The res variable has been initialized to 0, and the number of prots being used will not exceed MAX_INT, so there is no need to judge whether it is greater than 0 before returning. Refer to the implementation of sock_inuse_get. Signed-off-by: Li Zetao <lizetao1@xxxxxxxxxx> --- net/core/sock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/core/sock.c b/net/core/sock.c index bbe4c58470c3..52bfc86a2f37 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3800,7 +3800,7 @@ int sock_prot_inuse_get(struct net *net, struct proto *prot) for_each_possible_cpu(cpu) res += per_cpu_ptr(net->core.prot_inuse, cpu)->val[idx]; - return res >= 0 ? res : 0; + return res; } EXPORT_SYMBOL_GPL(sock_prot_inuse_get); -- 2.34.1
