mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-21 01:54:51 +08:00
8c149eb011
The cxl_test machinery builds modified versions of the modules in drivers/cxl/ and intercepts some of their calls to allow cxl_test to inject mock CXL topologies for test. However, if cxl_test attempts the same with production modules, fireworks ensue as Luis discovered [1]. Prevent that scenario by arranging for cxl_test to check for a "watermark" symbol in each of the modules it expects to be modified before the test can run. This turns undefined runtime behavior or crashes into a safer failure to load the cxl_test module. Link: http://lore.kernel.org/r/20221209062919.1096779-1-mcgrof@kernel.org [1] Reported-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
7 lines
155 B
C
7 lines
155 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Copyright(c) 2022 Intel Corporation. All rights reserved. */
|
|
|
|
#include "watermark.h"
|
|
|
|
cxl_test_watermark(cxl_acpi);
|