[POWERPC] Fix viodasd driver with scatterlist debug
The iSeries viodasd drivers does some very strange things with scatterlists, one of these causing a BUG_ON to trigger when scatterlist debugging is enabled due to initializing the scatterlist with memset instead of sg_init_table(). This fixes it by using sg_init_table(). The rest of the stuff it does to that poor list is still pretty awful but it will work. I may look into fixing things in a nicer way some other time. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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@ -528,8 +528,7 @@ static int block_event_to_scatterlist(const struct vioblocklpevent *bevent,
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numsg = VIOMAXBLOCKDMA;
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*total_len = 0;
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memset(sg, 0, sizeof(sg[0]) * VIOMAXBLOCKDMA);
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sg_init_table(sg, VIOMAXBLOCKDMA);
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for (i = 0; (i < numsg) && (rw_data->dma_info[i].len > 0); ++i) {
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sg_dma_address(&sg[i]) = rw_data->dma_info[i].token;
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sg_dma_len(&sg[i]) = rw_data->dma_info[i].len;
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