Re: [PATCH 3/4] crypto: sun8i-ce-cipher - use IS_ENABLED() checks for debugfs stats

Ovidiu Panait
2025-04-25T13:47:38Z

Hi,

On 4/25/25 4:30 PM, Corentin Labbe wrote:
> Le Fri, Apr 25, 2025 at 03:45:16PM +0300, Ovidiu Panait a écrit :
>> Add IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG) checks before the
>> fallback counter updates to make sure the code is not included when
>> debugfs statistics support is not enabled.
>>
>> Also, drop the existing ifdef guards, since 'struct sun8i_ce_alg_template'
>> is always defined, even with CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG disabled.
>>
>> Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com>
>> ---
>> .../allwinner/sun8i-ce/sun8i-ce-cipher.c | 46 ++++++++++++-------
>> 1 file changed, 30 insertions(+), 16 deletions(-)
>>
>> diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
>> index f03a8fa7bfa2..433cd18f0b5b 100644
>> --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
>> +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
>> @@ -34,22 +34,30 @@ static int sun8i_ce_cipher_need_fallback(struct skcipher_request *areq)
>>
...
>> @@ -101,9 +117,7 @@ static int sun8i_ce_cipher_fallback(struct skcipher_request *areq)
>> algt = container_of(alg, struct sun8i_ce_alg_template,
>> alg.skcipher.base);
>>
>> -#ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
>> algt->stat_fb++;
>> -#endif
>
> Hello
>
> You put IS_ENABLED everywhere, but here you remove it, why ?
> I think you forgot it.
>

This is already part of an IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG)
block, so no need to add an extra IS_ENABLED() check here. Just the
ifdef was dropped, as it was not really necessary.

Original code:

if (IS_ENABLED(CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG)) {
struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
struct sun8i_ce_alg_template *algt __maybe_unused;

algt = container_of(alg, struct sun8i_ce_alg_template,
alg.skcipher.base);

#ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
algt->stat_fb++;
#endif
}

Thanks,
Ovidiu

> Thanks
> Regards
>