1 From: Suresh Siddha <suresh.b.siddha@intel.com>
2 Subject: dmar: fix dmar_parse_dev() devices_cnt error condition check
3 References: fate #303948 and fate #303984
4 Patch-Mainline: queued for .28
5 Commit-ID: 0f4896665a02b465ddca59a560983b24ec28c64b
7 Signed-off-by: Thomas Renninger <trenn@suse.de>
10 instead of PCI endpoint/sub-hierarchy structures, only IO-APIC/HPET
11 devices may be reported under device scope structures. Fix the devices_cnt
12 error check, which cares about only PCI structures and removes the
13 dma-remapping unit structure (dmaru) when the devices_cnt is zero
14 and include_all flag is not set.
16 Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
17 Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
18 Signed-off-by: Ingo Molnar <mingo@elte.hu>
21 drivers/pci/dmar.c | 2 +-
22 1 file changed, 1 insertion(+), 1 deletion(-)
24 Index: linux-2.6.26/drivers/pci/dmar.c
25 ===================================================================
26 --- linux-2.6.26.orig/drivers/pci/dmar.c
27 +++ linux-2.6.26/drivers/pci/dmar.c
28 @@ -212,7 +212,7 @@ dmar_parse_dev(struct dmar_drhd_unit *dm
32 - if (ret || (dmaru->devices_cnt == 0 && !dmaru->include_all)) {
34 list_del(&dmaru->list);