[PATCH RFC bpf-next 5/8] selftests/bpf: rely on wq_callback_fn_t

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The type of bpf_wq callbacks changed. So adapt to it and make use of
wq_callback_fn_t.

Signed-off-by: Benjamin Tissoires <bentiss@xxxxxxxxxx>

---

This is an RFC, and is not meant to be fully reviewed/applied as it is.
I'm posting this to show what I wanted to explain in
https://lore.kernel.org/bpf/mhkzkf4e23uvljtmwizwcxyuyat2tmfxn33xb4t7waafgmsa66@mcrzpj3b6ssx/
---
 tools/testing/selftests/bpf/bpf_experimental.h  |  3 +--
 tools/testing/selftests/bpf/progs/wq.c          | 10 ++++------
 tools/testing/selftests/bpf/progs/wq_failures.c |  4 ++--
 3 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
index 8b9cc87be4c4..0a35e6efccae 100644
--- a/tools/testing/selftests/bpf/bpf_experimental.h
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -494,8 +494,7 @@ extern void bpf_iter_css_destroy(struct bpf_iter_css *it) __weak __ksym;
 
 extern int bpf_wq_init(struct bpf_wq *wq, void *p__map, unsigned int flags) __weak __ksym;
 extern int bpf_wq_start(struct bpf_wq *wq, unsigned int flags) __weak __ksym;
-extern int bpf_wq_set_callback_impl(struct bpf_wq *wq,
-		int (callback_fn)(void *map, int *key, struct bpf_wq *wq),
+extern int bpf_wq_set_callback_impl(struct bpf_wq *wq, wq_callback_fn_t cb,
 		unsigned int flags__k, void *aux__ign) __ksym;
 #define bpf_wq_set_callback(timer, cb, flags) \
 	bpf_wq_set_callback_impl(timer, cb, flags, NULL)
diff --git a/tools/testing/selftests/bpf/progs/wq.c b/tools/testing/selftests/bpf/progs/wq.c
index 49e712acbf60..c8c88976baca 100644
--- a/tools/testing/selftests/bpf/progs/wq.c
+++ b/tools/testing/selftests/bpf/progs/wq.c
@@ -52,8 +52,7 @@ struct {
 __u32 ok;
 __u32 ok_sleepable;
 
-static int test_elem_callback(void *map, int *key,
-		int (callback_fn)(void *map, int *key, struct bpf_wq *wq))
+static int test_elem_callback(void *map, int *key, wq_callback_fn_t callback_fn)
 {
 	struct elem init = {}, *val;
 	struct bpf_wq *wq;
@@ -83,8 +82,7 @@ static int test_elem_callback(void *map, int *key,
 	return 0;
 }
 
-static int test_hmap_elem_callback(void *map, int *key,
-		int (callback_fn)(void *map, int *key, struct bpf_wq *wq))
+static int test_hmap_elem_callback(void *map, int *key, wq_callback_fn_t callback_fn)
 {
 	struct hmap_elem init = {}, *val;
 	struct bpf_wq *wq;
@@ -114,7 +112,7 @@ static int test_hmap_elem_callback(void *map, int *key,
 }
 
 /* callback for non sleepable workqueue */
-static int wq_callback(void *map, int *key, struct bpf_wq *work)
+static int wq_callback(struct bpf_map *map, int *key, struct bpf_wq *work)
 {
 	bpf_kfunc_common_test();
 	ok |= (1 << *key);
@@ -122,7 +120,7 @@ static int wq_callback(void *map, int *key, struct bpf_wq *work)
 }
 
 /* callback for sleepable workqueue */
-static int wq_cb_sleepable(void *map, int *key, struct bpf_wq *work)
+static int wq_cb_sleepable(struct bpf_map *map, int *key, struct bpf_wq *work)
 {
 	bpf_kfunc_call_test_sleepable();
 	ok_sleepable |= (1 << *key);
diff --git a/tools/testing/selftests/bpf/progs/wq_failures.c b/tools/testing/selftests/bpf/progs/wq_failures.c
index 4cbdb425f223..3d87ccb8286e 100644
--- a/tools/testing/selftests/bpf/progs/wq_failures.c
+++ b/tools/testing/selftests/bpf/progs/wq_failures.c
@@ -28,14 +28,14 @@ struct {
 } lru SEC(".maps");
 
 /* callback for non sleepable workqueue */
-static int wq_callback(void *map, int *key, struct bpf_wq *work)
+static int wq_callback(struct bpf_map *map, int *key, struct bpf_wq *work)
 {
 	bpf_kfunc_common_test();
 	return 0;
 }
 
 /* callback for sleepable workqueue */
-static int wq_cb_sleepable(void *map, int *key, struct bpf_wq *work)
+static int wq_cb_sleepable(struct bpf_map *map, int *key, struct bpf_wq *work)
 {
 	bpf_kfunc_call_test_sleepable();
 	return 0;

-- 
2.44.0





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