[U-Boot] [PATCH 1/2] lib: fdt: Allow enabling both LZO and GZIP DT compression
Marek Vasut
marek.vasut at gmail.com
Wed Mar 13 21:08:19 UTC 2019
Allow enabling both LZO and GZIP DT compression in SPL and fix a
bug where if the GZIP decompression failed, the LZO decompression
would not even be attempted.
Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: Simon Glass <sjg at chromium.org>
Cc: Tom Rini <trini at konsulko.com>
---
lib/fdtdec.c | 19 +++++++++++++------
1 file changed, 13 insertions(+), 6 deletions(-)
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 79915b59bd..d5e8b5a420 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1183,16 +1183,21 @@ int fdtdec_setup_memory_banksize(void)
static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
{
size_t sz_out = CONFIG_SPL_MULTI_DTB_FIT_UNCOMPRESS_SZ;
+ bool gzip = 0, lzo = 0;
ulong sz_in = sz_src;
void *dst;
int rc;
if (CONFIG_IS_ENABLED(GZIP))
- if (gzip_parse_header(src, sz_in) < 0)
- return -1;
+ if (gzip_parse_header(src, sz_in) >= 0)
+ gzip = 1;
if (CONFIG_IS_ENABLED(LZO))
- if (!lzop_is_valid_header(src))
- return -EBADMSG;
+ if (!gzip && lzop_is_valid_header(src))
+ lzo = 1;
+
+ if (!gzip && !lzo)
+ return -EBADMSG;
+
if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) {
dst = malloc(sz_out);
@@ -1208,10 +1213,12 @@ static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
# endif
}
- if (CONFIG_IS_ENABLED(GZIP))
+ if (CONFIG_IS_ENABLED(GZIP) && gzip)
rc = gunzip(dst, sz_out, (u8 *)src, &sz_in);
- else if (CONFIG_IS_ENABLED(LZO))
+ else if (CONFIG_IS_ENABLED(LZO) && lzo)
rc = lzop_decompress(src, sz_in, dst, &sz_out);
+ else
+ hang();
if (rc < 0) {
/* not a valid compressed blob */
--
2.20.1
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