If the user specifies image format through driver-specific options, The
format probing should be prohibited and the warning message should not
be printed.
e.g.:
$ qemu-system-x86_64 ... -drive file.file.filename=disk0.raw,file.driver=raw ...
WARNING: Image format was not specified for 'disk0.raw' and probing guessed raw.
Automatically detecting the format is dangerous for raw images, ...
Signed-off-by: Lin Ma <lma@suse.com>
---
blockdev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/blockdev.c b/blockdev.c
index 29d569a24e..ef4c167235 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -529,6 +529,8 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
goto early_err;
}
qdict_put_str(bs_opts, "driver", buf);
+ } else if (qdict_haskey(bs_opts, "file.driver")) {
+ qdict_put_str(bs_opts, "driver", qdict_get_str(bs_opts, "file.driver"));
}
on_write_error = BLOCKDEV_ON_ERROR_ENOSPC;
--
2.15.1