linux-next: build failure after merge of the bpf-next tree

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Hi all,

After merging the bpf-next tree, today's linux-next build (x86_64
allmodconfig) failed like this:

/tmp/next/build/drivers/hid/bpf/hid_bpf_struct_ops.c:280:16: error: initialization of 'int (*)(void *, struct bpf_link *)' from incompatible pointer type 'int (*)(void *)' [-Werror=incompatible-pointer-types]
  280 |         .reg = hid_bpf_reg,
      |                ^~~~~~~~~~~
/tmp/next/build/drivers/hid/bpf/hid_bpf_struct_ops.c:280:16: note: (near initialization for 'bpf_hid_bpf_ops.reg')
/tmp/next/build/drivers/hid/bpf/hid_bpf_struct_ops.c:281:18: error: initialization of 'void (*)(void *, struct bpf_link *)' from incompatible pointer type 'void (*)(void *)' [-Werror=incompatible-pointer-types]
  281 |         .unreg = hid_bpf_unreg,
      |                  ^~~~~~~~~~~~~
/tmp/next/build/drivers/hid/bpf/hid_bpf_struct_ops.c:281:18: note: (near initialization for 'bpf_hid_bpf_ops.unreg')

Caused by commit

  73287fe228721b ("bpf: pass bpf_struct_ops_link to callbacks in bpf_struct_ops.")

interacting with commit

  ebc0d8093e8c97 ("HID: bpf: implement HID-BPF through bpf_struct_ops")

from the HID tree.

I've fixed it up as below:

From e8aeaba00440845f9bd8d6183ca5d7383a678cd3 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@xxxxxxxxxx>
Date: Mon, 17 Jun 2024 19:02:27 +0100
Subject: [PATCH] HID: bpf: Fix up build

Fix up build error due to 73287fe228721b ("bpf: pass bpf_struct_ops_link to callbacks in bpf_struct_ops.")

Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 drivers/hid/bpf/hid_bpf_struct_ops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/bpf/hid_bpf_struct_ops.c b/drivers/hid/bpf/hid_bpf_struct_ops.c
index 5f200557ff12b..744318e7d936b 100644
--- a/drivers/hid/bpf/hid_bpf_struct_ops.c
+++ b/drivers/hid/bpf/hid_bpf_struct_ops.c
@@ -175,7 +175,7 @@ static int hid_bpf_ops_init_member(const struct btf_type *t,
 	return 0;
 }
 
-static int hid_bpf_reg(void *kdata)
+static int hid_bpf_reg(void *kdata, struct bpf_link *link)
 {
 	struct hid_bpf_ops *ops = kdata;
 	struct hid_device *hdev;
@@ -229,7 +229,7 @@ static int hid_bpf_reg(void *kdata)
 	return err;
 }
 
-static void hid_bpf_unreg(void *kdata)
+static void hid_bpf_unreg(void *kdata, struct bpf_link *link)
 {
 	struct hid_bpf_ops *ops = kdata;
 	struct hid_device *hdev;
-- 
2.39.2

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