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| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2022-02-16 11:51:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-17 16:20:45 +0100 |
| commit | 5c2a380a5aa8c15985359904b6d47466528d2993 (patch) | |
| tree | f156ab04f51cd44f6090e9a724fbec8d14e0b02d /drivers/usb/host/xhci.h | |
| parent | e1ec140f273e1e30cea7e6d5f50934d877232121 (diff) | |
| download | linux-5c2a380a5aa8c15985359904b6d47466528d2993.tar.gz linux-5c2a380a5aa8c15985359904b6d47466528d2993.tar.bz2 linux-5c2a380a5aa8c15985359904b6d47466528d2993.zip | |
xhci: Allocate separate command structures for each LPM command
Every lpm commmand, both for USB 2 and USB 3 devies used the same
xhci->lpm_command structure to change max exit latency.
xhci->lpm_command is only protected by a hcd->bandwidth mutex, which is
not enoungh as USB 2 and USB 3 devices are behind separate HCDs.
Simplify code and avoid unnecessary locking risks by allocating
separate command structures for each lpm command, just like with
all other commands.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220216095153.1303105-7-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 5a75fe563123..8a0026ee9524 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1812,8 +1812,6 @@ struct xhci_hcd { /* slot enabling and address device helpers */ /* these are not thread safe so use mutex */ struct mutex mutex; - /* For USB 3.0 LPM enable/disable. */ - struct xhci_command *lpm_command; /* Internal mirror of the HW's dcbaa */ struct xhci_virt_device *devs[MAX_HC_SLOTS]; /* For keeping track of bandwidth domains per roothub. */ |