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authorDan Williams <dan.j.williams@intel.com>2008-04-17 20:17:26 -0700
committerDan Williams <dan.j.williams@intel.com>2008-04-17 13:25:54 -0700
commit636bdeaa1243327501edfd2a597ed7443eb4239a (patch)
tree59b894f124e3664ea4a537d7c07c527abdb9c8da /Kbuild
parentc4fe15541d0ef5cc8cc1ce43057663851f8fc387 (diff)
downloadop-kernel-dev-636bdeaa1243327501edfd2a597ed7443eb4239a.zip
op-kernel-dev-636bdeaa1243327501edfd2a597ed7443eb4239a.tar.gz
dmaengine: ack to flags: make use of the unused bits in the 'ack' field
'ack' is currently a simple integer that flags whether or not a client is done touching fields in the given descriptor. It is effectively just a single bit of information. Converting this to a flags parameter allows the other bits to be put to use to control completion actions, like dma-unmap, and capture results, like xor-zero-sum == 0. Changes are one of: 1/ convert all open-coded ->ack manipulations to use async_tx_ack and async_tx_test_ack. 2/ set the ack bit at prep time where possible 3/ make drivers store the flags at prep time 4/ add flags to the device_prep_dma_interrupt prototype Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions
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