Change-Id: Ieba9eeca9028766826dbd404aba63f3cb5936eb8
Signed-off-by: Kelvin Zhang <[email protected]>
---
 lib/compressor.c         | 4 ++--
 lib/compressor.h         | 8 ++++----
 lib/compressor_liblzma.c | 4 ++--
 lib/compressor_lz4.c     | 4 ++--
 lib/compressor_lz4hc.c   | 4 ++--
 5 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/lib/compressor.c b/lib/compressor.c
index ad12cdf..eaf402a 100644
--- a/lib/compressor.c
+++ b/lib/compressor.c
@@ -22,8 +22,8 @@ static struct erofs_compressor *compressors[] = {
 #endif
 };
 
-int erofs_compress_destsize(struct erofs_compress *c,
-                           void *src, unsigned int *srcsize,
+int erofs_compress_destsize(const struct erofs_compress *c,
+                           const void *src, unsigned int *srcsize,
                            void *dst, unsigned int dstsize)
 {
        unsigned int uncompressed_size;
diff --git a/lib/compressor.h b/lib/compressor.h
index aa85ae0..ed7edee 100644
--- a/lib/compressor.h
+++ b/lib/compressor.h
@@ -21,8 +21,8 @@ struct erofs_compressor {
        int (*exit)(struct erofs_compress *c);
        int (*setlevel)(struct erofs_compress *c, int compression_level);
 
-       int (*compress_destsize)(struct erofs_compress *c,
-                                void *src, unsigned int *srcsize,
+       int (*compress_destsize)(const struct erofs_compress *c,
+                                const void *src, unsigned int *srcsize,
                                 void *dst, unsigned int dstsize);
 };
 
@@ -45,8 +45,8 @@ extern struct erofs_compressor erofs_compressor_lz4;
 extern struct erofs_compressor erofs_compressor_lz4hc;
 extern struct erofs_compressor erofs_compressor_lzma;
 
-int erofs_compress_destsize(struct erofs_compress *c,
-                           void *src, unsigned int *srcsize,
+int erofs_compress_destsize(const struct erofs_compress *c,
+                           const void *src, unsigned int *srcsize,
                            void *dst, unsigned int dstsize);
 
 int erofs_compressor_setlevel(struct erofs_compress *c, int compression_level);
diff --git a/lib/compressor_liblzma.c b/lib/compressor_liblzma.c
index 40a05ef..637dfe4 100644
--- a/lib/compressor_liblzma.c
+++ b/lib/compressor_liblzma.c
@@ -18,8 +18,8 @@ struct erofs_liblzma_context {
        lzma_stream strm;
 };
 
-static int erofs_liblzma_compress_destsize(struct erofs_compress *c,
-                                          void *src, unsigned int *srcsize,
+static int erofs_liblzma_compress_destsize(const struct erofs_compress *c,
+                                          const void *src, unsigned int 
*srcsize,
                                           void *dst, unsigned int dstsize)
 {
        struct erofs_liblzma_context *ctx = c->private_data;
diff --git a/lib/compressor_lz4.c b/lib/compressor_lz4.c
index f6832be..4ebc758 100644
--- a/lib/compressor_lz4.c
+++ b/lib/compressor_lz4.c
@@ -12,8 +12,8 @@
 #define LZ4_DISTANCE_MAX 65535 /* set to maximum value by default */
 #endif
 
-static int lz4_compress_destsize(struct erofs_compress *c,
-                                void *src, unsigned int *srcsize,
+static int lz4_compress_destsize(const struct erofs_compress *c,
+                                const void *src, unsigned int *srcsize,
                                 void *dst, unsigned int dstsize)
 {
        int srcSize = (int)*srcsize;
diff --git a/lib/compressor_lz4hc.c b/lib/compressor_lz4hc.c
index fd801ab..7ddb253 100644
--- a/lib/compressor_lz4hc.c
+++ b/lib/compressor_lz4hc.c
@@ -13,8 +13,8 @@
 #define LZ4_DISTANCE_MAX 65535 /* set to maximum value by default */
 #endif
 
-static int lz4hc_compress_destsize(struct erofs_compress *c,
-                                  void *src, unsigned int *srcsize,
+static int lz4hc_compress_destsize(const struct erofs_compress *c,
+                                  const void *src, unsigned int *srcsize,
                                   void *dst, unsigned int dstsize)
 {
        int srcSize = (int)*srcsize;
-- 
2.34.1.173.g76aa8bc2d0-goog

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