From 1762742f3fd276570456eb669922e34e11bd98b7 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 27 Mar 2015 23:15:04 -0700 Subject: target/rd: Add checks for backend DIF emulation Make sure that RAMDISK only attempts to use backend DIF emulation when it's actually enabled at device level. Cc: Martin Petersen Cc: Sagi Grimberg Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_rd.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/target') diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c index 98e83ac5661b..bedd4a18b3ca 100644 --- a/drivers/target/target_core_rd.c +++ b/drivers/target/target_core_rd.c @@ -419,7 +419,8 @@ rd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, data_direction == DMA_FROM_DEVICE ? "Read" : "Write", cmd->t_task_lba, rd_size, rd_page, rd_offset); - if (cmd->prot_type && data_direction == DMA_TO_DEVICE) { + if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type && + data_direction == DMA_TO_DEVICE) { struct rd_dev_sg_table *prot_table; struct scatterlist *prot_sg; u32 sectors = cmd->data_length / se_dev->dev_attrib.block_size; @@ -502,7 +503,8 @@ rd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, } sg_miter_stop(&m); - if (cmd->prot_type && data_direction == DMA_FROM_DEVICE) { + if (cmd->prot_type && se_dev->dev_attrib.pi_prot_type && + data_direction == DMA_FROM_DEVICE) { struct rd_dev_sg_table *prot_table; struct scatterlist *prot_sg; u32 sectors = cmd->data_length / se_dev->dev_attrib.block_size; -- cgit v1.2.3