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| author | Guixin Liu <kanie@linux.alibaba.com> | 2026-08-31 17:22:16 +0800 |
|---|---|---|
| committer | Dave Jiang <dave.jiang@intel.com> | 2026-09-17 20:05:17 -0700 |
| commit | 58b2b1ef28024093063de536c05aaea792226e24 (patch) | |
| tree | babba54c34700d62643eb3719ef042140a0800c3 /tools/perf/scripts/python/stackcollapse.py | |
| parent | 97b74de26c81885a6447f5fe87641a2a136f8c7c (diff) | |
| download | linux-next-58b2b1ef28024093063de536c05aaea792226e24.tar.gz linux-next-58b2b1ef28024093063de536c05aaea792226e24.zip | |
cxl/port: Fix uninitialized coordinates reported for RCDs
cxl_endpoint_get_perf_coordinates() returns success for a Restricted CXL
Device without calculating coordinates, so the caller's output array is
left uninitialized. Callers treat it as valid and can expose the stack
residue as access coordinates.
Initialize the coordinates to zero before returning for an RCD. Zeroing in
the helper rather than at the caller keeps the @coord output contract the
exported function documents.
Reported by the Sashiko review bot.
Fixes: 5d211c709059 ("cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH")
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Reviewed-by: Richard Cheng <icheng@nvidia.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
Link: https://patch.msgid.link/20260831092216.540644-3-kanie@linux.alibaba.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions