From 484d6f7aa3283d082c87654b7fe7a7f725423dfb Mon Sep 17 00:00:00 2001
From: Mario Limonciello <mario.limonciello@amd.com>
Date: Wed, 21 Sep 2022 15:34:47 +0300
Subject: [PATCH] xhci: Don't show warning for reinit on known broken suspend
Git-commit: 484d6f7aa3283d082c87654b7fe7a7f725423dfb
Patch-mainline: v6.1-rc1
References: git-fixes
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.
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 <aros@gmx.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220921123450.671459-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 e8837c5d6f5c..9f6b55281f44 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1183,7 +1183,8 @@ 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) {
--
2.35.3