1 files changed, 79 insertions, 0 deletions
diff --git a/tools/mtd-utils/patches/101-ubifs-optional_lzo.patch b/tools/mtd-utils/patches/101-ubifs-optional_lzo.patch
new file mode 100644
index 000000000..35a7cd86f
--- /dev/null
+++ b/tools/mtd-utils/patches/101-ubifs-optional_lzo.patch
@@ -0,0 +1,79 @@
+diff --git a/mkfs.ubifs/Makefile b/mkfs.ubifs/Makefile
+index a678b0a..919ce89 100644
+--- a/mkfs.ubifs/Makefile
++++ b/mkfs.ubifs/Makefile
+@@ -5,7 +5,7 @@ ALL_SOURCES=*.[ch] hashtable/*.[ch]
+ 
+ TARGETS = mkfs.ubifs
+ 
+-LDLIBS_mkfs.ubifs = -lz -llzo2 -lm -luuid -L../ubi-utils/ -lubi
++LDLIBS_mkfs.ubifs = -lz $(if,$(NO_LZO),,-llzo2) -lm -luuid -L../ubi-utils/ -lubi
+ 
+ include ../common.mk
+ 
+diff --git a/mkfs.ubifs/compr.c b/mkfs.ubifs/compr.c
+index e378c5d..0208f80 100644
+--- a/mkfs.ubifs/compr.c
++++ b/mkfs.ubifs/compr.c
+@@ -83,6 +83,17 @@ static int zlib_deflate(void *in_buf, size_t in_len, void *out_buf,
+ 	return 0;
+ }
+ 
++static int no_compress(void *in_buf, size_t in_len, void *out_buf,
++		       size_t *out_len)
++{
++	memcpy(out_buf, in_buf, in_len);
++	*out_len = in_len;
++	return 0;
++}
++
++
++#if CONFIG_UBIFS_LZO
++
+ static int lzo_compress(void *in_buf, size_t in_len, void *out_buf,
+ 			size_t *out_len)
+ {
+@@ -101,14 +112,16 @@ static int lzo_compress(void *in_buf, size_t in_len, void *out_buf,
+ 	return 0;
+ }
+ 
+-static int no_compress(void *in_buf, size_t in_len, void *out_buf,
+-		       size_t *out_len)
++#else
++
++static int lzo_compress(void *in_buf, size_t in_len, void *out_buf,
++			size_t *out_len)
+ {
+-	memcpy(out_buf, in_buf, in_len);
+-	*out_len = in_len;
+-	return 0;
++	return -1;
+ }
+ 
++#endif
++
+ static char *zlib_buf;
+ 
+ static int favor_lzo_compress(void *in_buf, size_t in_len, void *out_buf,
+@@ -195,9 +208,11 @@ int compress_data(void *in_buf, size_t in_len, void *out_buf, size_t *out_len,
+ 
+ int init_compression(void)
+ {
++#ifdef CONFIG_UBIFS_LZO
+ 	lzo_mem = malloc(LZO1X_999_MEM_COMPRESS);
+ 	if (!lzo_mem)
+ 		return -1;
++#endif
+ 
+ 	zlib_buf = malloc(UBIFS_BLOCK_SIZE * WORST_COMPR_FACTOR);
+ 	if (!zlib_buf) {
+@@ -211,7 +226,9 @@ int init_compression(void)
+ void destroy_compression(void)
+ {
+ 	free(zlib_buf);
++#ifdef CONFIG_UBIFS_LZO
+ 	free(lzo_mem);
++#endif
+ 	if (errcnt)
+ 		fprintf(stderr, "%llu compression errors occurred\n", errcnt);
+ }