Sync to upstream dtc commit 53bf130b1cdd ("libfdt: simplify
fdt_node_check_compatible()"). This adds the following commits from
upstream:
53bf130 libfdt: simplify fdt_node_check_compatible()
c9d9121 Warn on node name unit-address presence/absence mismatch
2e53f9d Catch unsigned 32bit overflow when parsing flattened device tree offsets
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
As usual, this is just an automated copy of upstream dtc into the kernel
tree. The changeset is small enough that I have left it here.
The main reason for this sync is to pick-up the new unit-address
warnings.
Rob
scripts/dtc/checks.c | 26 ++++++++++++++++++++++++++
scripts/dtc/flattree.c | 4 ++--
scripts/dtc/libfdt/fdt_ro.c | 6 ++----
scripts/dtc/version_gen.h | 2 +-
4 files changed, 31 insertions(+), 7 deletions(-)
diff --git a/scripts/dtc/checks.c b/scripts/dtc/checks.c
index 0c03ac9..386f956 100644
--- a/scripts/dtc/checks.c
+++ b/scripts/dtc/checks.c
@@ -294,6 +294,30 @@ static void check_node_name_format(struct check *c, struct node *dt,
}
NODE_ERROR(node_name_format, NULL, &node_name_chars);
+static void check_unit_address_vs_reg(struct check *c, struct node *dt,
+ struct node *node)
+{
+ const char *unitname = get_unitname(node);
+ struct property *prop = get_property(node, "reg");
+
+ if (!prop) {
+ prop = get_property(node, "ranges");
+ if (prop && !prop->val.len)
+ prop = NULL;
+ }
+
+ if (prop) {
+ if (!unitname[0])
+ FAIL(c, "Node %s has a reg or ranges property, but no unit name",
+ node->fullpath);
+ } else {
+ if (unitname[0])
+ FAIL(c, "Node %s has a unit name, but no reg property",
+ node->fullpath);
+ }
+}
+NODE_WARNING(unit_address_vs_reg, NULL);
+
static void check_property_name_chars(struct check *c, struct node *dt,
struct node *node, struct property *prop)
{
@@ -667,6 +691,8 @@ static struct check *check_table[] = {
&addr_size_cells, ®_format, &ranges_format,
+ &unit_address_vs_reg,
+
&avoid_default_addr_size,
&obsolete_chosen_interrupt_controller,
diff --git a/scripts/dtc/flattree.c b/scripts/dtc/flattree.c
index bd99fa2..ec14954 100644
--- a/scripts/dtc/flattree.c
+++ b/scripts/dtc/flattree.c
@@ -889,7 +889,7 @@ struct boot_info *dt_from_blob(const char *fname)
if (version >= 3) {
uint32_t size_str = fdt32_to_cpu(fdt->size_dt_strings);
- if (off_str+size_str > totalsize)
+ if ((off_str+size_str < off_str) || (off_str+size_str > totalsize))
die("String table extends past total size\n");
inbuf_init(&strbuf, blob + off_str, blob + off_str + size_str);
} else {
@@ -898,7 +898,7 @@ struct boot_info *dt_from_blob(const char *fname)
if (version >= 17) {
size_dt = fdt32_to_cpu(fdt->size_dt_struct);
- if (off_dt+size_dt > totalsize)
+ if ((off_dt+size_dt < off_dt) || (off_dt+size_dt > totalsize))
die("Structure block extends past total size\n");
}
diff --git a/scripts/dtc/libfdt/fdt_ro.c b/scripts/dtc/libfdt/fdt_ro.c
index e5b3136..50cce86 100644
--- a/scripts/dtc/libfdt/fdt_ro.c
+++ b/scripts/dtc/libfdt/fdt_ro.c
@@ -647,10 +647,8 @@ int fdt_node_check_compatible(const void *fdt, int nodeoffset,
prop = fdt_getprop(fdt, nodeoffset, "compatible", &len);
if (!prop)
return len;
- if (fdt_stringlist_contains(prop, len, compatible))
- return 0;
- else
- return 1;
+
+ return !fdt_stringlist_contains(prop, len, compatible);
}
int fdt_node_offset_by_compatible(const void *fdt, int startoffset,
diff --git a/scripts/dtc/version_gen.h b/scripts/dtc/version_gen.h
index 11d93e6..ad9b05a 100644
--- a/scripts/dtc/version_gen.h
+++ b/scripts/dtc/version_gen.h
@@ -1 +1 @@
-#define DTC_VERSION "DTC 1.4.1-gb06e55c8"
+#define DTC_VERSION "DTC 1.4.1-g53bf130b"
--
2.5.0
--
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