From: Roland Dreier Date: Fri, 30 Mar 2012 18:29:12 +0000 (-0700) Subject: IB/srpt: Remove use of transport_do_task_sg_chain() X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6f9e7f01b69bc2d6021e4ab827e1fd78c82cbc52;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git IB/srpt: Remove use of transport_do_task_sg_chain() With the modern target core, se_cmd->t_data_sg already points to a sglist that covers the whole command. So task_sg chaining is needless overhead and obfuscation -- instead of splicing the split up task sglists back into one list, we can just use the original list directly. Signed-off-by: Roland Dreier Reviewed-by: Christoph Hellwig Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 69e2ad06e515..1e3866eb80a8 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -1099,9 +1099,8 @@ static int srpt_map_sg_to_ib_sge(struct srpt_rdma_ch *ch, dir = cmd->data_direction; BUG_ON(dir == DMA_NONE); - transport_do_task_sg_chain(cmd); - ioctx->sg = sg = sg_orig = cmd->t_tasks_sg_chained; - ioctx->sg_cnt = sg_cnt = cmd->t_tasks_sg_chained_no; + ioctx->sg = sg = sg_orig = cmd->t_data_sg; + ioctx->sg_cnt = sg_cnt = cmd->t_data_nents; count = ib_dma_map_sg(ch->sport->sdev->device, sg, sg_cnt, opposite_dma_dir(dir)); @@ -4003,9 +4002,6 @@ static int __init srpt_init_module(void) srpt_target->tf_ops = srpt_template; - /* Enable SG chaining */ - srpt_target->tf_ops.task_sg_chaining = true; - /* * Set up default attribute lists. */