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Commit d16ba487 authored by Alan Stern's avatar Alan Stern Committed by Greg Kroah-Hartman
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USB: EHCI: convert warning messages to debug-level 



This patch (as1606) converts two warning messages in the ehci-hcd
driver to debug messages, and adds a little extra information to each.

The log messages occur when an EHCI controller takes too long (more
than 20 ms) to turn its async or periodic schedule on or off.  If this
happens at all, it's liable to happen quite often and there's no point
spamming the system log with these warnings.  Furthermore, there's
nothing much we can do about it when the problem happens.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: default avatarThomas Voegtle <tv@lio96.de>
Cc: stable <stable@vger.kernel.org> # [3.6]
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 17dcfc9b

drivers/usb/host/ehci-timer.c

+4 −2
Original line number Diff line number Diff line
@@ -118,7 +118,8 @@ static void ehci_poll_ASS(struct ehci_hcd *ehci) 
			ehci_enable_event(ehci, EHCI_HRTIMER_POLL_ASS, true);

			return;

		}

		ehci_warn(ehci, "Waited too long for the async schedule status, giving up\n");

		ehci_dbg(ehci, "Waited too long for the async schedule status (%x/%x), giving up\n",

				want, actual);

	}

	ehci->ASS_poll_count = 0;
@@ -163,7 +164,8 @@ static void ehci_poll_PSS(struct ehci_hcd *ehci) 
			ehci_enable_event(ehci, EHCI_HRTIMER_POLL_PSS, true);

			return;

		}

		ehci_warn(ehci, "Waited too long for the periodic schedule status, giving up\n");

		ehci_dbg(ehci, "Waited too long for the periodic schedule status (%x/%x), giving up\n",

				want, actual);

	}

	ehci->PSS_poll_count = 0;