| Message ID | 20220624155226.2889613-1-arnd@kernel.org |
|---|---|
| Headers | show |
| Series | phase out CONFIG_VIRT_TO_BUS | expand |
Hi Arnd! > If there are no more issues identified with this series, I'll merge it > through the asm-generic tree. The SCSI patches can also get merged > separately through the SCSI maintainers' tree if they prefer. I put patches 1 and 2 in scsi-staging to see if anything breaks...
On Tue, Jun 28, 2022 at 4:59 AM Martin K. Petersen <martin.petersen@oracle.com> wrote: > Hi Arnd! > > > If there are no more issues identified with this series, I'll merge it > > through the asm-generic tree. The SCSI patches can also get merged > > separately through the SCSI maintainers' tree if they prefer. > > I put patches 1 and 2 in scsi-staging to see if anything breaks... Ok, thanks! I have just the third patch in the asm-generic tree now. As long as it all make it into the merge window, this should work out fine without build issues, though there is a small bisection window during which the buslogic driver becomes hidden. I think that's ok here. Arnd
On Fri, 24 Jun 2022 17:52:23 +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@arndb.de> > > The virt_to_bus/bus_to_virt interface has been deprecated for > decades. After Jakub Kicinski put a lot of work into cleaning out the > network drivers using them, there are only a couple of other drivers > left, which can all be removed or otherwise cleaned up, to remove the > old interface for good. > > [...] Applied to 5.20/scsi-queue, thanks! [1/3] scsi: BusLogic remove bus_to_virt https://git.kernel.org/mkp/scsi/c/9f7c2232e131 [2/3] scsi: dpt_i2o: remove obsolete driver https://git.kernel.org/mkp/scsi/c/b04e75a4a8a8
From: Arnd Bergmann <arnd@arndb.de> The virt_to_bus/bus_to_virt interface has been deprecated for decades. After Jakub Kicinski put a lot of work into cleaning out the network drivers using them, there are only a couple of other drivers left, which can all be removed or otherwise cleaned up, to remove the old interface for good. Any out of tree drivers using virt_to_bus() should be converted to using the dma-mapping interfaces, typically dma_alloc_coherent() or dma_map_single()). There are a few m68k and ppc32 specific drivers that keep using the interfaces, but these are all guarded with architecture-specific Kconfig dependencies, and are not actually broken. It might be helpful as a follow-up to replace them with platform specific helpers for amiga, m68k-vme and powermac. There are still a number of drivers that are using virt_to_phys() and phys_to_virt() in place of dma-mapping operations, and these are often broken, but they are out of scope for this series. If there are no more issues identified with this series, I'll merge it through the asm-generic tree. The SCSI patches can also get merged separately through the SCSI maintainers' tree if they prefer. Arnd --- Changes since v2: - Drop the dpt_i2o driver completely rather than fixing it - fix mistake in BusLogic patch Changes since v1: - dropped VME patches that are already in staging-next - dropped media patch that gets merged independently - added a networking patch and dropped it again after it got merged - replace BusLogic removal with a workaround Cc: Jakub Kicinski <kuba@kernel.org> Cc: Christoph Hellwig <hch@infradead.org> # dma-mapping Cc: Marek Szyprowski <m.szyprowski@samsung.com> # dma-mapping Cc: Robin Murphy <robin.murphy@arm.com> # dma-mapping Cc: iommu@lists.linux-foundation.org Cc: Khalid Aziz <khalid@gonehiking.org> # buslogic Cc: Maciej W. Rozycki <macro@orcam.me.uk> # buslogic Cc: Matt Wang <wwentao@vmware.com> # buslogic Cc: Miquel van Smoorenburg <mikevs@xs4all.net> # dpt_i2o Cc: Mark Salyzyn <salyzyn@android.com> # dpt_i2o Cc: linux-scsi@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-arch@vger.kernel.org Cc: linux-alpha@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Cc: linux-parisc@vger.kernel.org Cc: Denis Efremov <efremov@linux.com> # floppy Arnd Bergmann (3): scsi: BusLogic remove bus_to_virt scsi: dpt_i2o: remove obsolete driver arch/*/: remove CONFIG_VIRT_TO_BUS .../core-api/bus-virt-phys-mapping.rst | 220 - Documentation/core-api/dma-api-howto.rst | 14 - Documentation/core-api/index.rst | 1 - .../translations/zh_CN/core-api/index.rst | 1 - .../userspace-api/ioctl/ioctl-number.rst | 2 +- MAINTAINERS | 8 - arch/alpha/Kconfig | 1 - arch/alpha/include/asm/floppy.h | 2 +- arch/alpha/include/asm/io.h | 8 +- arch/ia64/Kconfig | 1 - arch/ia64/include/asm/io.h | 8 - arch/m68k/Kconfig | 1 - arch/m68k/include/asm/virtconvert.h | 4 +- arch/microblaze/Kconfig | 1 - arch/microblaze/include/asm/io.h | 2 - arch/mips/Kconfig | 1 - arch/mips/include/asm/io.h | 9 - arch/parisc/Kconfig | 1 - arch/parisc/include/asm/floppy.h | 4 +- arch/parisc/include/asm/io.h | 2 - arch/powerpc/Kconfig | 1 - arch/powerpc/include/asm/io.h | 2 - arch/riscv/include/asm/page.h | 1 - arch/x86/Kconfig | 1 - arch/x86/include/asm/io.h | 9 - arch/xtensa/Kconfig | 1 - arch/xtensa/include/asm/io.h | 3 - drivers/scsi/BusLogic.c | 35 +- drivers/scsi/Kconfig | 13 +- drivers/scsi/Makefile | 1 - drivers/scsi/dpt/dpti_i2o.h | 441 -- drivers/scsi/dpt/dpti_ioctl.h | 136 - drivers/scsi/dpt/dptsig.h | 336 -- drivers/scsi/dpt/osd_defs.h | 79 - drivers/scsi/dpt/osd_util.h | 358 -- drivers/scsi/dpt/sys_info.h | 417 -- drivers/scsi/dpt_i2o.c | 3546 ----------------- drivers/scsi/dpti.h | 331 -- include/asm-generic/io.h | 14 - mm/Kconfig | 8 - 40 files changed, 35 insertions(+), 5989 deletions(-) delete mode 100644 Documentation/core-api/bus-virt-phys-mapping.rst delete mode 100644 drivers/scsi/dpt/dpti_i2o.h delete mode 100644 drivers/scsi/dpt/dpti_ioctl.h delete mode 100644 drivers/scsi/dpt/dptsig.h delete mode 100644 drivers/scsi/dpt/osd_defs.h delete mode 100644 drivers/scsi/dpt/osd_util.h delete mode 100644 drivers/scsi/dpt/sys_info.h delete mode 100644 drivers/scsi/dpt_i2o.c delete mode 100644 drivers/scsi/dpti.h