[PULL,09/20] block/dmg: Declare a type definition for DMG uncompress function

Commit Message

Stefan Hajnoczi April 20, 2023, 12:09 p.m. UTC

From: Philippe Mathieu-Daudé <[e-mail]>

Introduce the BdrvDmgUncompressFunc type defintion. To emphasis
dmg_uncompress_bz2 and dmg_uncompress_lzfse are pointer to functions,
declare them using this new typedef.

Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
Message-id: [e-mail]
Signed-off-by: Stefan Hajnoczi <[e-mail]>
---
 block/dmg.h | 8 ++++----
 block/dmg.c | 7 ++-----
 2 files changed, 6 insertions(+), 9 deletions(-)

Patch

diff --git a/block/dmg.h b/block/dmg.h
index e488601b62..dcd6165e63 100644
--- a/block/dmg.h
+++ b/block/dmg.h
@@ -51,10 +51,10 @@  typedef struct BDRVDMGState {
     z_stream zstream;
 } BDRVDMGState;
 
-extern int (*dmg_uncompress_bz2)(char *next_in, unsigned int avail_in,
-                                 char *next_out, unsigned int avail_out);
+typedef int BdrvDmgUncompressFunc(char *next_in, unsigned int avail_in,
+                                  char *next_out, unsigned int avail_out);
 
-extern int (*dmg_uncompress_lzfse)(char *next_in, unsigned int avail_in,
-                                   char *next_out, unsigned int avail_out);
+extern BdrvDmgUncompressFunc *dmg_uncompress_bz2;
+extern BdrvDmgUncompressFunc *dmg_uncompress_lzfse;
 
 #endif
diff --git a/block/dmg.c b/block/dmg.c
index e10b9a2ba5..2769900359 100644
--- a/block/dmg.c
+++ b/block/dmg.c
@@ -31,11 +31,8 @@ 
 #include "qemu/memalign.h"
 #include "dmg.h"
 
-int (*dmg_uncompress_bz2)(char *next_in, unsigned int avail_in,
-                          char *next_out, unsigned int avail_out);
-
-int (*dmg_uncompress_lzfse)(char *next_in, unsigned int avail_in,
-                            char *next_out, unsigned int avail_out);
+BdrvDmgUncompressFunc *dmg_uncompress_bz2;
+BdrvDmgUncompressFunc *dmg_uncompress_lzfse;
 
 enum {
     /* Limit chunk sizes to prevent unreasonable amounts of memory being used