This is a note to let you know that I've just added the patch titled
xhci: fix endpoint context tracer output
to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: xhci-fix-endpoint-context-tracer-output.patch and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From 97ef0faf575e03b352553f92c9430cb4c0431436 Mon Sep 17 00:00:00 2001
From: Mathias Nyman mathias.nyman@linux.intel.com Date: Thu, 8 Mar 2018 17:17:14 +0200 Subject: xhci: fix endpoint context tracer output
From: Mathias Nyman mathias.nyman@linux.intel.com
commit 97ef0faf575e03b352553f92c9430cb4c0431436 upstream.
Fix incorrent values showed for max Primary stream and Linear stream array (LSA) values in the endpoint context decoder.
Fixes: 19a7d0d65c4a ("usb: host: xhci: add Slot and EP Context tracers") Cc: stable@vger.kernel.org # v4.12+ Signed-off-by: Mathias Nyman mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/usb/host/xhci.h | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-)
--- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -718,11 +718,12 @@ struct xhci_ep_ctx { /* bits 10:14 are Max Primary Streams */ /* bit 15 is Linear Stream Array */ /* Interval - period between requests to an endpoint - 125u increments. */ -#define EP_INTERVAL(p) (((p) & 0xff) << 16) -#define EP_INTERVAL_TO_UFRAMES(p) (1 << (((p) >> 16) & 0xff)) -#define CTX_TO_EP_INTERVAL(p) (((p) >> 16) & 0xff) -#define EP_MAXPSTREAMS_MASK (0x1f << 10) -#define EP_MAXPSTREAMS(p) (((p) << 10) & EP_MAXPSTREAMS_MASK) +#define EP_INTERVAL(p) (((p) & 0xff) << 16) +#define EP_INTERVAL_TO_UFRAMES(p) (1 << (((p) >> 16) & 0xff)) +#define CTX_TO_EP_INTERVAL(p) (((p) >> 16) & 0xff) +#define EP_MAXPSTREAMS_MASK (0x1f << 10) +#define EP_MAXPSTREAMS(p) (((p) << 10) & EP_MAXPSTREAMS_MASK) +#define CTX_TO_EP_MAXPSTREAMS(p) (((p) & EP_MAXPSTREAMS_MASK) >> 10) /* Endpoint is set up with a Linear Stream Array (vs. Secondary Stream Array) */ #define EP_HAS_LSA (1 << 15) /* hosts with LEC=1 use bits 31:24 as ESIT high bits. */ @@ -2538,21 +2539,22 @@ static inline const char *xhci_decode_ep u8 burst; u8 cerr; u8 mult; - u8 lsa; - u8 hid; + + bool lsa; + bool hid;
esit = CTX_TO_MAX_ESIT_PAYLOAD_HI(info) << 16 | CTX_TO_MAX_ESIT_PAYLOAD(tx_info);
ep_state = info & EP_STATE_MASK; - max_pstr = info & EP_MAXPSTREAMS_MASK; + max_pstr = CTX_TO_EP_MAXPSTREAMS(info); interval = CTX_TO_EP_INTERVAL(info); mult = CTX_TO_EP_MULT(info) + 1; - lsa = info & EP_HAS_LSA; + lsa = !!(info & EP_HAS_LSA);
cerr = (info2 & (3 << 1)) >> 1; ep_type = CTX_TO_EP_TYPE(info2); - hid = info2 & (1 << 7); + hid = !!(info2 & (1 << 7)); burst = CTX_TO_MAX_BURST(info2); maxp = MAX_PACKET_DECODED(info2);
Patches currently in stable-queue which might be from mathias.nyman@linux.intel.com are
queue-4.15/xhci-fix-front-usb-ports-on-asus-prime-b350m-a.patch queue-4.15/xhci-fix-endpoint-context-tracer-output.patch