We often need the requirement that compressing those memory range start from 0, but the default deflate code in zlib prevent us to do this. Considering the special case of uboot, that it could access all memory range, it is reasonable to be able to also take the address space from 0 into compression.
Signed-off-by: Lei Wen leiwen@marvell.com --- Changelog: No change
lib/zlib/deflate.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/lib/zlib/deflate.c b/lib/zlib/deflate.c index 5c4022f..9a20b70 100644 --- a/lib/zlib/deflate.c +++ b/lib/zlib/deflate.c @@ -592,9 +592,7 @@ int ZEXPORT deflate (strm, flush) } s = strm->state;
- if (strm->next_out == Z_NULL || - (strm->next_in == Z_NULL && strm->avail_in != 0) || - (s->status == FINISH_STATE && flush != Z_FINISH)) { + if (s->status == FINISH_STATE && flush != Z_FINISH) { ERR_RETURN(strm, Z_STREAM_ERROR); } if (strm->avail_out == 0) ERR_RETURN(strm, Z_BUF_ERROR);