diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2024-10-03 10:05:55 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-10-10 13:13:33 -0700 |
| commit | 9c0fc36ec493d20599cf088d21b6bddcdc184242 (patch) | |
| tree | 79d8fb91469d59cc1dd0a55477778f0a1167de8f /kernel/trace/ring_buffer.c | |
| parent | net/smc: Address spelling errors (diff) | |
| parent | Merge tag 'net-6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff) | |
| download | linux-9c0fc36ec493d20599cf088d21b6bddcdc184242.tar.gz linux-9c0fc36ec493d20599cf088d21b6bddcdc184242.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.12-rc3).
No conflicts and no adjacent changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 77dc0b25140e..fb04445f92c3 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -2337,9 +2337,12 @@ static struct trace_buffer *alloc_buffer(unsigned long size, unsigned flags, if (!buffer->buffers[cpu]) goto fail_free_buffers; - ret = cpuhp_state_add_instance(CPUHP_TRACE_RB_PREPARE, &buffer->node); - if (ret < 0) - goto fail_free_buffers; + /* If already mapped, do not hook to CPU hotplug */ + if (!start) { + ret = cpuhp_state_add_instance(CPUHP_TRACE_RB_PREPARE, &buffer->node); + if (ret < 0) + goto fail_free_buffers; + } mutex_init(&buffer->mutex); |