Messages in this thread | | | Date | Tue, 21 Apr 2020 17:55:16 +0100 | From | Russell King - ARM Linux admin <> | Subject | Re: [PATCH] arm32: fix flushcache syscall with device address |
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On Tue, Apr 21, 2020 at 05:50:22PM +0100, James Morse wrote: > Hi guys, > > (Subject Nit: arm64, as that is what your patch modifies)
That is irrelevent. This is a compatibility interface which is supposed to reflect the arm32 implementation. Augmenting a compatibility interface to do more than what it's counterpart that it's supposed to be compatible with is senseless.
The API concerned is an ARM32 API which is expected to only be used for ensuring I/D cache coherency, it is not for DMA.
Augmenting it on ARM64 for DMA is senseless.
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