diff options
| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2016-01-25 20:30:30 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-03 13:26:30 -0800 |
| commit | 5363de75307e333d89df7531f9dd8310d973ecdb (patch) | |
| tree | 5c90ec1dbcf6d1626984ec6306db7d73ee8dd3ab /drivers/usb/host/r8a66597-hcd.c | |
| parent | xhci: set slot context speed field to SuperSpeedPlus for USB 3.1 SSP devices (diff) | |
| download | linux-dev-5363de75307e333d89df7531f9dd8310d973ecdb.tar.xz linux-dev-5363de75307e333d89df7531f9dd8310d973ecdb.zip | |
usb: core: switch bus numbering to using idr
USB bus numbering is based on directly dealing with bitmaps and
defines a separate list of busses.
This can be simplified and unified by using existing idr functionality.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/r8a66597-hcd.c')
| -rw-r--r-- | drivers/usb/host/r8a66597-hcd.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 4cbd0633c5c2..1ef887361ac0 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -2099,13 +2099,8 @@ static void r8a66597_check_detect_child(struct r8a66597 *r8a66597, memset(now_map, 0, sizeof(now_map)); - list_for_each_entry(bus, &usb_bus_list, bus_list) { - if (!bus->root_hub) - continue; - - if (bus->busnum != hcd->self.busnum) - continue; - + bus = idr_find(&usb_bus_idr, hcd->self.busnum); + if (bus && bus->root_hub) { collect_usb_address_map(bus->root_hub, now_map); update_usb_address_map(r8a66597, bus->root_hub, now_map); } |