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Commit 96d9a6eb authored by Lu Baolu's avatar Lu Baolu Committed by Greg Kroah-Hartman
Browse files

usb: xhci: fix link trb decoding 



xhci_decode_trb() treats a link trb in the same way as that for
an event trb. This patch fixes this by decoding the link trb
according to the spec.

Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c8844f2d

drivers/usb/host/xhci.h

+5 −7
Original line number Diff line number Diff line
@@ -2135,14 +2135,12 @@ static inline const char *xhci_decode_trb(u32 field0, u32 field1, u32 field2, 
	switch (type) {

	case TRB_LINK:

		sprintf(str,

			"TRB %08x%08x status '%s' len %d slot %d ep %d type '%s' flags %c:%c",

			field1, field0,

			xhci_trb_comp_code_string(GET_COMP_CODE(field2)),

			EVENT_TRB_LEN(field2), TRB_TO_SLOT_ID(field3),

			/* Macro decrements 1, maybe it shouldn't?!? */

			TRB_TO_EP_INDEX(field3) + 1,

			"LINK %08x%08x intr %d type '%s' flags %c:%c:%c:%c",

			field1, field0, GET_INTR_TARGET(field2),

			xhci_trb_type_string(TRB_FIELD_TO_TYPE(field3)),

			field3 & EVENT_DATA ? 'E' : 'e',

			field3 & TRB_IOC ? 'I' : 'i',

			field3 & TRB_CHAIN ? 'C' : 'c',

			field3 & TRB_TC ? 'T' : 't',

			field3 & TRB_CYCLE ? 'C' : 'c');

		break;

	case TRB_TRANSFER: