diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ieee80211-mesh.h | 4 | ||||
| -rw-r--r-- | include/net/bluetooth/coredump.h | 2 | ||||
| -rw-r--r-- | include/net/codel.h | 5 | ||||
| -rw-r--r-- | include/net/codel_impl.h | 16 | ||||
| -rw-r--r-- | include/net/mac80211.h | 5 | ||||
| -rw-r--r-- | include/net/sock.h | 2 |
6 files changed, 30 insertions, 4 deletions
diff --git a/include/linux/ieee80211-mesh.h b/include/linux/ieee80211-mesh.h index 7eb15834531c..9e548b9173df 100644 --- a/include/linux/ieee80211-mesh.h +++ b/include/linux/ieee80211-mesh.h @@ -361,8 +361,7 @@ ieee80211_mesh_hwmp_perr_get_rcode(const u8 *ie, u8 dst_idx) /* IEEE Std 802.11-2016 9.4.2.113 PREQ element */ static inline bool ieee80211_mesh_preq_size_ok(const u8 *pos, u8 elen) { - struct ieee80211_mesh_hwmp_preq_bottom *preq_elem_bottom = - ieee80211_mesh_hwmp_preq_get_bottom(pos); + struct ieee80211_mesh_hwmp_preq_bottom *preq_elem_bottom; u8 target_count; int needed; @@ -378,6 +377,7 @@ static inline bool ieee80211_mesh_preq_size_ok(const u8 *pos, u8 elen) if (elen < needed) return false; + preq_elem_bottom = ieee80211_mesh_hwmp_preq_get_bottom(pos); target_count = preq_elem_bottom->target_count; /* IEEE Std 802.11-2016 Table 14-10 to 14-16 */ if (target_count < 1) diff --git a/include/net/bluetooth/coredump.h b/include/net/bluetooth/coredump.h index 1f071ab55416..acc1849f66c0 100644 --- a/include/net/bluetooth/coredump.h +++ b/include/net/bluetooth/coredump.h @@ -70,6 +70,7 @@ struct hci_devcoredump { const char *hci_devcd_state_name(enum devcoredump_state state); void hci_devcd_reset(struct hci_dev *hdev); +void hci_devcd_shutdown(struct hci_dev *hdev); void hci_devcd_rx(struct work_struct *work); void hci_devcd_timeout(struct work_struct *work); @@ -89,6 +90,7 @@ static inline const char *hci_devcd_state_name(enum devcoredump_state state) } static inline void hci_devcd_reset(struct hci_dev *hdev) {} +static inline void hci_devcd_shutdown(struct hci_dev *hdev) {} static inline void hci_devcd_rx(struct work_struct *work) {} static inline void hci_devcd_timeout(struct work_struct *work) {} diff --git a/include/net/codel.h b/include/net/codel.h index aa80f744826c..183d43c2bd43 100644 --- a/include/net/codel.h +++ b/include/net/codel.h @@ -140,6 +140,11 @@ struct codel_vars { /* needed shift to get a Q0.32 number from rec_inv_sqrt */ #define REC_INV_SQRT_SHIFT (32 - REC_INV_SQRT_BITS) +/* Cap on drops per codel_dequeue() call: the loop's work depends on the + * idle gap and backlog, both outside our control; resync when exceeded. + */ +#define CODEL_MAX_DROPS_PER_DEQUEUE 256 + /** * struct codel_stats - contains codel shared variables and stats * @maxpacket: largest packet we've seen so far diff --git a/include/net/codel_impl.h b/include/net/codel_impl.h index 2c1f0ec309e9..8f26132d45b7 100644 --- a/include/net/codel_impl.h +++ b/include/net/codel_impl.h @@ -93,12 +93,17 @@ static void codel_Newton_step(struct codel_vars *vars) * CoDel control_law is t + interval/sqrt(count) * We maintain in rec_inv_sqrt the reciprocal value of sqrt(count) to avoid * both sqrt() and divide operation. + * + * Clamp the increment to at least 1 tick: a very small interval (or a + * large count) can truncate it to zero, stalling the dropping loop. */ static codel_time_t codel_control_law(codel_time_t t, codel_time_t interval, u32 rec_inv_sqrt) { - return t + reciprocal_scale(interval, rec_inv_sqrt << REC_INV_SQRT_SHIFT); + return t + max_t(u32, 1, + reciprocal_scale(interval, + rec_inv_sqrt << REC_INV_SQRT_SHIFT)); } static bool codel_should_drop(const struct sk_buff *skb, @@ -154,6 +159,7 @@ static struct sk_buff *codel_dequeue(void *ctx, codel_skb_dequeue_t dequeue_func) { struct sk_buff *skb = dequeue_func(vars, ctx); + unsigned int drops = 0; codel_time_t now; bool drop; @@ -180,6 +186,14 @@ static struct sk_buff *codel_dequeue(void *ctx, */ while (vars->dropping && codel_time_after_eq(now, vars->drop_next)) { + if (++drops > CODEL_MAX_DROPS_PER_DEQUEUE) { + /* fell far behind the schedule */ + WRITE_ONCE(vars->drop_next, + codel_control_law(now, + params->interval, + vars->rec_inv_sqrt)); + break; + } /* dont care of possible wrap * since there is no more divide. */ diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 9d1fac6e8082..ed6a5874ff96 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -7638,11 +7638,14 @@ bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw, * * @skb: packet injected by userspace * @dev: the &struct device of this 802.11 device + * @chandef: the channel definition the frame will be transmitted on, or + * %NULL to skip the bandwidth checks * * Return: %true if the radiotap header was parsed, %false otherwise */ bool ieee80211_parse_tx_radiotap(struct sk_buff *skb, - struct net_device *dev); + struct net_device *dev, + const struct cfg80211_chan_def *chandef); /** * struct ieee80211_noa_data - holds temporary data for tracking P2P NoA state diff --git a/include/net/sock.h b/include/net/sock.h index 51185222aac2..60ea55dc1885 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2312,6 +2312,8 @@ static inline void sk_gso_disable(struct sock *sk) sk->sk_route_caps &= ~NETIF_F_GSO_MASK; } +bool sk_has_decrypt_user(const struct sock *sk); + static inline int skb_do_copy_data_nocache(struct sock *sk, struct sk_buff *skb, struct iov_iter *from, char *to, int copy, int offset) |