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Date: Wed, 24 Dec 2014 17:51:02 +0800
From: Gonglei <arei.gonglei@huawei.com>
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Subject: Re: [Qemu-devel] '-usb' regressed by 49d2e648 ("machine: remove
 qemu_machine_opts global list")
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To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>, qemu devel list <qemu-devel@nongnu.org>, Marcel Apfelbaum <marcel.a@redhat.com>

On 2014/12/24 17:30, Paolo Bonzini wrote:

> 
> 
> On 23/12/2014 23:12, Laszlo Ersek wrote:
>> Apologies if this problem is known. After building qemu at ab0302ee:
>>
>> $ qemu-system-x86_64 -usb
>>
>> qemu-system-x86_64: util/qemu-option.c:387: qemu_opt_get_bool_helper: Assertion `opt->desc && opt->desc->type == QEMU_OPT_BOOL' failed.
> 
> Does this work?
> 
> diff --git a/util/qemu-option.c b/util/qemu-option.c
> index a708241..4f1f86a 100644
> --- a/util/qemu-option.c
> +++ b/util/qemu-option.c
> @@ -384,7 +384,7 @@ static bool qemu_opt_get_bool_helper(QemuOpts *opts,
> const char *name,
>          }
>          return ret;
>      }
> -    assert(opt->desc && opt->desc->type == QEMU_OPT_BOOL);
> +    assert(!opt->desc || opt->desc->type == QEMU_OPT_BOOL);
>      ret = opt->value.boolean;
>      if (del) {
>          qemu_opt_del_all(opts, name);
> @@ -420,7 +420,7 @@ static uint64_t qemu_opt_get_number_helper(QemuOpts
> *opts, const char *name,
>          }
>          return ret;
>      }
> -    assert(opt->desc && opt->desc->type == QEMU_OPT_NUMBER);
> +    assert(!opt->desc || opt->desc->type == QEMU_OPT_NUMBER);
>      ret = opt->value.uint;
>      if (del) {
>          qemu_opt_del_all(opts, name);
> @@ -457,7 +457,7 @@ static uint64_t qemu_opt_get_size_helper(QemuOpts
> *opts, const char *name,
>          }
>          return ret;
>      }
> -    assert(opt->desc && opt->desc->type == QEMU_OPT_SIZE);
> +    assert(!opt->desc || opt->desc->type == QEMU_OPT_SIZE);
>      ret = opt->value.uint;
>      if (del) {
>          qemu_opt_del_all(opts, name);
> 
> Paolo
> 

Nice~

Regards,
-Gonglei