1/*
2 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2007.
3 *
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
9 *
10 *  This program is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 *  General Public License for more details.
14 *
15 *  You should have received a copy of the GNU General Public License
16 *  along with this program; if not, write to the Free Software
17 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
18 *                                                                   USA
19 */
20
21#include "dtc.h"
22
23#ifdef TRACE_CHECKS
24#define TRACE(c, ...) \
25	do { \
26		fprintf(stderr, "=== %s: ", (c)->name); \
27		fprintf(stderr, __VA_ARGS__); \
28		fprintf(stderr, "\n"); \
29	} while (0)
30#else
31#define TRACE(c, fmt, ...)	do { } while (0)
32#endif
33
34enum checkstatus {
35	UNCHECKED = 0,
36	PREREQ,
37	PASSED,
38	FAILED,
39};
40
41struct check;
42
43typedef void (*tree_check_fn)(struct check *c, struct node *dt);
44typedef void (*node_check_fn)(struct check *c, struct node *dt, struct node *node);
45typedef void (*prop_check_fn)(struct check *c, struct node *dt,
46			      struct node *node, struct property *prop);
47
48struct check {
49	const char *name;
50	tree_check_fn tree_fn;
51	node_check_fn node_fn;
52	prop_check_fn prop_fn;
53	void *data;
54	bool warn, error;
55	enum checkstatus status;
56	int inprogress;
57	int num_prereqs;
58	struct check **prereq;
59};
60
61#define CHECK_ENTRY(nm, tfn, nfn, pfn, d, w, e, ...)	       \
62	static struct check *nm##_prereqs[] = { __VA_ARGS__ }; \
63	static struct check nm = { \
64		.name = #nm, \
65		.tree_fn = (tfn), \
66		.node_fn = (nfn), \
67		.prop_fn = (pfn), \
68		.data = (d), \
69		.warn = (w), \
70		.error = (e), \
71		.status = UNCHECKED, \
72		.num_prereqs = ARRAY_SIZE(nm##_prereqs), \
73		.prereq = nm##_prereqs, \
74	};
75#define WARNING(nm, tfn, nfn, pfn, d, ...) \
76	CHECK_ENTRY(nm, tfn, nfn, pfn, d, true, false, __VA_ARGS__)
77#define ERROR(nm, tfn, nfn, pfn, d, ...) \
78	CHECK_ENTRY(nm, tfn, nfn, pfn, d, false, true, __VA_ARGS__)
79#define CHECK(nm, tfn, nfn, pfn, d, ...) \
80	CHECK_ENTRY(nm, tfn, nfn, pfn, d, false, false, __VA_ARGS__)
81
82#define TREE_WARNING(nm, d, ...) \
83	WARNING(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
84#define TREE_ERROR(nm, d, ...) \
85	ERROR(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
86#define TREE_CHECK(nm, d, ...) \
87	CHECK(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
88#define NODE_WARNING(nm, d, ...) \
89	WARNING(nm, NULL, check_##nm, NULL, d,  __VA_ARGS__)
90#define NODE_ERROR(nm, d, ...) \
91	ERROR(nm, NULL, check_##nm, NULL, d, __VA_ARGS__)
92#define NODE_CHECK(nm, d, ...) \
93	CHECK(nm, NULL, check_##nm, NULL, d, __VA_ARGS__)
94#define PROP_WARNING(nm, d, ...) \
95	WARNING(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
96#define PROP_ERROR(nm, d, ...) \
97	ERROR(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
98#define PROP_CHECK(nm, d, ...) \
99	CHECK(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
100
101#ifdef __GNUC__
102static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
103#endif
104static inline void check_msg(struct check *c, const char *fmt, ...)
105{
106	va_list ap;
107	va_start(ap, fmt);
108
109	if ((c->warn && (quiet < 1))
110	    || (c->error && (quiet < 2))) {
111		fprintf(stderr, "%s (%s): ",
112			(c->error) ? "ERROR" : "Warning", c->name);
113		vfprintf(stderr, fmt, ap);
114		fprintf(stderr, "\n");
115	}
116}
117
118#define FAIL(c, ...) \
119	do { \
120		TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \
121		(c)->status = FAILED; \
122		check_msg((c), __VA_ARGS__); \
123	} while (0)
124
125static void check_nodes_props(struct check *c, struct node *dt, struct node *node)
126{
127	struct node *child;
128	struct property *prop;
129
130	TRACE(c, "%s", node->fullpath);
131	if (c->node_fn)
132		c->node_fn(c, dt, node);
133
134	if (c->prop_fn)
135		for_each_property(node, prop) {
136			TRACE(c, "%s\t'%s'", node->fullpath, prop->name);
137			c->prop_fn(c, dt, node, prop);
138		}
139
140	for_each_child(node, child)
141		check_nodes_props(c, dt, child);
142}
143
144static int run_check(struct check *c, struct node *dt)
145{
146	int error = 0;
147	int i;
148
149	assert(!c->inprogress);
150
151	if (c->status != UNCHECKED)
152		goto out;
153
154	c->inprogress = 1;
155
156	for (i = 0; i < c->num_prereqs; i++) {
157		struct check *prq = c->prereq[i];
158		error |= run_check(prq, dt);
159		if (prq->status != PASSED) {
160			c->status = PREREQ;
161			check_msg(c, "Failed prerequisite '%s'",
162				  c->prereq[i]->name);
163		}
164	}
165
166	if (c->status != UNCHECKED)
167		goto out;
168
169	if (c->node_fn || c->prop_fn)
170		check_nodes_props(c, dt, dt);
171
172	if (c->tree_fn)
173		c->tree_fn(c, dt);
174	if (c->status == UNCHECKED)
175		c->status = PASSED;
176
177	TRACE(c, "\tCompleted, status %d", c->status);
178
179out:
180	c->inprogress = 0;
181	if ((c->status != PASSED) && (c->error))
182		error = 1;
183	return error;
184}
185
186/*
187 * Utility check functions
188 */
189
190/* A check which always fails, for testing purposes only */
191static inline void check_always_fail(struct check *c, struct node *dt)
192{
193	FAIL(c, "always_fail check");
194}
195TREE_CHECK(always_fail, NULL);
196
197static void check_is_string(struct check *c, struct node *root,
198			    struct node *node)
199{
200	struct property *prop;
201	char *propname = c->data;
202
203	prop = get_property(node, propname);
204	if (!prop)
205		return; /* Not present, assumed ok */
206
207	if (!data_is_one_string(prop->val))
208		FAIL(c, "\"%s\" property in %s is not a string",
209		     propname, node->fullpath);
210}
211#define WARNING_IF_NOT_STRING(nm, propname) \
212	WARNING(nm, NULL, check_is_string, NULL, (propname))
213#define ERROR_IF_NOT_STRING(nm, propname) \
214	ERROR(nm, NULL, check_is_string, NULL, (propname))
215
216static void check_is_cell(struct check *c, struct node *root,
217			  struct node *node)
218{
219	struct property *prop;
220	char *propname = c->data;
221
222	prop = get_property(node, propname);
223	if (!prop)
224		return; /* Not present, assumed ok */
225
226	if (prop->val.len != sizeof(cell_t))
227		FAIL(c, "\"%s\" property in %s is not a single cell",
228		     propname, node->fullpath);
229}
230#define WARNING_IF_NOT_CELL(nm, propname) \
231	WARNING(nm, NULL, check_is_cell, NULL, (propname))
232#define ERROR_IF_NOT_CELL(nm, propname) \
233	ERROR(nm, NULL, check_is_cell, NULL, (propname))
234
235/*
236 * Structural check functions
237 */
238
239static void check_duplicate_node_names(struct check *c, struct node *dt,
240				       struct node *node)
241{
242	struct node *child, *child2;
243
244	for_each_child(node, child)
245		for (child2 = child->next_sibling;
246		     child2;
247		     child2 = child2->next_sibling)
248			if (streq(child->name, child2->name))
249				FAIL(c, "Duplicate node name %s",
250				     child->fullpath);
251}
252NODE_ERROR(duplicate_node_names, NULL);
253
254static void check_duplicate_property_names(struct check *c, struct node *dt,
255					   struct node *node)
256{
257	struct property *prop, *prop2;
258
259	for_each_property(node, prop) {
260		for (prop2 = prop->next; prop2; prop2 = prop2->next) {
261			if (prop2->deleted)
262				continue;
263			if (streq(prop->name, prop2->name))
264				FAIL(c, "Duplicate property name %s in %s",
265				     prop->name, node->fullpath);
266		}
267	}
268}
269NODE_ERROR(duplicate_property_names, NULL);
270
271#define LOWERCASE	"abcdefghijklmnopqrstuvwxyz"
272#define UPPERCASE	"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
273#define DIGITS		"0123456789"
274#define PROPNODECHARS	LOWERCASE UPPERCASE DIGITS ",._+*#?-"
275
276static void check_node_name_chars(struct check *c, struct node *dt,
277				  struct node *node)
278{
279	int n = strspn(node->name, c->data);
280
281	if (n < strlen(node->name))
282		FAIL(c, "Bad character '%c' in node %s",
283		     node->name[n], node->fullpath);
284}
285NODE_ERROR(node_name_chars, PROPNODECHARS "@");
286
287static void check_node_name_format(struct check *c, struct node *dt,
288				   struct node *node)
289{
290	if (strchr(get_unitname(node), '@'))
291		FAIL(c, "Node %s has multiple '@' characters in name",
292		     node->fullpath);
293}
294NODE_ERROR(node_name_format, NULL, &node_name_chars);
295
296static void check_property_name_chars(struct check *c, struct node *dt,
297				      struct node *node, struct property *prop)
298{
299	int n = strspn(prop->name, c->data);
300
301	if (n < strlen(prop->name))
302		FAIL(c, "Bad character '%c' in property name \"%s\", node %s",
303		     prop->name[n], prop->name, node->fullpath);
304}
305PROP_ERROR(property_name_chars, PROPNODECHARS);
306
307#define DESCLABEL_FMT	"%s%s%s%s%s"
308#define DESCLABEL_ARGS(node,prop,mark)		\
309	((mark) ? "value of " : ""),		\
310	((prop) ? "'" : ""), \
311	((prop) ? (prop)->name : ""), \
312	((prop) ? "' in " : ""), (node)->fullpath
313
314static void check_duplicate_label(struct check *c, struct node *dt,
315				  const char *label, struct node *node,
316				  struct property *prop, struct marker *mark)
317{
318	struct node *othernode = NULL;
319	struct property *otherprop = NULL;
320	struct marker *othermark = NULL;
321
322	othernode = get_node_by_label(dt, label);
323
324	if (!othernode)
325		otherprop = get_property_by_label(dt, label, &othernode);
326	if (!othernode)
327		othermark = get_marker_label(dt, label, &othernode,
328					       &otherprop);
329
330	if (!othernode)
331		return;
332
333	if ((othernode != node) || (otherprop != prop) || (othermark != mark))
334		FAIL(c, "Duplicate label '%s' on " DESCLABEL_FMT
335		     " and " DESCLABEL_FMT,
336		     label, DESCLABEL_ARGS(node, prop, mark),
337		     DESCLABEL_ARGS(othernode, otherprop, othermark));
338}
339
340static void check_duplicate_label_node(struct check *c, struct node *dt,
341				       struct node *node)
342{
343	struct label *l;
344
345	for_each_label(node->labels, l)
346		check_duplicate_label(c, dt, l->label, node, NULL, NULL);
347}
348static void check_duplicate_label_prop(struct check *c, struct node *dt,
349				       struct node *node, struct property *prop)
350{
351	struct marker *m = prop->val.markers;
352	struct label *l;
353
354	for_each_label(prop->labels, l)
355		check_duplicate_label(c, dt, l->label, node, prop, NULL);
356
357	for_each_marker_of_type(m, LABEL)
358		check_duplicate_label(c, dt, m->ref, node, prop, m);
359}
360ERROR(duplicate_label, NULL, check_duplicate_label_node,
361      check_duplicate_label_prop, NULL);
362
363static void check_explicit_phandles(struct check *c, struct node *root,
364				    struct node *node, struct property *prop)
365{
366	struct marker *m;
367	struct node *other;
368	cell_t phandle;
369
370	if (!streq(prop->name, "phandle")
371	    && !streq(prop->name, "linux,phandle"))
372		return;
373
374	if (prop->val.len != sizeof(cell_t)) {
375		FAIL(c, "%s has bad length (%d) %s property",
376		     node->fullpath, prop->val.len, prop->name);
377		return;
378	}
379
380	m = prop->val.markers;
381	for_each_marker_of_type(m, REF_PHANDLE) {
382		assert(m->offset == 0);
383		if (node != get_node_by_ref(root, m->ref))
384			/* "Set this node's phandle equal to some
385			 * other node's phandle".  That's nonsensical
386			 * by construction. */ {
387			FAIL(c, "%s in %s is a reference to another node",
388			     prop->name, node->fullpath);
389			return;
390		}
391		/* But setting this node's phandle equal to its own
392		 * phandle is allowed - that means allocate a unique
393		 * phandle for this node, even if it's not otherwise
394		 * referenced.  The value will be filled in later, so
395		 * no further checking for now. */
396		return;
397	}
398
399	phandle = propval_cell(prop);
400
401	if ((phandle == 0) || (phandle == -1)) {
402		FAIL(c, "%s has bad value (0x%x) in %s property",
403		     node->fullpath, phandle, prop->name);
404		return;
405	}
406
407	if (node->phandle && (node->phandle != phandle))
408		FAIL(c, "%s has %s property which replaces existing phandle information",
409		     node->fullpath, prop->name);
410
411	other = get_node_by_phandle(root, phandle);
412	if (other && (other != node)) {
413		FAIL(c, "%s has duplicated phandle 0x%x (seen before at %s)",
414		     node->fullpath, phandle, other->fullpath);
415		return;
416	}
417
418	node->phandle = phandle;
419}
420PROP_ERROR(explicit_phandles, NULL);
421
422static void check_name_properties(struct check *c, struct node *root,
423				  struct node *node)
424{
425	struct property **pp, *prop = NULL;
426
427	for (pp = &node->proplist; *pp; pp = &((*pp)->next))
428		if (streq((*pp)->name, "name")) {
429			prop = *pp;
430			break;
431		}
432
433	if (!prop)
434		return; /* No name property, that's fine */
435
436	if ((prop->val.len != node->basenamelen+1)
437	    || (memcmp(prop->val.val, node->name, node->basenamelen) != 0)) {
438		FAIL(c, "\"name\" property in %s is incorrect (\"%s\" instead"
439		     " of base node name)", node->fullpath, prop->val.val);
440	} else {
441		/* The name property is correct, and therefore redundant.
442		 * Delete it */
443		*pp = prop->next;
444		free(prop->name);
445		data_free(prop->val);
446		free(prop);
447	}
448}
449ERROR_IF_NOT_STRING(name_is_string, "name");
450NODE_ERROR(name_properties, NULL, &name_is_string);
451
452/*
453 * Reference fixup functions
454 */
455
456static void fixup_phandle_references(struct check *c, struct node *dt,
457				     struct node *node, struct property *prop)
458{
459	struct marker *m = prop->val.markers;
460	struct node *refnode;
461	cell_t phandle;
462
463	for_each_marker_of_type(m, REF_PHANDLE) {
464		assert(m->offset + sizeof(cell_t) <= prop->val.len);
465
466		refnode = get_node_by_ref(dt, m->ref);
467		if (! refnode) {
468			FAIL(c, "Reference to non-existent node or label \"%s\"\n",
469			     m->ref);
470			continue;
471		}
472
473		phandle = get_node_phandle(dt, refnode);
474		*((cell_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle);
475	}
476}
477ERROR(phandle_references, NULL, NULL, fixup_phandle_references, NULL,
478      &duplicate_node_names, &explicit_phandles);
479
480static void fixup_path_references(struct check *c, struct node *dt,
481				  struct node *node, struct property *prop)
482{
483	struct marker *m = prop->val.markers;
484	struct node *refnode;
485	char *path;
486
487	for_each_marker_of_type(m, REF_PATH) {
488		assert(m->offset <= prop->val.len);
489
490		refnode = get_node_by_ref(dt, m->ref);
491		if (!refnode) {
492			FAIL(c, "Reference to non-existent node or label \"%s\"\n",
493			     m->ref);
494			continue;
495		}
496
497		path = refnode->fullpath;
498		prop->val = data_insert_at_marker(prop->val, m, path,
499						  strlen(path) + 1);
500	}
501}
502ERROR(path_references, NULL, NULL, fixup_path_references, NULL,
503      &duplicate_node_names);
504
505/*
506 * Semantic checks
507 */
508WARNING_IF_NOT_CELL(address_cells_is_cell, "#address-cells");
509WARNING_IF_NOT_CELL(size_cells_is_cell, "#size-cells");
510WARNING_IF_NOT_CELL(interrupt_cells_is_cell, "#interrupt-cells");
511
512WARNING_IF_NOT_STRING(device_type_is_string, "device_type");
513WARNING_IF_NOT_STRING(model_is_string, "model");
514WARNING_IF_NOT_STRING(status_is_string, "status");
515
516static void fixup_addr_size_cells(struct check *c, struct node *dt,
517				  struct node *node)
518{
519	struct property *prop;
520
521	node->addr_cells = -1;
522	node->size_cells = -1;
523
524	prop = get_property(node, "#address-cells");
525	if (prop)
526		node->addr_cells = propval_cell(prop);
527
528	prop = get_property(node, "#size-cells");
529	if (prop)
530		node->size_cells = propval_cell(prop);
531}
532WARNING(addr_size_cells, NULL, fixup_addr_size_cells, NULL, NULL,
533	&address_cells_is_cell, &size_cells_is_cell);
534
535#define node_addr_cells(n) \
536	(((n)->addr_cells == -1) ? 2 : (n)->addr_cells)
537#define node_size_cells(n) \
538	(((n)->size_cells == -1) ? 1 : (n)->size_cells)
539
540static void check_reg_format(struct check *c, struct node *dt,
541			     struct node *node)
542{
543	struct property *prop;
544	int addr_cells, size_cells, entrylen;
545
546	prop = get_property(node, "reg");
547	if (!prop)
548		return; /* No "reg", that's fine */
549
550	if (!node->parent) {
551		FAIL(c, "Root node has a \"reg\" property");
552		return;
553	}
554
555	if (prop->val.len == 0)
556		FAIL(c, "\"reg\" property in %s is empty", node->fullpath);
557
558	addr_cells = node_addr_cells(node->parent);
559	size_cells = node_size_cells(node->parent);
560	entrylen = (addr_cells + size_cells) * sizeof(cell_t);
561
562	if ((prop->val.len % entrylen) != 0)
563		FAIL(c, "\"reg\" property in %s has invalid length (%d bytes) "
564		     "(#address-cells == %d, #size-cells == %d)",
565		     node->fullpath, prop->val.len, addr_cells, size_cells);
566}
567NODE_WARNING(reg_format, NULL, &addr_size_cells);
568
569static void check_ranges_format(struct check *c, struct node *dt,
570				struct node *node)
571{
572	struct property *prop;
573	int c_addr_cells, p_addr_cells, c_size_cells, p_size_cells, entrylen;
574
575	prop = get_property(node, "ranges");
576	if (!prop)
577		return;
578
579	if (!node->parent) {
580		FAIL(c, "Root node has a \"ranges\" property");
581		return;
582	}
583
584	p_addr_cells = node_addr_cells(node->parent);
585	p_size_cells = node_size_cells(node->parent);
586	c_addr_cells = node_addr_cells(node);
587	c_size_cells = node_size_cells(node);
588	entrylen = (p_addr_cells + c_addr_cells + c_size_cells) * sizeof(cell_t);
589
590	if (prop->val.len == 0) {
591		if (p_addr_cells != c_addr_cells)
592			FAIL(c, "%s has empty \"ranges\" property but its "
593			     "#address-cells (%d) differs from %s (%d)",
594			     node->fullpath, c_addr_cells, node->parent->fullpath,
595			     p_addr_cells);
596		if (p_size_cells != c_size_cells)
597			FAIL(c, "%s has empty \"ranges\" property but its "
598			     "#size-cells (%d) differs from %s (%d)",
599			     node->fullpath, c_size_cells, node->parent->fullpath,
600			     p_size_cells);
601	} else if ((prop->val.len % entrylen) != 0) {
602		FAIL(c, "\"ranges\" property in %s has invalid length (%d bytes) "
603		     "(parent #address-cells == %d, child #address-cells == %d, "
604		     "#size-cells == %d)", node->fullpath, prop->val.len,
605		     p_addr_cells, c_addr_cells, c_size_cells);
606	}
607}
608NODE_WARNING(ranges_format, NULL, &addr_size_cells);
609
610/*
611 * Style checks
612 */
613static void check_avoid_default_addr_size(struct check *c, struct node *dt,
614					  struct node *node)
615{
616	struct property *reg, *ranges;
617
618	if (!node->parent)
619		return; /* Ignore root node */
620
621	reg = get_property(node, "reg");
622	ranges = get_property(node, "ranges");
623
624	if (!reg && !ranges)
625		return;
626
627	if ((node->parent->addr_cells == -1))
628		FAIL(c, "Relying on default #address-cells value for %s",
629		     node->fullpath);
630
631	if ((node->parent->size_cells == -1))
632		FAIL(c, "Relying on default #size-cells value for %s",
633		     node->fullpath);
634}
635NODE_WARNING(avoid_default_addr_size, NULL, &addr_size_cells);
636
637static void check_obsolete_chosen_interrupt_controller(struct check *c,
638						       struct node *dt)
639{
640	struct node *chosen;
641	struct property *prop;
642
643	chosen = get_node_by_path(dt, "/chosen");
644	if (!chosen)
645		return;
646
647	prop = get_property(chosen, "interrupt-controller");
648	if (prop)
649		FAIL(c, "/chosen has obsolete \"interrupt-controller\" "
650		     "property");
651}
652TREE_WARNING(obsolete_chosen_interrupt_controller, NULL);
653
654static struct check *check_table[] = {
655	&duplicate_node_names, &duplicate_property_names,
656	&node_name_chars, &node_name_format, &property_name_chars,
657	&name_is_string, &name_properties,
658
659	&duplicate_label,
660
661	&explicit_phandles,
662	&phandle_references, &path_references,
663
664	&address_cells_is_cell, &size_cells_is_cell, &interrupt_cells_is_cell,
665	&device_type_is_string, &model_is_string, &status_is_string,
666
667	&addr_size_cells, &reg_format, &ranges_format,
668
669	&avoid_default_addr_size,
670	&obsolete_chosen_interrupt_controller,
671
672	&always_fail,
673};
674
675static void enable_warning_error(struct check *c, bool warn, bool error)
676{
677	int i;
678
679	/* Raising level, also raise it for prereqs */
680	if ((warn && !c->warn) || (error && !c->error))
681		for (i = 0; i < c->num_prereqs; i++)
682			enable_warning_error(c->prereq[i], warn, error);
683
684	c->warn = c->warn || warn;
685	c->error = c->error || error;
686}
687
688static void disable_warning_error(struct check *c, bool warn, bool error)
689{
690	int i;
691
692	/* Lowering level, also lower it for things this is the prereq
693	 * for */
694	if ((warn && c->warn) || (error && c->error)) {
695		for (i = 0; i < ARRAY_SIZE(check_table); i++) {
696			struct check *cc = check_table[i];
697			int j;
698
699			for (j = 0; j < cc->num_prereqs; j++)
700				if (cc->prereq[j] == c)
701					disable_warning_error(cc, warn, error);
702		}
703	}
704
705	c->warn = c->warn && !warn;
706	c->error = c->error && !error;
707}
708
709void parse_checks_option(bool warn, bool error, const char *optarg)
710{
711	int i;
712	const char *name = optarg;
713	bool enable = true;
714
715	if ((strncmp(optarg, "no-", 3) == 0)
716	    || (strncmp(optarg, "no_", 3) == 0)) {
717		name = optarg + 3;
718		enable = false;
719	}
720
721	for (i = 0; i < ARRAY_SIZE(check_table); i++) {
722		struct check *c = check_table[i];
723
724		if (streq(c->name, name)) {
725			if (enable)
726				enable_warning_error(c, warn, error);
727			else
728				disable_warning_error(c, warn, error);
729			return;
730		}
731	}
732
733	die("Unrecognized check name \"%s\"\n", name);
734}
735
736void process_checks(int force, struct boot_info *bi)
737{
738	struct node *dt = bi->dt;
739	int i;
740	int error = 0;
741
742	for (i = 0; i < ARRAY_SIZE(check_table); i++) {
743		struct check *c = check_table[i];
744
745		if (c->warn || c->error)
746			error = error || run_check(c, dt);
747	}
748
749	if (error) {
750		if (!force) {
751			fprintf(stderr, "ERROR: Input tree has errors, aborting "
752				"(use -f to force output)\n");
753			exit(2);
754		} else if (quiet < 3) {
755			fprintf(stderr, "Warning: Input tree has errors, "
756				"output forced\n");
757		}
758	}
759}
760