From: Shalin Mehta <shalinmehta85(a)gmail.com&gt; This issue is showed up while compiling with sparse. The iov_base in struct iovec struct explicitly declares that the assigned value should be user space pointer with __user macro. Where as here, the __user macro isn't used while casting. Signed-off-by: Shalin Mehta <shalinmehta85(a)gmail.com&gt; --- drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c index d29f5f1..c40b7e0 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c @@ -131,7 +131,7 @@ ksocknal_send_iov (ksock_conn_t *conn, ksock_tx_t *tx) LASSERT (tx->tx_niov > 0); if (nob < (int) iov->iov_len) { - iov->iov_base = (void *)((char *)iov->iov_base + nob); + iov->iov_base = (void __user *)((char __user *)iov->iov_base + nob); iov->iov_len -= nob; return rc; } @@ -1052,7 +1052,7 @@ ksocknal_new_packet (ksock_conn_t *conn, int nob_to_skip) case KSOCK_PROTO_V3: conn->ksnc_rx_state = SOCKNAL_RX_KSM_HEADER; conn->ksnc_rx_iov = (struct iovec *)&conn->ksnc_rx_iov_space; - conn->ksnc_rx_iov[0].iov_base = (char *)&conn->ksnc_msg; + conn->ksnc_rx_iov[0].iov_base = (char __user *)&conn->ksnc_msg; conn->ksnc_rx_nob_wanted = offsetof(ksock_msg_t, ksm_u); conn->ksnc_rx_nob_left = offsetof(ksock_msg_t, ksm_u); @@ -1066,7 +1066,7 @@ ksocknal_new_packet (ksock_conn_t *conn, int nob_to_skip) conn->ksnc_rx_nob_left = sizeof(lnet_hdr_t); conn->ksnc_rx_iov = (struct iovec *)&conn->ksnc_rx_iov_space; - conn->ksnc_rx_iov[0].iov_base = (char *)&conn->ksnc_msg.ksm_u.lnetmsg; + conn->ksnc_rx_iov[0].iov_base = (char __user *)&conn->ksnc_msg.ksm_u.lnetmsg; conn->ksnc_rx_iov[0].iov_len = sizeof (lnet_hdr_t); break; @@ -1093,7 +1093,7 @@ ksocknal_new_packet (ksock_conn_t *conn, int nob_to_skip) do { nob = MIN (nob_to_skip, sizeof (ksocknal_slop_buffer)); - conn->ksnc_rx_iov[niov].iov_base = ksocknal_slop_buffer; + conn->ksnc_rx_iov[niov].iov_base = (void __user *)ksocknal_slop_buffer; conn->ksnc_rx_iov[niov].iov_len = nob; niov++; skipped += nob; @@ -1218,7 +1218,7 @@ ksocknal_process_receive (ksock_conn_t *conn) conn->ksnc_rx_nob_left = sizeof(ksock_lnet_msg_t); conn->ksnc_rx_iov = (struct iovec *)&conn->ksnc_rx_iov_space; - conn->ksnc_rx_iov[0].iov_base = (char *)&conn->ksnc_msg.ksm_u.lnetmsg; + conn->ksnc_rx_iov[0].iov_base = (char __user *)&conn->ksnc_msg.ksm_u.lnetmsg; conn->ksnc_rx_iov[0].iov_len = sizeof(ksock_lnet_msg_t); conn->ksnc_rx_niov = 1; -- 1.9.1