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nvme-tcp: fix data digest pointer calculation

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commit d89b9f3bbb upstream.

ddgst is of type __le32, &req->ddgst + req->offset
increases &req->ddgst by 4 * req->offset, fix this by
type casting &req->ddgst to u8 *.

Fixes: 3f2304f8c6 ("nvme-tcp: add NVMe over TCP host driver")
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Varun Prakash
2021-10-25 22:47:30 +05:30
committed by Greg Kroah-Hartman
parent 4286c72c53
commit 32f3db20f1
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/host/tcp.c
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@@ -1040,7 +1040,7 @@ static int nvme_tcp_try_send_ddgst(struct nvme_tcp_request *req)
int ret;
struct msghdr msg = { .msg_flags = MSG_DONTWAIT };
struct kvec iov = {
.iov_base = &req->ddgst + req->offset,
.iov_base = (u8 *)&req->ddgst + req->offset,
.iov_len = NVME_TCP_DIGEST_LENGTH - req->offset
};