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authorLen Brown <len.brown@intel.com>2011-03-23 07:34:54 +0100
committerLen Brown <len.brown@intel.com>2011-03-23 07:34:54 +0100
commit02e2407858fd62053bf60349c0e72cd1c7a4a60e (patch)
tree0ebdbddc97d3abbc675916010e7771065b70c137 /drivers/scsi/libsas/sas_expander.c
parentMerge branch 'battery-sysfs-notifier' into release (diff)
parentMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/asy... (diff)
downloadlinux-02e2407858fd62053bf60349c0e72cd1c7a4a60e.tar.xz
linux-02e2407858fd62053bf60349c0e72cd1c7a4a60e.zip
Merge branch 'linus' into release
Conflicts: arch/x86/kernel/acpi/sleep.c Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/scsi/libsas/sas_expander.c')
-rw-r--r--drivers/scsi/libsas/sas_expander.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 505ffe358293..f3f693b772ac 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -244,6 +244,11 @@ static int sas_ex_phy_discover_helper(struct domain_device *dev, u8 *disc_req,
* dev to host FIS as described in section G.5 of
* sas-2 r 04b */
dr = &((struct smp_resp *)disc_resp)->disc;
+ if (memcmp(dev->sas_addr, dr->attached_sas_addr,
+ SAS_ADDR_SIZE) == 0) {
+ sas_printk("Found loopback topology, just ignore it!\n");
+ return 0;
+ }
if (!(dr->attached_dev_type == 0 &&
dr->attached_sata_dev))
break;