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Re: [Qemu-devel] [PATCH 2/2] tests: Make acpid test compile


From: Juan Quintela
Subject: Re: [Qemu-devel] [PATCH 2/2] tests: Make acpid test compile
Date: Wed, 30 Aug 2017 12:51:23 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

Cedric Le Goater <address@hidden> wrote:
> On 08/23/2017 01:53 PM, Dr. David Alan Gilbert wrote:
>> * Juan Quintela (address@hidden) wrote:
>>> Compiler gets confused with the size of the struct, so move form
>>> g_new0() to g_malloc0().
>>>
>>> I *think* that the problem is in gcc (or glib for that matter), but
>>> the documentation of the g_new0 states that 1sts first argument is an
>>> struct type, and uint32_t is not an struct type.
>>>
>>> Signed-off-by: Juan Quintela <address@hidden>
>>> ---
>>>  tests/vmgenid-test.c | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/tests/vmgenid-test.c b/tests/vmgenid-test.c
>>> index 3d5c1c3615..032e1d465a 100644
>>> --- a/tests/vmgenid-test.c
>>> +++ b/tests/vmgenid-test.c
>>> @@ -67,7 +67,7 @@ static uint32_t acpi_find_vgia(void)
>>>      g_assert_cmpint(tables_nr, >, 0);
>>>  
>>>      /* get the addresses of the tables pointed by rsdt */
>>> -    tables = g_new0(uint32_t, tables_nr);
>>> +    tables = g_malloc0(sizeof(uint32_t) * tables_nr);
>> 
>> I think there's an easier fix for this I think;
>> try:
>> 
>> -    g_assert_cmpint(tables_nr, >, 0);
>> +    g_assert(tables_nr > 0);

I liked more the following one.


>
> I fixed that one with :
>
> @@ -40,7 +40,7 @@ static uint32_t acpi_find_vgia(void)
>      AcpiRsdpDescriptor rsdp_table;
>      uint32_t rsdt;
>      AcpiRsdtDescriptorRev1 rsdt_table;
> -    int tables_nr;
> +    uint32_t tables_nr;
>      uint32_t *tables;
>      AcpiTableHeader ssdt_table;
>      VgidTable vgid_table;


This make things work for me, so moving to this one.

Thanks, Juan.



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