From ae6084b739925d84ef4a481d8eaa2187455f2e2f Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 17 Mar 2023 15:55:34 +0000 Subject: dccp: preserve const qualifier in dccp_sk() We can change dccp_sk() to propagate its argument const qualifier, thanks to container_of_const(). Signed-off-by: Eric Dumazet Reviewed-by: Simon Horman Signed-off-by: David S. Miller --- include/linux/dccp.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/include/linux/dccp.h b/include/linux/dccp.h index 07e547c02fd8..325af611909f 100644 --- a/include/linux/dccp.h +++ b/include/linux/dccp.h @@ -305,10 +305,8 @@ struct dccp_sock { struct timer_list dccps_xmit_timer; }; -static inline struct dccp_sock *dccp_sk(const struct sock *sk) -{ - return (struct dccp_sock *)sk; -} +#define dccp_sk(ptr) container_of_const(ptr, struct dccp_sock, \ + dccps_inet_connection.icsk_inet.sk) static inline const char *dccp_role(const struct sock *sk) { -- cgit