[Qemu-devel] [PATCH] fix format string warnings in block-qcow2.c

[Christoph Hellwig <hch@lst.de>]

Recent patches added two compiler warnings about the format string
usage in qcow_read_extensions.  One is printing a uint64_t using
%lu which is incorrect on many platforms as it can be a unsigned
long long, the second one is printing the result of sizeof as
%lu, but it is a size_t so it needs to be printed using %zu.


Signed-off-by: Christoph Hellwig <hch@lst.de>

Index: qemu/block-qcow2.c
===================================================================
--- qemu.orig/block-qcow2.c	2009-03-28 19:43:58.494882416 +0100
+++ qemu/block-qcow2.c	2009-03-28 19:48:02.766981793 +0100
@@ -223,8 +223,8 @@ static int qcow_read_extensions(BlockDri
 #endif
 
         if (bdrv_pread(s->hd, offset, &ext, sizeof(ext)) != sizeof(ext)) {
-            fprintf(stderr, "qcow_handle_extension: ERROR: pread fail from offset %lu\n",
-                    offset);
+            fprintf(stderr, "qcow_handle_extension: ERROR: pread fail from offset %llu\n",
+                    (unsigned long long)offset);
             return 1;
         }
         be32_to_cpus(&ext.magic);
@@ -240,7 +240,7 @@ static int qcow_read_extensions(BlockDri
         case QCOW_EXT_MAGIC_BACKING_FORMAT:
             if (ext.len >= sizeof(bs->backing_format)) {
                 fprintf(stderr, "ERROR: ext_backing_format: len=%u too large"
-                        " (>=%lu)\n",
+                        " (>=%zu)\n",
                         ext.len, sizeof(bs->backing_format));
                 return 2;
             }