linux-kernel - [PATCH] RDMA/cma: Remove unused rdma_res_to

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Message-ID: <20250418165848.241305-1-linux@treblig.org>
Date: Fri, 18 Apr 2025 17:58:48 +0100
From: linux@...blig.org
To: jgg@...pe.ca,
	leon@...nel.org
Cc: linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Dr. David Alan Gilbert" <linux@...blig.org>
Subject: [PATCH] RDMA/cma: Remove unused rdma_res_to_id

From: "Dr. David Alan Gilbert" <linux@...blig.org>

The last use of rdma_res_to_id() was removed in 2020 by
commi t211cd9459fda ("RDMA: Add dedicated CM_ID resource tracker function")

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@...blig.org>
---
 drivers/infiniband/core/cma.c | 13 -------------
 include/rdma/rdma_cm.h        |  1 -
 2 files changed, 14 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index ab31eefa916b..e6cc289fd859 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -146,19 +146,6 @@ struct iw_cm_id *rdma_iw_cm_id(struct rdma_cm_id *id)
 }
 EXPORT_SYMBOL(rdma_iw_cm_id);
 
-/**
- * rdma_res_to_id() - return the rdma_cm_id pointer for this restrack.
- * @res: rdma resource tracking entry pointer
- */
-struct rdma_cm_id *rdma_res_to_id(struct rdma_restrack_entry *res)
-{
-	struct rdma_id_private *id_priv =
-		container_of(res, struct rdma_id_private, res);
-
-	return &id_priv->id;
-}
-EXPORT_SYMBOL(rdma_res_to_id);
-
 static int cma_add_one(struct ib_device *device);
 static void cma_remove_one(struct ib_device *device, void *client_data);
 
diff --git a/include/rdma/rdma_cm.h b/include/rdma/rdma_cm.h
index 8a8ab2f793ab..d1593ad47e28 100644
--- a/include/rdma/rdma_cm.h
+++ b/include/rdma/rdma_cm.h
@@ -388,6 +388,5 @@ void rdma_read_gids(struct rdma_cm_id *cm_id, union ib_gid *sgid,
 		    union ib_gid *dgid);
 
 struct iw_cm_id *rdma_iw_cm_id(struct rdma_cm_id *cm_id);
-struct rdma_cm_id *rdma_res_to_id(struct rdma_restrack_entry *res);
 
 #endif /* RDMA_CM_H */
-- 
2.49.0