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Groups > linux.kernel > #1239587
| From | Rob Herring <robh@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3 13/13] scsi: ufs: Add exynos ufs platform data |
| Date | 2015-10-05 16:20 +0200 |
| Message-ID | <qgeMq-1i4-7@gated-at.bofh.it> (permalink) |
| References | <qeJB0-1BQ-9@gated-at.bofh.it> <qeKdI-2A1-31@gated-at.bofh.it> <qg9jI-1RW-7@gated-at.bofh.it> <qg9Wr-2Qs-39@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, Oct 5, 2015 at 4:06 AM, Arnd Bergmann <arnd@arndb.de> wrote: > On Monday 05 October 2015 13:44:29 Alim Akhtar wrote: >> CCing Rob Herring, >> >> Hi Arnd, >> >> On 10/01/2015 04:59 PM, Arnd Bergmann wrote: >> > On Thursday 01 October 2015 18:46:34 kbuild test robot wrote: >> >> [auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore] >> >> >> >> config: x86_64-allmodconfig (attached as .config) >> >> reproduce: >> >> git checkout 6e153e3bf7c68b019e987c5a0ffadebd9c7d4fbb >> >> # save the attached .config to linux build tree >> >> make ARCH=x86_64 >> >> >> >> All error/warnings (new ones prefixed by >>): >> >> >> >>>> ERROR: "ufs_hba_exynos_ops" [drivers/scsi/ufs/ufshcd-pltfrm.ko] undefined! >> >> >> >> >> > >> > Ah, this seems to be a case of layering violation. It would be best to >> > restructure the code so that the exynos driver registers a platform_driver >> > by itself for the respective DT compatible string, and then calls >> > into the common code from its probe function, rather than having the >> > generic driver know about the specific backends. >> > >> > That approach will also make the generic driver more scalable as we >> > add further chip-specific variations, and matches what we do in other >> > drivers. >> > >> >> Looks like some discussions on ufs variant driver probe method happened >> here [1] few months back. >> [1]-> https://lkml.org/lkml/2015/6/3/180 > > Hmm, too bad we didn't catch it then, it's much more work to fix now. What you suggested is what is being implemented[1]. It is not merged yet. The core is a library and the platform specific parts create the driver. Rob [1] https://lkml.org/lkml/2015/9/2/364 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH v3 13/13] scsi: ufs: Add exynos ufs platform data Arnd Bergmann <arnd@arndb.de> - 2015-10-01 13:30 +0200
Re: [PATCH v3 13/13] scsi: ufs: Add exynos ufs platform data Alim Akhtar <alim.akhtar@samsung.com> - 2015-10-05 10:30 +0200
Re: [PATCH v3 13/13] scsi: ufs: Add exynos ufs platform data Arnd Bergmann <arnd@arndb.de> - 2015-10-05 11:10 +0200
Re: [PATCH v3 13/13] scsi: ufs: Add exynos ufs platform data Rob Herring <robh@kernel.org> - 2015-10-05 16:20 +0200
Re: [PATCH v3 13/13] scsi: ufs: Add exynos ufs platform data Arnd Bergmann <arnd@arndb.de> - 2015-10-05 16:50 +0200
Re: [PATCH v3 13/13] scsi: ufs: Add exynos ufs platform data Alim Akhtar <alim.akhtar@gmail.com> - 2015-10-05 17:30 +0200
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