Documentation: Kill all references to mmiowb()

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The guarantees provided by mmiowb() are now provided implicitly by
spin_unlock(), so remove all references to this most confusing of
barriers from our Documentation.

Good riddance.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2019-02-22 16:17:54 +00:00

parent b012980d1c

commit 915530396c

3 changed files with 4 additions and 148 deletions

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45

Documentation/driver-api/device-io.rst

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4

Documentation/driver-api/pci/p2pdma.rst

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103

Documentation/memory-barriers.txt

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