From 2a2d8e94ddc75c2c8d456e9163aa5dac510badcf Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Sat, 9 Oct 2021 09:28:21 -0600
Subject: lz4: Use a private header for U-Boot

At present U-Boot has a header file called lz4.h for its own use. If the
host has its own lz4 header file installed (e.g. from the 'liblz4-dev'
package) then host builds will use that instead.

Move the U-Boot file into its own directory, as is done with various
other headers with the same problem.

Signed-off-by: Simon Glass <sjg@chromium.org>
---
 cmd/unlz4.c          |  2 +-
 common/image.c       |  2 +-
 include/lz4.h        | 24 ------------------------
 include/u-boot/lz4.h | 24 ++++++++++++++++++++++++
 lib/lz4_wrapper.c    |  2 +-
 test/compression.c   |  2 +-
 6 files changed, 28 insertions(+), 28 deletions(-)
 delete mode 100644 include/lz4.h
 create mode 100644 include/u-boot/lz4.h

diff --git a/cmd/unlz4.c b/cmd/unlz4.c
index 323ab46717..5f20838e89 100644
--- a/cmd/unlz4.c
+++ b/cmd/unlz4.c
@@ -7,7 +7,7 @@
 #include <common.h>
 #include <command.h>
 #include <env.h>
-#include <lz4.h>
+#include <u-boot/lz4.h>
 
 static int do_unlz4(struct cmd_tbl *cmdtp, int flag, int argc,
 		    char *const argv[])
diff --git a/common/image.c b/common/image.c
index 5b77113bea..3fa60b5827 100644
--- a/common/image.c
+++ b/common/image.c
@@ -61,7 +61,6 @@ DECLARE_GLOBAL_DATA_PTR;
 #include <display_options.h>
 #include <gzip.h>
 #include <image.h>
-#include <lz4.h>
 #include <imximage.h>
 #include <relocate.h>
 #include <linux/lzo.h>
@@ -71,6 +70,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #include <lzma/LzmaDec.h>
 #include <lzma/LzmaTools.h>
 #include <u-boot/crc.h>
+#include <u-boot/lz4.h>
 
 static const table_entry_t uimage_arch[] = {
 	{	IH_ARCH_INVALID,	"invalid",	"Invalid ARCH",	},
diff --git a/include/lz4.h b/include/lz4.h
deleted file mode 100644
index 1276fb98a3..0000000000
--- a/include/lz4.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* 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/include/u-boot/lz4.h b/include/u-boot/lz4.h
new file mode 100644
index 0000000000..1276fb98a3
--- /dev/null
+++ b/include/u-boot/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 cdbcd05bd4..ebcb5c09a2 100644
--- a/lib/lz4_wrapper.c
+++ b/lib/lz4_wrapper.c
@@ -6,10 +6,10 @@
 #include <common.h>
 #include <compiler.h>
 #include <image.h>
-#include <lz4.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <asm/unaligned.h>
+#include <u-boot/lz4.h>
 
 static u16 LZ4_readLE16(const void *src)
 {
diff --git a/test/compression.c b/test/compression.c
index 4cd1be564f..26d3c80fb5 100644
--- a/test/compression.c
+++ b/test/compression.c
@@ -9,11 +9,11 @@
 #include <gzip.h>
 #include <image.h>
 #include <log.h>
-#include <lz4.h>
 #include <malloc.h>
 #include <mapmem.h>
 #include <asm/io.h>
 
+#include <u-boot/lz4.h>
 #include <u-boot/zlib.h>
 #include <bzlib.h>
 
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