linux-kernel - [PATCH] x86/pci: do assign root bus res if

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Message-ID: <49ED22EC.2040204@kernel.org>
Date:	Mon, 20 Apr 2009 18:35:40 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-pci@...r.kernel.org
Subject: [PATCH] x86/pci: do assign root bus res if _CRS is used


it wil be overwriten later if _CRS is used, so don't bother to set it.

[ Impact: cleanup ]

Signed-off-by: Yinghai Lu <yinghai@...nel.org>

---
 arch/x86/pci/amd_bus.c |    4 ++++
 1 file changed, 4 insertions(+)

Index: linux-2.6/arch/x86/pci/amd_bus.c
===================================================================
--- linux-2.6.orig/arch/x86/pci/amd_bus.c
+++ linux-2.6/arch/x86/pci/amd_bus.c
@@ -100,6 +100,10 @@ void x86_pci_root_bus_res_quirks(struct
 	int j;
 	struct pci_root_info *info;
 
+	/* don't go for it if _CRS is used */
+	if (pci_probe & PCI_USE__CRS)
+		return;
+
 	/* if only one root bus, don't need to anything */
 	if (pci_root_num < 2)
 		return;
--
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