From: "Luis R. Rodriguez" <[email protected]>

We'll soon add generic support for asynchronous probe, before
that gets merged lets let drivers annotate if they should never
probe asynchronously.

Cc: Tejun Heo <[email protected]>
Cc: Arjan van de Ven <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Doug Thompson <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Luis R. Rodriguez <[email protected]>
---
 include/linux/device.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/device.h b/include/linux/device.h
index 43d183a..4de6328 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -200,6 +200,10 @@ extern struct klist *bus_get_device_klist(struct bus_type 
*bus);
  * @owner:     The module owner.
  * @mod_name:  Used for built-in modules.
  * @suppress_bind_attrs: Disables bind/unbind via sysfs.
+ * @sync_probe: requests probe to be run always be run synchronously even
+ *     if userspace asked us to run asynchronously. Some devices drivers
+ *     may be known to not work well with async probe, use this to annotate
+ *     your driver if you know it needs synchronous probe.
  * @of_match_table: The open firmware table.
  * @acpi_match_table: The ACPI match table.
  * @probe:     Called to query the existence of a specific device,
@@ -233,6 +237,7 @@ struct device_driver {
        const char              *mod_name;      /* used for built-in modules */
 
        bool suppress_bind_attrs;       /* disables bind/unbind via sysfs */
+       bool sync_probe;
 
        const struct of_device_id       *of_match_table;
        const struct acpi_device_id     *acpi_match_table;
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to