x86/ATS: remove unreferenced lock member from struct pci_ats_dev

Otherwise this may give the false impression that some explicit
locking is done in this code.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

diff --git a/xen/drivers/passthrough/vtd/x86/ats.c b/xen/drivers/passthrough/vtd/x86/ats.c
index 8a4869672787fc50dcc46467b03b01de43e7977a..de7dab46ee52fc4ff905419c41dbc847fa5e62f6 100644 (file)
--- a/xen/drivers/passthrough/vtd/x86/ats.c
+++ b/xen/drivers/passthrough/vtd/x86/ats.c
@@ -40,7 +40,6 @@ struct pci_ats_dev {
     u8 bus;
     u8 devfn;
     u16 ats_queue_depth;    /* ATS device invalidation queue depth */
-    spinlock_t lock;
 };
 static LIST_HEAD(ats_devices);