diff mbox series

[v6,1/4] cxl: Remove checking of iter in cxl_endpoint_get_perf_coordinates()

Message ID 20240401233445.3057332-2-dave.jiang@intel.com
State Superseded
Headers show
Series cxl: access_coordinate validity fixes for 6.9 | expand

Commit Message

Dave Jiang April 1, 2024, 11:32 p.m. UTC 
The while() loop in cxl_endpoint_get_perf_coordinates() checks to see if
'iter' is valid as part of the condition breaking out of the loop.
is_cxl_root() will stop the loop before the next iteration could go NULL.
Remove the iter check.

The presence of the iter or removing the iter does not impact the behavior
of the code. This is a code clean up and not a bug fix.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
---
v6:
- Simplify commit log. (Dan)
---
 drivers/cxl/core/port.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index 2b0cab556072..6cbde50a742b 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -2197,7 +2197,7 @@  int cxl_endpoint_get_perf_coordinates(struct cxl_port *port,
 	 * port each iteration. If the parent is cxl root then there is
 	 * nothing to gather.
 	 */
-	while (iter && !is_cxl_root(to_cxl_port(iter->dev.parent))) {
+	while (!is_cxl_root(to_cxl_port(iter->dev.parent))) {
 		cxl_coordinates_combine(&c, &c, &dport->sw_coord);
 		c.write_latency += dport->link_latency;
 		c.read_latency += dport->link_latency;