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Message-Id: <20241115204308.3821419-1-kees@kernel.org>
Date: Fri, 15 Nov 2024 12:43:03 -0800
From: Kees Cook <kees@...nel.org>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Kees Cook <kees@...nel.org>,
"Gustavo A. R. Silva" <gustavoars@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Andrew Lunn <andrew@...n.ch>,
"Kory Maincent (Dent Project)" <kory.maincent@...tlin.com>,
Michael Chan <michael.chan@...adcom.com>,
Andrew Lunn <andrew+netdev@...n.ch>,
Eric Dumazet <edumazet@...gle.com>,
Paolo Abeni <pabeni@...hat.com>,
Potnuri Bharat Teja <bharat@...lsio.com>,
Christian Benvenuti <benve@...co.com>,
Satish Kharat <satishkh@...co.com>,
Manish Chopra <manishc@...vell.com>,
Simon Horman <horms@...nel.org>,
Edward Cree <ecree.xilinx@...il.com>,
Przemek Kitszel <przemyslaw.kitszel@...el.com>,
Heiner Kallweit <hkallweit1@...il.com>,
Ahmed Zaki <ahmed.zaki@...el.com>,
Rahul Rameshbabu <rrameshbabu@...dia.com>,
Ido Schimmel <idosch@...dia.com>,
Maxime Chevallier <maxime.chevallier@...tlin.com>,
Takeru Hayasaka <hayatake396@...il.com>,
Jonathan Corbet <corbet@....net>,
linux-kernel@...r.kernel.org,
netdev@...r.kernel.org,
linux-hardening@...r.kernel.org
Subject: [PATCH 1/3] Revert "net: ethtool: Avoid thousands of -Wflex-array-member-not-at-end warnings"
This reverts commit 3bd9b9abdf1563a22041b7255baea6d449902f1a. We cannot
use the new tagged struct group because it throws C++ errors even under
"extern C".
Signed-off-by: Kees Cook <kees@...nel.org>
---
Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org>
---
.../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 6 +++---
.../net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c | 4 ++--
.../ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 2 +-
drivers/net/ethernet/cisco/enic/enic_ethtool.c | 2 +-
.../net/ethernet/qlogic/qede/qede_ethtool.c | 4 ++--
include/linux/ethtool.h | 2 +-
net/ethtool/ioctl.c | 2 +-
net/ethtool/linkinfo.c | 8 ++++----
net/ethtool/linkmodes.c | 18 +++++++-----------
9 files changed, 22 insertions(+), 26 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index cfd2c65b1c90..061a40b1974b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -2780,7 +2780,7 @@ u32 bnxt_fw_to_ethtool_speed(u16 fw_link_speed)
static void bnxt_get_default_speeds(struct ethtool_link_ksettings *lk_ksettings,
struct bnxt_link_info *link_info)
{
- struct ethtool_link_settings_hdr *base = &lk_ksettings->base;
+ struct ethtool_link_settings *base = &lk_ksettings->base;
if (link_info->link_state == BNXT_LINK_STATE_UP) {
base->speed = bnxt_fw_to_ethtool_speed(link_info->link_speed);
@@ -2799,7 +2799,7 @@ static void bnxt_get_default_speeds(struct ethtool_link_ksettings *lk_ksettings,
static int bnxt_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *lk_ksettings)
{
- struct ethtool_link_settings_hdr *base = &lk_ksettings->base;
+ struct ethtool_link_settings *base = &lk_ksettings->base;
enum ethtool_link_mode_bit_indices link_mode;
struct bnxt *bp = netdev_priv(dev);
struct bnxt_link_info *link_info;
@@ -3022,9 +3022,9 @@ u16 bnxt_get_fw_auto_link_speeds(const unsigned long *mode)
static int bnxt_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *lk_ksettings)
{
- const struct ethtool_link_settings_hdr *base = &lk_ksettings->base;
struct bnxt *bp = netdev_priv(dev);
struct bnxt_link_info *link_info = &bp->link_info;
+ const struct ethtool_link_settings *base = &lk_ksettings->base;
bool set_pause = false;
u32 speed, lanes = 0;
int rc = 0;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
index 45d28a65347e..7f3f5afa864f 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
@@ -662,8 +662,8 @@ static unsigned int lmm_to_fw_caps(const unsigned long *link_mode_mask)
static int get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
- struct ethtool_link_settings_hdr *base = &link_ksettings->base;
struct port_info *pi = netdev_priv(dev);
+ struct ethtool_link_settings *base = &link_ksettings->base;
/* For the nonce, the Firmware doesn't send up Port State changes
* when the Virtual Interface attached to the Port is down. So
@@ -717,9 +717,9 @@ static int get_link_ksettings(struct net_device *dev,
static int set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *link_ksettings)
{
- const struct ethtool_link_settings_hdr *base = &link_ksettings->base;
struct port_info *pi = netdev_priv(dev);
struct link_config *lc = &pi->link_cfg;
+ const struct ethtool_link_settings *base = &link_ksettings->base;
struct link_config old_lc;
unsigned int fw_caps;
int ret = 0;
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index 61d08547e3f9..2fbe0f059a0b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -1436,8 +1436,8 @@ static void fw_caps_to_lmm(enum fw_port_type port_type,
static int cxgb4vf_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings)
{
- struct ethtool_link_settings_hdr *base = &link_ksettings->base;
struct port_info *pi = netdev_priv(dev);
+ struct ethtool_link_settings *base = &link_ksettings->base;
/* For the nonce, the Firmware doesn't send up Port State changes
* when the Virtual Interface attached to the Port is down. So
diff --git a/drivers/net/ethernet/cisco/enic/enic_ethtool.c b/drivers/net/ethernet/cisco/enic/enic_ethtool.c
index 4fe85780a950..f7986f2b6a17 100644
--- a/drivers/net/ethernet/cisco/enic/enic_ethtool.c
+++ b/drivers/net/ethernet/cisco/enic/enic_ethtool.c
@@ -129,8 +129,8 @@ static void enic_intr_coal_set_rx(struct enic *enic, u32 timer)
static int enic_get_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *ecmd)
{
- struct ethtool_link_settings_hdr *base = &ecmd->base;
struct enic *enic = netdev_priv(netdev);
+ struct ethtool_link_settings *base = &ecmd->base;
ethtool_link_ksettings_add_link_mode(ecmd, supported,
10000baseT_Full);
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
index c553da16d4b1..e50e1df0a433 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c
@@ -504,7 +504,7 @@ static int qede_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *cmd)
{
typeof(cmd->link_modes) *link_modes = &cmd->link_modes;
- struct ethtool_link_settings_hdr *base = &cmd->base;
+ struct ethtool_link_settings *base = &cmd->base;
struct qede_dev *edev = netdev_priv(dev);
struct qed_link_output current_link;
@@ -537,7 +537,7 @@ static int qede_get_link_ksettings(struct net_device *dev,
static int qede_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd)
{
- const struct ethtool_link_settings_hdr *base = &cmd->base;
+ const struct ethtool_link_settings *base = &cmd->base;
const struct ethtool_forced_speed_map *map;
struct qede_dev *edev = netdev_priv(dev);
struct qed_link_output current_link;
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 1199e308c8dd..12f6dc567598 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -211,7 +211,7 @@ void ethtool_rxfh_context_lost(struct net_device *dev, u32 context_id);
* fields, but they are allowed to overwrite them (will be ignored).
*/
struct ethtool_link_ksettings {
- struct ethtool_link_settings_hdr base;
+ struct ethtool_link_settings base;
struct {
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index 7da94e26ced6..5cc131cdb1bc 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -425,7 +425,7 @@ convert_link_ksettings_to_legacy_settings(
/* layout of the struct passed from/to userland */
struct ethtool_link_usettings {
- struct ethtool_link_settings_hdr base;
+ struct ethtool_link_settings base;
struct {
__u32 supported[__ETHTOOL_LINK_MODE_MASK_NU32];
__u32 advertising[__ETHTOOL_LINK_MODE_MASK_NU32];
diff --git a/net/ethtool/linkinfo.c b/net/ethtool/linkinfo.c
index 2d5bc57160be..30b8ce275159 100644
--- a/net/ethtool/linkinfo.c
+++ b/net/ethtool/linkinfo.c
@@ -8,9 +8,9 @@ struct linkinfo_req_info {
};
struct linkinfo_reply_data {
- struct ethnl_reply_data base;
- struct ethtool_link_ksettings ksettings;
- struct ethtool_link_settings_hdr *lsettings;
+ struct ethnl_reply_data base;
+ struct ethtool_link_ksettings ksettings;
+ struct ethtool_link_settings *lsettings;
};
#define LINKINFO_REPDATA(__reply_base) \
@@ -98,7 +98,7 @@ static int
ethnl_set_linkinfo(struct ethnl_req_info *req_info, struct genl_info *info)
{
struct ethtool_link_ksettings ksettings = {};
- struct ethtool_link_settings_hdr *lsettings;
+ struct ethtool_link_settings *lsettings;
struct net_device *dev = req_info->dev;
struct nlattr **tb = info->attrs;
bool mod = false;
diff --git a/net/ethtool/linkmodes.c b/net/ethtool/linkmodes.c
index 17e49cf89f03..259cd9ef1f2a 100644
--- a/net/ethtool/linkmodes.c
+++ b/net/ethtool/linkmodes.c
@@ -11,10 +11,10 @@ struct linkmodes_req_info {
};
struct linkmodes_reply_data {
- struct ethnl_reply_data base;
- struct ethtool_link_ksettings ksettings;
- struct ethtool_link_settings_hdr *lsettings;
- bool peer_empty;
+ struct ethnl_reply_data base;
+ struct ethtool_link_ksettings ksettings;
+ struct ethtool_link_settings *lsettings;
+ bool peer_empty;
};
#define LINKMODES_REPDATA(__reply_base) \
@@ -62,12 +62,10 @@ static int linkmodes_reply_size(const struct ethnl_req_info *req_base,
{
const struct linkmodes_reply_data *data = LINKMODES_REPDATA(reply_base);
const struct ethtool_link_ksettings *ksettings = &data->ksettings;
+ const struct ethtool_link_settings *lsettings = &ksettings->base;
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
- const struct ethtool_link_settings_hdr *lsettings;
int len, ret;
- lsettings = &ksettings->base;
-
len = nla_total_size(sizeof(u8)) /* LINKMODES_AUTONEG */
+ nla_total_size(sizeof(u32)) /* LINKMODES_SPEED */
+ nla_total_size(sizeof(u32)) /* LINKMODES_LANES */
@@ -105,12 +103,10 @@ static int linkmodes_fill_reply(struct sk_buff *skb,
{
const struct linkmodes_reply_data *data = LINKMODES_REPDATA(reply_base);
const struct ethtool_link_ksettings *ksettings = &data->ksettings;
+ const struct ethtool_link_settings *lsettings = &ksettings->base;
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
- const struct ethtool_link_settings_hdr *lsettings;
int ret;
- lsettings = &ksettings->base;
-
if (nla_put_u8(skb, ETHTOOL_A_LINKMODES_AUTONEG, lsettings->autoneg))
return -EMSGSIZE;
@@ -241,7 +237,7 @@ static int ethnl_update_linkmodes(struct genl_info *info, struct nlattr **tb,
struct ethtool_link_ksettings *ksettings,
bool *mod, const struct net_device *dev)
{
- struct ethtool_link_settings_hdr *lsettings = &ksettings->base;
+ struct ethtool_link_settings *lsettings = &ksettings->base;
bool req_speed, req_lanes, req_duplex;
const struct nlattr *master_slave_cfg, *lanes_cfg;
int ret;
--
2.34.1
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