This is a note to let you know that I've just added the patch titled
qed: Improve the stack space of filter_config()
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
qed-improve-the-stack-space-of-filter_config.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit aecc7826a4290fc3658479d28cda4d28271f8870
Author: Shai Malin <smalin@xxxxxxxxxxx>
Date: Mon Sep 13 10:50:24 2021 +0300
qed: Improve the stack space of filter_config()
[ Upstream commit f55e36d5ab76c3097ff36ecea60b91c6b0d80fc8 ]
As it was reported and discussed in: https://lore.kernel.org/lkml/CAHk-=whF9F89vsfH8E9TGc0tZA-yhzi2Di8wOtquNB5vRkFX5w@xxxxxxxxxxxxxx/
This patch improves the stack space of qede_config_rx_mode() by
splitting filter_config() to 3 functions and removing the
union qed_filter_type_params.
Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
Signed-off-by: Ariel Elior <aelior@xxxxxxxxxxx>
Signed-off-by: Shai Malin <smalin@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Stable-dep-of: b5d14b0c6716 ("wifi: virt_wifi: avoid reporting connection success with wrong SSID")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c
index 8a73482cb7a88..b21acc07f7551 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_l2.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c
@@ -2781,25 +2781,6 @@ static int qed_configure_filter_mcast(struct qed_dev *cdev,
return qed_filter_mcast_cmd(cdev, &mcast, QED_SPQ_MODE_CB, NULL);
}
-static int qed_configure_filter(struct qed_dev *cdev,
- struct qed_filter_params *params)
-{
- enum qed_filter_rx_mode_type accept_flags;
-
- switch (params->type) {
- case QED_FILTER_TYPE_UCAST:
- return qed_configure_filter_ucast(cdev, ¶ms->filter.ucast);
- case QED_FILTER_TYPE_MCAST:
- return qed_configure_filter_mcast(cdev, ¶ms->filter.mcast);
- case QED_FILTER_TYPE_RX_MODE:
- accept_flags = params->filter.accept_flags;
- return qed_configure_filter_rx_mode(cdev, accept_flags);
- default:
- DP_NOTICE(cdev, "Unknown filter type %d\n", (int)params->type);
- return -EINVAL;
- }
-}
-
static int qed_configure_arfs_searcher(struct qed_dev *cdev,
enum qed_filter_config_mode mode)
{
@@ -2932,7 +2913,9 @@ static const struct qed_eth_ops qed_eth_ops_pass = {
.q_rx_stop = &qed_stop_rxq,
.q_tx_start = &qed_start_txq,
.q_tx_stop = &qed_stop_txq,
- .filter_config = &qed_configure_filter,
+ .filter_config_rx_mode = &qed_configure_filter_rx_mode,
+ .filter_config_ucast = &qed_configure_filter_ucast,
+ .filter_config_mcast = &qed_configure_filter_mcast,
.fastpath_stop = &qed_fastpath_stop,
.eth_cqe_completion = &qed_fp_cqe_completion,
.get_vport_stats = &qed_get_vport_stats,
diff --git a/drivers/net/ethernet/qlogic/qede/qede_filter.c b/drivers/net/ethernet/qlogic/qede/qede_filter.c
index 3142d92a98f02..616608e496f7d 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_filter.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_filter.c
@@ -644,30 +644,28 @@ static int qede_set_ucast_rx_mac(struct qede_dev *edev,
enum qed_filter_xcast_params_type opcode,
unsigned char mac[ETH_ALEN])
{
- struct qed_filter_params filter_cmd;
+ struct qed_filter_ucast_params ucast;
- memset(&filter_cmd, 0, sizeof(filter_cmd));
- filter_cmd.type = QED_FILTER_TYPE_UCAST;
- filter_cmd.filter.ucast.type = opcode;
- filter_cmd.filter.ucast.mac_valid = 1;
- ether_addr_copy(filter_cmd.filter.ucast.mac, mac);
+ memset(&ucast, 0, sizeof(ucast));
+ ucast.type = opcode;
+ ucast.mac_valid = 1;
+ ether_addr_copy(ucast.mac, mac);
- return edev->ops->filter_config(edev->cdev, &filter_cmd);
+ return edev->ops->filter_config_ucast(edev->cdev, &ucast);
}
static int qede_set_ucast_rx_vlan(struct qede_dev *edev,
enum qed_filter_xcast_params_type opcode,
u16 vid)
{
- struct qed_filter_params filter_cmd;
+ struct qed_filter_ucast_params ucast;
- memset(&filter_cmd, 0, sizeof(filter_cmd));
- filter_cmd.type = QED_FILTER_TYPE_UCAST;
- filter_cmd.filter.ucast.type = opcode;
- filter_cmd.filter.ucast.vlan_valid = 1;
- filter_cmd.filter.ucast.vlan = vid;
+ memset(&ucast, 0, sizeof(ucast));
+ ucast.type = opcode;
+ ucast.vlan_valid = 1;
+ ucast.vlan = vid;
- return edev->ops->filter_config(edev->cdev, &filter_cmd);
+ return edev->ops->filter_config_ucast(edev->cdev, &ucast);
}
static int qede_config_accept_any_vlan(struct qede_dev *edev, bool action)
@@ -1133,18 +1131,17 @@ static int qede_set_mcast_rx_mac(struct qede_dev *edev,
enum qed_filter_xcast_params_type opcode,
unsigned char *mac, int num_macs)
{
- struct qed_filter_params filter_cmd;
+ struct qed_filter_mcast_params mcast;
int i;
- memset(&filter_cmd, 0, sizeof(filter_cmd));
- filter_cmd.type = QED_FILTER_TYPE_MCAST;
- filter_cmd.filter.mcast.type = opcode;
- filter_cmd.filter.mcast.num = num_macs;
+ memset(&mcast, 0, sizeof(mcast));
+ mcast.type = opcode;
+ mcast.num = num_macs;
for (i = 0; i < num_macs; i++, mac += ETH_ALEN)
- ether_addr_copy(filter_cmd.filter.mcast.mac[i], mac);
+ ether_addr_copy(mcast.mac[i], mac);
- return edev->ops->filter_config(edev->cdev, &filter_cmd);
+ return edev->ops->filter_config_mcast(edev->cdev, &mcast);
}
int qede_set_mac_addr(struct net_device *ndev, void *p)
@@ -1270,7 +1267,6 @@ void qede_config_rx_mode(struct net_device *ndev)
{
enum qed_filter_rx_mode_type accept_flags;
struct qede_dev *edev = netdev_priv(ndev);
- struct qed_filter_params rx_mode;
unsigned char *uc_macs, *temp;
struct netdev_hw_addr *ha;
int rc, uc_count;
@@ -1296,10 +1292,6 @@ void qede_config_rx_mode(struct net_device *ndev)
netif_addr_unlock_bh(ndev);
- /* Configure the struct for the Rx mode */
- memset(&rx_mode, 0, sizeof(struct qed_filter_params));
- rx_mode.type = QED_FILTER_TYPE_RX_MODE;
-
/* Remove all previous unicast secondary macs and multicast macs
* (configrue / leave the primary mac)
*/
@@ -1347,8 +1339,7 @@ void qede_config_rx_mode(struct net_device *ndev)
qede_config_accept_any_vlan(edev, false);
}
- rx_mode.filter.accept_flags = accept_flags;
- edev->ops->filter_config(edev->cdev, &rx_mode);
+ edev->ops->filter_config_rx_mode(edev->cdev, accept_flags);
out:
kfree(uc_macs);
}
diff --git a/include/linux/qed/qed_eth_if.h b/include/linux/qed/qed_eth_if.h
index a1310482c4ede..8e11dd56dd636 100644
--- a/include/linux/qed/qed_eth_if.h
+++ b/include/linux/qed/qed_eth_if.h
@@ -171,12 +171,6 @@ struct qed_filter_mcast_params {
unsigned char mac[64][ETH_ALEN];
};
-union qed_filter_type_params {
- enum qed_filter_rx_mode_type accept_flags;
- struct qed_filter_ucast_params ucast;
- struct qed_filter_mcast_params mcast;
-};
-
enum qed_filter_type {
QED_FILTER_TYPE_UCAST,
QED_FILTER_TYPE_MCAST,
@@ -184,11 +178,6 @@ enum qed_filter_type {
QED_MAX_FILTER_TYPES,
};
-struct qed_filter_params {
- enum qed_filter_type type;
- union qed_filter_type_params filter;
-};
-
struct qed_tunn_params {
u16 vxlan_port;
u8 update_vxlan_port;
@@ -340,8 +329,14 @@ struct qed_eth_ops {
int (*q_tx_stop)(struct qed_dev *cdev, u8 rss_id, void *handle);
- int (*filter_config)(struct qed_dev *cdev,
- struct qed_filter_params *params);
+ int (*filter_config_rx_mode)(struct qed_dev *cdev,
+ enum qed_filter_rx_mode_type type);
+
+ int (*filter_config_ucast)(struct qed_dev *cdev,
+ struct qed_filter_ucast_params *params);
+
+ int (*filter_config_mcast)(struct qed_dev *cdev,
+ struct qed_filter_mcast_params *params);
int (*fastpath_stop)(struct qed_dev *cdev);
