Re: [PATCH] memory: renesas-rpc-if: Silence clang warning

From: Krzysztof Kozlowski
Date: Mon Nov 22 2021 - 04:32:29 EST


On 22/11/2021 09:46, Lad, Prabhakar wrote:
> Hi Geert,
>
> Thank you for the review.
>
> On Mon, Nov 22, 2021 at 7:50 AM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
>>
>> Hi Prabhakar,
>>
>> On Sun, Nov 21, 2021 at 7:05 PM Lad Prabhakar
>> <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> wrote:
>>> This patch silences the following clang warning:
>>>
>>> | drivers/memory/renesas-rpc-if.c:253:14: warning: cast to smaller integer
>>> | type 'enum rpcif_type' from 'const void *' [-Wvoid-pointer-to-enum-cast]
>>> | rpc->type = (enum rpcif_type)of_device_get_match_data(dev);
>>> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>> Fixes: b04cc0d912eb8 ("memory: renesas-rpc-if: Add support for RZ/G2L")
>>> Reported-by: kernel test robot <lkp@xxxxxxxxx>
>>> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>>
>> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>>
>>> --- a/drivers/memory/renesas-rpc-if.c
>>> +++ b/drivers/memory/renesas-rpc-if.c
>>> @@ -250,7 +250,7 @@ int rpcif_sw_init(struct rpcif *rpc, struct device *dev)
>>> return PTR_ERR(rpc->dirmap);
>>> rpc->size = resource_size(res);
>>>
>>> - rpc->type = (enum rpcif_type)of_device_get_match_data(dev);
>>> + rpc->type = (enum rpcif_type)(uintptr_t)of_device_get_match_data(dev);
>>
>> While correct, the cast to "enum rpcif_type" is not stricly needed anymore.
>>
> Agreed.
>
> @Krzysztof, let me know if you want me to resend the patch with the
> cast to "enum rpcif_type" dropped.

I can fix it when applying, thanks!


Best regards,
Krzysztof