docs: fix 'make htmldocs' warning in perf

Fix following 'make htmldocs' warnings:
./Documentation/admin-guide/perf/hisi-pcie-pmu.rst: WARNING:
document isn't included in any toctree

Fixes: c8602008e247 ("docs: perf: Add description for HiSilicon PCIe PMU driver")
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/20220228031700.1669086-1-wanjiabing@vivo.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

diff --git a/Documentation/admin-guide/perf/index.rst b/Documentation/admin-guide/perf/index.rst
index 5a8f252..69b23f0 100644 (file)
--- a/Documentation/admin-guide/perf/index.rst
+++ b/Documentation/admin-guide/perf/index.rst
@@ -8,6 +8,7 @@ Performance monitor support
    :maxdepth: 1
 
    hisi-pmu
+   hisi-pcie-pmu
    imx-ddr
    qcom_l2_pmu
    qcom_l3_pmu