scripts/dtc/checks.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
check_msg
check_nodes_props
run_check
check_always_fail
check_is_string
check_is_cell
check_duplicate_node_names
check_duplicate_property_names
check_node_name_chars
check_node_name_format
check_property_name_chars
check_duplicate_label
check_duplicate_label_node
check_duplicate_label_prop
check_explicit_phandles
check_name_properties
fixup_phandle_references
fixup_path_references
fixup_addr_size_cells
check_reg_format
check_ranges_format
check_avoid_default_addr_size
check_obsolete_chosen_interrupt_controller
enable_warning_error
disable_warning_error
parse_checks_option
process_checks
/*
 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2007.
 *
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *                                                                   USA
 */

#include "dtc.h"

#ifdef TRACE_CHECKS
#define TRACE(c, ...) \
        do { \
                fprintf(stderr, "=== %s: ", (c)->name); \
                fprintf(stderr, __VA_ARGS__); \
                fprintf(stderr, "\n"); \
        } while (0)
#else
#define TRACE(c, fmt, ...)      do { } while (0)
#endif

enum checkstatus {
        UNCHECKED = 0,
        PREREQ,
        PASSED,
        FAILED,
};

struct check;

typedef void (*tree_check_fn)(struct check *c, struct node *dt);
typedef void (*node_check_fn)(struct check *c, struct node *dt, struct node *node);
typedef void (*prop_check_fn)(struct check *c, struct node *dt,
                              struct node *node, struct property *prop);

struct check {
        const char *name;
        tree_check_fn tree_fn;
        node_check_fn node_fn;
        prop_check_fn prop_fn;
        void *data;
        bool warn, error;
        enum checkstatus status;
        int inprogress;
        int num_prereqs;
        struct check **prereq;
};

#define CHECK_ENTRY(nm, tfn, nfn, pfn, d, w, e, ...)           \
        static struct check *nm##_prereqs[] = { __VA_ARGS__ }; \
        static struct check nm = { \
                .name = #nm, \
                .tree_fn = (tfn), \
                .node_fn = (nfn), \
                .prop_fn = (pfn), \
                .data = (d), \
                .warn = (w), \
                .error = (e), \
                .status = UNCHECKED, \
                .num_prereqs = ARRAY_SIZE(nm##_prereqs), \
                .prereq = nm##_prereqs, \
        };
#define WARNING(nm, tfn, nfn, pfn, d, ...) \
        CHECK_ENTRY(nm, tfn, nfn, pfn, d, true, false, __VA_ARGS__)
#define ERROR(nm, tfn, nfn, pfn, d, ...) \
        CHECK_ENTRY(nm, tfn, nfn, pfn, d, false, true, __VA_ARGS__)
#define CHECK(nm, tfn, nfn, pfn, d, ...) \
        CHECK_ENTRY(nm, tfn, nfn, pfn, d, false, false, __VA_ARGS__)

#define TREE_WARNING(nm, d, ...) \
        WARNING(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
#define TREE_ERROR(nm, d, ...) \
        ERROR(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
#define TREE_CHECK(nm, d, ...) \
        CHECK(nm, check_##nm, NULL, NULL, d, __VA_ARGS__)
#define NODE_WARNING(nm, d, ...) \
        WARNING(nm, NULL, check_##nm, NULL, d,  __VA_ARGS__)
#define NODE_ERROR(nm, d, ...) \
        ERROR(nm, NULL, check_##nm, NULL, d, __VA_ARGS__)
#define NODE_CHECK(nm, d, ...) \
        CHECK(nm, NULL, check_##nm, NULL, d, __VA_ARGS__)
#define PROP_WARNING(nm, d, ...) \
        WARNING(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
#define PROP_ERROR(nm, d, ...) \
        ERROR(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)
#define PROP_CHECK(nm, d, ...) \
        CHECK(nm, NULL, NULL, check_##nm, d, __VA_ARGS__)

#ifdef __GNUC__
static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
#endif
static inline void check_msg(struct check *c, const char *fmt, ...)
{
        va_list ap;
        va_start(ap, fmt);

        if ((c->warn && (quiet < 1))
            || (c->error && (quiet < 2))) {
                fprintf(stderr, "%s (%s): ",
                        (c->error) ? "ERROR" : "Warning", c->name);
                vfprintf(stderr, fmt, ap);
                fprintf(stderr, "\n");
        }
}

#define FAIL(c, ...) \
        do { \
                TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \
                (c)->status = FAILED; \
                check_msg((c), __VA_ARGS__); \
        } while (0)

static void check_nodes_props(struct check *c, struct node *dt, struct node *node)
{
        struct node *child;
        struct property *prop;

        TRACE(c, "%s", node->fullpath);
        if (c->node_fn)
                c->node_fn(c, dt, node);

        if (c->prop_fn)
                for_each_property(node, prop) {
                        TRACE(c, "%s\t'%s'", node->fullpath, prop->name);
                        c->prop_fn(c, dt, node, prop);
                }

        for_each_child(node, child)
                check_nodes_props(c, dt, child);
}

static int run_check(struct check *c, struct node *dt)
{
        int error = 0;
        int i;

        assert(!c->inprogress);

        if (c->status != UNCHECKED)
                goto out;

        c->inprogress = 1;

        for (i = 0; i < c->num_prereqs; i++) {
                struct check *prq = c->prereq[i];
                error |= run_check(prq, dt);
                if (prq->status != PASSED) {
                        c->status = PREREQ;
                        check_msg(c, "Failed prerequisite '%s'",
                                  c->prereq[i]->name);
                }
        }

        if (c->status != UNCHECKED)
                goto out;

        if (c->node_fn || c->prop_fn)
                check_nodes_props(c, dt, dt);

        if (c->tree_fn)
                c->tree_fn(c, dt);
        if (c->status == UNCHECKED)
                c->status = PASSED;

        TRACE(c, "\tCompleted, status %d", c->status);

out:
        c->inprogress = 0;
        if ((c->status != PASSED) && (c->error))
                error = 1;
        return error;
}

/*
 * Utility check functions
 */

/* A check which always fails, for testing purposes only */
static inline void check_always_fail(struct check *c, struct node *dt)
{
        FAIL(c, "always_fail check");
}
TREE_CHECK(always_fail, NULL);

static void check_is_string(struct check *c, struct node *root,
                            struct node *node)
{
        struct property *prop;
        char *propname = c->data;

        prop = get_property(node, propname);
        if (!prop)
                return; /* Not present, assumed ok */

        if (!data_is_one_string(prop->val))
                FAIL(c, "\"%s\" property in %s is not a string",
                     propname, node->fullpath);
}
#define WARNING_IF_NOT_STRING(nm, propname) \
        WARNING(nm, NULL, check_is_string, NULL, (propname))
#define ERROR_IF_NOT_STRING(nm, propname) \
        ERROR(nm, NULL, check_is_string, NULL, (propname))

static void check_is_cell(struct check *c, struct node *root,
                          struct node *node)
{
        struct property *prop;
        char *propname = c->data;

        prop = get_property(node, propname);
        if (!prop)
                return; /* Not present, assumed ok */

        if (prop->val.len != sizeof(cell_t))
                FAIL(c, "\"%s\" property in %s is not a single cell",
                     propname, node->fullpath);
}
#define WARNING_IF_NOT_CELL(nm, propname) \
        WARNING(nm, NULL, check_is_cell, NULL, (propname))
#define ERROR_IF_NOT_CELL(nm, propname) \
        ERROR(nm, NULL, check_is_cell, NULL, (propname))

/*
 * Structural check functions
 */

static void check_duplicate_node_names(struct check *c, struct node *dt,
                                       struct node *node)
{
        struct node *child, *child2;

        for_each_child(node, child)
                for (child2 = child->next_sibling;
                     child2;
                     child2 = child2->next_sibling)
                        if (streq(child->name, child2->name))
                                FAIL(c, "Duplicate node name %s",
                                     child->fullpath);
}
NODE_ERROR(duplicate_node_names, NULL);

static void check_duplicate_property_names(struct check *c, struct node *dt,
                                           struct node *node)
{
        struct property *prop, *prop2;

        for_each_property(node, prop) {
                for (prop2 = prop->next; prop2; prop2 = prop2->next) {
                        if (prop2->deleted)
                                continue;
                        if (streq(prop->name, prop2->name))
                                FAIL(c, "Duplicate property name %s in %s",
                                     prop->name, node->fullpath);
                }
        }
}
NODE_ERROR(duplicate_property_names, NULL);

#define LOWERCASE       "abcdefghijklmnopqrstuvwxyz"
#define UPPERCASE       "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
#define DIGITS          "0123456789"
#define PROPNODECHARS   LOWERCASE UPPERCASE DIGITS ",._+*#?-"

static void check_node_name_chars(struct check *c, struct node *dt,
                                  struct node *node)
{
        int n = strspn(node->name, c->data);

        if (n < strlen(node->name))
                FAIL(c, "Bad character '%c' in node %s",
                     node->name[n], node->fullpath);
}
NODE_ERROR(node_name_chars, PROPNODECHARS "@");

static void check_node_name_format(struct check *c, struct node *dt,
                                   struct node *node)
{
        if (strchr(get_unitname(node), '@'))
                FAIL(c, "Node %s has multiple '@' characters in name",
                     node->fullpath);
}
NODE_ERROR(node_name_format, NULL, &node_name_chars);

static void check_property_name_chars(struct check *c, struct node *dt,
                                      struct node *node, struct property *prop)
{
        int n = strspn(prop->name, c->data);

        if (n < strlen(prop->name))
                FAIL(c, "Bad character '%c' in property name \"%s\", node %s",
                     prop->name[n], prop->name, node->fullpath);
}
PROP_ERROR(property_name_chars, PROPNODECHARS);

#define DESCLABEL_FMT   "%s%s%s%s%s"
#define DESCLABEL_ARGS(node,prop,mark)          \
        ((mark) ? "value of " : ""),            \
        ((prop) ? "'" : ""), \
        ((prop) ? (prop)->name : ""), \
        ((prop) ? "' in " : ""), (node)->fullpath

static void check_duplicate_label(struct check *c, struct node *dt,
                                  const char *label, struct node *node,
                                  struct property *prop, struct marker *mark)
{
        struct node *othernode = NULL;
        struct property *otherprop = NULL;
        struct marker *othermark = NULL;

        othernode = get_node_by_label(dt, label);

        if (!othernode)
                otherprop = get_property_by_label(dt, label, &othernode);
        if (!othernode)
                othermark = get_marker_label(dt, label, &othernode,
                                               &otherprop);

        if (!othernode)
                return;

        if ((othernode != node) || (otherprop != prop) || (othermark != mark))
                FAIL(c, "Duplicate label '%s' on " DESCLABEL_FMT
                     " and " DESCLABEL_FMT,
                     label, DESCLABEL_ARGS(node, prop, mark),
                     DESCLABEL_ARGS(othernode, otherprop, othermark));
}

static void check_duplicate_label_node(struct check *c, struct node *dt,
                                       struct node *node)
{
        struct label *l;

        for_each_label(node->labels, l)
                check_duplicate_label(c, dt, l->label, node, NULL, NULL);
}
static void check_duplicate_label_prop(struct check *c, struct node *dt,
                                       struct node *node, struct property *prop)
{
        struct marker *m = prop->val.markers;
        struct label *l;

        for_each_label(prop->labels, l)
                check_duplicate_label(c, dt, l->label, node, prop, NULL);

        for_each_marker_of_type(m, LABEL)
                check_duplicate_label(c, dt, m->ref, node, prop, m);
}
ERROR(duplicate_label, NULL, check_duplicate_label_node,
      check_duplicate_label_prop, NULL);

static void check_explicit_phandles(struct check *c, struct node *root,
                                    struct node *node, struct property *prop)
{
        struct marker *m;
        struct node *other;
        cell_t phandle;

        if (!streq(prop->name, "phandle")
            && !streq(prop->name, "linux,phandle"))
                return;

        if (prop->val.len != sizeof(cell_t)) {
                FAIL(c, "%s has bad length (%d) %s property",
                     node->fullpath, prop->val.len, prop->name);
                return;
        }

        m = prop->val.markers;
        for_each_marker_of_type(m, REF_PHANDLE) {
                assert(m->offset == 0);
                if (node != get_node_by_ref(root, m->ref))
                        /* "Set this node's phandle equal to some
                         * other node's phandle".  That's nonsensical
                         * by construction. */ {
                        FAIL(c, "%s in %s is a reference to another node",
                             prop->name, node->fullpath);
                        return;
                }
                /* But setting this node's phandle equal to its own
                 * phandle is allowed - that means allocate a unique
                 * phandle for this node, even if it's not otherwise
                 * referenced.  The value will be filled in later, so
                 * no further checking for now. */
                return;
        }

        phandle = propval_cell(prop);

        if ((phandle == 0) || (phandle == -1)) {
                FAIL(c, "%s has bad value (0x%x) in %s property",
                     node->fullpath, phandle, prop->name);
                return;
        }

        if (node->phandle && (node->phandle != phandle))
                FAIL(c, "%s has %s property which replaces existing phandle information",
                     node->fullpath, prop->name);

        other = get_node_by_phandle(root, phandle);
        if (other && (other != node)) {
                FAIL(c, "%s has duplicated phandle 0x%x (seen before at %s)",
                     node->fullpath, phandle, other->fullpath);
                return;
        }

        node->phandle = phandle;
}
PROP_ERROR(explicit_phandles, NULL);

static void check_name_properties(struct check *c, struct node *root,
                                  struct node *node)
{
        struct property **pp, *prop = NULL;

        for (pp = &node->proplist; *pp; pp = &((*pp)->next))
                if (streq((*pp)->name, "name")) {
                        prop = *pp;
                        break;
                }

        if (!prop)
                return; /* No name property, that's fine */

        if ((prop->val.len != node->basenamelen+1)
            || (memcmp(prop->val.val, node->name, node->basenamelen) != 0)) {
                FAIL(c, "\"name\" property in %s is incorrect (\"%s\" instead"
                     " of base node name)", node->fullpath, prop->val.val);
        } else {
                /* The name property is correct, and therefore redundant.
                 * Delete it */
                *pp = prop->next;
                free(prop->name);
                data_free(prop->val);
                free(prop);
        }
}
ERROR_IF_NOT_STRING(name_is_string, "name");
NODE_ERROR(name_properties, NULL, &name_is_string);

/*
 * Reference fixup functions
 */

static void fixup_phandle_references(struct check *c, struct node *dt,
                                     struct node *node, struct property *prop)
{
        struct marker *m = prop->val.markers;
        struct node *refnode;
        cell_t phandle;

        for_each_marker_of_type(m, REF_PHANDLE) {
                assert(m->offset + sizeof(cell_t) <= prop->val.len);

                refnode = get_node_by_ref(dt, m->ref);
                if (! refnode) {
                        FAIL(c, "Reference to non-existent node or label \"%s\"\n",
                             m->ref);
                        continue;
                }

                phandle = get_node_phandle(dt, refnode);
                *((cell_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle);
        }
}
ERROR(phandle_references, NULL, NULL, fixup_phandle_references, NULL,
      &duplicate_node_names, &explicit_phandles);

static void fixup_path_references(struct check *c, struct node *dt,
                                  struct node *node, struct property *prop)
{
        struct marker *m = prop->val.markers;
        struct node *refnode;
        char *path;

        for_each_marker_of_type(m, REF_PATH) {
                assert(m->offset <= prop->val.len);

                refnode = get_node_by_ref(dt, m->ref);
                if (!refnode) {
                        FAIL(c, "Reference to non-existent node or label \"%s\"\n",
                             m->ref);
                        continue;
                }

                path = refnode->fullpath;
                prop->val = data_insert_at_marker(prop->val, m, path,
                                                  strlen(path) + 1);
        }
}
ERROR(path_references, NULL, NULL, fixup_path_references, NULL,
      &duplicate_node_names);

/*
 * Semantic checks
 */
WARNING_IF_NOT_CELL(address_cells_is_cell, "#address-cells");
WARNING_IF_NOT_CELL(size_cells_is_cell, "#size-cells");
WARNING_IF_NOT_CELL(interrupt_cells_is_cell, "#interrupt-cells");

WARNING_IF_NOT_STRING(device_type_is_string, "device_type");
WARNING_IF_NOT_STRING(model_is_string, "model");
WARNING_IF_NOT_STRING(status_is_string, "status");

static void fixup_addr_size_cells(struct check *c, struct node *dt,
                                  struct node *node)
{
        struct property *prop;

        node->addr_cells = -1;
        node->size_cells = -1;

        prop = get_property(node, "#address-cells");
        if (prop)
                node->addr_cells = propval_cell(prop);

        prop = get_property(node, "#size-cells");
        if (prop)
                node->size_cells = propval_cell(prop);
}
WARNING(addr_size_cells, NULL, fixup_addr_size_cells, NULL, NULL,
        &address_cells_is_cell, &size_cells_is_cell);

#define node_addr_cells(n) \
        (((n)->addr_cells == -1) ? 2 : (n)->addr_cells)
#define node_size_cells(n) \
        (((n)->size_cells == -1) ? 1 : (n)->size_cells)

static void check_reg_format(struct check *c, struct node *dt,
                             struct node *node)
{
        struct property *prop;
        int addr_cells, size_cells, entrylen;

        prop = get_property(node, "reg");
        if (!prop)
                return; /* No "reg", that's fine */

        if (!node->parent) {
                FAIL(c, "Root node has a \"reg\" property");
                return;
        }

        if (prop->val.len == 0)
                FAIL(c, "\"reg\" property in %s is empty", node->fullpath);

        addr_cells = node_addr_cells(node->parent);
        size_cells = node_size_cells(node->parent);
        entrylen = (addr_cells + size_cells) * sizeof(cell_t);

        if ((prop->val.len % entrylen) != 0)
                FAIL(c, "\"reg\" property in %s has invalid length (%d bytes) "
                     "(#address-cells == %d, #size-cells == %d)",
                     node->fullpath, prop->val.len, addr_cells, size_cells);
}
NODE_WARNING(reg_format, NULL, &addr_size_cells);

static void check_ranges_format(struct check *c, struct node *dt,
                                struct node *node)
{
        struct property *prop;
        int c_addr_cells, p_addr_cells, c_size_cells, p_size_cells, entrylen;

        prop = get_property(node, "ranges");
        if (!prop)
                return;

        if (!node->parent) {
                FAIL(c, "Root node has a \"ranges\" property");
                return;
        }

        p_addr_cells = node_addr_cells(node->parent);
        p_size_cells = node_size_cells(node->parent);
        c_addr_cells = node_addr_cells(node);
        c_size_cells = node_size_cells(node);
        entrylen = (p_addr_cells + c_addr_cells + c_size_cells) * sizeof(cell_t);

        if (prop->val.len == 0) {
                if (p_addr_cells != c_addr_cells)
                        FAIL(c, "%s has empty \"ranges\" property but its "
                             "#address-cells (%d) differs from %s (%d)",
                             node->fullpath, c_addr_cells, node->parent->fullpath,
                             p_addr_cells);
                if (p_size_cells != c_size_cells)
                        FAIL(c, "%s has empty \"ranges\" property but its "
                             "#size-cells (%d) differs from %s (%d)",
                             node->fullpath, c_size_cells, node->parent->fullpath,
                             p_size_cells);
        } else if ((prop->val.len % entrylen) != 0) {
                FAIL(c, "\"ranges\" property in %s has invalid length (%d bytes) "
                     "(parent #address-cells == %d, child #address-cells == %d, "
                     "#size-cells == %d)", node->fullpath, prop->val.len,
                     p_addr_cells, c_addr_cells, c_size_cells);
        }
}
NODE_WARNING(ranges_format, NULL, &addr_size_cells);

/*
 * Style checks
 */
static void check_avoid_default_addr_size(struct check *c, struct node *dt,
                                          struct node *node)
{
        struct property *reg, *ranges;

        if (!node->parent)
                return; /* Ignore root node */

        reg = get_property(node, "reg");
        ranges = get_property(node, "ranges");

        if (!reg && !ranges)
                return;

        if ((node->parent->addr_cells == -1))
                FAIL(c, "Relying on default #address-cells value for %s",
                     node->fullpath);

        if ((node->parent->size_cells == -1))
                FAIL(c, "Relying on default #size-cells value for %s",
                     node->fullpath);
}
NODE_WARNING(avoid_default_addr_size, NULL, &addr_size_cells);

static void check_obsolete_chosen_interrupt_controller(struct check *c,
                                                       struct node *dt)
{
        struct node *chosen;
        struct property *prop;

        chosen = get_node_by_path(dt, "/chosen");
        if (!chosen)
                return;

        prop = get_property(chosen, "interrupt-controller");
        if (prop)
                FAIL(c, "/chosen has obsolete \"interrupt-controller\" "
                     "property");
}
TREE_WARNING(obsolete_chosen_interrupt_controller, NULL);

static struct check *check_table[] = {
        &duplicate_node_names, &duplicate_property_names,
        &node_name_chars, &node_name_format, &property_name_chars,
        &name_is_string, &name_properties,

        &duplicate_label,

        &explicit_phandles,
        &phandle_references, &path_references,

        &address_cells_is_cell, &size_cells_is_cell, &interrupt_cells_is_cell,
        &device_type_is_string, &model_is_string, &status_is_string,

        &addr_size_cells, &reg_format, &ranges_format,

        &avoid_default_addr_size,
        &obsolete_chosen_interrupt_controller,

        &always_fail,
};

static void enable_warning_error(struct check *c, bool warn, bool error)
{
        int i;

        /* Raising level, also raise it for prereqs */
        if ((warn && !c->warn) || (error && !c->error))
                for (i = 0; i < c->num_prereqs; i++)
                        enable_warning_error(c->prereq[i], warn, error);

        c->warn = c->warn || warn;
        c->error = c->error || error;
}

static void disable_warning_error(struct check *c, bool warn, bool error)
{
        int i;

        /* Lowering level, also lower it for things this is the prereq
         * for */
        if ((warn && c->warn) || (error && c->error)) {
                for (i = 0; i < ARRAY_SIZE(check_table); i++) {
                        struct check *cc = check_table[i];
                        int j;

                        for (j = 0; j < cc->num_prereqs; j++)
                                if (cc->prereq[j] == c)
                                        disable_warning_error(cc, warn, error);
                }
        }

        c->warn = c->warn && !warn;
        c->error = c->error && !error;
}

void parse_checks_option(bool warn, bool error, const char *optarg)
{
        int i;
        const char *name = optarg;
        bool enable = true;

        if ((strncmp(optarg, "no-", 3) == 0)
            || (strncmp(optarg, "no_", 3) == 0)) {
                name = optarg + 3;
                enable = false;
        }

        for (i = 0; i < ARRAY_SIZE(check_table); i++) {
                struct check *c = check_table[i];

                if (streq(c->name, name)) {
                        if (enable)
                                enable_warning_error(c, warn, error);
                        else
                                disable_warning_error(c, warn, error);
                        return;
                }
        }

        die("Unrecognized check name \"%s\"\n", name);
}

void process_checks(int force, struct boot_info *bi)
{
        struct node *dt = bi->dt;
        int i;
        int error = 0;

        for (i = 0; i < ARRAY_SIZE(check_table); i++) {
                struct check *c = check_table[i];

                if (c->warn || c->error)
                        error = error || run_check(c, dt);
        }

        if (error) {
                if (!force) {
                        fprintf(stderr, "ERROR: Input tree has errors, aborting "
                                "(use -f to force output)\n");
                        exit(2);
                } else if (quiet < 3) {
                        fprintf(stderr, "Warning: Input tree has errors, "
                                "output forced\n");
                }
        }
}
/* [<][>][^][v][top][bottom][index][help] */
root/scripts/dtc/checks.c

DEFINITIONS
