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* [PATCH] x86: remove unneeded check in mmconf reject
@ 2008-02-21  6:21 Yinghai Lu
  0 siblings, 0 replies; only message in thread
From: Yinghai Lu @ 2008-02-21  6:21 UTC (permalink / raw)
  To: Ingo Molnar, Greg KH, Linux Kernel Mailing List; +Cc: Andrew Morton


mmconfig is only used to access ext conf space.
so don't need to reject MFG that only have one entry and only handle bus0

Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>

Index: linux-2.6/arch/x86/pci/mmconfig-shared.c
===================================================================
--- linux-2.6.orig/arch/x86/pci/mmconfig-shared.c
+++ linux-2.6/arch/x86/pci/mmconfig-shared.c
@@ -308,18 +308,6 @@ static void __init pci_mmcfg_reject_brok
 
 	cfg = &pci_mmcfg_config[0];
 
-	/*
-	 * Handle more broken MCFG tables on Asus etc.
-	 * They only contain a single entry for bus 0-0.
-	 */
-	if (pci_mmcfg_config_num == 1 &&
-	    cfg->pci_segment == 0 &&
-	    (cfg->start_bus_number | cfg->end_bus_number) == 0) {
-		printk(KERN_ERR "PCI: start and end of bus number is 0. "
-		       "Rejected as broken MCFG.\n");
-		goto reject;
-	}
-
 	for (i = 0; i < pci_mmcfg_config_num; i++) {
 		int valid = 0;
 		u32 size = (cfg->end_bus_number + 1) << 20;

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2008-02-21  6:21 [PATCH] x86: remove unneeded check in mmconf reject Yinghai Lu

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