diff options
author | David S. Miller <davem@davemloft.net> | 2009-12-01 22:13:38 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2009-12-01 22:13:38 -0800 |
commit | ff9c38bba37937adb909cceb2a6521f2e92e17c6 (patch) | |
tree | 93bd6152d9fa28348be99ef1c788040cc7b7a94d /crypto/async_tx/async_pq.c | |
parent | 65c0cfafce9575319fb6f70080fbe226e5617e3b (diff) | |
parent | b2722b1c3a893ec6021508da15b32282ec79f4da (diff) |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
net/mac80211/ht.c
Diffstat (limited to 'crypto/async_tx/async_pq.c')
-rw-r--r-- | crypto/async_tx/async_pq.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c index 6b5cc4fba59..ec87f53d505 100644 --- a/crypto/async_tx/async_pq.c +++ b/crypto/async_tx/async_pq.c @@ -240,6 +240,16 @@ async_gen_syndrome(struct page **blocks, unsigned int offset, int disks, } EXPORT_SYMBOL_GPL(async_gen_syndrome); +static inline struct dma_chan * +pq_val_chan(struct async_submit_ctl *submit, struct page **blocks, int disks, size_t len) +{ + #ifdef CONFIG_ASYNC_TX_DISABLE_PQ_VAL_DMA + return NULL; + #endif + return async_tx_find_channel(submit, DMA_PQ_VAL, NULL, 0, blocks, + disks, len); +} + /** * async_syndrome_val - asynchronously validate a raid6 syndrome * @blocks: source blocks from idx 0..disks-3, P @ disks-2 and Q @ disks-1 @@ -260,9 +270,7 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks, size_t len, enum sum_check_flags *pqres, struct page *spare, struct async_submit_ctl *submit) { - struct dma_chan *chan = async_tx_find_channel(submit, DMA_PQ_VAL, - NULL, 0, blocks, disks, - len); + struct dma_chan *chan = pq_val_chan(submit, blocks, disks, len); struct dma_device *device = chan ? chan->device : NULL; struct dma_async_tx_descriptor *tx; unsigned char coefs[disks-2]; |