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linux/Documentation/driver-api/device-io.rst
Will Deacon 915530396c Documentation: Kill all references to mmiowb() 
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>
2019-04-08 12:00:45 +01:00

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