diff options
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index ac6bcb2a0784..096b3ff13f6b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -231,10 +231,13 @@ static bool use_backlog_threads(void) static inline void backlog_lock_irq_save(struct softnet_data *sd, unsigned long *flags) { - if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads()) + if (IS_ENABLED(CONFIG_PREEMPT_RT)) { spin_lock_irqsave(&sd->input_pkt_queue.lock, *flags); - else + } else { local_irq_save(*flags); + if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads()) + spin_lock(&sd->input_pkt_queue.lock); + } } static inline void backlog_lock_irq_disable(struct softnet_data *sd) @@ -248,9 +251,13 @@ static inline void backlog_lock_irq_disable(struct softnet_data *sd) static inline void backlog_unlock_irq_restore(struct softnet_data *sd, unsigned long flags) { - if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads()) - spin_unlock(&sd->input_pkt_queue.lock); - local_irq_restore(flags); + if (IS_ENABLED(CONFIG_PREEMPT_RT)) { + spin_unlock_irqrestore(&sd->input_pkt_queue.lock, flags); + } else { + if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads()) + spin_unlock(&sd->input_pkt_queue.lock); + local_irq_restore(flags); + } } static inline void backlog_unlock_irq_enable(struct softnet_data *sd) @@ -737,7 +744,7 @@ static struct net_device_path *dev_fwd_path(struct net_device_path_stack *stack) { int k = stack->num_paths++; - if (WARN_ON_ONCE(k >= NET_DEVICE_PATH_STACK_MAX)) + if (k >= NET_DEVICE_PATH_STACK_MAX) return NULL; return &stack->path[k]; |