diff --git a/drivers/hwtracing/coresight/coresight-tmc-etr.c b/drivers/hwtracing/coresight/coresight-tmc-etr.c
index fc0a946053dd..cee82e52c4ea 100644
--- a/drivers/hwtracing/coresight/coresight-tmc-etr.c
+++ b/drivers/hwtracing/coresight/coresight-tmc-etr.c
@@ -1367,9 +1367,7 @@ EXPORT_SYMBOL_GPL(tmc_etr_get_buffer);
 
 /*
  * alloc_etr_buf: Allocate ETR buffer for use by perf.
- * The size of the hardware buffer is dependent on the size configured
- * via sysfs and the perf ring buffer size. We prefer to allocate the
- * largest possible size, scaling down the size by half until it
+ * Allocate the largest possible size, scaling down the size by half until it
  * reaches a minimum limit (1M), beyond which we give up.
  */
 static struct etr_buf *
@@ -1378,36 +1376,26 @@ alloc_etr_buf(struct tmc_drvdata *drvdata, struct perf_event *event,
 {
 	int node;
 	struct etr_buf *etr_buf;
-	unsigned long size;
+	ssize_t size;
 
 	node = (event->cpu == -1) ? NUMA_NO_NODE : cpu_to_node(event->cpu);
-	/*
-	 * Try to match the perf ring buffer size if it is larger
-	 * than the size requested via sysfs.
-	 */
-	if ((nr_pages << PAGE_SHIFT) > drvdata->size) {
-		etr_buf = tmc_alloc_etr_buf(drvdata, ((ssize_t)nr_pages << PAGE_SHIFT),
-					    0, node, NULL);
-		if (!IS_ERR(etr_buf))
-			goto done;
-	}
+
+	/* Use the minimum limit if the required size is smaller */
+	size = nr_pages << PAGE_SHIFT;
+	size = max_t(ssize_t, size, TMC_ETR_PERF_MIN_BUF_SIZE);
 
 	/*
-	 * Else switch to configured size for this ETR
-	 * and scale down until we hit the minimum limit.
+	 * Try to allocate the required size for this ETR, if failed scale
+	 * down until we hit the minimum limit.
 	 */
-	size = drvdata->size;
 	do {
 		etr_buf = tmc_alloc_etr_buf(drvdata, size, 0, node, NULL);
 		if (!IS_ERR(etr_buf))
-			goto done;
+			return etr_buf;
 		size /= 2;
 	} while (size >= TMC_ETR_PERF_MIN_BUF_SIZE);
 
 	return ERR_PTR(-ENOMEM);
-
-done:
-	return etr_buf;
 }
 
 static struct etr_buf *