[Qemu-devel] [PATCH] qemu-io: Fix warnings from static code analysis

[Stefan Weil <sw@weilnetz.de>]

Smatch complains about several global symbols which should be local.

Add the missing 'static' attributes and move the 'extern' declaration
of variable qemuio_misalign to qemu-io.h. This variable also changes
the type from 'int' to 'bool' which better fits documents its use.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
---
 include/qemu-io.h |    2 ++
 qemu-io-cmds.c    |    2 +-
 qemu-io.c         |    7 +++----
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/qemu-io.h b/include/qemu-io.h
index 7e7c07c..5d6006f 100644
--- a/include/qemu-io.h
+++ b/include/qemu-io.h
@@ -38,6 +38,8 @@ typedef struct cmdinfo {
     helpfunc_t  help;
 } cmdinfo_t;
 
+extern bool qemuio_misalign;
+
 bool qemuio_command(BlockDriverState *bs, const char *cmd);
 
 void qemuio_add_command(const cmdinfo_t *ci);
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index f1de24c..fb1db53 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -16,7 +16,7 @@
 
 #define CMD_NOFILE_OK   0x01
 
-int qemuio_misalign;
+bool qemuio_misalign;
 
 static cmdinfo_t *cmdtab;
 static int ncmds;
diff --git a/qemu-io.c b/qemu-io.c
index fc38608..2d119c2 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -24,10 +24,9 @@
 
 #define CMD_NOFILE_OK   0x01
 
-char *progname;
+static char *progname;
 
-BlockDriverState *qemuio_bs;
-extern int qemuio_misalign;
+static BlockDriverState *qemuio_bs;
 
 /* qemu-io commands passed using -c */
 static int ncmdline;
@@ -408,7 +407,7 @@ int main(int argc, char **argv)
             readonly = 1;
             break;
         case 'm':
-            qemuio_misalign = 1;
+            qemuio_misalign = true;
             break;
         case 'g':
             growable = 1;
-- 
1.7.10.4