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Re: [PATCH] x86/boot: Use C99 types for integers


  • To: Frediano Ziglio <frediano.ziglio@xxxxxxxxx>
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Mon, 2 Sep 2024 11:16:51 +0100
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  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Jan Beulich <jbeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Delivery-date: Mon, 02 Sep 2024 10:16:59 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 29/08/2024 2:42 pm, Frediano Ziglio wrote:
> On Thu, Aug 29, 2024 at 1:07 PM Andrew Cooper <andrew.cooper3@xxxxxxxxxx> 
> wrote:
>> On 29/08/2024 12:52 pm, Frediano Ziglio wrote:
>>> diff --git a/xen/arch/x86/boot/defs.h b/xen/arch/x86/boot/defs.h
>>> index 239b9f8716..ee1a4da6af 100644
>>> --- a/xen/arch/x86/boot/defs.h
>>> +++ b/xen/arch/x86/boot/defs.h
>>> @@ -57,7 +57,7 @@ typedef u16 uint16_t;
>>>  typedef u32 uint32_t;
>>>  typedef u64 uint64_t;
>>>
>>> -#define U16_MAX              ((u16)(~0U))
>>> +#define UINT16_MAX   ((uint16_t)(~0U))
>>>  #define UINT_MAX     (~0U)
>>>
>>>  #endif /* __BOOT_DEFS_H__ */
>> I'm happy with the change in principle, but could we see about dropping
>> defs.h entirely?  For example, we've already got both of these UINT
>> constants in types.h
>>
>> Since this was written, we've got rather better about cleaning up
>> xen/types.h, and extracting macros into xen/macros.h
>>
>> I think there's a good chance that the regular headers can now be used
>> directly, or with minor tweaking.
>>
> I tried, it gave a huge bunch of errors.
> I think it can be done in a later follow-up.

Ok fine.

Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

However, doesn't this mean we can drop the block of typedefs in the
context above?  Happy to fold that in on commit.

~Andrew



 


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