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authorFelipe Balbi <felipe.balbi@linux.intel.com>2017-04-07 16:56:56 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-04-08 12:17:41 +0200
commit52407729fbeabb654d38c0c99661a41a481092d1 (patch)
treecd93814b36953114aee37171fff1b9b4d04374f7 /drivers/usb/host/xhci-dbg.c
parentusb: host: xhci: print device slot from URB tracers (diff)
downloadlinux-52407729fbeabb654d38c0c99661a41a481092d1.tar.xz
linux-52407729fbeabb654d38c0c99661a41a481092d1.zip
usb: host: xhci: extract xhci_slot_state_string()
By extracting and exposing xhci_slot_state_string() in a header file, we can re-use it to print Slot Context State from our tracepoints, which can aid in tracking down problems related to command execution. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-dbg.c')
-rw-r--r--drivers/usb/host/xhci-dbg.c14
1 files changed, 2 insertions, 12 deletions
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 2b4a00fa735d..4cfdd51340d4 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -451,19 +451,9 @@ char *xhci_get_slot_state(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx)
{
struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
+ int state = GET_SLOT_STATE(le32_to_cpu(slot_ctx->dev_state));
- switch (GET_SLOT_STATE(le32_to_cpu(slot_ctx->dev_state))) {
- case SLOT_STATE_ENABLED:
- return "enabled/disabled";
- case SLOT_STATE_DEFAULT:
- return "default";
- case SLOT_STATE_ADDRESSED:
- return "addressed";
- case SLOT_STATE_CONFIGURED:
- return "configured";
- default:
- return "reserved";
- }
+ return xhci_slot_state_string(state);
}
static void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx)