diff options
| author | Ben Widawsky <ben.widawsky@intel.com> | 2022-01-23 16:29:53 -0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-02-08 22:57:29 -0800 |
| commit | 53fa1bff3426344d466d91e81f076eab677d0ece (patch) | |
| tree | e29317f8652ba42a4da2a3b98d90c11d6b65865c /drivers/cxl/core | |
| parent | d2b61ed2ff63fd9f294db8399c7a680ea7fe8a23 (diff) | |
cxl/core: Track port depth
In preparation for proving CXL subsystem usage of the device_lock()
order track the depth of ports with the expectation that shallower port
locks can be held over deeper port locks.
Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/164298419321.3018233.4469731547378993606.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl/core')
| -rw-r--r-- | drivers/cxl/core/port.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c index 73ff42a05473..f287d87da6d6 100644 --- a/drivers/cxl/core/port.c +++ b/drivers/cxl/core/port.c @@ -362,6 +362,8 @@ struct cxl_port *devm_cxl_add_port(struct device *host, struct device *uport, if (IS_ERR(port)) return port; + if (parent_port) + port->depth = parent_port->depth + 1; dev = &port->dev; if (parent_port) rc = dev_set_name(dev, "port%d", port->id); |