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From 8bb25f86ea1976bc8dcc009be37e7c779d131811 Mon Sep 17 00:00:00 2001
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From: Patrisious Haddad <phaddad@nvidia.com>
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Date: Mon, 26 Oct 2020 10:38:13 +0200
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Subject: [PATCH] udaddy: Fix create_reply_ah error flow
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[ Upstream commit 2213fe559b74d4281f9d42e425dfbd7e0f582a67 ]
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Return error in case create_reply_ah() fails to create AH.
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Fixes: a7eb7efbf69f ("r8077: Add support for UD QPs to the RDMA CM library, along with a goofy test program")
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Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
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Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
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![](https://seccdn.libravatar.org/avatar/eca4d0658e293ac828929c05684948cb411ba891fa2ad2130aafa91b664e89ad?s=16&d=retro) |
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Signed-off-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
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---
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librdmacm/examples/udaddy.c | 19 ++++++++++++++-----
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1 file changed, 14 insertions(+), 5 deletions(-)
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diff --git a/librdmacm/examples/udaddy.c b/librdmacm/examples/udaddy.c
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index 9283caa4971f..9f911289da3c 100644
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--- a/librdmacm/examples/udaddy.c
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+++ b/librdmacm/examples/udaddy.c
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@@ -449,23 +449,27 @@ static void destroy_nodes(void)
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free(test.nodes);
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}
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-static void create_reply_ah(struct cmatest_node *node, struct ibv_wc *wc)
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+static int create_reply_ah(struct cmatest_node *node, struct ibv_wc *wc)
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{
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struct ibv_qp_attr attr;
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struct ibv_qp_init_attr init_attr;
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node->ah = ibv_create_ah_from_wc(node->pd, wc, node->mem,
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node->cma_id->port_num);
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+ if (!node->ah)
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+ return -1;
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node->remote_qpn = be32toh(wc->imm_data);
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- ibv_query_qp(node->cma_id->qp, &attr, IBV_QP_QKEY, &init_attr);
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+ if (ibv_query_qp(node->cma_id->qp, &attr, IBV_QP_QKEY, &init_attr))
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+ return -1;
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node->remote_qkey = attr.qkey;
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+ return 0;
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}
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static int poll_cqs(void)
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{
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struct ibv_wc wc[8];
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- int done, i, ret;
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+ int done, i, ret, rc;
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for (i = 0; i < connections; i++) {
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if (!test.nodes[i].connected)
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@@ -478,8 +482,13 @@ static int poll_cqs(void)
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return ret;
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}
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- if (ret && !test.nodes[i].ah)
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- create_reply_ah(&test.nodes[i], wc);
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+ if (ret && !test.nodes[i].ah) {
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+ rc = create_reply_ah(&test.nodes[i], wc);
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+ if (rc) {
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+ printf("udaddy: failed to create reply AH\n");
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+ return rc;
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+ }
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+ }
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}
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}
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return 0;
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--
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2.25.4
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