Skip to content

修复PCIE_MHI中关于skb大小的崩溃 #172

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
FUjr merged 1 commit into from
Feb 14, 2026
Merged

修复PCIE_MHI中关于skb大小的崩溃 #172

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
3 changes: 2 additions & 1 deletion driver/quectel_MHI/src/core/mhi_init.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -93,7 +93,8 @@ struct mhi_bus mhi_bus;

const char *to_mhi_pm_state_str(enum MHI_PM_STATE state)
{
int index = find_last_bit((unsigned long *)&state, 32);
unsigned long value = state;
int index = find_last_bit(&value, 32);

if (index >= ARRAY_SIZE(mhi_pm_state_str))
return "Invalid State";
Expand Down
36 changes: 32 additions & 4 deletions driver/quectel_MHI/src/devices/mhi_netdev_quectel.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1137,10 +1137,24 @@ static netdev_tx_t rmnet_vnd_start_xmit(struct sk_buff *skb,
}
else {
if (priv->qmap_version == 5) {
add_qhdr(skb, priv->mux_id);
struct sk_buff *new_skb = add_qhdr(skb, priv->mux_id);
if (!new_skb) {
// print error
printk(KERN_ERR"add_qhdr failed, drop skb\n");
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
skb = new_skb;
}
else if (priv->qmap_version == 9) {
add_qhdr_v5(skb, priv->mux_id);
struct sk_buff *new_skb = add_qhdr_v5(skb, priv->mux_id);
if (!new_skb) {
// print error
printk(KERN_ERR"add_qhdr_v5 failed, drop skb\n");
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
skb = new_skb;
}
else {
dev_kfree_skb_any (skb);
Expand Down Expand Up @@ -2419,10 +2433,24 @@ static netdev_tx_t mhi_netdev_xmit(struct sk_buff *skb, struct net_device *dev)
}
else if (mhi_netdev->net_type == MHI_NET_RMNET) {
if (mhi_netdev->qmap_version == 5) {
add_qhdr(skb, QUECTEL_QMAP_MUX_ID);
struct sk_buff *new_skb = add_qhdr(skb, QUECTEL_QMAP_MUX_ID);
if (!new_skb) {
// print error
printk("add_qhdr failed, drop skb, mode MHI_NET_RMNET\n");
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
skb = new_skb;
}
else if (mhi_netdev->qmap_version == 9) {
add_qhdr_v5(skb, QUECTEL_QMAP_MUX_ID);
struct sk_buff *new_skb = add_qhdr_v5(skb, QUECTEL_QMAP_MUX_ID);
if (!new_skb) {
// print error
printk("add_qhdr_v5 failed, drop skb, mode MHI_NET_RMNET\n");
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
skb = new_skb;
}
else {
dev_kfree_skb_any (skb);
Expand Down