diff options
| author | Brian Norris <briannorris@chromium.org> | 2022-10-29 04:45:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-09 14:36:19 +0300 |
| commit | 4c2604a9a6899bab195edbee35fc8d64ce1444aa (patch) | |
| tree | d7c6282a476d99299a0cf3888cbf40cf0d41b71e /drivers/usb | |
| parent | ee9834636f9b07fe1dcf3fffbb325318cdb267d5 (diff) | |
| download | linux-4c2604a9a6899bab195edbee35fc8d64ce1444aa.tar.xz | |
usb: xhci-pci: Set PROBE_PREFER_ASYNCHRONOUS
This driver often takes on the order of 10ms to start, but in some cases
takes more than 100ms. It shouldn't have many cross-device dependencies
to race with, nor racy access to shared state with other drivers, so
this should be a relatively low risk change.
This driver was pinpointed as part of a survey of top slowest initcalls
(i.e., are built in, and probing synchronously) on a lab of ChromeOS
systems.
Signed-off-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20221028184507.v2.2.I5a309231785d3a4e37118a25e84f5caa0136a343@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 7bccbe50bab1..a29b681b562e 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -673,11 +673,12 @@ static struct pci_driver xhci_pci_driver = { /* suspend and resume implemented later */ .shutdown = usb_hcd_pci_shutdown, -#ifdef CONFIG_PM .driver = { - .pm = &usb_hcd_pci_pm_ops - }, +#ifdef CONFIG_PM + .pm = &usb_hcd_pci_pm_ops, #endif + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + }, }; static int __init xhci_pci_init(void) |