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wireless-drivers fixes for 4.17 

Two last minute fixes, hopefully they make it to 4.17 still.
 
 rt2x00
 
 * revert a fix which caused even more problems
 
 iwlwifi
 
 * fix a crash when there are 16 or more logical CPUs
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Merge tag 'wireless-drivers-for-davem-2018-05-30' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
wireless-drivers fixes for 4.17

Two last minute fixes, hopefully they make it to 4.17 still.

rt2x00

* revert a fix which caused even more problems

iwlwifi

* fix a crash when there are 16 or more logical CPUs
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-05-31 15:27:39 -04:00
parent 8258d2da9f ab1068d686
commit be20f28fbd
2 changed files with 8 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/intel/iwlwifi/pcie/trans.c
View File

@ -1590,14 +1590,13 @@ static void iwl_pcie_set_interrupt_capa(struct pci_dev *pdev,
struct iwl_trans *trans)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
int max_irqs, num_irqs, i, ret, nr_online_cpus;
int max_irqs, num_irqs, i, ret;
u16 pci_cmd;
if (!trans->cfg->mq_rx_supported)
goto enable_msi;
nr_online_cpus = num_online_cpus();
max_irqs = min_t(u32, nr_online_cpus + 2, IWL_MAX_RX_HW_QUEUES);
max_irqs = min_t(u32, num_online_cpus() + 2, IWL_MAX_RX_HW_QUEUES);
for (i = 0; i < max_irqs; i++)
trans_pcie->msix_entries[i].entry = i;
@ -1623,16 +1622,17 @@ static void iwl_pcie_set_interrupt_capa(struct pci_dev *pdev,
* Two interrupts less: non rx causes shared with FBQ and RSS.
* More than two interrupts: we will use fewer RSS queues.
*/
if (num_irqs <= nr_online_cpus) {
if (num_irqs <= max_irqs - 2) {
trans_pcie->trans->num_rx_queues = num_irqs + 1;
trans_pcie->shared_vec_mask = IWL_SHARED_IRQ_NON_RX |
IWL_SHARED_IRQ_FIRST_RSS;
} else if (num_irqs == nr_online_cpus + 1) {
} else if (num_irqs == max_irqs - 1) {
trans_pcie->trans->num_rx_queues = num_irqs;
trans_pcie->shared_vec_mask = IWL_SHARED_IRQ_NON_RX;
} else {
trans_pcie->trans->num_rx_queues = num_irqs - 1;
}
WARN_ON(trans_pcie->trans->num_rx_queues > IWL_MAX_RX_HW_QUEUES);
trans_pcie->alloc_vecs = num_irqs;
trans_pcie->msix_enabled = true;

7
drivers/net/wireless/ralink/rt2x00/rt2x00queue.c
View File

@ -372,16 +372,15 @@ static void rt2x00queue_create_tx_descriptor_ht(struct rt2x00_dev *rt2x00dev,
/*
* Determine IFS values
* - Use TXOP_BACKOFF for probe and management frames except beacons
* - Use TXOP_BACKOFF for management frames except beacons
* - Use TXOP_SIFS for fragment bursts
* - Use TXOP_HTTXOP for everything else
*
* Note: rt2800 devices won't use CTS protection (if used)
* for frames not transmitted with TXOP_HTTXOP
*/
if ((ieee80211_is_mgmt(hdr->frame_control) &&
!ieee80211_is_beacon(hdr->frame_control)) ||
(tx_info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE))
if (ieee80211_is_mgmt(hdr->frame_control) &&
!ieee80211_is_beacon(hdr->frame_control))
txdesc->u.ht.txop = TXOP_BACKOFF;
else if (!(tx_info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT))
txdesc->u.ht.txop = TXOP_SIFS;