From 6d3bc5e941bf94947937281b20c17cc80202de8b Mon Sep 17 00:00:00 2001 From: Mathias Nyman Date: Mon, 29 Apr 2024 17:02:29 +0300 Subject: xhci: remove xhci_check_usb2_port_capability helper This helper was only called from one function. Removing it both reduces lines of code and made it more readable. Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20240429140245.3955523-3-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.c | 29 ++++++++--------------------- 1 file changed, 8 insertions(+), 21 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 7f07672d4110..37eb37b0affa 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4507,26 +4507,13 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, return 0; } -/* check if a usb2 port supports a given extened capability protocol - * only USB2 ports extended protocol capability values are cached. - * Return 1 if capability is supported - */ -static bool xhci_check_usb2_port_capability(struct xhci_hcd *xhci, int portnum, - unsigned capability) -{ - struct xhci_port *port; - - port = xhci->usb2_rhub.ports[portnum]; - - return !!(port->port_cap->protocol_caps & capability); -} - static int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); - int portnum = udev->portnum - 1; + struct xhci_port *port; + u32 capability; - if (hcd->speed >= HCD_USB3 || !udev->lpm_capable) + if (hcd->speed >= HCD_USB3 || !udev->lpm_capable || !xhci->hw_lpm_support) return 0; /* we only support lpm for non-hub device connected to root hub yet */ @@ -4534,14 +4521,14 @@ static int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev) udev->descriptor.bDeviceClass == USB_CLASS_HUB) return 0; - if (xhci->hw_lpm_support == 1 && - xhci_check_usb2_port_capability( - xhci, portnum, XHCI_HLC)) { + port = xhci->usb2_rhub.ports[udev->portnum - 1]; + capability = port->port_cap->protocol_caps; + + if (capability & XHCI_HLC) { udev->usb2_hw_lpm_capable = 1; udev->l1_params.timeout = XHCI_L1_TIMEOUT; udev->l1_params.besl = XHCI_DEFAULT_BESL; - if (xhci_check_usb2_port_capability(xhci, portnum, - XHCI_BLC)) + if (capability & XHCI_BLC) udev->usb2_hw_lpm_besl_capable = 1; } -- cgit v1.2.3