Instead of variable 'msix_count' containing the number of MSI-X vectors,
now it can contains MSI or MSI-X vector amount. Because both interrupt
methods allow several vectors. Thus, 'msix_count' is renamed to 'nvecs'.
Additionally, instead of storing the maximum possible vector amount,
now it stores the amount of successfully allocated vectors, or negative
integer on allocation failure.
Signed-off-by: Niklas Neronin <niklas.neronin@xxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-pci.c | 14 +++++++-------
drivers/usb/host/xhci.h | 4 ++--
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 79c4eccd7ae3..3ee3943db867 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -142,12 +142,12 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd)
* - num_online_cpus: maximum MSI-X vectors per CPUs core.
* Add additional 1 vector to ensure always available interrupt.
*/
- xhci->msix_count = min(num_online_cpus() + 1,
- HCS_MAX_INTRS(xhci->hcs_params1));
+ xhci->nvecs = min(num_online_cpus() + 1,
+ HCS_MAX_INTRS(xhci->hcs_params1));
- ret = pci_alloc_irq_vectors(pdev, xhci->msix_count, xhci->msix_count,
- PCI_IRQ_MSIX);
- if (ret < 0) {
+ xhci->nvecs = pci_alloc_irq_vectors(pdev, xhci->nvecs, xhci->nvecs,
+ PCI_IRQ_MSIX);
+ if (xhci->nvecs < 0) {
xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Failed to enable MSI-X");
goto setup_msi;
}
@@ -166,8 +166,8 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd)
setup_msi:
/* TODO: Check with MSI Soc for sysdev */
- ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
- if (ret < 0) {
+ xhci->nvecs = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
+ if (xhci->nvecs < 0) {
xhci_dbg_trace(xhci, trace_xhci_dbg_init, "failed to allocate MSI entry");
goto legacy_irq;
}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 5df370482521..999914711ef5 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1790,8 +1790,8 @@ struct xhci_hcd {
int page_size;
/* Valid values are 12 to 20, inclusive */
int page_shift;
- /* msi-x vectors */
- int msix_count;
+ /* MSI-X/MSI vectors */
+ int nvecs;
/* optional clocks */
struct clk *clk;
struct clk *reg_clk;
--
2.40.1
