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Re: [Qemu-devel] [PATCH v2 3/4] util/cacheinfo.c: Use uintptr_t instead

From: Richard Henderson
Subject: Re: [Qemu-devel] [PATCH v2 3/4] util/cacheinfo.c: Use uintptr_t instead of unsigned long in AArch64 arch_cache_info()
Date: Thu, 2 May 2019 09:31:21 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

On 5/2/19 1:26 AM, Thomas Huth wrote:
>> @@ -107,7 +107,7 @@ static void sys_cache_info(int *isize, int *dsize)
>>  static void arch_cache_info(int *isize, int *dsize)
>>  {
>>      if (*isize == 0 || *dsize == 0) {
>> -        unsigned long ctr;
>> +        uintptr_t ctr;
> Looking at the whole function, is uintptr_t really the right type to use
> here? ctr does not seem to contain the value of a pointer variable, so
> this looks wrong to me...
> Do you get a compiler warning here? If so, how does it look like?
> Anyway, I think it would be better to use a uint64_t or uint32_t type
> here instead if possible?

uint64_t is the proper type to use with MRS.


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