Date: Mon, 03 Feb 2014 16:33:05 -0500 From: John Baldwin <jhb@freebsd.org> To: Ian Lepore <ian@freebsd.org> Cc: svn-src-head@freebsd.org, John-Mark Gurney <jmg@funkthat.com>, src-committers@freebsd.org, svn-src-all@freebsd.org Subject: Re: svn commit: r261424 - head/sys/dev/mmc Message-ID: <3325243.MZLnPn2Brt@ralph.baldwin.cx> In-Reply-To: <1391458059.13026.96.camel@revolution.hippie.lan> References: <201402030256.s132uNjk086555@svn.freebsd.org> <20140203170330.GC89104@funkthat.com> <1391458059.13026.96.camel@revolution.hippie.lan>
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On Monday, February 03, 2014 01:07:39 PM Ian Lepore wrote: > On Mon, 2014-02-03 at 09:03 -0800, John-Mark Gurney wrote: > > Ian Lepore wrote this message on Mon, Feb 03, 2014 at 02:56 +0000: > > > Author: ian > > > Date: Mon Feb 3 02:56:23 2014 > > > New Revision: 261424 > > > URL: http://svnweb.freebsd.org/changeset/base/261424 > > > > > > Log: > > > Sort the list. > > > > > > Modified: > > > head/sys/dev/mmc/mmc.c > > > > > > Modified: head/sys/dev/mmc/mmc.c > > > ======================================================================== > > > ====== --- head/sys/dev/mmc/mmc.c Mon Feb 3 02:52:07 2014 (r261423) > > > +++ head/sys/dev/mmc/mmc.c Mon Feb 3 02:56:23 2014 (r261424) > > > @@ -1756,10 +1756,11 @@ static driver_t mmc_driver = { > > > > > > }; > > > static devclass_t mmc_devclass; > > > > > > -DRIVER_MODULE(mmc, ti_mmchs, mmc_driver, mmc_devclass, NULL, NULL); > > > > > > DRIVER_MODULE(mmc, at91_mci, mmc_driver, mmc_devclass, NULL, NULL); > > > > > > -DRIVER_MODULE(mmc, sdhci_pci, mmc_driver, mmc_devclass, NULL, NULL); > > > > > > DRIVER_MODULE(mmc, sdhci_bcm, mmc_driver, mmc_devclass, NULL, NULL); > > > DRIVER_MODULE(mmc, sdhci_fdt, mmc_driver, mmc_devclass, NULL, NULL); > > > > > > -DRIVER_MODULE(mmc, sdhci_ti, mmc_driver, mmc_devclass, NULL, NULL); > > > > > > DRIVER_MODULE(mmc, sdhci_imx, mmc_driver, mmc_devclass, NULL, NULL); > > > > > > +DRIVER_MODULE(mmc, sdhci_pci, mmc_driver, mmc_devclass, NULL, NULL); > > > +DRIVER_MODULE(mmc, sdhci_ti, mmc_driver, mmc_devclass, NULL, NULL); > > > +DRIVER_MODULE(mmc, ti_mmchs, mmc_driver, mmc_devclass, NULL, NULL); > > > + > > > > Is there a reason we don't make mmc_driver/mmc_devclass global and put > > all of these defines in their respective file instead of poluting an MI > > file w/ MD info? > > I don't think that's an option. Part of what that macro does is create > metadata that says "this module contains a driver that is a child of bus > <whatever>" and I think for that to work right, it has to be in the > module itself, not elsewhere (at least in the .ko case; maybe it doesn't > matter when it's compiled into the kernel). No, it can be anywhere. It's not voodoo magic, it's just a struct and a SYSINIT. John-Mark's suggestion is correct (and I thought the same thing when I saw this commit). You just have to make mmc_driver global. You should make mmc_devclass as well for now. (Side note: the devclass argument to DRIVER_MODULE() is useless in 99.9% of the cases and should be axed entirely. The very few drivers that want to find their devclass can use devclass_find() at runtime instead.) Too bad cpp doesn't support macro overloading, then we could make that change seamlessly. :) -- John Baldwin
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