Fix assorted sparse warnings
This fixes a great many sparse warnings on the fdt and libfdt sources.
These are mostly due to incorrect mixing of endian annotated and native
integer types.
This includes fixing a couple of quasi-bugs where we had endian conversions
the wrong way around (this will have the right effect in practice, but is
certainly conceptually incorrect).
This doesn't make the whole tree sparse clean: there are many warnings in
bison and lex generated code, and there are a handful of other remaining
warnings that are (for now) more trouble than they're worth to fix (and
are not genuine bugs).
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
diff --git a/flattree.c b/flattree.c
index fba6ab3..5de5fee 100644
--- a/flattree.c
+++ b/flattree.c
@@ -179,7 +179,7 @@
emit_offset_label(f, m->ref, m->offset);
while ((d.len - off) >= sizeof(uint32_t)) {
- asm_emit_cell(e, fdt32_to_cpu(*((uint32_t *)(d.val+off))));
+ asm_emit_cell(e, fdt32_to_cpu(*((fdt32_t *)(d.val+off))));
off += sizeof(uint32_t);
}
@@ -608,7 +608,7 @@
static uint32_t flat_read_word(struct inbuf *inb)
{
- uint32_t val;
+ fdt32_t val;
assert(((inb->ptr - inb->base) % sizeof(val)) == 0);
@@ -717,13 +717,15 @@
* First pass, count entries.
*/
while (1) {
+ uint64_t address, size;
+
flat_read_chunk(inb, &re, sizeof(re));
- re.address = fdt64_to_cpu(re.address);
- re.size = fdt64_to_cpu(re.size);
- if (re.size == 0)
+ address = fdt64_to_cpu(re.address);
+ size = fdt64_to_cpu(re.size);
+ if (size == 0)
break;
- new = build_reserve_entry(re.address, re.size);
+ new = build_reserve_entry(address, size);
reservelist = add_reserve_entry(reservelist, new);
}
@@ -816,6 +818,7 @@
struct dt_info *dt_from_blob(const char *fname)
{
FILE *f;
+ fdt32_t magic_buf, totalsize_buf;
uint32_t magic, totalsize, version, size_dt, boot_cpuid_phys;
uint32_t off_dt, off_str, off_mem_rsvmap;
int rc;
@@ -832,7 +835,7 @@
f = srcfile_relative_open(fname, NULL);
- rc = fread(&magic, sizeof(magic), 1, f);
+ rc = fread(&magic_buf, sizeof(magic_buf), 1, f);
if (ferror(f))
die("Error reading DT blob magic number: %s\n",
strerror(errno));
@@ -843,11 +846,11 @@
die("Mysterious short read reading magic number\n");
}
- magic = fdt32_to_cpu(magic);
+ magic = fdt32_to_cpu(magic_buf);
if (magic != FDT_MAGIC)
die("Blob has incorrect magic number\n");
- rc = fread(&totalsize, sizeof(totalsize), 1, f);
+ rc = fread(&totalsize_buf, sizeof(totalsize_buf), 1, f);
if (ferror(f))
die("Error reading DT blob size: %s\n", strerror(errno));
if (rc < 1) {
@@ -857,7 +860,7 @@
die("Mysterious short read reading blob size\n");
}
- totalsize = fdt32_to_cpu(totalsize);
+ totalsize = fdt32_to_cpu(totalsize_buf);
if (totalsize < FDT_V1_SIZE)
die("DT blob size (%d) is too small\n", totalsize);