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Merge branch '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

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Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2025-04-29 (idpf, igc)

For idpf:
Michal fixes error path handling to remove memory leak.

Larysa prevents reset from being called during shutdown.

For igc:
Jake adjusts locking order to resolve sleeping in atomic context.

* '200GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  igc: fix lock order in igc_ptp_reset
  idpf: protect shutdown from reset
  idpf: fix potential memory leak on kcalloc() failure
====================

Link: https://patch.msgid.link/20250429221034.3909139-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2025-05-01 07:17:15 -07:00
parent 34f42736b3 c7d6cb96d5
commit c60e7877d0
3 changed files with 16 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/intel/idpf/idpf_lib.c
View File

@@ -1113,11 +1113,9 @@ static struct idpf_vport *idpf_vport_alloc(struct idpf_adapter *adapter,
num_max_q = max(max_q->max_txq, max_q->max_rxq);
vport->q_vector_idxs = kcalloc(num_max_q, sizeof(u16), GFP_KERNEL);
if (!vport->q_vector_idxs) {
kfree(vport);
if (!vport->q_vector_idxs)
goto free_vport;
return NULL;
}
idpf_vport_init(vport, max_q);
/* This alloc is done separate from the LUT because it's not strictly
@@ -1127,11 +1125,9 @@ static struct idpf_vport *idpf_vport_alloc(struct idpf_adapter *adapter,
*/
rss_data = &adapter->vport_config[idx]->user_config.rss_data;
rss_data->rss_key = kzalloc(rss_data->rss_key_size, GFP_KERNEL);
if (!rss_data->rss_key) {
kfree(vport);
if (!rss_data->rss_key)
goto free_vector_idxs;
return NULL;
}
/* Initialize default rss key */
netdev_rss_key_fill((void *)rss_data->rss_key, rss_data->rss_key_size);
@@ -1144,6 +1140,13 @@ static struct idpf_vport *idpf_vport_alloc(struct idpf_adapter *adapter,
adapter->next_vport = idpf_get_free_slot(adapter);
return vport;
free_vector_idxs:
kfree(vport->q_vector_idxs);
free_vport:
kfree(vport);
return NULL;
}
/**

1
drivers/net/ethernet/intel/idpf/idpf_main.c
View File

@@ -89,6 +89,7 @@ static void idpf_shutdown(struct pci_dev *pdev)
{
struct idpf_adapter *adapter = pci_get_drvdata(pdev);
cancel_delayed_work_sync(&adapter->serv_task);
cancel_delayed_work_sync(&adapter->vc_event_task);
idpf_vc_core_deinit(adapter);
idpf_deinit_dflt_mbx(adapter);

6
drivers/net/ethernet/intel/igc/igc_ptp.c
View File

@@ -1290,6 +1290,8 @@ void igc_ptp_reset(struct igc_adapter *adapter)
/* reset the tstamp_config */
igc_ptp_set_timestamp_mode(adapter, &adapter->tstamp_config);
mutex_lock(&adapter->ptm_lock);
spin_lock_irqsave(&adapter->tmreg_lock, flags);
switch (adapter->hw.mac.type) {
@@ -1308,7 +1310,6 @@ void igc_ptp_reset(struct igc_adapter *adapter)
if (!igc_is_crosststamp_supported(adapter))
break;
mutex_lock(&adapter->ptm_lock);
wr32(IGC_PCIE_DIG_DELAY, IGC_PCIE_DIG_DELAY_DEFAULT);
wr32(IGC_PCIE_PHY_DELAY, IGC_PCIE_PHY_DELAY_DEFAULT);
@@ -1332,7 +1333,6 @@ void igc_ptp_reset(struct igc_adapter *adapter)
netdev_err(adapter->netdev, "Timeout reading IGC_PTM_STAT register\n");
igc_ptm_reset(hw);
mutex_unlock(&adapter->ptm_lock);
break;
default:
/* No work to do. */
@@ -1349,5 +1349,7 @@ void igc_ptp_reset(struct igc_adapter *adapter)
out:
spin_unlock_irqrestore(&adapter->tmreg_lock, flags);
mutex_unlock(&adapter->ptm_lock);
wrfl();
}