diff options
| author | Maxime Ripard <mripard@kernel.org> | 2026-03-12 08:25:41 +0100 |
|---|---|---|
| committer | Maxime Ripard <mripard@kernel.org> | 2026-03-12 08:25:41 +0100 |
| commit | f08ceb71c5a5615577e7c841e1e00a89f495ab51 (patch) | |
| tree | a024ee0aa3a8c5f3da518c7a9e15c6be131dd4f5 /net/core/devmem.c | |
| parent | f66d6cc6891e41be96380261943837b1909107b3 (diff) | |
| parent | 58351f46de26bcc4403f9972f7aed430d15cbd03 (diff) | |
| download | lwn-f08ceb71c5a5615577e7c841e1e00a89f495ab51.tar.gz lwn-f08ceb71c5a5615577e7c841e1e00a89f495ab51.zip | |
Merge drm/drm-next into drm-misc-next
Biju Das needs a patch for rz-du merged in 7.0-rc3
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Diffstat (limited to 'net/core/devmem.c')
| -rw-r--r-- | net/core/devmem.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/core/devmem.c b/net/core/devmem.c index 8c9aad776bf4..69d79aee07ef 100644 --- a/net/core/devmem.c +++ b/net/core/devmem.c @@ -396,7 +396,8 @@ struct net_devmem_dmabuf_binding *net_devmem_get_binding(struct sock *sk, * net_device. */ dst_dev = dst_dev_rcu(dst); - if (unlikely(!dst_dev) || unlikely(dst_dev != binding->dev)) { + if (unlikely(!dst_dev) || + unlikely(dst_dev != READ_ONCE(binding->dev))) { err = -ENODEV; goto out_unlock; } @@ -513,7 +514,8 @@ static void mp_dmabuf_devmem_uninstall(void *mp_priv, xa_erase(&binding->bound_rxqs, xa_idx); if (xa_empty(&binding->bound_rxqs)) { mutex_lock(&binding->lock); - binding->dev = NULL; + ASSERT_EXCLUSIVE_WRITER(binding->dev); + WRITE_ONCE(binding->dev, NULL); mutex_unlock(&binding->lock); } break; |