Re: [Qemu-block] [Qemu-devel] [PATCH v3 09/12] tests/libqos/pci: Clean up string interpolation into QMP input

[Stefan Hajnoczi]

On Tue, Jul 25, 2017 at 04:15:20PM -0500, Eric Blake wrote:
> @@ -419,19 +420,18 @@ static void test_ivshmem_server_irq(void)
>  static void test_ivshmem_hotplug(void)
>  {
>      const char *arch = qtest_get_arch();
> -    gchar *opts;
> +    QObject *extra_args = qobject_from_jsonf("{ 'shm': '%s', 'size': '1M' }",
> +                                             tmpshm);

Is there a difference between:

  qobject_from_jsonf("{ 'shm': '%s' }", tmpshm);

and:

  qobject_from_jsonf("{ 'shm': %s }", tmpshm);

?

Below you use %s instead of '%s'.

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