From: Logan Gunthorpe <logang@deltatee.com>
To: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org
Cc: Sagi Grimberg <sagi@grimberg.me>,
Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>,
Stephen Bates <sbates@raithlin.com>,
Max Gurtovoy <maxg@mellanox.com>,
Logan Gunthorpe <logang@deltatee.com>,
Christoph Hellwig <hch@lst.de>
Subject: [PATCH 1/7] nvmet-tcp: Don't check data_len in nvmet_tcp_map_data()
Date: Wed, 23 Oct 2019 10:35:39 -0600 [thread overview]
Message-ID: <20191023163545.4193-2-logang@deltatee.com> (raw)
In-Reply-To: <20191023163545.4193-1-logang@deltatee.com>
None of the other transports check data_len which is verified
in core code. The function should instead check that the sgl length
is non-zero.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
---
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 d535080b781f..1e2d92f818ad 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
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next prev parent reply other threads:[~2019-10-23 16:37 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-23 16:35 [PATCH 0/7] Remove data_len field from the nvmet_req struct Logan Gunthorpe
2019-10-23 16:35 ` Logan Gunthorpe [this message]
2019-10-24 1:15 ` [PATCH 1/7] nvmet-tcp: Don't check data_len in nvmet_tcp_map_data() Christoph Hellwig
2019-10-23 16:35 ` [PATCH 2/7] nvmet-tcp: Don't set the request's data_len Logan Gunthorpe
2019-10-24 1:15 ` Christoph Hellwig
2019-10-23 16:35 ` [PATCH 3/7] nvmet: Introduce common execute function for get_log_page and identify Logan Gunthorpe
2019-10-23 20:31 ` Chaitanya Kulkarni
2019-10-24 1:17 ` Christoph Hellwig
2019-10-24 17:18 ` Logan Gunthorpe
2019-10-24 22:01 ` Keith Busch
2019-10-24 22:40 ` Logan Gunthorpe
2019-10-23 16:35 ` [PATCH 4/7] nvmet: Cleanup discovery execute handlers Logan Gunthorpe
2019-10-23 16:35 ` [PATCH 5/7] nvmet: Introduce nvmet_dsm_len() helper Logan Gunthorpe
2019-10-23 20:31 ` Chaitanya Kulkarni
2019-10-23 16:35 ` [PATCH 6/7] nvmet: Remove the data_len field from the nvmet_req struct Logan Gunthorpe
2019-10-23 16:35 ` [PATCH 7/7] nvmet: Open code nvmet_req_execute() Logan Gunthorpe
2019-10-23 20:34 ` Chaitanya Kulkarni
2019-10-25 0:20 ` [PATCH 0/7] Remove data_len field from the nvmet_req struct Keith Busch
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