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| author | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2009-10-14 20:40:10 +0200 |
|---|---|---|
| committer | Stefan Richter <stefanr@s5r6.in-berlin.de> | 2009-10-31 11:40:51 +0100 |
| commit | 19593ffdb6daa6ba691d247a2400cece12687c52 (patch) | |
| tree | 18c3508bbdb5f2d1b1bf51ac653ec580043a9340 /drivers/ieee1394 | |
| parent | firewire: core: WARN on wrong usage of core transaction functions (diff) | |
| download | linux-19593ffdb6daa6ba691d247a2400cece12687c52.tar.xz linux-19593ffdb6daa6ba691d247a2400cece12687c52.zip | |
firewire: ohci: 0 may be a valid DMA address
I was told that there are obscure architectures with non-coherent DMA
which may DMA-map to bus address 0. We shall not use 0 as a magic
number of uninitialized bus address variables.
The packet->payload_length > 0 test cannot be used either (except in
at_context_queue_packet) because local requests are not DMA-mapped
regardless of payload_length. Hence add a state flag to struct
fw_packet.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/ieee1394')
0 files changed, 0 insertions, 0 deletions