linux-kernel - [PATCH 5.16 0489/1017] tools/testing/cxl: Fix root port to host bridge assignment

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Date:   Tue,  5 Apr 2022 09:23:22 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Dan Williams <dan.j.williams@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 0489/1017] tools/testing/cxl: Fix root port to host bridge assignment

From: Dan Williams <dan.j.williams@...el.com>

[ Upstream commit a4a0ce242fcd7022349212c4e2f795762e6ff050 ]

Mocked root-ports are meant to be round-robin assigned to host-bridges.

Fixes: 67dcdd4d3b83 ("tools/testing/cxl: Introduce a mocked-up CXL port hierarchy")
Link: https://lore.kernel.org/r/164298431629.3018233.14004377108116384485.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/cxl/test/cxl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c
index cb32f9e27d5d..5a39b3fdcac4 100644
--- a/tools/testing/cxl/test/cxl.c
+++ b/tools/testing/cxl/test/cxl.c
@@ -488,7 +488,7 @@ static __init int cxl_test_init(void)
 
 	for (i = 0; i < ARRAY_SIZE(cxl_root_port); i++) {
 		struct platform_device *bridge =
-			cxl_host_bridge[i / NR_CXL_ROOT_PORTS];
+			cxl_host_bridge[i % ARRAY_SIZE(cxl_host_bridge)];
 		struct platform_device *pdev;
 
 		pdev = platform_device_alloc("cxl_root_port", i);
-- 
2.34.1