diff options
| author | Yury Norov [NVIDIA] <yury.norov@gmail.com> | 2025-09-10 03:36:41 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-09-11 18:52:20 -0700 |
| commit | 5551d21284702a5f36791aecc7735870d0423996 (patch) | |
| tree | a2bc94f160ba3382f3486e67597e7203bb919a59 /drivers/net/wireguard/queueing.h | |
| parent | 4094920b19f78f3af8c67731fb4ba27973b83468 (diff) | |
wireguard: queueing: simplify wg_cpumask_next_online()
wg_cpumask_choose_online() opencodes cpumask_nth(). Use it and make the
function significantly simpler. While there, fix opencoded cpu_online()
too.
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://patch.msgid.link/20250910013644.4153708-2-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/wireguard/queueing.h')
| -rw-r--r-- | drivers/net/wireguard/queueing.h | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/net/wireguard/queueing.h b/drivers/net/wireguard/queueing.h index 7eb76724b3ed..56314f98b6ba 100644 --- a/drivers/net/wireguard/queueing.h +++ b/drivers/net/wireguard/queueing.h @@ -104,16 +104,11 @@ static inline void wg_reset_packet(struct sk_buff *skb, bool encapsulating) static inline int wg_cpumask_choose_online(int *stored_cpu, unsigned int id) { - unsigned int cpu = *stored_cpu, cpu_index, i; + unsigned int cpu = *stored_cpu; + + if (unlikely(cpu >= nr_cpu_ids || !cpu_online(cpu))) + cpu = *stored_cpu = cpumask_nth(id % num_online_cpus(), cpu_online_mask); - if (unlikely(cpu >= nr_cpu_ids || - !cpumask_test_cpu(cpu, cpu_online_mask))) { - cpu_index = id % cpumask_weight(cpu_online_mask); - cpu = cpumask_first(cpu_online_mask); - for (i = 0; i < cpu_index; ++i) - cpu = cpumask_next(cpu, cpu_online_mask); - *stored_cpu = cpu; - } return cpu; } |