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Message-ID: <20230814214723.2924989-11-kuba@kernel.org>
Date: Mon, 14 Aug 2023 14:47:23 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
edumazet@...gle.com,
pabeni@...hat.com,
jiri@...nulli.us,
johannes@...solutions.net,
Jakub Kicinski <kuba@...nel.org>,
Vladimir Oltean <vladimir.oltean@....com>,
gal@...dia.com,
tariqt@...dia.com,
lucien.xin@...il.com,
f.fainelli@...il.com,
andrew@...n.ch,
simon.horman@...igine.com,
linux@...pel-privat.de,
mkubecek@...e.cz
Subject: [PATCH net-next v3 10/10] ethtool: netlink: always pass genl_info to .prepare_data
We had a number of bugs in the past because developers forgot
to fully test dumps, which pass NULL as info to .prepare_data.
.prepare_data implementations would try to access info->extack
leading to a null-deref.
Now that dumps and notifications can access struct genl_info
we can pass it in, and remove the info null checks.
Reviewed-by: Vladimir Oltean <vladimir.oltean@....com>
Tested-by: Vladimir Oltean <vladimir.oltean@....com> # pause
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
CC: gal@...dia.com
CC: tariqt@...dia.com
CC: lucien.xin@...il.com
CC: f.fainelli@...il.com
CC: andrew@...n.ch
CC: simon.horman@...igine.com
CC: linux@...pel-privat.de
CC: mkubecek@...e.cz
CC: johannes@...solutions.net
---
net/ethtool/channels.c | 2 +-
net/ethtool/coalesce.c | 6 +++---
net/ethtool/debug.c | 2 +-
net/ethtool/eee.c | 2 +-
net/ethtool/eeprom.c | 9 ++++-----
net/ethtool/features.c | 2 +-
net/ethtool/fec.c | 2 +-
net/ethtool/linkinfo.c | 2 +-
net/ethtool/linkmodes.c | 2 +-
net/ethtool/linkstate.c | 2 +-
net/ethtool/mm.c | 2 +-
net/ethtool/module.c | 5 ++---
net/ethtool/netlink.c | 13 ++++++++-----
net/ethtool/netlink.h | 2 +-
net/ethtool/pause.c | 5 ++---
net/ethtool/phc_vclocks.c | 2 +-
net/ethtool/plca.c | 4 ++--
net/ethtool/privflags.c | 2 +-
net/ethtool/pse-pd.c | 6 +++---
net/ethtool/rings.c | 5 ++---
net/ethtool/rss.c | 3 ++-
net/ethtool/stats.c | 5 ++---
net/ethtool/strset.c | 2 +-
net/ethtool/tsinfo.c | 2 +-
net/ethtool/wol.c | 5 +++--
25 files changed, 47 insertions(+), 47 deletions(-)
diff --git a/net/ethtool/channels.c b/net/ethtool/channels.c
index 61c40e889a4d..7b4bbd674bae 100644
--- a/net/ethtool/channels.c
+++ b/net/ethtool/channels.c
@@ -24,7 +24,7 @@ const struct nla_policy ethnl_channels_get_policy[] = {
static int channels_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct channels_reply_data *data = CHANNELS_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/coalesce.c b/net/ethtool/coalesce.c
index 01a59ce211c8..83112c1a71ae 100644
--- a/net/ethtool/coalesce.c
+++ b/net/ethtool/coalesce.c
@@ -59,10 +59,9 @@ const struct nla_policy ethnl_coalesce_get_policy[] = {
static int coalesce_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct coalesce_reply_data *data = COALESCE_REPDATA(reply_base);
- struct netlink_ext_ack *extack = info ? info->extack : NULL;
struct net_device *dev = reply_base->dev;
int ret;
@@ -73,7 +72,8 @@ static int coalesce_prepare_data(const struct ethnl_req_info *req_base,
if (ret < 0)
return ret;
ret = dev->ethtool_ops->get_coalesce(dev, &data->coalesce,
- &data->kernel_coalesce, extack);
+ &data->kernel_coalesce,
+ info->extack);
ethnl_ops_complete(dev);
return ret;
diff --git a/net/ethtool/debug.c b/net/ethtool/debug.c
index e4369769817e..0b2dea56d461 100644
--- a/net/ethtool/debug.c
+++ b/net/ethtool/debug.c
@@ -23,7 +23,7 @@ const struct nla_policy ethnl_debug_get_policy[] = {
static int debug_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct debug_reply_data *data = DEBUG_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/eee.c b/net/ethtool/eee.c
index 42104bcb0e47..2853394d06a8 100644
--- a/net/ethtool/eee.c
+++ b/net/ethtool/eee.c
@@ -26,7 +26,7 @@ const struct nla_policy ethnl_eee_get_policy[] = {
static int eee_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct eee_reply_data *data = EEE_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/eeprom.c b/net/ethtool/eeprom.c
index 49c0a2a77f02..6209c3a9c8f7 100644
--- a/net/ethtool/eeprom.c
+++ b/net/ethtool/eeprom.c
@@ -51,8 +51,7 @@ static int fallback_set_params(struct eeprom_req_info *request,
}
static int eeprom_fallback(struct eeprom_req_info *request,
- struct eeprom_reply_data *reply,
- struct genl_info *info)
+ struct eeprom_reply_data *reply)
{
struct net_device *dev = reply->base.dev;
struct ethtool_modinfo modinfo = {0};
@@ -103,7 +102,7 @@ static int get_module_eeprom_by_page(struct net_device *dev,
static int eeprom_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct eeprom_reply_data *reply = MODULE_EEPROM_REPDATA(reply_base);
struct eeprom_req_info *request = MODULE_EEPROM_REQINFO(req_base);
@@ -124,7 +123,7 @@ static int eeprom_prepare_data(const struct ethnl_req_info *req_base,
if (ret)
goto err_free;
- ret = get_module_eeprom_by_page(dev, &page_data, info ? info->extack : NULL);
+ ret = get_module_eeprom_by_page(dev, &page_data, info->extack);
if (ret < 0)
goto err_ops;
@@ -140,7 +139,7 @@ static int eeprom_prepare_data(const struct ethnl_req_info *req_base,
kfree(page_data.data);
if (ret == -EOPNOTSUPP)
- return eeprom_fallback(request, reply, info);
+ return eeprom_fallback(request, reply);
return ret;
}
diff --git a/net/ethtool/features.c b/net/ethtool/features.c
index 55d449a2d3fc..a79af8c25a07 100644
--- a/net/ethtool/features.c
+++ b/net/ethtool/features.c
@@ -35,7 +35,7 @@ static void ethnl_features_to_bitmap32(u32 *dest, netdev_features_t src)
static int features_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct features_reply_data *data = FEATURES_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/fec.c b/net/ethtool/fec.c
index 0d9a3d153170..e7d3f2c352a3 100644
--- a/net/ethtool/fec.c
+++ b/net/ethtool/fec.c
@@ -92,7 +92,7 @@ fec_stats_recalc(struct fec_stat_grp *grp, struct ethtool_fec_stat *stats)
static int fec_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
__ETHTOOL_DECLARE_LINK_MODE_MASK(active_fec_modes) = {};
struct fec_reply_data *data = FEC_REPDATA(reply_base);
diff --git a/net/ethtool/linkinfo.c b/net/ethtool/linkinfo.c
index 310dfe63292a..5c317d23787b 100644
--- a/net/ethtool/linkinfo.c
+++ b/net/ethtool/linkinfo.c
@@ -23,7 +23,7 @@ const struct nla_policy ethnl_linkinfo_get_policy[] = {
static int linkinfo_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct linkinfo_reply_data *data = LINKINFO_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/linkmodes.c b/net/ethtool/linkmodes.c
index 20165e07ef90..b2591db49f7d 100644
--- a/net/ethtool/linkmodes.c
+++ b/net/ethtool/linkmodes.c
@@ -27,7 +27,7 @@ const struct nla_policy ethnl_linkmodes_get_policy[] = {
static int linkmodes_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct linkmodes_reply_data *data = LINKMODES_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/linkstate.c b/net/ethtool/linkstate.c
index 2158c17a0b32..b2de2108b356 100644
--- a/net/ethtool/linkstate.c
+++ b/net/ethtool/linkstate.c
@@ -81,7 +81,7 @@ static int linkstate_get_link_ext_state(struct net_device *dev,
static int linkstate_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct linkstate_reply_data *data = LINKSTATE_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/mm.c b/net/ethtool/mm.c
index 4058a557b5a4..2816bb23c3ad 100644
--- a/net/ethtool/mm.c
+++ b/net/ethtool/mm.c
@@ -27,7 +27,7 @@ const struct nla_policy ethnl_mm_get_policy[ETHTOOL_A_MM_HEADER + 1] = {
static int mm_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct mm_reply_data *data = MM_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/module.c b/net/ethtool/module.c
index e0d539b21423..ceb575efc290 100644
--- a/net/ethtool/module.c
+++ b/net/ethtool/module.c
@@ -38,10 +38,9 @@ static int module_get_power_mode(struct net_device *dev,
static int module_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct module_reply_data *data = MODULE_REPDATA(reply_base);
- struct netlink_ext_ack *extack = info ? info->extack : NULL;
struct net_device *dev = reply_base->dev;
int ret;
@@ -49,7 +48,7 @@ static int module_prepare_data(const struct ethnl_req_info *req_base,
if (ret < 0)
return ret;
- ret = module_get_power_mode(dev, data, extack);
+ ret = module_get_power_mode(dev, data, info->extack);
if (ret < 0)
goto out_complete;
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index f7b3171a0aad..3bbd5afb7b31 100644
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -444,12 +444,12 @@ static int ethnl_default_doit(struct sk_buff *skb, struct genl_info *info)
static int ethnl_default_dump_one(struct sk_buff *skb, struct net_device *dev,
const struct ethnl_dump_ctx *ctx,
- struct netlink_callback *cb)
+ const struct genl_info *info)
{
void *ehdr;
int ret;
- ehdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
+ ehdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
ðtool_genl_family, NLM_F_MULTI,
ctx->ops->reply_cmd);
if (!ehdr)
@@ -457,7 +457,7 @@ static int ethnl_default_dump_one(struct sk_buff *skb, struct net_device *dev,
ethnl_init_reply_data(ctx->reply_data, ctx->ops, dev);
rtnl_lock();
- ret = ctx->ops->prepare_data(ctx->req_info, ctx->reply_data, NULL);
+ ret = ctx->ops->prepare_data(ctx->req_info, ctx->reply_data, info);
rtnl_unlock();
if (ret < 0)
goto out;
@@ -495,7 +495,7 @@ static int ethnl_default_dumpit(struct sk_buff *skb,
dev_hold(dev);
rtnl_unlock();
- ret = ethnl_default_dump_one(skb, dev, ctx, cb);
+ ret = ethnl_default_dump_one(skb, dev, ctx, genl_info_dump(cb));
rtnl_lock();
dev_put(dev);
@@ -647,11 +647,14 @@ static void ethnl_default_notify(struct net_device *dev, unsigned int cmd,
struct ethnl_reply_data *reply_data;
const struct ethnl_request_ops *ops;
struct ethnl_req_info *req_info;
+ struct genl_info info;
struct sk_buff *skb;
void *reply_payload;
int reply_len;
int ret;
+ genl_info_init_ntf(&info, ðtool_genl_family, cmd);
+
if (WARN_ONCE(cmd > ETHTOOL_MSG_KERNEL_MAX ||
!ethnl_default_notify_ops[cmd],
"unexpected notification type %u\n", cmd))
@@ -670,7 +673,7 @@ static void ethnl_default_notify(struct net_device *dev, unsigned int cmd,
req_info->flags |= ETHTOOL_FLAG_COMPACT_BITSETS;
ethnl_init_reply_data(reply_data, ops, dev);
- ret = ops->prepare_data(req_info, reply_data, NULL);
+ ret = ops->prepare_data(req_info, reply_data, &info);
if (ret < 0)
goto err_cleanup;
ret = ops->reply_size(req_info, reply_data);
diff --git a/net/ethtool/netlink.h b/net/ethtool/netlink.h
index 79424b34b553..9a333a8d04c1 100644
--- a/net/ethtool/netlink.h
+++ b/net/ethtool/netlink.h
@@ -355,7 +355,7 @@ struct ethnl_request_ops {
struct netlink_ext_ack *extack);
int (*prepare_data)(const struct ethnl_req_info *req_info,
struct ethnl_reply_data *reply_data,
- struct genl_info *info);
+ const struct genl_info *info);
int (*reply_size)(const struct ethnl_req_info *req_info,
const struct ethnl_reply_data *reply_data);
int (*fill_reply)(struct sk_buff *skb,
diff --git a/net/ethtool/pause.c b/net/ethtool/pause.c
index 6657d0b888d8..f7c847aeb1a2 100644
--- a/net/ethtool/pause.c
+++ b/net/ethtool/pause.c
@@ -51,10 +51,9 @@ static int pause_parse_request(struct ethnl_req_info *req_base,
static int pause_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
const struct pause_req_info *req_info = PAUSE_REQINFO(req_base);
- struct netlink_ext_ack *extack = info ? info->extack : NULL;
struct pause_reply_data *data = PAUSE_REPDATA(reply_base);
enum ethtool_mac_stats_src src = req_info->src;
struct net_device *dev = reply_base->dev;
@@ -74,7 +73,7 @@ static int pause_prepare_data(const struct ethnl_req_info *req_base,
if ((src == ETHTOOL_MAC_STATS_SRC_EMAC ||
src == ETHTOOL_MAC_STATS_SRC_PMAC) &&
!__ethtool_dev_mm_supported(dev)) {
- NL_SET_ERR_MSG_MOD(extack,
+ NL_SET_ERR_MSG_MOD(info->extack,
"Device does not support MAC merge layer");
ethnl_ops_complete(dev);
return -EOPNOTSUPP;
diff --git a/net/ethtool/phc_vclocks.c b/net/ethtool/phc_vclocks.c
index 637b2f5297d5..cadaabed60bd 100644
--- a/net/ethtool/phc_vclocks.c
+++ b/net/ethtool/phc_vclocks.c
@@ -24,7 +24,7 @@ const struct nla_policy ethnl_phc_vclocks_get_policy[] = {
static int phc_vclocks_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct phc_vclocks_reply_data *data = PHC_VCLOCKS_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/plca.c b/net/ethtool/plca.c
index 5a8cab4df0c9..b238a1afe9ae 100644
--- a/net/ethtool/plca.c
+++ b/net/ethtool/plca.c
@@ -40,7 +40,7 @@ const struct nla_policy ethnl_plca_get_cfg_policy[] = {
static int plca_get_cfg_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct plca_reply_data *data = PLCA_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
@@ -183,7 +183,7 @@ const struct nla_policy ethnl_plca_get_status_policy[] = {
static int plca_get_status_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct plca_reply_data *data = PLCA_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/privflags.c b/net/ethtool/privflags.c
index 23264a1ebf12..297be6a13ab9 100644
--- a/net/ethtool/privflags.c
+++ b/net/ethtool/privflags.c
@@ -57,7 +57,7 @@ static int ethnl_get_priv_flags_info(struct net_device *dev,
static int privflags_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct privflags_reply_data *data = PRIVFLAGS_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/pse-pd.c b/net/ethtool/pse-pd.c
index 530b8b99e6df..cc478af77111 100644
--- a/net/ethtool/pse-pd.c
+++ b/net/ethtool/pse-pd.c
@@ -53,8 +53,8 @@ static int pse_get_pse_attributes(struct net_device *dev,
}
static int pse_prepare_data(const struct ethnl_req_info *req_base,
- struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ struct ethnl_reply_data *reply_base,
+ const struct genl_info *info)
{
struct pse_reply_data *data = PSE_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
@@ -64,7 +64,7 @@ static int pse_prepare_data(const struct ethnl_req_info *req_base,
if (ret < 0)
return ret;
- ret = pse_get_pse_attributes(dev, info ? info->extack : NULL, data);
+ ret = pse_get_pse_attributes(dev, info->extack, data);
ethnl_ops_complete(dev);
diff --git a/net/ethtool/rings.c b/net/ethtool/rings.c
index 1c4972526142..fb09f774ea01 100644
--- a/net/ethtool/rings.c
+++ b/net/ethtool/rings.c
@@ -24,10 +24,9 @@ const struct nla_policy ethnl_rings_get_policy[] = {
static int rings_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct rings_reply_data *data = RINGS_REPDATA(reply_base);
- struct netlink_ext_ack *extack = info ? info->extack : NULL;
struct net_device *dev = reply_base->dev;
int ret;
@@ -39,7 +38,7 @@ static int rings_prepare_data(const struct ethnl_req_info *req_base,
if (ret < 0)
return ret;
dev->ethtool_ops->get_ringparam(dev, &data->ringparam,
- &data->kernel_ringparam, extack);
+ &data->kernel_ringparam, info->extack);
ethnl_ops_complete(dev);
return 0;
diff --git a/net/ethtool/rss.c b/net/ethtool/rss.c
index be260ab34e58..5764202e6cb6 100644
--- a/net/ethtool/rss.c
+++ b/net/ethtool/rss.c
@@ -42,7 +42,8 @@ rss_parse_request(struct ethnl_req_info *req_info, struct nlattr **tb,
static int
rss_prepare_data(const struct ethnl_req_info *req_base,
- struct ethnl_reply_data *reply_base, struct genl_info *info)
+ struct ethnl_reply_data *reply_base,
+ const struct genl_info *info)
{
struct rss_reply_data *data = RSS_REPDATA(reply_base);
struct rss_req_info *request = RSS_REQINFO(req_base);
diff --git a/net/ethtool/stats.c b/net/ethtool/stats.c
index 010ed19ccc99..912f0c4fff2f 100644
--- a/net/ethtool/stats.c
+++ b/net/ethtool/stats.c
@@ -114,10 +114,9 @@ static int stats_parse_request(struct ethnl_req_info *req_base,
static int stats_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
const struct stats_req_info *req_info = STATS_REQINFO(req_base);
- struct netlink_ext_ack *extack = info ? info->extack : NULL;
struct stats_reply_data *data = STATS_REPDATA(reply_base);
enum ethtool_mac_stats_src src = req_info->src;
struct net_device *dev = reply_base->dev;
@@ -130,7 +129,7 @@ static int stats_prepare_data(const struct ethnl_req_info *req_base,
if ((src == ETHTOOL_MAC_STATS_SRC_EMAC ||
src == ETHTOOL_MAC_STATS_SRC_PMAC) &&
!__ethtool_dev_mm_supported(dev)) {
- NL_SET_ERR_MSG_MOD(extack,
+ NL_SET_ERR_MSG_MOD(info->extack,
"Device does not support MAC merge layer");
ethnl_ops_complete(dev);
return -EOPNOTSUPP;
diff --git a/net/ethtool/strset.c b/net/ethtool/strset.c
index 3f7de54d85fb..c678b484a079 100644
--- a/net/ethtool/strset.c
+++ b/net/ethtool/strset.c
@@ -274,7 +274,7 @@ static int strset_prepare_set(struct strset_info *info, struct net_device *dev,
static int strset_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
const struct strset_req_info *req_info = STRSET_REQINFO(req_base);
struct strset_reply_data *data = STRSET_REPDATA(reply_base);
diff --git a/net/ethtool/tsinfo.c b/net/ethtool/tsinfo.c
index 63b5814bd460..9daed0aab162 100644
--- a/net/ethtool/tsinfo.c
+++ b/net/ethtool/tsinfo.c
@@ -25,7 +25,7 @@ const struct nla_policy ethnl_tsinfo_get_policy[] = {
static int tsinfo_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct tsinfo_reply_data *data = TSINFO_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
diff --git a/net/ethtool/wol.c b/net/ethtool/wol.c
index a4a43d9e6e9d..0ed56c9ac1bc 100644
--- a/net/ethtool/wol.c
+++ b/net/ethtool/wol.c
@@ -24,7 +24,7 @@ const struct nla_policy ethnl_wol_get_policy[] = {
static int wol_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
- struct genl_info *info)
+ const struct genl_info *info)
{
struct wol_reply_data *data = WOL_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
@@ -39,7 +39,8 @@ static int wol_prepare_data(const struct ethnl_req_info *req_base,
dev->ethtool_ops->get_wol(dev, &data->wol);
ethnl_ops_complete(dev);
/* do not include password in notifications */
- data->show_sopass = info && (data->wol.supported & WAKE_MAGICSECURE);
+ data->show_sopass = !genl_info_is_ntf(info) &&
+ (data->wol.supported & WAKE_MAGICSECURE);
return 0;
}
--
2.41.0
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