[PATCH RFC 02/13] mmc: meson-gx: fix deferred probing

[Sergey Shtylyov]

Hello!

On 4/2/23 8:58 PM, Sergey Shtylyov wrote:

[...]
 
>>> The driver overrides the error codes and IRQ0 returned by platform_get_irq()
>>> to -EINVAL, so if it returns -EPROBE_DEFER, the driver will fail the probe
>>> permanently instead of the deferred probing. Switch to propagating the error
>>> codes upstream. IRQ0 is no longer returned by platform_get_irq(), so we now
>>> can safely ignore it...
>>>
>>> Fixes: cbcaac6d7dd2 ("mmc: meson-gx-mmc: Fix platform_get_irq's error checking
>>> ")
>>> Signed-off-by: Sergey Shtylyov <s.shtylyov at omp.ru>
>>> Reviewed-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
>>> ---
>>> drivers/mmc/host/meson-gx-mmc.c | 4 ++--
>>> 1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
>>> index 8f36536cb1b6..c765653ee4d0 100644
>>> --- a/drivers/mmc/host/meson-gx-mmc.c
>>> +++ b/drivers/mmc/host/meson-gx-mmc.c
>>> @@ -1182,8 +1182,8 @@ static int meson_mmc_probe(struct platform_device *pdev)
>>> 	}
>>>
>>> 	host->irq = platform_get_irq(pdev, 0);
>>> -	if (host->irq <= 0) {
>>> -		ret = -EINVAL;
>>> +	if (host->irq < 0) {
>>> +		ret = host->irq;
>>> 		goto free_host;
>>> 	}
>>
>> Can I ask if this patch/series [0] has been superseded or forgotten or ??
> 
>    I'm sorry, I actually did forget to re-post this series, as asked by Ulf.
> Partly because the patch that this series depended on took about 4 months to
> hit the kernel and partly because I suspended my platform_get_irq() related
> work as I got into PATA development and struggling with a static analyzer's
> reports...
>    Also, the series doesn't seem superseded as all the patches still apply,
> sometimes with small offsets...
> 
>> The series it depended upon [1]
> 
>    That was a single patch. :-)
> 
>> appears to have been merged a year ago as I
>> can see ce753ad1549c ("platform: finally disallow IRQ0 in platform_get_irq()
>> and its ilk”) in upstream code.
> 
>    Not a whole year yet but 11 months surely... :-/
> 
>> I’ve had this patch in my testing kernel for
>> 12+ months now with no observable negative impacts so am wondering if it can
>> be resent and merged or I should drop the patch from my tree?
> 
>    It? You mean my fix patches, surely? Or you mean you care about patch #2
> only? Anyway, I need to find the time to refresh/repost it...

  Now that I'm on vacation, I have found the time -- see the v2 series here:

https://lore.kernel.org/all/20230608194519.10665-1-s.shtylyov@omp.ru/

[...]

MBR, Sergey