[PATCH v3] cxl: Add cxl_num_decoders_committed() usage to cxl_test

[Dave Jiang <dave.jiang@intel.com>]

Commit 458ba8189cb4 ("cxl: Add cxl_decoders_committed() helper") missed the
conversion for cxl_test. Add usage of cxl_num_decoders_committed() to
replace the open coding.

Suggested-by: Alison Schofield <alison.schofield@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>

---
v3:
- Move export of symbol to cxl_test (Dan)
v2:
- Add missing changes, stg refresh foobar
---
 tools/testing/cxl/Kbuild             |    1 +
 tools/testing/cxl/cxl_core_exports.c |    7 +++++++
 tools/testing/cxl/test/cxl.c         |    5 +++--
 3 files changed, 11 insertions(+), 2 deletions(-)
 create mode 100644 tools/testing/cxl/cxl_core_exports.c

diff --git a/tools/testing/cxl/Kbuild b/tools/testing/cxl/Kbuild
index 90f3c9802ffb..95dc58b94178 100644
--- a/tools/testing/cxl/Kbuild
+++ b/tools/testing/cxl/Kbuild
@@ -62,5 +62,6 @@ cxl_core-$(CONFIG_TRACING) += $(CXL_CORE_SRC)/trace.o
 cxl_core-$(CONFIG_CXL_REGION) += $(CXL_CORE_SRC)/region.o
 cxl_core-y += config_check.o
 cxl_core-y += cxl_core_test.o
+cxl_core-y += cxl_core_exports.o
 
 obj-m += test/
diff --git a/tools/testing/cxl/cxl_core_exports.c b/tools/testing/cxl/cxl_core_exports.c
new file mode 100644
index 000000000000..077e6883921d
--- /dev/null
+++ b/tools/testing/cxl/cxl_core_exports.c
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2022 Intel Corporation. All rights reserved. */
+
+#include "cxl.h"
+
+/* Exporting of cxl_core symbols that are only used by cxl_test */
+EXPORT_SYMBOL_NS_GPL(cxl_num_decoders_committed, CXL);
diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c
index b88546299902..f4e517a0c774 100644
--- a/tools/testing/cxl/test/cxl.c
+++ b/tools/testing/cxl/test/cxl.c
@@ -669,10 +669,11 @@ static int mock_decoder_commit(struct cxl_decoder *cxld)
 		return 0;
 
 	dev_dbg(&port->dev, "%s commit\n", dev_name(&cxld->dev));
-	if (port->commit_end + 1 != id) {
+	if (cxl_num_decoders_committed(port) != id) {
 		dev_dbg(&port->dev,
 			"%s: out of order commit, expected decoder%d.%d\n",
-			dev_name(&cxld->dev), port->id, port->commit_end + 1);
+			dev_name(&cxld->dev), port->id,
+			cxl_num_decoders_committed(port));
 		return -EBUSY;
 	}