linux/arch/m68k
Linus Torvalds dd4e5d6106 Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb())
Remove mmiowb() from the kernel memory barrier API and instead, for
 architectures that need it, hide the barrier inside spin_unlock() when
 MMIO has been performed inside the critical section.
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Merge tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull mmiowb removal from Will Deacon:
 "Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb())

  Remove mmiowb() from the kernel memory barrier API and instead, for
  architectures that need it, hide the barrier inside spin_unlock() when
  MMIO has been performed inside the critical section.

  The only relatively recent changes have been addressing review
  comments on the documentation, which is in a much better shape thanks
  to the efforts of Ben and Ingo.

  I was initially planning to split this into two pull requests so that
  you could run the coccinelle script yourself, however it's been plain
  sailing in linux-next so I've just included the whole lot here to keep
  things simple"

* tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (23 commits)
  docs/memory-barriers.txt: Update I/O section to be clearer about CPU vs thread
  docs/memory-barriers.txt: Fix style, spacing and grammar in I/O section
  arch: Remove dummy mmiowb() definitions from arch code
  net/ethernet/silan/sc92031: Remove stale comment about mmiowb()
  i40iw: Redefine i40iw_mmiowb() to do nothing
  scsi/qla1280: Remove stale comment about mmiowb()
  drivers: Remove explicit invocations of mmiowb()
  drivers: Remove useless trailing comments from mmiowb() invocations
  Documentation: Kill all references to mmiowb()
  riscv/mmiowb: Hook up mmwiob() implementation to asm-generic code
  powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code
  ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock()
  mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock()
  sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock()
  m68k/io: Remove useless definition of mmiowb()
  nds32/io: Remove useless definition of mmiowb()
  x86/io: Remove useless definition of mmiowb()
  arm64/io: Remove useless definition of mmiowb()
  ARM/io: Remove useless definition of mmiowb()
  mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors
  ...
2019-05-06 16:57:52 -07:00
..
68000 m68k: Fix off-by-one calendar month 2018-05-22 10:31:50 +02:00
amiga m68k: amiga: Convert to clocksource API 2019-03-25 10:22:24 +01:00
apollo m68k: apollo, q40, sun3, sun3x: Remove arch_gettimeoffset implementations 2019-03-25 10:22:24 +01:00
atari m68k: atari: Convert to clocksource API 2019-03-25 10:22:24 +01:00
bvme6000 m68k: bvme6000: Convert to clocksource API 2019-03-25 10:22:24 +01:00
coldfire Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2019-03-11 18:33:52 -07:00
configs m68k: defconfig: Update defconfigs for v5.1-rc1 2019-03-25 10:22:40 +01:00
emu m68k: set proper major_num when specifying module param major_num 2019-02-06 12:50:40 -07:00
fpsp040 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hp300 m68k: hp300: Handle timer counter overflow 2019-03-25 10:22:24 +01:00
ifpsp060 scripts/spelling.txt: add regsiter -> register spelling mistake 2017-05-08 17:15:13 -07:00
include Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) 2019-05-06 16:57:52 -07:00
kernel arch: add pidfd and io_uring syscalls everywhere 2019-04-15 16:31:17 +02:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mac m68k: mac: Convert to clocksource API 2019-03-25 10:22:24 +01:00
math-emu m68k: Assorted spelling fixes 2016-07-03 14:05:28 +02:00
mm treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
mvme16x m68k: mvme16x: Handle timer counter overflow 2019-03-25 10:22:25 +01:00
mvme147 m68k: mvme147: Handle timer counter overflow 2019-03-25 10:22:24 +01:00
q40 m68k: apollo, q40, sun3, sun3x: Remove arch_gettimeoffset implementations 2019-03-25 10:22:24 +01:00
sun3 m68k: apollo, q40, sun3, sun3x: Remove arch_gettimeoffset implementations 2019-03-25 10:22:24 +01:00
sun3x m68k: apollo, q40, sun3, sun3x: Remove arch_gettimeoffset implementations 2019-03-25 10:22:24 +01:00
tools/amiga License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
install.sh
Kconfig m68k updates for v5.2 2019-05-06 16:39:31 -07:00
Kconfig.bus pcmcia: allow PCMCIA support independent of the architecture 2018-11-23 11:46:00 +09:00
Kconfig.cpu PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Kconfig.devices License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.machine m68k: Dispatch nvram_ops calls to Atari or Mac functions 2019-01-22 10:21:45 +01:00
Makefile m68k: Add -ffreestanding to CFLAGS 2019-01-21 10:36:53 +01:00