[PATCH] libfdt: migrate fdt_ro.c to a wrapper of scripts/dtc/libfdt/fdt_ro.c
Masahiro Yamada
masahiroy at kernel.org
Thu Apr 16 07:30:22 CEST 2020
There is no essential difference between scripts/dtc/libfdt/fdt_ro.c
and lib/libfdt/fdt_ro.c
Migrate to a simple wrapper like the other files.
Signed-off-by: Masahiro Yamada <masahiroy at kernel.org>
---
lib/libfdt/Makefile | 5 +-
lib/libfdt/fdt_ro.c | 925 +-------------------------------------------
2 files changed, 2 insertions(+), 928 deletions(-)
diff --git a/lib/libfdt/Makefile b/lib/libfdt/Makefile
index 5d3ae4e2f1..65981a6131 100644
--- a/lib/libfdt/Makefile
+++ b/lib/libfdt/Makefile
@@ -6,6 +6,7 @@
# Use upstream code.
obj-y += \
fdt.o \
+ fdt_ro.o \
fdt_wip.o \
fdt_strerror.o \
fdt_sw.o \
@@ -15,10 +16,6 @@ obj-y += \
obj-$(CONFIG_OF_LIBFDT_OVERLAY) += fdt_overlay.o
-# Locally modified for U-Boot.
-# TODO: split out the local modifiction.
-obj-y += fdt_ro.o
-
# U-Boot own file
obj-y += fdt_region.o
diff --git a/lib/libfdt/fdt_ro.c b/lib/libfdt/fdt_ro.c
index be03aea9eb..7ede074537 100644
--- a/lib/libfdt/fdt_ro.c
+++ b/lib/libfdt/fdt_ro.c
@@ -1,925 +1,2 @@
-// SPDX-License-Identifier: GPL-2.0+ OR BSD-2-Clause
-/*
- * libfdt - Flat Device Tree manipulation
- * Copyright (C) 2006 David Gibson, IBM Corporation.
- */
#include <linux/libfdt_env.h>
-
-#ifndef USE_HOSTCC
-#include <fdt.h>
-#include <linux/libfdt.h>
-#else
-#include "fdt_host.h"
-#endif
-
-#include "libfdt_internal.h"
-
-static int fdt_nodename_eq_(const void *fdt, int offset,
- const char *s, int len)
-{
- int olen;
- const char *p = fdt_get_name(fdt, offset, &olen);
-
- if (!p || (fdt_chk_extra() && olen < len))
- /* short match */
- return 0;
-
- if (memcmp(p, s, len) != 0)
- return 0;
-
- if (p[len] == '\0')
- return 1;
- else if (!memchr(s, '@', len) && (p[len] == '@'))
- return 1;
- else
- return 0;
-}
-
-const char *fdt_get_string(const void *fdt, int stroffset, int *lenp)
-{
- int32_t totalsize;
- uint32_t absoffset;
- size_t len;
- int err;
- const char *s, *n;
-
- if (!fdt_chk_extra()) {
- s = (const char *)fdt + fdt_off_dt_strings(fdt) + stroffset;
-
- if (lenp)
- *lenp = strlen(s);
- return s;
- }
- totalsize = fdt_ro_probe_(fdt);
- err = totalsize;
- if (totalsize < 0)
- goto fail;
-
- err = -FDT_ERR_BADOFFSET;
- absoffset = stroffset + fdt_off_dt_strings(fdt);
- if (absoffset >= totalsize)
- goto fail;
- len = totalsize - absoffset;
-
- if (fdt_magic(fdt) == FDT_MAGIC) {
- if (stroffset < 0)
- goto fail;
- if (!fdt_chk_version() || fdt_version(fdt) >= 17) {
- if (stroffset >= fdt_size_dt_strings(fdt))
- goto fail;
- if ((fdt_size_dt_strings(fdt) - stroffset) < len)
- len = fdt_size_dt_strings(fdt) - stroffset;
- }
- } else if (fdt_magic(fdt) == FDT_SW_MAGIC) {
- if ((stroffset >= 0)
- || (stroffset < -fdt_size_dt_strings(fdt)))
- goto fail;
- if ((-stroffset) < len)
- len = -stroffset;
- } else {
- err = -FDT_ERR_INTERNAL;
- goto fail;
- }
-
- s = (const char *)fdt + absoffset;
- n = memchr(s, '\0', len);
- if (!n) {
- /* missing terminating NULL */
- err = -FDT_ERR_TRUNCATED;
- goto fail;
- }
-
- if (lenp)
- *lenp = n - s;
- return s;
-
-fail:
- if (lenp)
- *lenp = err;
- return NULL;
-}
-
-const char *fdt_string(const void *fdt, int stroffset)
-{
- return fdt_get_string(fdt, stroffset, NULL);
-}
-
-static int fdt_string_eq_(const void *fdt, int stroffset,
- const char *s, int len)
-{
- int slen;
- const char *p = fdt_get_string(fdt, stroffset, &slen);
-
- return p && (slen == len) && (memcmp(p, s, len) == 0);
-}
-
-int fdt_find_max_phandle(const void *fdt, uint32_t *phandle)
-{
- uint32_t max = 0;
- int offset = -1;
-
- while (true) {
- uint32_t value;
-
- offset = fdt_next_node(fdt, offset, NULL);
- if (offset < 0) {
- if (offset == -FDT_ERR_NOTFOUND)
- break;
-
- return offset;
- }
-
- value = fdt_get_phandle(fdt, offset);
-
- if (value > max)
- max = value;
- }
-
- if (phandle)
- *phandle = max;
-
- return 0;
-}
-
-int fdt_generate_phandle(const void *fdt, uint32_t *phandle)
-{
- uint32_t max;
- int err;
-
- err = fdt_find_max_phandle(fdt, &max);
- if (err < 0)
- return err;
-
- if (max == FDT_MAX_PHANDLE)
- return -FDT_ERR_NOPHANDLES;
-
- if (phandle)
- *phandle = max + 1;
-
- return 0;
-}
-
-static const struct fdt_reserve_entry *fdt_mem_rsv(const void *fdt, int n)
-{
- int offset = n * sizeof(struct fdt_reserve_entry);
- int absoffset = fdt_off_mem_rsvmap(fdt) + offset;
-
- if (fdt_chk_extra()) {
- if (absoffset < fdt_off_mem_rsvmap(fdt))
- return NULL;
- if (absoffset > fdt_totalsize(fdt) -
- sizeof(struct fdt_reserve_entry))
- return NULL;
- }
- return fdt_mem_rsv_(fdt, n);
-}
-
-int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size)
-{
- const struct fdt_reserve_entry *re;
-
- FDT_RO_PROBE(fdt);
- re = fdt_mem_rsv(fdt, n);
- if (fdt_chk_extra() && !re)
- return -FDT_ERR_BADOFFSET;
-
- *address = fdt64_to_cpu(re->address);
- *size = fdt64_to_cpu(re->size);
- return 0;
-}
-
-int fdt_num_mem_rsv(const void *fdt)
-{
- int i;
- const struct fdt_reserve_entry *re;
-
- for (i = 0; (re = fdt_mem_rsv(fdt, i)) != NULL; i++) {
- if (fdt64_to_cpu(re->size) == 0)
- return i;
- }
- return -FDT_ERR_TRUNCATED;
-}
-
-static int nextprop_(const void *fdt, int offset)
-{
- uint32_t tag;
- int nextoffset;
-
- do {
- tag = fdt_next_tag(fdt, offset, &nextoffset);
-
- switch (tag) {
- case FDT_END:
- if (nextoffset >= 0)
- return -FDT_ERR_BADSTRUCTURE;
- else
- return nextoffset;
-
- case FDT_PROP:
- return offset;
- }
- offset = nextoffset;
- } while (tag == FDT_NOP);
-
- return -FDT_ERR_NOTFOUND;
-}
-
-int fdt_subnode_offset_namelen(const void *fdt, int offset,
- const char *name, int namelen)
-{
- int depth;
-
- FDT_RO_PROBE(fdt);
-
- for (depth = 0;
- (offset >= 0) && (depth >= 0);
- offset = fdt_next_node(fdt, offset, &depth))
- if ((depth == 1)
- && fdt_nodename_eq_(fdt, offset, name, namelen))
- return offset;
-
- if (depth < 0)
- return -FDT_ERR_NOTFOUND;
- return offset; /* error */
-}
-
-int fdt_subnode_offset(const void *fdt, int parentoffset,
- const char *name)
-{
- return fdt_subnode_offset_namelen(fdt, parentoffset, name, strlen(name));
-}
-
-int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen)
-{
- const char *end = path + namelen;
- const char *p = path;
- int offset = 0;
-
- FDT_RO_PROBE(fdt);
-
- /* see if we have an alias */
- if (*path != '/') {
- const char *q = memchr(path, '/', end - p);
-
- if (!q)
- q = end;
-
- p = fdt_get_alias_namelen(fdt, p, q - p);
- if (!p)
- return -FDT_ERR_BADPATH;
- offset = fdt_path_offset(fdt, p);
-
- p = q;
- }
-
- while (p < end) {
- const char *q;
-
- while (*p == '/') {
- p++;
- if (p == end)
- return offset;
- }
- q = memchr(p, '/', end - p);
- if (! q)
- q = end;
-
- offset = fdt_subnode_offset_namelen(fdt, offset, p, q-p);
- if (offset < 0)
- return offset;
-
- p = q;
- }
-
- return offset;
-}
-
-int fdt_path_offset(const void *fdt, const char *path)
-{
- return fdt_path_offset_namelen(fdt, path, strlen(path));
-}
-
-const char *fdt_get_name(const void *fdt, int nodeoffset, int *len)
-{
- const struct fdt_node_header *nh = fdt_offset_ptr_(fdt, nodeoffset);
- const char *nameptr;
- int err;
-
- if (fdt_chk_extra() &&
- (((err = fdt_ro_probe_(fdt)) < 0)
- || ((err = fdt_check_node_offset_(fdt, nodeoffset)) < 0)))
- goto fail;
-
- nameptr = nh->name;
-
- if (fdt_chk_version() && fdt_version(fdt) < 0x10) {
- /*
- * For old FDT versions, match the naming conventions of V16:
- * give only the leaf name (after all /). The actual tree
- * contents are loosely checked.
- */
- const char *leaf;
- leaf = strrchr(nameptr, '/');
- if (leaf == NULL) {
- err = -FDT_ERR_BADSTRUCTURE;
- goto fail;
- }
- nameptr = leaf+1;
- }
-
- if (len)
- *len = strlen(nameptr);
-
- return nameptr;
-
- fail:
- if (len)
- *len = err;
- return NULL;
-}
-
-int fdt_first_property_offset(const void *fdt, int nodeoffset)
-{
- int offset;
-
- if ((offset = fdt_check_node_offset_(fdt, nodeoffset)) < 0)
- return offset;
-
- return nextprop_(fdt, offset);
-}
-
-int fdt_next_property_offset(const void *fdt, int offset)
-{
- if ((offset = fdt_check_prop_offset_(fdt, offset)) < 0)
- return offset;
-
- return nextprop_(fdt, offset);
-}
-
-static const struct fdt_property *fdt_get_property_by_offset_(const void *fdt,
- int offset,
- int *lenp)
-{
- int err;
- const struct fdt_property *prop;
-
- if (fdt_chk_basic() && (err = fdt_check_prop_offset_(fdt, offset)) < 0) {
- if (lenp)
- *lenp = err;
- return NULL;
- }
-
- prop = fdt_offset_ptr_(fdt, offset);
-
- if (lenp)
- *lenp = fdt32_to_cpu(prop->len);
-
- return prop;
-}
-
-const struct fdt_property *fdt_get_property_by_offset(const void *fdt,
- int offset,
- int *lenp)
-{
- /* Prior to version 16, properties may need realignment
- * and this API does not work. fdt_getprop_*() will, however. */
-
- if (fdt_chk_version() && fdt_version(fdt) < 0x10) {
- if (lenp)
- *lenp = -FDT_ERR_BADVERSION;
- return NULL;
- }
-
- return fdt_get_property_by_offset_(fdt, offset, lenp);
-}
-
-static const struct fdt_property *fdt_get_property_namelen_(const void *fdt,
- int offset,
- const char *name,
- int namelen,
- int *lenp,
- int *poffset)
-{
- for (offset = fdt_first_property_offset(fdt, offset);
- (offset >= 0);
- (offset = fdt_next_property_offset(fdt, offset))) {
- const struct fdt_property *prop;
-
- prop = fdt_get_property_by_offset_(fdt, offset, lenp);
- if (fdt_chk_extra() && !prop) {
- offset = -FDT_ERR_INTERNAL;
- break;
- }
- if (fdt_string_eq_(fdt, fdt32_to_cpu(prop->nameoff),
- name, namelen)) {
- if (poffset)
- *poffset = offset;
- return prop;
- }
- }
-
- if (lenp)
- *lenp = offset;
- return NULL;
-}
-
-
-const struct fdt_property *fdt_get_property_namelen(const void *fdt,
- int offset,
- const char *name,
- int namelen, int *lenp)
-{
- /* Prior to version 16, properties may need realignment
- * and this API does not work. fdt_getprop_*() will, however. */
- if (fdt_chk_version() && fdt_version(fdt) < 0x10) {
- if (lenp)
- *lenp = -FDT_ERR_BADVERSION;
- return NULL;
- }
-
- return fdt_get_property_namelen_(fdt, offset, name, namelen, lenp,
- NULL);
-}
-
-
-const struct fdt_property *fdt_get_property(const void *fdt,
- int nodeoffset,
- const char *name, int *lenp)
-{
- return fdt_get_property_namelen(fdt, nodeoffset, name,
- strlen(name), lenp);
-}
-
-const void *fdt_getprop_namelen(const void *fdt, int nodeoffset,
- const char *name, int namelen, int *lenp)
-{
- int poffset;
- const struct fdt_property *prop;
-
- prop = fdt_get_property_namelen_(fdt, nodeoffset, name, namelen, lenp,
- &poffset);
- if (!prop)
- return NULL;
-
- /* Handle realignment */
- if (fdt_chk_version() && fdt_version(fdt) < 0x10 &&
- (poffset + sizeof(*prop)) % 8 && fdt32_to_cpu(prop->len) >= 8)
- return prop->data + 4;
- return prop->data;
-}
-
-const void *fdt_getprop_by_offset(const void *fdt, int offset,
- const char **namep, int *lenp)
-{
- const struct fdt_property *prop;
-
- prop = fdt_get_property_by_offset_(fdt, offset, lenp);
- if (!prop)
- return NULL;
- if (namep) {
- const char *name;
- int namelen;
-
- if (fdt_chk_extra()) {
- name = fdt_get_string(fdt, fdt32_to_cpu(prop->nameoff),
- &namelen);
- if (!name) {
- if (lenp)
- *lenp = namelen;
- return NULL;
- }
- *namep = name;
- } else {
- *namep = fdt_string(fdt, fdt32_to_cpu(prop->nameoff));
- }
- }
-
- /* Handle realignment */
- if (fdt_chk_version() && fdt_version(fdt) < 0x10 &&
- (offset + sizeof(*prop)) % 8 && fdt32_to_cpu(prop->len) >= 8)
- return prop->data + 4;
- return prop->data;
-}
-
-const void *fdt_getprop(const void *fdt, int nodeoffset,
- const char *name, int *lenp)
-{
- return fdt_getprop_namelen(fdt, nodeoffset, name, strlen(name), lenp);
-}
-
-uint32_t fdt_get_phandle(const void *fdt, int nodeoffset)
-{
- const fdt32_t *php;
- int len;
-
- /* FIXME: This is a bit sub-optimal, since we potentially scan
- * over all the properties twice. */
- php = fdt_getprop(fdt, nodeoffset, "phandle", &len);
- if (!php || (len != sizeof(*php))) {
- php = fdt_getprop(fdt, nodeoffset, "linux,phandle", &len);
- if (!php || (len != sizeof(*php)))
- return 0;
- }
-
- return fdt32_to_cpu(*php);
-}
-
-const char *fdt_get_alias_namelen(const void *fdt,
- const char *name, int namelen)
-{
- int aliasoffset;
-
- aliasoffset = fdt_path_offset(fdt, "/aliases");
- if (aliasoffset < 0)
- return NULL;
-
- return fdt_getprop_namelen(fdt, aliasoffset, name, namelen, NULL);
-}
-
-const char *fdt_get_alias(const void *fdt, const char *name)
-{
- return fdt_get_alias_namelen(fdt, name, strlen(name));
-}
-
-int fdt_get_path(const void *fdt, int nodeoffset, char *buf, int buflen)
-{
- int pdepth = 0, p = 0;
- int offset, depth, namelen;
- const char *name;
-
- FDT_RO_PROBE(fdt);
-
- if (buflen < 2)
- return -FDT_ERR_NOSPACE;
-
- for (offset = 0, depth = 0;
- (offset >= 0) && (offset <= nodeoffset);
- offset = fdt_next_node(fdt, offset, &depth)) {
- while (pdepth > depth) {
- do {
- p--;
- } while (buf[p-1] != '/');
- pdepth--;
- }
-
- if (pdepth >= depth) {
- name = fdt_get_name(fdt, offset, &namelen);
- if (!name)
- return namelen;
- if ((p + namelen + 1) <= buflen) {
- memcpy(buf + p, name, namelen);
- p += namelen;
- buf[p++] = '/';
- pdepth++;
- }
- }
-
- if (offset == nodeoffset) {
- if (pdepth < (depth + 1))
- return -FDT_ERR_NOSPACE;
-
- if (p > 1) /* special case so that root path is "/", not "" */
- p--;
- buf[p] = '\0';
- return 0;
- }
- }
-
- if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
- return -FDT_ERR_BADOFFSET;
- else if (offset == -FDT_ERR_BADOFFSET)
- return -FDT_ERR_BADSTRUCTURE;
-
- return offset; /* error from fdt_next_node() */
-}
-
-int fdt_supernode_atdepth_offset(const void *fdt, int nodeoffset,
- int supernodedepth, int *nodedepth)
-{
- int offset, depth;
- int supernodeoffset = -FDT_ERR_INTERNAL;
-
- FDT_RO_PROBE(fdt);
-
- if (supernodedepth < 0)
- return -FDT_ERR_NOTFOUND;
-
- for (offset = 0, depth = 0;
- (offset >= 0) && (offset <= nodeoffset);
- offset = fdt_next_node(fdt, offset, &depth)) {
- if (depth == supernodedepth)
- supernodeoffset = offset;
-
- if (offset == nodeoffset) {
- if (nodedepth)
- *nodedepth = depth;
-
- if (supernodedepth > depth)
- return -FDT_ERR_NOTFOUND;
- else
- return supernodeoffset;
- }
- }
-
- if (fdt_chk_extra()) {
- if ((offset == -FDT_ERR_NOTFOUND) || (offset >= 0))
- return -FDT_ERR_BADOFFSET;
- else if (offset == -FDT_ERR_BADOFFSET)
- return -FDT_ERR_BADSTRUCTURE;
- }
-
- return offset; /* error from fdt_next_node() */
-}
-
-int fdt_node_depth(const void *fdt, int nodeoffset)
-{
- int nodedepth;
- int err;
-
- err = fdt_supernode_atdepth_offset(fdt, nodeoffset, 0, &nodedepth);
- if (err)
- return (!fdt_chk_extra() || err < 0) ? err : -FDT_ERR_INTERNAL;
- return nodedepth;
-}
-
-int fdt_parent_offset(const void *fdt, int nodeoffset)
-{
- int nodedepth = fdt_node_depth(fdt, nodeoffset);
-
- if (nodedepth < 0)
- return nodedepth;
- return fdt_supernode_atdepth_offset(fdt, nodeoffset,
- nodedepth - 1, NULL);
-}
-
-int fdt_node_offset_by_prop_value(const void *fdt, int startoffset,
- const char *propname,
- const void *propval, int proplen)
-{
- int offset;
- const void *val;
- int len;
-
- FDT_RO_PROBE(fdt);
-
- /* FIXME: The algorithm here is pretty horrible: we scan each
- * property of a node in fdt_getprop(), then if that didn't
- * find what we want, we scan over them again making our way
- * to the next node. Still it's the easiest to implement
- * approach; performance can come later. */
- for (offset = fdt_next_node(fdt, startoffset, NULL);
- offset >= 0;
- offset = fdt_next_node(fdt, offset, NULL)) {
- val = fdt_getprop(fdt, offset, propname, &len);
- if (val && (len == proplen)
- && (memcmp(val, propval, len) == 0))
- return offset;
- }
-
- return offset; /* error from fdt_next_node() */
-}
-
-int fdt_node_offset_by_phandle(const void *fdt, uint32_t phandle)
-{
- int offset;
-
- if ((phandle == 0) || (phandle == -1))
- return -FDT_ERR_BADPHANDLE;
-
- FDT_RO_PROBE(fdt);
-
- /* FIXME: The algorithm here is pretty horrible: we
- * potentially scan each property of a node in
- * fdt_get_phandle(), then if that didn't find what
- * we want, we scan over them again making our way to the next
- * node. Still it's the easiest to implement approach;
- * performance can come later. */
- for (offset = fdt_next_node(fdt, -1, NULL);
- offset >= 0;
- offset = fdt_next_node(fdt, offset, NULL)) {
- if (fdt_get_phandle(fdt, offset) == phandle)
- return offset;
- }
-
- return offset; /* error from fdt_next_node() */
-}
-
-int fdt_stringlist_contains(const char *strlist, int listlen, const char *str)
-{
- int len = strlen(str);
- const char *p;
-
- while (listlen >= len) {
- if (memcmp(str, strlist, len+1) == 0)
- return 1;
- p = memchr(strlist, '\0', listlen);
- if (!p)
- return 0; /* malformed strlist.. */
- listlen -= (p-strlist) + 1;
- strlist = p + 1;
- }
- return 0;
-}
-
-int fdt_stringlist_count(const void *fdt, int nodeoffset, const char *property)
-{
- const char *list, *end;
- int length, count = 0;
-
- list = fdt_getprop(fdt, nodeoffset, property, &length);
- if (!list)
- return length;
-
- end = list + length;
-
- while (list < end) {
- length = strnlen(list, end - list) + 1;
-
- /* Abort if the last string isn't properly NUL-terminated. */
- if (list + length > end)
- return -FDT_ERR_BADVALUE;
-
- list += length;
- count++;
- }
-
- return count;
-}
-
-int fdt_stringlist_search(const void *fdt, int nodeoffset, const char *property,
- const char *string)
-{
- int length, len, idx = 0;
- const char *list, *end;
-
- list = fdt_getprop(fdt, nodeoffset, property, &length);
- if (!list)
- return length;
-
- len = strlen(string) + 1;
- end = list + length;
-
- while (list < end) {
- length = strnlen(list, end - list) + 1;
-
- /* Abort if the last string isn't properly NUL-terminated. */
- if (list + length > end)
- return -FDT_ERR_BADVALUE;
-
- if (length == len && memcmp(list, string, length) == 0)
- return idx;
-
- list += length;
- idx++;
- }
-
- return -FDT_ERR_NOTFOUND;
-}
-
-const char *fdt_stringlist_get(const void *fdt, int nodeoffset,
- const char *property, int idx,
- int *lenp)
-{
- const char *list, *end;
- int length;
-
- list = fdt_getprop(fdt, nodeoffset, property, &length);
- if (!list) {
- if (lenp)
- *lenp = length;
-
- return NULL;
- }
-
- end = list + length;
-
- while (list < end) {
- length = strnlen(list, end - list) + 1;
-
- /* Abort if the last string isn't properly NUL-terminated. */
- if (list + length > end) {
- if (lenp)
- *lenp = -FDT_ERR_BADVALUE;
-
- return NULL;
- }
-
- if (idx == 0) {
- if (lenp)
- *lenp = length - 1;
-
- return list;
- }
-
- list += length;
- idx--;
- }
-
- if (lenp)
- *lenp = -FDT_ERR_NOTFOUND;
-
- return NULL;
-}
-
-int fdt_node_check_compatible(const void *fdt, int nodeoffset,
- const char *compatible)
-{
- const void *prop;
- int len;
-
- prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
- if (!prop)
- return len;
-
- return !fdt_stringlist_contains(prop, len, compatible);
-}
-
-int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
- const char *compatible)
-{
- int offset, err;
-
- FDT_RO_PROBE(fdt);
-
- /* FIXME: The algorithm here is pretty horrible: we scan each
- * property of a node in fdt_node_check_compatible(), then if
- * that didn't find what we want, we scan over them again
- * making our way to the next node. Still it's the easiest to
- * implement approach; performance can come later. */
- for (offset = fdt_next_node(fdt, startoffset, NULL);
- offset >= 0;
- offset = fdt_next_node(fdt, offset, NULL)) {
- err = fdt_node_check_compatible(fdt, offset, compatible);
- if ((err < 0) && (err != -FDT_ERR_NOTFOUND))
- return err;
- else if (err == 0)
- return offset;
- }
-
- return offset; /* error from fdt_next_node() */
-}
-
-#if !defined(CHECK_LEVEL) || CHECK_LEVEL > 0
-int fdt_check_full(const void *fdt, size_t bufsize)
-{
- int err;
- int num_memrsv;
- int offset, nextoffset = 0;
- uint32_t tag;
- unsigned depth = 0;
- const void *prop;
- const char *propname;
-
- if (bufsize < FDT_V1_SIZE)
- return -FDT_ERR_TRUNCATED;
- err = fdt_check_header(fdt);
- if (err != 0)
- return err;
- if (bufsize < fdt_totalsize(fdt))
- return -FDT_ERR_TRUNCATED;
-
- num_memrsv = fdt_num_mem_rsv(fdt);
- if (num_memrsv < 0)
- return num_memrsv;
-
- while (1) {
- offset = nextoffset;
- tag = fdt_next_tag(fdt, offset, &nextoffset);
-
- if (nextoffset < 0)
- return nextoffset;
-
- switch (tag) {
- case FDT_NOP:
- break;
-
- case FDT_END:
- if (depth != 0)
- return -FDT_ERR_BADSTRUCTURE;
- return 0;
-
- case FDT_BEGIN_NODE:
- depth++;
- if (depth > INT_MAX)
- return -FDT_ERR_BADSTRUCTURE;
- break;
-
- case FDT_END_NODE:
- if (depth == 0)
- return -FDT_ERR_BADSTRUCTURE;
- depth--;
- break;
-
- case FDT_PROP:
- prop = fdt_getprop_by_offset(fdt, offset, &propname,
- &err);
- if (!prop)
- return err;
- break;
-
- default:
- return -FDT_ERR_INTERNAL;
- }
- }
-}
-#endif
+#include "../../scripts/dtc/libfdt/fdt_ro.c"
--
2.25.1
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