From 52407729fbeabb654d38c0c99661a41a481092d1 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 7 Apr 2017 17:56:56 +0300 Subject: [PATCH] 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 Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-dbg.c | 14 ++------------ drivers/usb/host/xhci.h | 16 ++++++++++++++++ 2 files changed, 18 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) diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 675d552e420e..44d031c87108 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -2158,6 +2158,22 @@ static inline struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci, urb->stream_id); } +static inline char *xhci_slot_state_string(u32 state) +{ + switch (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"; + } +} + static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, u32 field3) { -- GitLab