lkml.org 
[lkml]   [2019]   [Aug]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH v8 09/13] nvmet-tcp: don't check data_len in nvmet_tcp_map_data()
With passthru, the data_len is no longer guaranteed to be set
for all requests. Therefore, we should not check for it to be
non-zero. Instead check if the SGL length is zero and map
when appropriate.

None of the other transports check data_len which is verified
in core code.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
drivers/nvme/target/tcp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index 69b83fa0c76c..db5bc5f444c4 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -320,7 +320,7 @@ static int nvmet_tcp_map_data(struct nvmet_tcp_cmd *cmd)
struct nvme_sgl_desc *sgl = &cmd->req.cmd->common.dptr.sgl;
u32 len = le32_to_cpu(sgl->length);

- if (!cmd->req.data_len)
+ if (!len)
return 0;

if (sgl->type == ((NVME_SGL_FMT_DATA_DESC << 4) |
--
2.20.1
\
 
 \ /
  Last update: 2019-08-28 23:56    [W:0.093 / U:1.788 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site