add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/x86/xen/multicalls.c
..
..
@@ -69,6 +69,11 @@
69
69
 
70
70
 	trace_xen_mc_flush(b->mcidx, b->argidx, b->cbidx);
71
71
 
72
+#if MC_DEBUG
73
+	memcpy(b->debug, b->entries,
74
+	       b->mcidx * sizeof(struct multicall_entry));
75
+#endif
76
+
72
77
 	switch (b->mcidx) {
73
78
 	case 0:
74
79
 		/* no-op */
..
..
@@ -87,32 +92,34 @@
87
92
 		break;
88
93
 
89
94
 	default:
90
-#if MC_DEBUG
91
-		memcpy(b->debug, b->entries,
92
-		       b->mcidx * sizeof(struct multicall_entry));
93
-#endif
94
-
95
95
 		if (HYPERVISOR_multicall(b->entries, b->mcidx) != 0)
96
96
 			BUG();
97
97
 		for (i = 0; i < b->mcidx; i++)
98
98
 			if (b->entries[i].result < 0)
99
99
 				ret++;
100
+	}
100
101
 
102
+	if (WARN_ON(ret)) {
103
+		pr_err("%d of %d multicall(s) failed: cpu %d\n",
104
+		       ret, b->mcidx, smp_processor_id());
105
+		for (i = 0; i < b->mcidx; i++) {
106
+			if (b->entries[i].result < 0) {
101
107
 #if MC_DEBUG
102
-		if (ret) {
103
-			printk(KERN_ERR "%d multicall(s) failed: cpu %d\n",
104
-			       ret, smp_processor_id());
105
-			dump_stack();
106
-			for (i = 0; i < b->mcidx; i++) {
107
-				printk(KERN_DEBUG "  call %2d/%d: op=%lu arg=[%lx] result=%ld\t%pF\n",
108
-				       i+1, b->mcidx,
108
+				pr_err("  call %2d: op=%lu arg=[%lx] result=%ld\t%pS\n",
109
+				       i + 1,
109
110
 				       b->debug[i].op,
110
111
 				       b->debug[i].args[0],
111
112
 				       b->entries[i].result,
112
113
 				       b->caller[i]);
114
+#else
115
+				pr_err("  call %2d: op=%lu arg=[%lx] result=%ld\n",
116
+				       i + 1,
117
+				       b->entries[i].op,
118
+				       b->entries[i].args[0],
119
+				       b->entries[i].result);
120
+#endif
113
121
 			}
114
122
 		}
115
-#endif
116
123
 	}
117
124
 
118
125
 	b->mcidx = 0;
..
..
@@ -126,8 +133,6 @@
126
133
 	b->cbidx = 0;
127
134
 
128
135
 	local_irq_restore(flags);
129
-
130
-	WARN_ON(ret);
131
136
 }
132
137
 
133
138
 struct multicall_space __xen_mc_entry(size_t args)