Merge tag 'v4.20-rc6' into rdma.git for-next

For dependencies in following patches.

1 files changed, 20 insertions, 15 deletions

diff --git a/arch/x86/xen/multicalls.c b/arch/x86/xen/multicalls.c
index 2bce7958ce8b..0766a08bdf45 100644
--- a/arch/x86/xen/multicalls.c
+++ b/arch/x86/xen/multicalls.c
@@ -69,6 +69,11 @@ void xen_mc_flush(void)
 
 	trace_xen_mc_flush(b->mcidx, b->argidx, b->cbidx);
 
+#if MC_DEBUG
+	memcpy(b->debug, b->entries,
+	       b->mcidx * sizeof(struct multicall_entry));
+#endif
+
 	switch (b->mcidx) {
 	case 0:
 		/* no-op */
@@ -87,32 +92,34 @@ void xen_mc_flush(void)
 		break;
 
 	default:
-#if MC_DEBUG
-		memcpy(b->debug, b->entries,
-		       b->mcidx * sizeof(struct multicall_entry));
-#endif
-
 		if (HYPERVISOR_multicall(b->entries, b->mcidx) != 0)
 			BUG();
 		for (i = 0; i < b->mcidx; i++)
 			if (b->entries[i].result < 0)
 				ret++;
+	}
 
+	if (WARN_ON(ret)) {
+		pr_err("%d of %d multicall(s) failed: cpu %d\n",
+		       ret, b->mcidx, smp_processor_id());
+		for (i = 0; i < b->mcidx; i++) {
+			if (b->entries[i].result < 0) {
 #if MC_DEBUG
-		if (ret) {
-			printk(KERN_ERR "%d multicall(s) failed: cpu %d\n",
-			       ret, smp_processor_id());
-			dump_stack();
-			for (i = 0; i < b->mcidx; i++) {
-				printk(KERN_DEBUG "  call %2d/%d: op=%lu arg=[%lx] result=%ld\t%pF\n",
-				       i+1, b->mcidx,
+				pr_err("  call %2d: op=%lu arg=[%lx] result=%ld\t%pF\n",
+				       i + 1,
 				       b->debug[i].op,
 				       b->debug[i].args[0],
 				       b->entries[i].result,
 				       b->caller[i]);
+#else
+				pr_err("  call %2d: op=%lu arg=[%lx] result=%ld\n",
+				       i + 1,
+				       b->entries[i].op,
+				       b->entries[i].args[0],
+				       b->entries[i].result);
+#endif
 			}
 		}
-#endif
 	}
 
 	b->mcidx = 0;
@@ -126,8 +133,6 @@ void xen_mc_flush(void)
 	b->cbidx = 0;
 
 	local_irq_restore(flags);
-
-	WARN_ON(ret);
 }
 
 struct multicall_space __xen_mc_entry(size_t args)