[U-Boot] drivers/core/read.c:64:44: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Simon Glass sjg at chromium.org
Thu Sep 28 12:40:04 UTC 2017


Hi,

On 24 September 2017 at 20:14, Simon Glass <sjg at chromium.org> wrote:
> +Bin
>
> Hi Heinrich,
>
> On 21 September 2017 at 05:11, Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>> Hello Simon,
>>
>> sandbox_defconfig has
>>
>> arch/sandbox/include/asm/types.h:60: typedef u32 phys_addr_t;
>>
>> even if building on a 64bit machine.
>>
>> This results in a warning
>>
>>   CC      drivers/demo/demo-uclass.o
>> drivers/core/read.c: In function ‘dev_read_addr_ptr’:
>> drivers/core/read.c:64:44: warning: cast to pointer from integer of
>> different size [-Wint-to-pointer-cast]
>>   return (addr == FDT_ADDR_T_NONE) ? NULL : (void *)addr;
>>
>> Why don't we set phys_addr_t according to the host architecture?
>
> This is because sandbox uses 32-bit address internally, at least that
> was my intention. The sandbox architecture does not mirror its host,
> but tries to define it own memory model.
>
> This above line should use map_sysmem() to convert the address to a pointer.

I sent:

http://patchwork.ozlabs.org/patch/819567/

Regards,
Simon


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