Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-12 Thread Max Staudt
On 08/12/2019 05:01 PM, Bartlomiej Zolnierkiewicz wrote: >> Unfortunately, pata_buddha_exit() is void, and thus can't fail. According to >> Documentation/kernel-hacking/hacking.rst this is by design. > > You are of course right and the example code is broken > (+ I need more caffeine). Hey! That

Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-12 Thread Bartlomiej Zolnierkiewicz
On 8/12/19 4:26 PM, Max Staudt wrote: > On 08/12/2019 02:15 PM, Bartlomiej Zolnierkiewicz wrote: >>> What's a good way to do that, given that we now have module_exit()> defined >>> and an exit function is void? >> >> What about something like this: >> >> static bool xsurf_present; >> ... >> stat

Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-12 Thread Max Staudt
On 08/12/2019 02:15 PM, Bartlomiej Zolnierkiewicz wrote: >> What's a good way to do that, given that we now have module_exit()> defined >> and an exit function is void? > > What about something like this: > > static bool xsurf_present; > ... > static int __init pata_buddha_late_init(void) > ...

Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-12 Thread Bartlomiej Zolnierkiewicz
On 8/12/19 12:55 PM, Max Staudt wrote: > Hi Bartlomiej, > > Thanks for your feedback! Hi Max, > On 08/12/2019 12:42 PM, Bartlomiej Zolnierkiewicz wrote: >> >> ide/buddha driver cannot be unloaded currently (it lacks module_exit()). >> >> [... snip ...] >> >> It should work exactly like the old

Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-12 Thread Max Staudt
Hi Bartlomiej, Thanks for your feedback! On 08/12/2019 12:42 PM, Bartlomiej Zolnierkiewicz wrote: > > ide/buddha driver cannot be unloaded currently (it lacks module_exit()). > > [... snip ...] > > It should work exactly like the old code in case of X-Surf, > what do we need to release? So

Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-12 Thread Bartlomiej Zolnierkiewicz
On 8/11/19 9:28 PM, Max Staudt wrote: > Replying to my own patch with two more questions: > > > On 08/11/2019 05:36 PM, Max Staudt wrote: >> -/* allocate host */ >> -host = ata_host_alloc(&z->dev, nr_ports); > > Actually, this is an issue even the existing pata_buddha h

Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-11 Thread Max Staudt
Replying to my own patch with two more questions: On 08/11/2019 05:36 PM, Max Staudt wrote: > - /* allocate host */ > - host = ata_host_alloc(&z->dev, nr_ports); Actually, this is an issue even the existing pata_buddha has: ata_host_alloc() will dev_set_drvdata(dev, host

Re: [PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-11 Thread Max Staudt
Hi all, Thank you for your reviews. I hope this patch fixes all issues that have been raised. In case I've missed something, please let me know. Unfortunately I can't test the X-Surf part, as I don't own that board. I would be grateful for extra careful review of that part. Max

[PATCH v4] ata/pata_buddha: Probe via modalias instead of initcall

2019-08-11 Thread Max Staudt
Up until now, the pata_buddha driver would only check for cards on initcall time. Now, the kernel will call its probe function as soon as a compatible card is detected. v4: Cleap up pata_buddha_probe() by using ent->driver_data, Support X-Surf via late_initcall() v3: Clean up devm_*, implemen