Add a header file to house the lz4 compression function. Add a comment while we are here, since it not even clear from the name what the function actuall does.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v3: None Changes in v2: None
common/image.c | 1 + include/common.h | 3 --- include/lz4.h | 24 ++++++++++++++++++++++++ lib/lz4_wrapper.c | 1 + test/compression.c | 1 + 5 files changed, 27 insertions(+), 3 deletions(-) create mode 100644 include/lz4.h
diff --git a/common/image.c b/common/image.c index 992ebbad51..1c8ac2df70 100644 --- a/common/image.c +++ b/common/image.c @@ -20,6 +20,7 @@
#include <gzip.h> #include <image.h> +#include <lz4.h> #include <mapmem.h>
#if IMAGE_ENABLE_FIT || IMAGE_ENABLE_OF_LIBFDT diff --git a/include/common.h b/include/common.h index f433db17ae..1e77ed393e 100644 --- a/include/common.h +++ b/include/common.h @@ -292,9 +292,6 @@ void wait_ticks (unsigned long); ulong usec2ticks (unsigned long usec); ulong ticks2usec (unsigned long ticks);
-/* lib/lz4_wrapper.c */ -int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn); - /* lib/uuid.c */ #include <uuid.h>
diff --git a/include/lz4.h b/include/lz4.h new file mode 100644 index 0000000000..1276fb98a3 --- /dev/null +++ b/include/lz4.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2019 Google LLC + */ + +#ifndef __LZ4_H +#define __LZ4_H + +/** + * ulz4fn() - Decompress LZ4 data + * + * @src: Source data to decompress + * @srcn: Length of source data + * @dst: Destination for uncompressed data + * @dstn: Returns length of uncompressed data + * @return 0 if OK, -EPROTONOSUPPORT if the magic number or version number are + * not recognised or independent blocks are used, -EINVAL if the reserved + * fields are non-zero, or input is overrun, -EENOBUFS if the destination + * buffer is overrun, -EEPROTO if the compressed data causes an error in + * the decompression algorithm + */ +int ulz4fn(const void *src, size_t srcn, void *dst, size_t *dstn); + +#endif diff --git a/lib/lz4_wrapper.c b/lib/lz4_wrapper.c index 1c68e67452..1e1e8d5085 100644 --- a/lib/lz4_wrapper.c +++ b/lib/lz4_wrapper.c @@ -6,6 +6,7 @@ #include <common.h> #include <compiler.h> #include <image.h> +#include <lz4.h> #include <linux/kernel.h> #include <linux/types.h>
diff --git a/test/compression.c b/test/compression.c index 08fef59d0a..48dccc0e89 100644 --- a/test/compression.c +++ b/test/compression.c @@ -7,6 +7,7 @@ #include <bootm.h> #include <command.h> #include <gzip.h> +#include <lz4.h> #include <malloc.h> #include <mapmem.h> #include <asm/io.h>