On 11/16/2015 6:37 PM, Sagi Grimberg wrote:
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -250,7 +250,7 @@ iser_reg_dma(struct iser_device *device, struct iser_data_buf *mem,
struct scatterlist *sg = mem->sg;
reg->sge.lkey = device->pd->local_dma_lkey;
- reg->rkey = device->mr->rkey;
+ reg->rkey = device->mr ? device->mr->rkey : 0;
reg->sge.addr = ib_sg_dma_address(device->ib_device, &sg[0]);
reg->sge.length = ib_sg_dma_len(device->ib_device, &sg[0]);
what's the role of this hunk? why it belongs here? you are testing
device->mr but this is
something global and has nothing to do specially with specific IOs for
which this patch
aims to act
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