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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2007-09-07 16:00:25 +0100
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-10-11 12:16:57 +0200
commitb5a8e7362a0a5088ac080086d41cd98a54e0791b (patch)
tree22c38de4c82f987d42a2abbb90fe7cd30466a7e2 /arch/avr32/mm
parent0d2372e5d61ccc1c618aaf5099700c8dc76e234a (diff)
downloadop-kernel-dev-b5a8e7362a0a5088ac080086d41cd98a54e0791b.zip
op-kernel-dev-b5a8e7362a0a5088ac080086d41cd98a54e0791b.tar.gz
[AVR32] Make dma_sync_*_for_cpu no-ops
I don't think the dma_sync_*_for_cpu ever did anything useful. We flush the relevant cache lines when mapping the buffer or when calling dma_sync_*_for_device(), and the CPU isn't allowed to touch the buffer after that. In other words, if these functions actually have anything to flush from the caches, we're already in trouble. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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