From 5f1257b5fffd9e919e7f12920621568f98862294 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Wed, 21 Sep 2022 15:34:47 +0300 Subject: [PATCH] UPSTREAM: xhci: Don't show warning for reinit on known broken suspend commit 8b328f8002bc ("xhci: re-initialize the HC during resume if HCE was set") introduced a new warning message when the host controller error was set and re-initializing. This is expected behavior on some designs which already set `xhci->broken_suspend` so the new warning is alarming to some users. Modify the code to only show the warning if this was a surprising behavior to the XHCI driver. Bug: 254441685 Link: https://bugzilla.kernel.org/show_bug.cgi?id=216470 Fixes: 8b328f8002bc ("xhci: re-initialize the HC during resume if HCE was set") Reported-by: Artem S. Tashkinov Signed-off-by: Mario Limonciello Signed-off-by: Mathias Nyman Link: https://lore.kernel.org/r/20220921123450.671459-4-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman (cherry picked from commit 484d6f7aa3283d082c87654b7fe7a7f725423dfb) Signed-off-by: Lee Jones Change-Id: Icf85934a304d1fa18c68b9b4ed08dce60f85a403 --- drivers/usb/host/xhci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 82eb4a65e068..9f755314649d 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1172,7 +1172,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) /* re-initialize the HC on Restore Error, or Host Controller Error */ if (temp & (STS_SRE | STS_HCE)) { reinit_xhc = true; - xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp); + if (!xhci->broken_suspend) + xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp); } if (reinit_xhc) {