From: Yinghai Lu <yinghai@kernel.org>
To: Jesse Barnes <jbarnes@virtuousgeek.org>,
Matthew Wilcox <matthew@wil.cx>, Ingo Molnar <mingo@elte.hu>
Cc: linux-pci@vger.kernel.org,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH 1/3] x86/pci: fix -1 calling to e820_all_mapped with mmconfig
Date: Sat, 18 Apr 2009 01:43:46 -0700 [thread overview]
Message-ID: <49E992C2.4010707@kernel.org> (raw)
e820_all_mapped need end is (addr + size) instead of (addr + size - 1)
[Impact: fix -1 offset calling]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
arch/x86/pci/mmconfig-shared.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
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
@@ -375,7 +375,7 @@ static acpi_status __init check_mcfg_res
if (!fixmem32)
return AE_OK;
if ((mcfg_res->start >= fixmem32->address) &&
- (mcfg_res->end < (fixmem32->address +
+ (mcfg_res->end <= (fixmem32->address +
fixmem32->address_length))) {
mcfg_res->flags = 1;
return AE_CTRL_TERMINATE;
@@ -392,7 +392,7 @@ static acpi_status __init check_mcfg_res
return AE_OK;
if ((mcfg_res->start >= address.minimum) &&
- (mcfg_res->end < (address.minimum + address.address_length))) {
+ (mcfg_res->end <= (address.minimum + address.address_length))) {
mcfg_res->flags = 1;
return AE_CTRL_TERMINATE;
}
@@ -439,7 +439,7 @@ static int __init is_mmconf_reserved(che
u64 old_size = size;
int valid = 0;
- while (!is_reserved(addr, addr + size - 1, E820_RESERVED)) {
+ while (!is_reserved(addr, addr + size, E820_RESERVED)) {
size >>= 1;
if (size < (16UL<<20))
break;
next reply other threads:[~2009-04-18 8:44 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-18 8:43 Yinghai Lu [this message]
2009-04-18 8:44 ` [PATCH 2/3] pci: don't assume pref memio are 64bit -v2 Yinghai Lu
2009-04-18 9:15 ` Ingo Molnar
2009-04-18 17:01 ` Yinghai Lu
2009-04-18 20:09 ` Ivan Kokshaysky
2009-04-18 20:25 ` Ingo Molnar
2009-04-18 8:46 ` [PATCH 3/3] pci: don't printout if the bus res size is 0 Yinghai Lu
2009-04-18 9:16 ` Ingo Molnar
2009-04-18 9:17 ` [PATCH 1/3] x86/pci: fix -1 calling to e820_all_mapped with mmconfig Ingo Molnar
2009-04-22 22:04 ` Jesse Barnes
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