From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Combination of CONFIG_DEBUG_OBJECTS_RCU_HEAD=y and
CONFIG_INFINIBAND_SRPT=m produces the following build error.
ERROR: "init_rcu_head" [drivers/infiniband/ulp/srpt/ib_srpt.ko] undefined!
make[1]: *** [scripts/Makefile.modpost:92: __modpost] Error 1
make: *** [Makefile:1216: modules] Error 2
The reason to it that init_rcu_head() is not exported and not supposed
to be used in modules. It is needed for dynamic initialization of
statically allocated rcu_head structures.
Fixes: 795bc112cd5a ("IB/srpt: Make it safe to use RCU for srpt_device.rch_list")
Fixes: a11253142e6d ("IB/srpt: Rework multi-channel support")
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
Changelog:
v0->v1:
* Added Bart's SOB.
* Updated commit message.
* Removed init_rcu_head() from srpt code.
---
drivers/infiniband/ulp/srpt/ib_srpt.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index bf37816a1b12..0373b7c40902 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1950,7 +1950,6 @@ static struct srpt_nexus *srpt_get_nexus(struct srpt_port *sport,
nexus = ERR_PTR(-ENOMEM);
break;
}
- init_rcu_head(&tmp_nexus->rcu);
INIT_LIST_HEAD(&tmp_nexus->ch_list);
memcpy(tmp_nexus->i_port_id, i_port_id, 16);
memcpy(tmp_nexus->t_port_id, t_port_id, 16);
@@ -2110,7 +2109,6 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
goto reject;
}
- init_rcu_head(&ch->rcu);
kref_init(&ch->kref);
ch->pkey = be16_to_cpu(pkey);
ch->nexus = nexus;
--
2.15.1
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