This is a note to let you know that I've just added the patch titled
ACPI: HMAT: Remove register of memory node for generic target
to the 6.8-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
acpi-hmat-remove-register-of-memory-node-for-generic.patch
and it can be found in the queue-6.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ec0ac153b89d5cad22cc745d9a8a8975e3f210b4
Author: Dave Jiang <dave.jiang@xxxxxxxxx>
Date: Fri Mar 8 14:59:20 2024 -0700
ACPI: HMAT: Remove register of memory node for generic target
[ Upstream commit 54b9460b0a28c4c76a7b455ec1b3b61a13e97291 ]
For generic targets, there's no reason to call
register_memory_node_under_compute_node() with the access levels that are
only visible to HMAT handling code. Only update the attributes and rename
hmat_register_generic_target_initiators() to hmat_update_generic_target().
The original call path ends up triggering register_memory_node_under_compute_node().
Although the access level would be "3" and not impact any current node arrays, it
introduces unwanted data into the numa node access_coordinate array.
Fixes: a3a3e341f169 ("acpi: numa: Add setting of generic port system locality attributes")
Cc: Rafael J. Wysocki <rafael@xxxxxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Tested-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Link: https://lore.kernel.org/r/20240308220055.2172956-2-dave.jiang@xxxxxxxxx
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c
index d6b85f0f6082f..a26e7793ec4ef 100644
--- a/drivers/acpi/numa/hmat.c
+++ b/drivers/acpi/numa/hmat.c
@@ -770,12 +770,12 @@ static void __hmat_register_target_initiators(struct memory_target *target,
}
}
-static void hmat_register_generic_target_initiators(struct memory_target *target)
+static void hmat_update_generic_target(struct memory_target *target)
{
static DECLARE_BITMAP(p_nodes, MAX_NUMNODES);
- __hmat_register_target_initiators(target, p_nodes,
- NODE_ACCESS_CLASS_GENPORT_SINK);
+ hmat_update_target_attrs(target, p_nodes,
+ NODE_ACCESS_CLASS_GENPORT_SINK);
}
static void hmat_register_target_initiators(struct memory_target *target)
@@ -835,7 +835,7 @@ static void hmat_register_target(struct memory_target *target)
*/
mutex_lock(&target_lock);
if (*(u16 *)target->gen_port_device_handle) {
- hmat_register_generic_target_initiators(target);
+ hmat_update_generic_target(target);
target->registered = true;
}
mutex_unlock(&target_lock);
