Re: [Qemu-devel] [PATCH] monitor: print message when using 'help' with an unknown command

[Markus Armbruster <armbru@redhat.com>]

You neglected to cc: maintainers.  Cc'ing them increases the odds your
patch will be noticed and picked up.  You can use
scripts/get_maintainer.pl to find maintainers.  You don't have to do
anything for this patch; it got noticed anyway.

David, this is yours :)

Collin Walling <walling@linux.ibm.com> writes:

> When typing 'help' followed by an unknown command, QEMU will
> not print anything to the command line to let the user know
> they typed a bad command. Let's fix this by printing a message
> to the monitor when this happens. For example:
>
>     (qemu) help xyz
>     unknown command: 'xyz'
>
> Reported-by: Stefan Zimmermann <stzi@linux.ibm.com>
> Signed-off-by: Collin Walling <walling@linux.ibm.com>
> ---
>  monitor.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/monitor.c b/monitor.c
> index 7af1f18..7942f9f 100644
> --- a/monitor.c
> +++ b/monitor.c
> @@ -1034,9 +1034,12 @@ static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
>              } else {
>                  help_cmd_dump_one(mon, cmd, args, arg_index);
>              }
> -            break;
> +            return;
>          }
>      }
> +
> +    /* Entry not found */
> +    monitor_printf(mon, "unknown command: '%s'\n", args[arg_index]);
>  }
>  
>  static void help_cmd(Monitor *mon, const char *name)