diff options
Diffstat (limited to 'drivers/usb/host/xhci-dbg.c')
| -rw-r--r-- | drivers/usb/host/xhci-dbg.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index 5d5e58fdeccc..73503a81ee81 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -580,3 +580,17 @@ void xhci_dbg_ctx(struct xhci_hcd *xhci, xhci_dbg_slot_ctx(xhci, ctx); xhci_dbg_ep_ctx(xhci, ctx, last_ep); } + +void xhci_dbg_trace(struct xhci_hcd *xhci, void (*trace)(struct va_format *), + const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + + va_start(args, fmt); + vaf.fmt = fmt; + vaf.va = &args; + xhci_dbg(xhci, "%pV\n", &vaf); + trace(&vaf); + va_end(args); +} |