[PATCH] RDMA/srpt: fix function pointer cast warnings

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From: Arnd Bergmann <arnd@xxxxxxxx>

clang-16 notices that srpt_qp_event() gets called through an incompatible
pointer here:

drivers/infiniband/ulp/srpt/ib_srpt.c:1815:5: error: cast from 'void (*)(struct ib_event *, struct srpt_rdma_ch *)' to 'void (*)(struct ib_event *, void *)' converts to incompatible function type [-Werror,-Wcast-function-type-strict]
 1815 |                 = (void(*)(struct ib_event *, void*))srpt_qp_event;

Change srpt_qp_event() to use the correct prototype and adjust the
argument inside of it.

Fixes: a42d985bd5b2 ("ib_srpt: Initial SRP Target merge for v3.3-rc1")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 drivers/infiniband/ulp/srpt/ib_srpt.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 0875f197118f..942b311b6296 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -216,8 +216,10 @@ static const char *get_ch_state_name(enum rdma_ch_state s)
  * @event: Description of the event that occurred.
  * @ch: SRPT RDMA channel.
  */
-static void srpt_qp_event(struct ib_event *event, struct srpt_rdma_ch *ch)
+static void srpt_qp_event(struct ib_event *event, void *ptr)
 {
+	struct srpt_rdma_ch *ch = ptr;
+
 	pr_debug("QP event %d on ch=%p sess_name=%s-%d state=%s\n",
 		 event->event, ch, ch->sess_name, ch->qp->qp_num,
 		 get_ch_state_name(ch->state));
@@ -1811,8 +1813,7 @@ static int srpt_create_ch_ib(struct srpt_rdma_ch *ch)
 	ch->cq_size = ch->rq_size + sq_size;
 
 	qp_init->qp_context = (void *)ch;
-	qp_init->event_handler
-		= (void(*)(struct ib_event *, void*))srpt_qp_event;
+	qp_init->event_handler = srpt_qp_event;
 	qp_init->send_cq = ch->cq;
 	qp_init->recv_cq = ch->cq;
 	qp_init->sq_sig_type = IB_SIGNAL_REQ_WR;
-- 
2.39.2





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