add boot partition size

hc

2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d

 kernel/drivers/parport/daisy.c
..
..
@@ -30,12 +30,6 @@
30
30
 
31
31
 #undef DEBUG
32
32
 
33
-#ifdef DEBUG
34
-#define DPRINTK(stuff...) printk(stuff)
35
-#else
36
-#define DPRINTK(stuff...)
37
-#endif
38
-
39
33
 static struct daisydev {
40
34
 	struct daisydev *next;
41
35
 	struct parport *port;
..
..
@@ -45,6 +39,7 @@
45
39
 static DEFINE_SPINLOCK(topology_lock);
46
40
 
47
41
 static int numdevs;
42
+static bool daisy_init_done;
48
43
 
49
44
 /* Forward-declaration of lower-level functions. */
50
45
 static int mux_present(struct parport *port);
..
..
@@ -87,6 +82,24 @@
87
82
 	return extra;
88
83
 }
89
84
 
85
+static int daisy_drv_probe(struct pardevice *par_dev)
86
+{
87
+	struct device_driver *drv = par_dev->dev.driver;
88
+
89
+	if (strcmp(drv->name, "daisy_drv"))
90
+		return -ENODEV;
91
+	if (strcmp(par_dev->name, daisy_dev_name))
92
+		return -ENODEV;
93
+
94
+	return 0;
95
+}
96
+
97
+static struct parport_driver daisy_driver = {
98
+	.name = "daisy_drv",
99
+	.probe = daisy_drv_probe,
100
+	.devmodel = true,
101
+};
102
+
90
103
 /* Discover the IEEE1284.3 topology on a port -- muxes and daisy chains.
91
104
  * Return value is number of devices actually detected. */
92
105
 int parport_daisy_init(struct parport *port)
..
..
@@ -97,6 +110,23 @@
97
110
 	int num_ports;
98
111
 	int i;
99
112
 	int last_try = 0;
113
+
114
+	if (!daisy_init_done) {
115
+		/*
116
+		 * flag should be marked true first as
117
+		 * parport_register_driver() might try to load the low
118
+		 * level driver which will lead to announcing new ports
119
+		 * and which will again come back here at
120
+		 * parport_daisy_init()
121
+		 */
122
+		daisy_init_done = true;
123
+		i = parport_register_driver(&daisy_driver);
124
+		if (i) {
125
+			pr_err("daisy registration failed\n");
126
+			daisy_init_done = false;
127
+			return i;
128
+		}
129
+	}
100
130
 
101
131
 again:
102
132
 	/* Because this is called before any other devices exist,
..
..
@@ -109,8 +139,7 @@
109
139
 	    ((num_ports = num_mux_ports(port)) == 2 || num_ports == 4)) {
110
140
 		/* Leave original as port zero. */
111
141
 		port->muxport = 0;
112
-		printk(KERN_INFO
113
-			"%s: 1st (default) port of %d-way multiplexor\n",
142
+		pr_info("%s: 1st (default) port of %d-way multiplexor\n",
114
143
 			port->name, num_ports);
115
144
 		for (i = 1; i < num_ports; i++) {
116
145
 			/* Clone the port. */
..
..
@@ -123,8 +152,7 @@
123
152
 				continue;
124
153
 			}
125
154
 
126
-			printk(KERN_INFO
127
-				"%s: %d%s port of %d-way multiplexor on %s\n",
155
+			pr_info("%s: %d%s port of %d-way multiplexor on %s\n",
128
156
 				extra->name, i + 1, th[i + 1], num_ports,
129
157
 				port->name);
130
158
 
..
..
@@ -213,10 +241,12 @@
213
241
 struct pardevice *parport_open(int devnum, const char *name)
214
242
 {
215
243
 	struct daisydev *p = topology;
244
+	struct pardev_cb par_cb;
216
245
 	struct parport *port;
217
246
 	struct pardevice *dev;
218
247
 	int daisy;
219
248
 
249
+	memset(&par_cb, 0, sizeof(par_cb));
220
250
 	spin_lock(&topology_lock);
221
251
 	while (p && p->devnum != devnum)
222
252
 		p = p->next;
..
..
@@ -230,7 +260,7 @@
230
260
 	port = parport_get_port(p->port);
231
261
 	spin_unlock(&topology_lock);
232
262
 
233
-	dev = parport_register_device(port, name, NULL, NULL, NULL, 0, NULL);
263
+	dev = parport_register_dev_model(port, name, &par_cb, devnum);
234
264
 	parport_put_port(port);
235
265
 	if (!dev)
236
266
 		return NULL;
..
..
@@ -285,8 +315,7 @@
285
315
 		  | PARPORT_STATUS_PAPEROUT
286
316
 		  | PARPORT_STATUS_SELECT
287
317
 		  | PARPORT_STATUS_ERROR)) {
288
-		DPRINTK(KERN_DEBUG "%s: cpp_daisy: aa5500ff(%02x)\n",
289
-			 port->name, s);
318
+		pr_debug("%s: cpp_daisy: aa5500ff(%02x)\n", port->name, s);
290
319
 		return -ENXIO;
291
320
 	}
292
321
 
..
..
@@ -296,8 +325,7 @@
296
325
 					  | PARPORT_STATUS_SELECT
297
326
 					  | PARPORT_STATUS_ERROR);
298
327
 	if (s != (PARPORT_STATUS_SELECT | PARPORT_STATUS_ERROR)) {
299
-		DPRINTK(KERN_DEBUG "%s: cpp_daisy: aa5500ff87(%02x)\n",
300
-			 port->name, s);
328
+		pr_debug("%s: cpp_daisy: aa5500ff87(%02x)\n", port->name, s);
301
329
 		return -ENXIO;
302
330
 	}
303
331
 
..
..
@@ -332,7 +360,7 @@
332
360
 
333
361
 	s = parport_read_status(port);
334
362
 	if (!(s & PARPORT_STATUS_ACK)) {
335
-		DPRINTK(KERN_DEBUG "%s: cpp_mux: aa55f00f52ad%02x(%02x)\n",
363
+		pr_debug("%s: cpp_mux: aa55f00f52ad%02x(%02x)\n",
336
364
 			 port->name, cmd, s);
337
365
 		return -EIO;
338
366
 	}
..
..
@@ -418,8 +446,7 @@
418
446
 		  | PARPORT_STATUS_PAPEROUT
419
447
 		  | PARPORT_STATUS_SELECT
420
448
 		  | PARPORT_STATUS_ERROR)) {
421
-		DPRINTK(KERN_DEBUG "%s: assign_addrs: aa5500ff(%02x)\n",
422
-			 port->name, s);
449
+		pr_debug("%s: assign_addrs: aa5500ff(%02x)\n", port->name, s);
423
450
 		return 0;
424
451
 	}
425
452
 
..
..
@@ -429,8 +456,7 @@
429
456
 					  | PARPORT_STATUS_SELECT
430
457
 					  | PARPORT_STATUS_ERROR);
431
458
 	if (s != (PARPORT_STATUS_SELECT | PARPORT_STATUS_ERROR)) {
432
-		DPRINTK(KERN_DEBUG "%s: assign_addrs: aa5500ff87(%02x)\n",
433
-			 port->name, s);
459
+		pr_debug("%s: assign_addrs: aa5500ff87(%02x)\n", port->name, s);
434
460
 		return 0;
435
461
 	}
436
462
 
..
..
@@ -467,8 +493,7 @@
467
493
 
468
494
 	parport_write_data(port, 0xff); udelay(2);
469
495
 	detected = numdevs - thisdev;
470
-	DPRINTK(KERN_DEBUG "%s: Found %d daisy-chained devices\n", port->name,
471
-		 detected);
496
+	pr_debug("%s: Found %d daisy-chained devices\n", port->name, detected);
472
497
 
473
498
 	/* Ask the new devices to introduce themselves. */
474
499
 	deviceid = kmalloc(1024, GFP_KERNEL);