[RFC PATCH v5 1/7] x86/resctrl: Stop setting event_group::force_off on RMID shortage

[Tony Luck]

Drop the force_off assignment from all_regions_have_sufficient_rmid().
This preserves current single-enumeration behaviour while preparing for
the upcoming per-mount enumeration, where latching force_off would
incorrectly suppress re-enumeration on subsequent mounts - even when the
user explicitly requested the feature via "rdt={feature}".

Signed-off-by: Tony Luck <tony.luck@xxxxxxxxx>
---
 arch/x86/kernel/cpu/resctrl/intel_aet.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl/intel_aet.c b/arch/x86/kernel/cpu/resctrl/intel_aet.c
index 89b8b619d5d5..e2af700bca04 100644
--- a/arch/x86/kernel/cpu/resctrl/intel_aet.c
+++ b/arch/x86/kernel/cpu/resctrl/intel_aet.c
@@ -60,8 +60,8 @@ struct pmt_event {
  *			data for all telemetry regions of type @pfname.
  *			Valid if the system supports the event group,
  *			NULL otherwise.
- * @force_off:		True when "rdt" command line or architecture code disables
- *			this event group due to insufficient RMIDs.
+ * @force_off:		True when "rdt" command line disables this event group
+ *			to avoid system limitations due to insufficient RMIDs.
  * @force_on:		True when "rdt" command line overrides disable of this
  *			event group.
  * @guid:		Unique number per XML description file.
@@ -214,10 +214,8 @@ static bool all_regions_have_sufficient_rmid(struct event_group *e, struct pmt_f
 		if (!p->regions[i].addr)
 			continue;
 		tr = &p->regions[i];
-		if (tr->num_rmids < e->num_rmid) {
-			e->force_off = true;
+		if (tr->num_rmids < e->num_rmid)
 			return false;
-		}
 	}
 
 	return true;
-- 
2.53.0