linux-kernel - [PATCH bpf-next v4 05/12] bpf: selftests: Fix bpf_map_sum_elem

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Date: Sat,  8 Jun 2024 15:16:01 -0600
From: Daniel Xu <dxu@...uu.xyz>
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Subject: [PATCH bpf-next v4 05/12] bpf: selftests: Fix bpf_map_sum_elem_count() kfunc prototype

The prototype in progs/map_percpu_stats.c is not in line with how the
actual kfuncs are defined in kernel/bpf/map_iter.c. This causes
compilation errors when kfunc prototypes are generated from BTF.

Fix by aligning with actual kfunc definitions.

Signed-off-by: Daniel Xu <dxu@...uu.xyz>
---
 tools/testing/selftests/bpf/progs/map_percpu_stats.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/map_percpu_stats.c b/tools/testing/selftests/bpf/progs/map_percpu_stats.c
index 10b2325c1720..63245785eb69 100644
--- a/tools/testing/selftests/bpf/progs/map_percpu_stats.c
+++ b/tools/testing/selftests/bpf/progs/map_percpu_stats.c
@@ -7,7 +7,7 @@
 
 __u32 target_id;
 
-__s64 bpf_map_sum_elem_count(struct bpf_map *map) __ksym;
+__s64 bpf_map_sum_elem_count(const struct bpf_map *map) __ksym;
 
 SEC("iter/bpf_map")
 int dump_bpf_map(struct bpf_iter__bpf_map *ctx)
-- 
2.44.0