[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-rdma
Subject:    [PATCH v2 04/18] IB/iser: Remove redundant cmd_data_len calculation
From:       Sagi Grimberg <sagig () mellanox ! com>
Date:       2015-03-31 16:45:44
Message-ID: 1427820358-15087-5-git-send-email-sagig () mellanox ! com
[Download RAW message or body]

This code was added before we had protection data length
calculation (in iser_send_command), so we needed to calc
the sg data length from the sg itself. This is not needed
anymore.

This patch does not change any functionality.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Adir Lev <adirl@mellanox.com>
---
 drivers/infiniband/ulp/iser/iser_memory.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index 341040b..32ccd5c 100644
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -53,12 +53,9 @@ static int iser_start_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
 	struct scatterlist *sgl = (struct scatterlist *)data->buf;
 	struct scatterlist *sg;
 	char *mem = NULL;
-	unsigned long  cmd_data_len = 0;
+	unsigned long  cmd_data_len = data->data_len;
 	int dma_nents, i;
 
-	for_each_sg(sgl, sg, data->size, i)
-		cmd_data_len += ib_sg_dma_len(dev, sg);
-
 	if (cmd_data_len > ISER_KMALLOC_THRESHOLD)
 		mem = (void *)__get_free_pages(GFP_ATOMIC,
 		      ilog2(roundup_pow_of_two(cmd_data_len)) - PAGE_SHIFT);
-- 
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
[prev in list] [next in list] [prev in thread] [next in thread]