Re: [PATCH 2/6] mmc: sdhci: add __sdhci_execute_tuning() to header

Adrian Hunter
2023-09-25T10:32:14Z

On 25/09/23 13:23, Xi Ruoyao wrote:
> On Mon, 2023-09-25 at 13:21 +0300, Adrian Hunter wrote:
>> On 22/09/23 04:49, Drew Fustini wrote:
>>> Expose __sdhci_execute_tuning() so that it can be called from the
>>> mmc host controller drivers.
>>>
>>> In the sdhci-of-dwcmshc driver, sdhci_dwcmshc_th1520_ops sets
>>> platform_execute_tuning to th1520_execute_tuning(). That function has
>>> to manipulate phy registers before tuning can be performed. To avoid
>>> copying the code verbatim from __sdhci_execute_tuning() into
>>> th1520_execute_tuning(), make it possible for __sdhci_execute_tuning()
>>> to be called from sdhci-of-dwcmshc.
>>>
>>> Signed-off-by: Drew Fustini <dfustini@baylibre.com>
>>> ---
>>>  drivers/mmc/host/sdhci.c | 2 +-
>>>  drivers/mmc/host/sdhci.h | 1 +
>>>  2 files changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
>>> index ff41aa56564e..fd607058d176 100644
>>> --- a/drivers/mmc/host/sdhci.c
>>> +++ b/drivers/mmc/host/sdhci.c
>>> @@ -2841,7 +2841,7 @@ void sdhci_send_tuning(struct sdhci_host *host, u32 opcode)
>>>  }
>>>  EXPORT_SYMBOL_GPL(sdhci_send_tuning);
>>>
>>> -static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode)
>>> +int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode)
>>
>> Also need
>> EXPORT_SYMBOL_GPL(__sdhci_execute_tuning);
>>
>>>  {
>>>   int i;
>
> By the way should we rename this function? I think
> "__sdhci_execute_tuning" vs "sdhci_execute_tuning" might be confusing
> when we export both.
>

'name()' and '__name()' is not a particularly rare paradigm in the kernel,
so it seems ok.