From: Manas <manas18244@iiitd.ac.in>

The last parameter in __smc_diag_dump (struct nlattr *bc) is unused.
There is only one instance of this function being called and its passed
with a NULL value in place of bc.

Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Manas <manas18244@iiitd.ac.in>
---
Changes in v2:
- Added target tree and prefix
- Carried forward Reviewed-by: tag from v1
- Link to v1: https://lore.kernel.org/r/20241109-fix-oops-__smc_diag_dump-v1-1-1c55a3e54ad4@iiitd.ac.in
---
 net/smc/smc_diag.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/smc/smc_diag.c b/net/smc/smc_diag.c
index 6fdb2d96777ad704c394709ec845f9ddef5e599a..8f7bd40f475945171a0afa5a2cce12d9aa2b1eb4 100644
--- a/net/smc/smc_diag.c
+++ b/net/smc/smc_diag.c
@@ -71,8 +71,7 @@ static int smc_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
 
 static int __smc_diag_dump(struct sock *sk, struct sk_buff *skb,
 			   struct netlink_callback *cb,
-			   const struct smc_diag_req *req,
-			   struct nlattr *bc)
+			   const struct smc_diag_req *req)
 {
 	struct smc_sock *smc = smc_sk(sk);
 	struct smc_diag_fallback fallback;
@@ -199,7 +198,6 @@ static int smc_diag_dump_proto(struct proto *prot, struct sk_buff *skb,
 	struct smc_diag_dump_ctx *cb_ctx = smc_dump_context(cb);
 	struct net *net = sock_net(skb->sk);
 	int snum = cb_ctx->pos[p_type];
-	struct nlattr *bc = NULL;
 	struct hlist_head *head;
 	int rc = 0, num = 0;
 	struct sock *sk;
@@ -214,7 +212,7 @@ static int smc_diag_dump_proto(struct proto *prot, struct sk_buff *skb,
 			continue;
 		if (num < snum)
 			goto next;
-		rc = __smc_diag_dump(sk, skb, cb, nlmsg_data(cb->nlh), bc);
+		rc = __smc_diag_dump(sk, skb, cb, nlmsg_data(cb->nlh));
 		if (rc < 0)
 			goto out;
 next:

---
base-commit: 40384c840ea1944d7c5a392e8975ed088ecf0b37
change-id: 20241109-fix-oops-__smc_diag_dump-06ab3e9d39f4

Best regards,
-- 
Manas <manas18244@iiitd.ac.in>

On 12/2/24 11:10, Manas via B4 Relay wrote:
> From: Manas <manas18244@iiitd.ac.in>
> 
> The last parameter in __smc_diag_dump (struct nlattr *bc) is unused.
> There is only one instance of this function being called and its passed
> with a NULL value in place of bc.
> 
> Reviewed-by: Simon Horman <horms@kernel.org>
> Signed-off-by: Manas <manas18244@iiitd.ac.in>

The signed-off-by tag must include your full name, see:

https://elixir.bootlin.com/linux/v6.11.8/source/Documentation/process/submitting-patches.rst#L440

Thanks,

Paolo