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| author | Eric Dumazet <edumazet@google.com> | 2023-03-17 15:55:30 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-03-18 12:23:33 +0000 |
| commit | 94c540fbfc80ef95ec398fc77da1920de2946edb (patch) | |
| tree | 67b2d9b2150997513e35d9943517dd294b8c8c2f /include/linux/udp.h | |
| parent | 39a86d059a78bf29b66dd8bbeab04af1d55c02ba (diff) | |
| download | linux-stable-94c540fbfc80ef95ec398fc77da1920de2946edb.tar.gz linux-stable-94c540fbfc80ef95ec398fc77da1920de2946edb.tar.bz2 linux-stable-94c540fbfc80ef95ec398fc77da1920de2946edb.zip | |
udp: preserve const qualifier in udp_sk()
We can change udp_sk() to propagate const qualifier of its argument,
thanks to container_of_const()
This should avoid some potential errors caused by accidental
(const -> not_const) promotion.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/udp.h')
| -rw-r--r-- | include/linux/udp.h | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/include/linux/udp.h b/include/linux/udp.h index a2892e151644..43c1fb2d2c21 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -97,10 +97,7 @@ struct udp_sock { #define UDP_MAX_SEGMENTS (1 << 6UL) -static inline struct udp_sock *udp_sk(const struct sock *sk) -{ - return (struct udp_sock *)sk; -} +#define udp_sk(ptr) container_of_const(ptr, struct udp_sock, inet.sk) static inline void udp_set_no_check6_tx(struct sock *sk, bool val) { |