diff options
| author | Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com> | 2025-01-21 20:46:20 +0300 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2025-04-24 08:24:38 +0300 |
| commit | cdf9956b6974206e1fd20e9bd30842df9714c5b8 (patch) | |
| tree | b7a91a585f4f0bce5516db9741e7752e54970e81 | |
| parent | 4fd7a1f0f7f281dcbdf2e42a2e30b6d2159deaf4 (diff) | |
| download | linux-cdf9956b6974206e1fd20e9bd30842df9714c5b8.tar.xz | |
thunderbolt: Introduce domain event message handler
This patch introduces a function that can be used to send uevent
notifications in the domain to userspace. For instance, it can indicate
that a DisplayPort tunnel could not be established due to insufficient
bandwidth. Userspace can then forward to user via dialog or similar.
Convert boot_acl_store() to call this instead of open-coding.
Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
| -rw-r--r-- | drivers/thunderbolt/domain.c | 2 | ||||
| -rw-r--r-- | drivers/thunderbolt/tb.h | 13 |
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/thunderbolt/domain.c b/drivers/thunderbolt/domain.c index 144d0232a70c..a3a7c8059eee 100644 --- a/drivers/thunderbolt/domain.c +++ b/drivers/thunderbolt/domain.c @@ -217,7 +217,7 @@ static ssize_t boot_acl_store(struct device *dev, struct device_attribute *attr, ret = tb->cm_ops->set_boot_acl(tb, acl, tb->nboot_acl); if (!ret) { /* Notify userspace about the change */ - kobject_uevent(&tb->dev.kobj, KOBJ_CHANGE); + tb_domain_event(tb, NULL); } mutex_unlock(&tb->lock); diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index 4e2faa0d5dba..87afd5a7c504 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -804,6 +804,19 @@ static inline void tb_domain_put(struct tb *tb) put_device(&tb->dev); } +/** + * tb_domain_event() - Notify userspace about an event in domain + * @tb: Domain where event occurred + * @envp: Array of uevent environment strings (can be %NULL) + * + * This function provides a way to notify userspace about any events + * that take place in the domain. + */ +static inline void tb_domain_event(struct tb *tb, char *envp[]) +{ + kobject_uevent_env(&tb->dev.kobj, KOBJ_CHANGE, envp); +} + struct tb_nvm *tb_nvm_alloc(struct device *dev); int tb_nvm_read_version(struct tb_nvm *nvm); int tb_nvm_validate(struct tb_nvm *nvm); |