From eff4c654b1a4a5e5493fbdc3affa6dd48765c085 Mon Sep 17 00:00:00 2001 From: Hal Rosenstock Date: Mon, 19 Sep 2005 13:51:01 -0700 Subject: [PATCH] [PATCH] IB: Fix data length for RMPP SA sends We need to subtract off the header length from our payload length when sending multi-packet SA messages. Signed-off-by: Hal Rosenstock Signed-off-by: Roland Dreier --- drivers/infiniband/core/user_mad.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 7c2f03057dd..a64d6b4dcc1 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -334,10 +334,11 @@ static ssize_t ib_umad_write(struct file *filp, const char __user *buf, ret = -EINVAL; goto err_ah; } - /* Validate that management class can support RMPP */ + + /* Validate that the management class can support RMPP */ if (rmpp_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_ADM) { hdr_len = offsetof(struct ib_sa_mad, data); - data_len = length; + data_len = length - hdr_len; } else if ((rmpp_mad->mad_hdr.mgmt_class >= IB_MGMT_CLASS_VENDOR_RANGE2_START) && (rmpp_mad->mad_hdr.mgmt_class <= IB_MGMT_CLASS_VENDOR_RANGE2_END)) { hdr_len = offsetof(struct ib_vendor_mad, data); -- 2.41.1