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-rw-r--r--kernel/bpf/devmap.c5
1 files changed, 1 insertions, 4 deletions
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index 371bd880ed58..5ae7cce5ef16 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -108,12 +108,9 @@ static struct bpf_map *dev_map_alloc(union bpf_attr *attr)
/* make sure page count doesn't overflow */
cost = (u64) dtab->map.max_entries * sizeof(struct bpf_dtab_netdev *);
cost += dev_map_bitmap_size(attr) * num_possible_cpus();
- if (cost >= U32_MAX - PAGE_SIZE)
- goto free_dtab;
/* if map size is larger than memlock limit, reject it */
- err = bpf_map_charge_init(&dtab->map.memory,
- round_up(cost, PAGE_SIZE) >> PAGE_SHIFT);
+ err = bpf_map_charge_init(&dtab->map.memory, cost);
if (err)
goto free_dtab;