linux/drivers/mtd
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
..
chips mtd: cfi: fix deadloop in cfi_cmdset_0002.c do_write_buffer 2019-04-05 00:39:19 +02:00
devices MTD changes: 2019-03-04 18:59:37 -08:00
lpddr mtd: lpddr: Use struct_size() in kzalloc() 2019-01-15 20:49:33 +01:00
maps Kbuild updates for v4.21 2018-12-29 12:03:17 -08:00
nand Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb()) 2019-05-06 16:57:52 -07:00
parsers mtd: partitions: Add OF support to RedBoot partitions 2018-11-12 11:51:02 +01:00
spi-nor spi: Updates for v5.1 2019-03-04 19:23:56 -08:00
tests mtd: rawnand: Allow selection of ECC byte ordering at runtime 2018-10-03 11:12:25 +02:00
ubi ubi: wl: Silence uninitialized variable warning 2019-03-05 21:21:07 +01:00
afs.c
ar7part.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
bcm47xxpart.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
bcm63xxpart.c
cmdlinepart.c mtd: cmdlinepart: Update comment for introduction of OFFSET_CONTINUOUS 2018-05-23 10:08:48 +02:00
ftl.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
inftlcore.c
inftlmount.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
Kconfig Char/Misc driver patches for 4.21-rc1 2018-12-28 20:54:57 -08:00
Makefile mtd: Move Redboot partition parser 2018-11-12 11:44:13 +01:00
mtd_blkdevs.c mtd_blkdevs: convert to blk-mq 2018-10-16 08:09:58 -06:00
mtdblock_ro.c
mtdblock.c mtd: change len type from signed to unsigned type 2018-12-03 11:32:26 +01:00
mtdchar.c mtdchar: fix overflows in adjustment of count 2018-07-18 16:46:38 +02:00
mtdconcat.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
mtdcore.c MTD changes: 2019-03-04 18:59:37 -08:00
mtdcore.h mtd: Check add_mtd_device() ret code 2019-01-07 14:06:24 +01:00
mtdoops.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
mtdpart.c mtd: Make sure mtd->erasesize is valid even if the partition is of size 0 2019-02-06 00:02:51 +01:00
mtdsuper.c
mtdswap.c mtd: use DEFINE_SHOW_ATTRIBUTE() instead of open-coding it 2018-12-03 11:32:26 +01:00
nftlcore.c
nftlmount.c mtd: nftl: clean up indentation, remove extraneous tabs 2018-12-02 09:20:36 +01:00
ofpart.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
rfd_ftl.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
sm_ftl.c mtd: rawnand: Allow selection of ECC byte ordering at runtime 2018-10-03 11:12:25 +02:00
sm_ftl.h
ssfdc.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00