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authorHaimin Zhang <tcs_kernel@tencent.com>2021-12-29 19:20:02 +0800
committerAlexei Starovoitov <ast@kernel.org>2021-12-29 09:38:31 -0800
commit3ccdcee28415c4226de05438b4d89eb5514edf73 (patch)
tree339f6dfbed7e292fc81c4f1751f4c528a7983229 /kernel
parentb6459415b384cb829f0b2a4268f211c789f6cf0b (diff)
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bpf: Add missing map_get_next_key method to bloom filter map.
Without it, kernel crashes in map_get_next_key(). Fixes: 9330986c0300 ("bpf: Add bloom filter map implementation") Reported-by: TCS Robot <tcs_robot@tencent.com> Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Joanne Koong <joannekoong@fb.com> Link: https://lore.kernel.org/bpf/1640776802-22421-1-git-send-email-tcs.kernel@gmail.com
Diffstat (limited to 'kernel')
-rw-r--r--kernel/bpf/bloom_filter.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/bpf/bloom_filter.c b/kernel/bpf/bloom_filter.c
index 277a05e9c984..b141a1346f72 100644
--- a/kernel/bpf/bloom_filter.c
+++ b/kernel/bpf/bloom_filter.c
@@ -82,6 +82,11 @@ static int bloom_map_delete_elem(struct bpf_map *map, void *value)
return -EOPNOTSUPP;
}
+static int bloom_map_get_next_key(struct bpf_map *map, void *key, void *next_key)
+{
+ return -EOPNOTSUPP;
+}
+
static struct bpf_map *bloom_map_alloc(union bpf_attr *attr)
{
u32 bitset_bytes, bitset_mask, nr_hash_funcs, nr_bits;
@@ -192,6 +197,7 @@ const struct bpf_map_ops bloom_filter_map_ops = {
.map_meta_equal = bpf_map_meta_equal,
.map_alloc = bloom_map_alloc,
.map_free = bloom_map_free,
+ .map_get_next_key = bloom_map_get_next_key,
.map_push_elem = bloom_map_push_elem,
.map_peek_elem = bloom_map_peek_elem,
.map_pop_elem = bloom_map_pop_elem,