> -----Original Message----- > From: Marc Zyngier [mailto:marc.zyngier@xxxxxxx] > Sent: Thursday, November 05, 2015 9:36 AM > To: Gabriele Paoloni; majun (F); Thomas Gleixner; Jiang Liu; Jason > Cooper > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; > linux-kernel@xxxxxxxxxxxxxxx > Subject: Re: [PATCH RFC 7/7] irqchip: [Example] dummy wired > interrupt/MSI bridge driver > > On 05/11/15 08:25, Gabriele Paoloni wrote: > > Hi Marc > > > >> -----Original Message----- > >> From: linux-pci-owner@xxxxxxxxxxxxxxx [mailto:linux-pci- > owner@xxxxxxxxxxxxxxx] > >> On Behalf Of Marc Zyngier > >> Sent: 04 November 2015 09:04 > >> To: majun (F); Thomas Gleixner; Jiang Liu; Jason Cooper > >> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; > linux- > >> kernel@xxxxxxxxxxxxxxx > >> Subject: Re: [PATCH RFC 7/7] irqchip: [Example] dummy wired > interrupt/MSI > >> bridge driver > >> > >> On 04/11/15 08:00, majun (F) wrote: > > [...] > > >>> I think,for a interrupt controller, msichip driver initialization > maybe is > >> too late > >>> for some devices which connect to this irqchip if we use > >> module_platform_driver. > >> > >> That's a consequence of this design. This is why I insisted on the > fact > >> that this is currently avoided by using deferred probe in drivers, > and > > > > Mmm using te deferred probe would mean to rework all the drivers of > the > > potential devices connected to mbi-gen...would that be > sustainable/acceptable? > > I'm tempted to reply "Not my problem". Or rather, not a problem I'm > trying to solve right now (or any time soon). > > I'm pretty sure that sprinkling -EPROBE_DEFER on all possible drivers > will result in a resounding NAK, which is is why I suggested that > someone with a vested interest dedicates some quality time helping > those > who are trying to solve this issue for good. Yes you're right, makes perfect sense > > >> that it should be solved by having a probe order. Either way, this > is > >> not something that we can solve at that level (see the multiple > proposal > >> for this on the various lists). > > > > Could you point me to the relevant discussions for this...? > > Google is, as always, your dearest friend. But here you go: > > - LWN has some quality coverage of the KS discussions (assuming you're > a > subscriber, otherwise you'll have to wait for another week): > http://lwn.net/Articles/662820/ > > - There is also Tomeu Vizoso's series, which itself builds upon other > previous attempts at solving this: https://lwn.net/Articles/658690/ > Great, many thanks for pointing them out. I'll look into these. Thanks again Gab > Thanks, > > M. > -- > Jazz is not dead. It just smells funny... ?韬{.n?????%??檩??w?{.n???{炳???骅w* jg????????G??⒏ ⒎?:+v???????? ????＂??????
