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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/pci/hotplug/ibmphp_core.c
..
..
@@ -247,11 +247,8 @@
247
247
 			break;
248
248
 		}
249
249
 		if (rc == 0) {
250
-			pslot = hotplug_slot->private;
251
-			if (pslot)
252
-				rc = ibmphp_hpc_writeslot(pslot, cmd);
253
-			else
254
-				rc = -ENODEV;
250
+			pslot = to_slot(hotplug_slot);
251
+			rc = ibmphp_hpc_writeslot(pslot, cmd);
255
252
 		}
256
253
 	} else
257
254
 		rc = -ENODEV;
..
..
@@ -273,19 +270,15 @@
273
270
 
274
271
 	ibmphp_lock_operations();
275
272
 	if (hotplug_slot) {
276
-		pslot = hotplug_slot->private;
277
-		if (pslot) {
278
-			memcpy(&myslot, pslot, sizeof(struct slot));
279
-			rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
280
-						&(myslot.status));
281
-			if (!rc)
282
-				rc = ibmphp_hpc_readslot(pslot,
283
-						READ_EXTSLOTSTATUS,
284
-						&(myslot.ext_status));
285
-			if (!rc)
286
-				*value = SLOT_ATTN(myslot.status,
287
-						myslot.ext_status);
288
-		}
273
+		pslot = to_slot(hotplug_slot);
274
+		memcpy(&myslot, pslot, sizeof(struct slot));
275
+		rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
276
+					 &myslot.status);
277
+		if (!rc)
278
+			rc = ibmphp_hpc_readslot(pslot, READ_EXTSLOTSTATUS,
279
+						 &myslot.ext_status);
280
+		if (!rc)
281
+			*value = SLOT_ATTN(myslot.status, myslot.ext_status);
289
282
 	}
290
283
 
291
284
 	ibmphp_unlock_operations();
..
..
@@ -303,14 +296,12 @@
303
296
 					(ulong) hotplug_slot, (ulong) value);
304
297
 	ibmphp_lock_operations();
305
298
 	if (hotplug_slot) {
306
-		pslot = hotplug_slot->private;
307
-		if (pslot) {
308
-			memcpy(&myslot, pslot, sizeof(struct slot));
309
-			rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
310
-						&(myslot.status));
311
-			if (!rc)
312
-				*value = SLOT_LATCH(myslot.status);
313
-		}
299
+		pslot = to_slot(hotplug_slot);
300
+		memcpy(&myslot, pslot, sizeof(struct slot));
301
+		rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
302
+					 &myslot.status);
303
+		if (!rc)
304
+			*value = SLOT_LATCH(myslot.status);
314
305
 	}
315
306
 
316
307
 	ibmphp_unlock_operations();
..
..
@@ -330,14 +321,12 @@
330
321
 					(ulong) hotplug_slot, (ulong) value);
331
322
 	ibmphp_lock_operations();
332
323
 	if (hotplug_slot) {
333
-		pslot = hotplug_slot->private;
334
-		if (pslot) {
335
-			memcpy(&myslot, pslot, sizeof(struct slot));
336
-			rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
337
-						&(myslot.status));
338
-			if (!rc)
339
-				*value = SLOT_PWRGD(myslot.status);
340
-		}
324
+		pslot = to_slot(hotplug_slot);
325
+		memcpy(&myslot, pslot, sizeof(struct slot));
326
+		rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
327
+					 &myslot.status);
328
+		if (!rc)
329
+			*value = SLOT_PWRGD(myslot.status);
341
330
 	}
342
331
 
343
332
 	ibmphp_unlock_operations();
..
..
@@ -357,18 +346,16 @@
357
346
 					(ulong) hotplug_slot, (ulong) value);
358
347
 	ibmphp_lock_operations();
359
348
 	if (hotplug_slot) {
360
-		pslot = hotplug_slot->private;
361
-		if (pslot) {
362
-			memcpy(&myslot, pslot, sizeof(struct slot));
363
-			rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
364
-						&(myslot.status));
365
-			if (!rc) {
366
-				present = SLOT_PRESENT(myslot.status);
367
-				if (present == HPC_SLOT_EMPTY)
368
-					*value = 0;
369
-				else
370
-					*value = 1;
371
-			}
349
+		pslot = to_slot(hotplug_slot);
350
+		memcpy(&myslot, pslot, sizeof(struct slot));
351
+		rc = ibmphp_hpc_readslot(pslot, READ_SLOTSTATUS,
352
+					 &myslot.status);
353
+		if (!rc) {
354
+			present = SLOT_PRESENT(myslot.status);
355
+			if (present == HPC_SLOT_EMPTY)
356
+				*value = 0;
357
+			else
358
+				*value = 1;
372
359
 		}
373
360
 	}
374
361
 
..
..
@@ -382,7 +369,7 @@
382
369
 	int rc = 0;
383
370
 	u8 mode = 0;
384
371
 	enum pci_bus_speed speed;
385
-	struct pci_bus *bus = slot->hotplug_slot->pci_slot->bus;
372
+	struct pci_bus *bus = slot->hotplug_slot.pci_slot->bus;
386
373
 
387
374
 	debug("%s - Entry slot[%p]\n", __func__, slot);
388
375
 
..
..
@@ -582,28 +569,9 @@
582
569
  ****************************************************************************/
583
570
 int ibmphp_update_slot_info(struct slot *slot_cur)
584
571
 {
585
-	struct hotplug_slot_info *info;
586
-	struct pci_bus *bus = slot_cur->hotplug_slot->pci_slot->bus;
587
-	int rc;
572
+	struct pci_bus *bus = slot_cur->hotplug_slot.pci_slot->bus;
588
573
 	u8 bus_speed;
589
574
 	u8 mode;
590
-
591
-	info = kmalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL);
592
-	if (!info)
593
-		return -ENOMEM;
594
-
595
-	info->power_status = SLOT_PWRGD(slot_cur->status);
596
-	info->attention_status = SLOT_ATTN(slot_cur->status,
597
-						slot_cur->ext_status);
598
-	info->latch_status = SLOT_LATCH(slot_cur->status);
599
-	if (!SLOT_PRESENT(slot_cur->status)) {
600
-		info->adapter_status = 0;
601
-/*		info->max_adapter_speed_status = MAX_ADAPTER_NONE; */
602
-	} else {
603
-		info->adapter_status = 1;
604
-/*		get_max_adapter_speed_1(slot_cur->hotplug_slot,
605
-					&info->max_adapter_speed_status, 0); */
606
-	}
607
575
 
608
576
 	bus_speed = slot_cur->bus_on->current_speed;
609
577
 	mode = slot_cur->bus_on->current_bus_mode;
..
..
@@ -630,9 +598,7 @@
630
598
 	bus->cur_bus_speed = bus_speed;
631
599
 	// To do: bus_names
632
600
 
633
-	rc = pci_hp_change_slot_info(slot_cur->hotplug_slot, info);
634
-	kfree(info);
635
-	return rc;
601
+	return 0;
636
602
 }
637
603
 
638
604
 
..
..
@@ -673,7 +639,7 @@
673
639
 
674
640
 	list_for_each_entry_safe(slot_cur, next, &ibmphp_slot_head,
675
641
 				 ibm_slot_list) {
676
-		pci_hp_del(slot_cur->hotplug_slot);
642
+		pci_hp_del(&slot_cur->hotplug_slot);
677
643
 		slot_cur->ctrl = NULL;
678
644
 		slot_cur->bus_on = NULL;
679
645
 
..
..
@@ -683,9 +649,7 @@
683
649
 		 */
684
650
 		ibmphp_unconfigure_card(&slot_cur, -1);
685
651
 
686
-		pci_hp_destroy(slot_cur->hotplug_slot);
687
-		kfree(slot_cur->hotplug_slot->info);
688
-		kfree(slot_cur->hotplug_slot);
652
+		pci_hp_destroy(&slot_cur->hotplug_slot);
689
653
 		kfree(slot_cur);
690
654
 	}
691
655
 	debug("%s -- exit\n", __func__);
..
..
@@ -1007,7 +971,7 @@
1007
971
 	ibmphp_lock_operations();
1008
972
 
1009
973
 	debug("ENABLING SLOT........\n");
1010
-	slot_cur = hs->private;
974
+	slot_cur = to_slot(hs);
1011
975
 
1012
976
 	rc = validate(slot_cur, ENABLE);
1013
977
 	if (rc) {
..
..
@@ -1095,8 +1059,7 @@
1095
1059
 
1096
1060
 	slot_cur->func = kzalloc(sizeof(struct pci_func), GFP_KERNEL);
1097
1061
 	if (!slot_cur->func) {
1098
-		/* We cannot do update_slot_info here, since no memory for
1099
-		 * kmalloc n.e.ways, and update_slot_info allocates some */
1062
+		/* do update_slot_info here? */
1100
1063
 		rc = -ENOMEM;
1101
1064
 		goto error_power;
1102
1065
 	}
..
..
@@ -1169,7 +1132,7 @@
1169
1132
 **************************************************************/
1170
1133
 static int ibmphp_disable_slot(struct hotplug_slot *hotplug_slot)
1171
1134
 {
1172
-	struct slot *slot = hotplug_slot->private;
1135
+	struct slot *slot = to_slot(hotplug_slot);
1173
1136
 	int rc;
1174
1137
 
1175
1138
 	ibmphp_lock_operations();
..
..
@@ -1259,7 +1222,7 @@
1259
1222
 	goto exit;
1260
1223
 }
1261
1224
 
1262
-struct hotplug_slot_ops ibmphp_hotplug_slot_ops = {
1225
+const struct hotplug_slot_ops ibmphp_hotplug_slot_ops = {
1263
1226
 	.set_attention_status =		set_attention_status,
1264
1227
 	.enable_slot =			enable_slot,
1265
1228
 	.disable_slot =			ibmphp_disable_slot,
..
..
@@ -1313,8 +1276,6 @@
1313
1276
 	memcpy(ibmphp_pci_bus, bus, sizeof(*ibmphp_pci_bus));
1314
1277
 
1315
1278
 	ibmphp_debug = debug;
1316
-
1317
-	ibmphp_hpc_initvars();
1318
1279
 
1319
1280
 	for (i = 0; i < 16; i++)
1320
1281
 		irqs[i] = 0;