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Date: Thu, 24 Mar 2022 23:49:19 +0800
From: Jian Shen <shenjian15@...wei.com>
To: <davem@...emloft.net>, <kuba@...nel.org>, <andrew@...n.ch>,
<ecree.xilinx@...il.com>, <hkallweit1@...il.com>,
<alexandr.lobakin@...el.com>, <saeed@...nel.org>, <leon@...nel.org>
CC: <netdev@...r.kernel.org>, <linuxarm@...neuler.org>,
<lipeng321@...wei.com>
Subject: [RFCv5 PATCH net-next 07/20] net: adjust variables definition for netdev_features_t
For the prototype of netdev_features_t will be changed to be
structure with bitmap, it's unable to be initialized when
define it. So adjust it.
Signed-off-by: Jian Shen <shenjian15@...wei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 +++-
drivers/net/ethernet/sfc/ef10.c | 3 ++-
drivers/net/ethernet/sfc/efx_common.c | 3 ++-
drivers/net/ethernet/sfc/falcon/efx.c | 3 ++-
net/core/dev.c | 14 ++++++++++----
net/ethtool/features.c | 3 ++-
net/ethtool/ioctl.c | 14 ++++++++++----
7 files changed, 31 insertions(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 87cd9187884c..dcdef392ab0c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2394,12 +2394,14 @@ static int hns3_nic_do_ioctl(struct net_device *netdev,
static int hns3_nic_set_features(struct net_device *netdev,
netdev_features_t features)
{
- netdev_features_t changed = netdev->active_features ^ features;
struct hns3_nic_priv *priv = netdev_priv(netdev);
struct hnae3_handle *h = priv->ae_handle;
+ netdev_features_t changed;
bool enable;
int ret;
+ changed = netdev->active_features ^ features;
+
if (changed & (NETIF_F_GRO_HW) && h->ae_algo->ops->set_gro_en) {
enable = !!(features & NETIF_F_GRO_HW);
ret = h->ae_algo->ops->set_gro_en(h, enable);
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 0d75361f1acb..c4cab9d5436d 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -1311,7 +1311,7 @@ static const int ef10_tso_features_array[] = {
static int efx_ef10_init_nic(struct efx_nic *efx)
{
struct efx_ef10_nic_data *nic_data = efx->nic_data;
- netdev_features_t hw_enc_features = 0;
+ netdev_features_t hw_enc_features;
int rc;
if (nic_data->must_check_datapath_caps) {
@@ -1356,6 +1356,7 @@ static int efx_ef10_init_nic(struct efx_nic *efx)
nic_data->must_restore_piobufs = false;
}
+ netdev_features_zero(&hw_enc_features);
/* add encapsulated checksum offload features */
if (efx_has_cap(efx, VXLAN_NVGRE) && !efx_ef10_is_vf(efx))
hw_enc_features |= netdev_ip_csum_features;
diff --git a/drivers/net/ethernet/sfc/efx_common.c b/drivers/net/ethernet/sfc/efx_common.c
index d5f8a2b3189a..306f5cb24273 100644
--- a/drivers/net/ethernet/sfc/efx_common.c
+++ b/drivers/net/ethernet/sfc/efx_common.c
@@ -367,8 +367,8 @@ void efx_start_monitor(struct efx_nic *efx)
*/
static void efx_start_datapath(struct efx_nic *efx)
{
- netdev_features_t old_features = efx->net_dev->active_features;
bool old_rx_scatter = efx->rx_scatter;
+ netdev_features_t old_features;
size_t rx_buf_len;
/* Calculate the rx buffer allocation parameters required to
@@ -413,6 +413,7 @@ static void efx_start_datapath(struct efx_nic *efx)
/* Restore previously fixed features in hw_features and remove
* features which are fixed now
*/
+ old_features = efx->net_dev->active_features;
efx->net_dev->hw_features |= efx->net_dev->active_features;
efx->net_dev->hw_features &= ~efx->fixed_features;
efx->net_dev->active_features |= efx->fixed_features;
diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c
index 2eae365eb7e6..0b04e7e6a002 100644
--- a/drivers/net/ethernet/sfc/falcon/efx.c
+++ b/drivers/net/ethernet/sfc/falcon/efx.c
@@ -592,8 +592,8 @@ static int ef4_probe_channels(struct ef4_nic *efx)
*/
static void ef4_start_datapath(struct ef4_nic *efx)
{
- netdev_features_t old_features = efx->net_dev->active_features;
bool old_rx_scatter = efx->rx_scatter;
+ netdev_features_t old_features;
struct ef4_tx_queue *tx_queue;
struct ef4_rx_queue *rx_queue;
struct ef4_channel *channel;
@@ -640,6 +640,7 @@ static void ef4_start_datapath(struct ef4_nic *efx)
/* Restore previously fixed features in hw_features and remove
* features which are fixed now
*/
+ old_features = efx->net_dev->active_features;
efx->net_dev->hw_features |= efx->net_dev->active_features;
efx->net_dev->hw_features &= ~efx->fixed_features;
efx->net_dev->active_features |= efx->fixed_features;
diff --git a/net/core/dev.c b/net/core/dev.c
index 7d170f307128..5d7f8575438a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3478,9 +3478,11 @@ static netdev_features_t gso_features_check(const struct sk_buff *skb,
netdev_features_t netif_skb_features(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
- netdev_features_t features = dev->active_features;
+ netdev_features_t features;
netdev_features_t tmp;
+ features = dev->active_features;
+
if (skb_is_gso(skb))
features = gso_features_check(skb, dev, features);
@@ -9423,10 +9425,11 @@ static void net_set_todo(struct net_device *dev)
static netdev_features_t netdev_sync_upper_features(struct net_device *lower,
struct net_device *upper, netdev_features_t features)
{
- netdev_features_t upper_disables = NETIF_F_UPPER_DISABLES;
+ netdev_features_t upper_disables;
netdev_features_t feature;
int feature_bit;
+ upper_disables = NETIF_F_UPPER_DISABLES;
for_each_netdev_feature(upper_disables, feature_bit) {
feature = __NETIF_F_BIT(feature_bit);
if (!(upper->wanted_features & feature)
@@ -9443,10 +9446,11 @@ static netdev_features_t netdev_sync_upper_features(struct net_device *lower,
static void netdev_sync_lower_features(struct net_device *upper,
struct net_device *lower, netdev_features_t features)
{
- netdev_features_t upper_disables = NETIF_F_UPPER_DISABLES;
+ netdev_features_t upper_disables;
netdev_features_t feature;
int feature_bit;
+ upper_disables = NETIF_F_UPPER_DISABLES;
for_each_netdev_feature(upper_disables, feature_bit) {
feature = __NETIF_F_BIT(feature_bit);
if (!(features & feature) && (lower->active_features & feature)) {
@@ -9618,7 +9622,9 @@ int __netdev_update_features(struct net_device *dev)
netdev_sync_lower_features(dev, lower, features);
if (!err) {
- netdev_features_t diff = features ^ dev->active_features;
+ netdev_features_t diff;
+
+ diff = features ^ dev->active_features;
if (diff & NETIF_F_RX_UDP_TUNNEL_PORT) {
/* udp_tunnel_{get,drop}_rx_info both need
diff --git a/net/ethtool/features.c b/net/ethtool/features.c
index d327c6032d7b..c0950d181b13 100644
--- a/net/ethtool/features.c
+++ b/net/ethtool/features.c
@@ -144,9 +144,10 @@ static netdev_features_t ethnl_bitmap_to_features(unsigned long *src)
{
const unsigned int nft_bits = sizeof(netdev_features_t) * BITS_PER_BYTE;
const unsigned int words = BITS_TO_LONGS(NETDEV_FEATURE_COUNT);
- netdev_features_t ret = 0;
+ netdev_features_t ret;
unsigned int i;
+ netdev_features_zero(&ret);
for (i = 0; i < words; i++)
ret |= (netdev_features_t)(src[i]) << (i * BITS_PER_LONG);
ret &= ~(netdev_features_t)0 >> (nft_bits - NETDEV_FEATURE_COUNT);
diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c
index ab003dc2cfd8..2a6f5b9cf988 100644
--- a/net/ethtool/ioctl.c
+++ b/net/ethtool/ioctl.c
@@ -124,7 +124,8 @@ static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
{
struct ethtool_sfeatures cmd;
struct ethtool_set_features_block features[ETHTOOL_DEV_FEATURE_WORDS];
- netdev_features_t wanted = 0, valid = 0;
+ netdev_features_t wanted;
+ netdev_features_t valid;
netdev_features_t tmp;
int i, ret = 0;
@@ -138,6 +139,8 @@ static int ethtool_set_features(struct net_device *dev, void __user *useraddr)
if (copy_from_user(features, useraddr, sizeof(features)))
return -EFAULT;
+ netdev_features_zero(&wanted);
+ netdev_features_zero(&valid);
for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; ++i) {
valid |= (netdev_features_t)features[i].valid << (32 * i);
wanted |= (netdev_features_t)features[i].requested << (32 * i);
@@ -266,12 +269,13 @@ static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
static int ethtool_get_one_feature(struct net_device *dev,
char __user *useraddr, u32 ethcmd)
{
- netdev_features_t mask = ethtool_get_feature_mask(ethcmd);
+ netdev_features_t mask;
struct ethtool_value edata = {
.cmd = ethcmd,
- .data = !!(dev->active_features & mask),
};
+ mask = ethtool_get_feature_mask(ethcmd);
+ edata.data = !!(dev->active_features & mask);
if (copy_to_user(useraddr, &edata, sizeof(edata)))
return -EFAULT;
return 0;
@@ -332,13 +336,15 @@ static u32 __ethtool_get_flags(struct net_device *dev)
static int __ethtool_set_flags(struct net_device *dev, u32 data)
{
- netdev_features_t features = 0, changed;
netdev_features_t eth_all_features;
+ netdev_features_t features;
+ netdev_features_t changed;
netdev_features_t tmp;
if (data & ~ETH_ALL_FLAGS)
return -EINVAL;
+ netdev_features_zero(&features);
if (data & ETH_FLAG_LRO)
features |= NETIF_F_LRO;
if (data & ETH_FLAG_RXVLAN)
--
2.33.0
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