Re: [Qemu-block] [Qemu-devel] [PATCH] blockdev: Print a warning for legacy drive options that belong to -device

[Paolo Bonzini]

On 10/05/2017 17:50, Thomas Huth wrote:
> We likely do not want to carry these legacy -drive options along forever.
> Let's emit a deprecation warning for the -drive options that have a
> replacement with the -device option, so that the (hopefully few) remaining
> users are aware of this and can adapt their scripts / behaviour.
> 
> Signed-off-by: Thomas Huth <address@hidden>
> ---
>  blockdev.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/blockdev.c b/blockdev.c
> index 4d8cded..87a025a 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -797,6 +797,9 @@ DriveInfo *drive_new(QemuOpts *all_opts, 
> BlockInterfaceType block_default_type)
>      const char *filename;
>      Error *local_err = NULL;
>      int i;
> +    const char *deprecated[] = {
> +        "serial", "trans", "secs", "heads", "cyls"
> +    };
>  
>      /* Change legacy command line options into QMP ones */
>      static const struct {
> @@ -880,6 +883,14 @@ DriveInfo *drive_new(QemuOpts *all_opts, 
> BlockInterfaceType block_default_type)
>                  "update your scripts.\n");
>      }
>  
> +    /* Other deprecated options */
> +    for (i = 0; i < ARRAY_SIZE(deprecated); i++) {
> +        if (qemu_opt_get(legacy_opts, deprecated[i]) != NULL) {
> +            error_report("'%s' is deprecated, please use the corresponding "
> +                         "option of '-device' instead", deprecated[i]);
> +        }
> +    }
> +
>      /* Media type */
>      value = qemu_opt_get(legacy_opts, "media");
>      if (value) {

This one should be deprecated too (separate patch if you prefer).

Paolo