_device *dev, unsigned int cmd,
ret = ops->reply_size(req_info, reply_data); ret = ops->reply_size(req_info, reply_data);
if (ret < 0) if (ret < 0)
goto err_cleanup; goto err_cleanup;
reply_len = ret; reply_len = ret + ethnl_reply_header_size();
ret = -ENOMEM; ret = -ENOMEM;
skb = genlmsg_new(reply_len, GFP_KERNEL); skb = genlmsg_new(reply_len, GFP_KERNEL);
if (!skb) if (!skb)
......
...@@ -324,7 +324,6 @@ static int strset_reply_size(const struct ethnl_req_info *req_base, ...@@ -324,7 +324,6 @@ static int strset_reply_size(const struct ethnl_req_info *req_base,
int len = 0; int len = 0;
int ret; int ret;
len += ethnl_reply_header_size();
for (i = 0; i < ETH_SS_COUNT; i++) { for (i = 0; i < ETH_SS_COUNT; i++) {
const struct strset_info *set_info = &data->sets[i]; const struct strset_info *set_info = &data->sets[i];
......
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