In kernel 4.15 the field sk_pacing_shift was introduced to allow
(wifi) drivers to change the behaviour of TSQ. In 4.16 a helper
function was added which mac80211 is using. So backport the helper
which is just a stub for kernels prior to 4.15.
Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
---
As noted in the commit message this patch makes the helper function
an empty stub for kernels prior to 4.15, which introduced the field
sk_pacing_shift. Maybe it would be possible to accomplish similar
thing by modifying struct sk_buff::true_size, but I am not too familiar
with TSQ so I did not go there.
Regards,
Arend
---
backport/backport-include/net/sock.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/backport/backport-include/net/sock.h b/backport/backport-include/net/sock.h
index 89191f3..39bf008 100644
--- a/backport/backport-include/net/sock.h
+++ b/backport/backport-include/net/sock.h
@@ -63,4 +63,16 @@ static inline void sk_clear_bit(int nr, struct sock *sk)
}
#endif /* < 4.5 */
+#if LINUX_VERSION_IS_LESS(4,16,0)
+#define sk_pacing_shift_update LINUX_BACKPORT(sk_pacing_shift_update)
+static inline void sk_pacing_shift_update(struct sock *sk, int val)
+{
+#if LINUX_VERSION_IS_GEQ(4,15,0)
+ if (!sk || !sk_fullsock(sk) || sk->sk_pacing_shift == val)
+ return;
+ sk->sk_pacing_shift = val;
+#endif /* >= 4.15 */
+}
+#endif /* < 4.16 */
+
#endif /* __BACKPORT_NET_SOCK_H */
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe backports" in
