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Date: Thu, 17 May 2012 12:40:36 -0400 From: Paul Gortmaker <paul.gortmaker@...driver.com> To: linux-kernel@...r.kernel.org Cc: JBottomley@...allels.com, Paul Gortmaker <paul.gortmaker@...driver.com>, Andrew Morton <akpm@...ux-foundation.org>, Linus Torvalds <torvalds@...ux-foundation.org> Subject: [RFC/PATCH 0/5] Delete microchannel [CONFIG_MCA] support It was good that we could support MCA machines back in the day, but realistically, nobody is using them anymore. They were limited to 386-sx 16MHz CPU and some 486 class machines and never more than 64MB of RAM. Even the enthusiast hobbyist community seems to have dried up close to ten years ago, based on what you can find searching various websites dedicated to the relatively short lived hardware. So lets remove the support relating to CONFIG_MCA. There is no point carrying this forward, wasting cycles doing routine maintenance on it; wasting allyesconfig build time on validating it, wasting I/O on git grep'ping over it, and so on. The commits shown here are based off net-next (d584515fb), since net-next has already removed the Token Ring support that was largely limited to IBM's MCA equipped machines (and hence depended on CONFIG_MCA). I've not bothered to list the line-by-line deletions of whole files that are removed in this RFC, since that conveys no useful information. Build coverage so far has been x86, x86_64, allyesconfig, allmodconfig. Thanks, Paul. --- Cc: Andrew Morton <akpm@...ux-foundation.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Paul Gortmaker (5): arm: remove ability to select CONFIG_MCA drivers/net: delete all code/drivers depending on CONFIG_MCA serial: delete the MCA specific 8250 support. scsi: delete the MCA specific drivers and driver code MCA: delete all remaining traces of microchannel bus support. Documentation/00-INDEX | 2 - Documentation/DocBook/Makefile | 2 +- Documentation/DocBook/kernel-api.tmpl | 13 - Documentation/DocBook/mcabook.tmpl | 107 -- Documentation/devices.txt | 8 +- Documentation/eisa.txt | 2 +- Documentation/kernel-parameters.txt | 1 - Documentation/mca.txt | 313 ---- Documentation/networking/3c509.txt | 1 - Documentation/networking/fore200e.txt | 6 +- Documentation/scsi/00-INDEX | 2 - Documentation/scsi/ibmmca.txt | 1402 ------------------ Documentation/scsi/scsi-parameters.txt | 6 - Documentation/scsi/scsi_mid_low_api.txt | 2 +- Documentation/serial/stallion.txt | 22 +- MAINTAINERS | 13 - arch/arm/Kconfig | 8 - arch/frv/include/asm/processor.h | 1 - arch/x86/Kconfig | 10 - arch/x86/include/asm/mca.h | 43 - arch/x86/include/asm/mca_dma.h | 201 --- arch/x86/include/asm/mpspec.h | 2 +- arch/x86/include/asm/mpspec_def.h | 3 +- arch/x86/kernel/Makefile | 1 - arch/x86/kernel/acpi/boot.c | 2 +- arch/x86/kernel/apic/io_apic.c | 17 +- arch/x86/kernel/mca_32.c | 476 ------ arch/x86/kernel/mpparse.c | 11 +- arch/x86/kernel/nmi.c | 12 - arch/x86/kernel/setup.c | 8 - arch/x86/kernel/time.c | 6 - arch/x86/kernel/traps.c | 4 - drivers/Makefile | 1 - drivers/mca/Kconfig | 14 - drivers/mca/Makefile | 7 - drivers/mca/mca-bus.c | 169 --- drivers/mca/mca-device.c | 218 --- drivers/mca/mca-driver.c | 63 - drivers/mca/mca-legacy.c | 329 ----- drivers/mca/mca-proc.c | 249 ---- drivers/message/i2o/i2o_proc.c | 13 - drivers/net/Space.c | 16 +- drivers/net/ethernet/3com/3c509.c | 123 +-- drivers/net/ethernet/8390/Kconfig | 24 - drivers/net/ethernet/8390/Makefile | 1 - drivers/net/ethernet/8390/ne2.c | 798 ----------- drivers/net/ethernet/8390/smc-mca.c | 575 -------- drivers/net/ethernet/amd/depca.c | 210 +--- drivers/net/ethernet/fujitsu/at1700.c | 120 +-- drivers/net/ethernet/i825xx/3c523.c | 1312 ----------------- drivers/net/ethernet/i825xx/3c523.h | 355 ----- drivers/net/ethernet/i825xx/3c527.c | 1660 --------------------- drivers/net/ethernet/i825xx/Kconfig | 22 - drivers/net/ethernet/i825xx/Makefile | 2 - drivers/net/ethernet/i825xx/eexpress.c | 60 +- drivers/net/ethernet/natsemi/Kconfig | 20 +- drivers/net/ethernet/natsemi/Makefile | 1 - drivers/scsi/Kconfig | 83 -- drivers/scsi/Makefile | 2 - drivers/scsi/aha1542.c | 66 +- drivers/scsi/fd_mcs.c | 1354 ------------------ drivers/scsi/ibmmca.c | 2379 ------------------------------- drivers/scsi/sim710.c | 124 +-- drivers/tty/serial/8250/8250_mca.c | 61 - drivers/tty/serial/8250/Kconfig | 9 - drivers/tty/serial/8250/Makefile | 1 - include/linux/i2o-dev.h | 2 +- include/linux/mca-legacy.h | 66 - include/linux/mca.h | 148 -- include/linux/serial.h | 2 - include/linux/serial_8250.h | 1 - scripts/kconfig/mconf.c | 2 +- scripts/kconfig/nconf.c | 2 +- 73 files changed, 50 insertions(+), 13321 deletions(-) delete mode 100644 Documentation/DocBook/mcabook.tmpl delete mode 100644 Documentation/mca.txt delete mode 100644 Documentation/scsi/ibmmca.txt delete mode 100644 arch/x86/include/asm/mca.h delete mode 100644 arch/x86/include/asm/mca_dma.h delete mode 100644 arch/x86/kernel/mca_32.c delete mode 100644 drivers/mca/Kconfig delete mode 100644 drivers/mca/Makefile delete mode 100644 drivers/mca/mca-bus.c delete mode 100644 drivers/mca/mca-device.c delete mode 100644 drivers/mca/mca-driver.c delete mode 100644 drivers/mca/mca-legacy.c delete mode 100644 drivers/mca/mca-proc.c delete mode 100644 drivers/net/ethernet/8390/ne2.c delete mode 100644 drivers/net/ethernet/8390/smc-mca.c delete mode 100644 drivers/net/ethernet/i825xx/3c523.c delete mode 100644 drivers/net/ethernet/i825xx/3c523.h delete mode 100644 drivers/net/ethernet/i825xx/3c527.c delete mode 100644 drivers/scsi/fd_mcs.c delete mode 100644 drivers/scsi/ibmmca.c delete mode 100644 drivers/tty/serial/8250/8250_mca.c delete mode 100644 include/linux/mca-legacy.h delete mode 100644 include/linux/mca.h -- 1.7.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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