linux-kernel - [PATCH] usb: don't hide bios bug warning

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Message-Id: <200807261812.15836.yhlu.kernel@gmail.com>
Date:	Sat, 26 Jul 2008 18:12:15 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	"Greg Kroah-Hartman" <gregkh@...e.de>, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] usb: don't hide bios bug warning


quirk_usb_disable_handoff will wait a while if there is BIOS bug.
let the end user know the reason for that.

Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>

---
 drivers/usb/host/pci-quirks.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

Index: linux-2.6/drivers/usb/host/pci-quirks.c
===================================================================
--- linux-2.6.orig/drivers/usb/host/pci-quirks.c
+++ linux-2.6/drivers/usb/host/pci-quirks.c
@@ -190,7 +190,8 @@ static void __devinit quirk_usb_handoff_
 			msleep(10);
 		}
 		if (wait_time <= 0)
-			dev_warn(&pdev->dev, "OHCI: BIOS handoff failed"
+			dev_printk(KERN_WARNING, &pdev->dev,
+					"OHCI: BIOS handoff failed"
 					" (BIOS bug?) %08x\n",
 					readl(base + OHCI_CONTROL));
 
@@ -242,7 +243,8 @@ static void __devinit quirk_usb_disable_
 		switch (cap & 0xff) {
 		case 1:			/* BIOS/SMM/... handoff support */
 			if ((cap & EHCI_USBLEGSUP_BIOS)) {
-				dev_dbg(&pdev->dev, "EHCI: BIOS handoff\n");
+				dev_printk(KERN_DEBUG, &pdev->dev,
+						"EHCI: BIOS handoff\n");
 
 #if 0
 /* aleksey_gorelov@...enix.com reports that some systems need SMI forced on,
@@ -283,7 +285,8 @@ static void __devinit quirk_usb_disable_
 				/* well, possibly buggy BIOS... try to shut
 				 * it down, and hope nothing goes too wrong
 				 */
-				dev_warn(&pdev->dev, "EHCI: BIOS handoff failed"
+				dev_printk(KERN_WARNING, &pdev->dev,
+						"EHCI: BIOS handoff failed"
 						" (BIOS bug?) %08x\n", cap);
 				pci_write_config_byte(pdev, offset + 2, 0);
 			}
--
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