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authorVarun Prakash <varun@chelsio.com>2021-10-25 20:16:54 +0300
committerChristoph Hellwig <hch@lst.de>2021-10-27 08:58:26 +0300
commite790de54e94a7a15fb725b34724d41d41cbaa60c (patch)
treed7df9a09a623ef1220653f61a8d2aff57e460b8f /drivers
parentd89b9f3bbb58e9e378881209756b0723694f22ff (diff)
downloadlinux-e790de54e94a7a15fb725b34724d41d41cbaa60c.tar.xz
nvmet-tcp: fix data digest pointer calculation
exp_ddgst is of type __le32, &cmd->exp_ddgst + cmd->offset increases &cmd->exp_ddgst by 4 * cmd->offset, fix this by type casting &cmd->exp_ddgst to u8 *. Fixes: 872d26a391da ("nvmet-tcp: add NVMe over TCP target driver") Signed-off-by: Varun Prakash <varun@chelsio.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/nvme/target/tcp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index c33a0464346f..586ca20837e7 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -702,7 +702,7 @@ static int nvmet_try_send_ddgst(struct nvmet_tcp_cmd *cmd, bool last_in_batch)
struct nvmet_tcp_queue *queue = cmd->queue;
struct msghdr msg = { .msg_flags = MSG_DONTWAIT };
struct kvec iov = {
- .iov_base = &cmd->exp_ddgst + cmd->offset,
+ .iov_base = (u8 *)&cmd->exp_ddgst + cmd->offset,
.iov_len = NVME_TCP_DIGEST_LENGTH - cmd->offset
};
int ret;