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| author | Mohanram Meenakshisundaram <mohanram.meenakshisundaram@intel.com> | 2026-05-14 23:19:18 +0530 |
|---|---|---|
| committer | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2026-05-15 21:10:16 +0200 |
| commit | ff1d386a8359746d9699ac30336e3b0684c68958 (patch) | |
| tree | 2efb5fe1cd064c6a4b202738c8de84df04c4d553 /include/linux/debugobjects.h | |
| parent | 314e31c9a8a1c421ee4f7f755b9348aefbbca090 (diff) | |
drm/xe/pf: Fix CFI failure in debugfs access
Reading debugfs file (/sys/kernel/debug/dri/0/gt*/pf/adverse_events)
with CFI (Control Flow Integrity) enabled, the kernel panics at
xe_gt_debugfs_simple_show+0x82/0xc0.
xe_gt_debugfs_simple_show() declare a function pointer expecting int
return type, but xe_gt_sriov_pf_monitor_print_events() is void return
type, leading to CFI failure and kernel panic.
[507620.973657] CFI failure at xe_gt_debugfs_simple_show+0x82/0xc0 [xe]
(target: xe_gt_sriov_pf_monitor_print_events+0x0/0x130 [xe]; expected
type: 0xd72c7139)
Fix xe_gt_sriov_pf_monitor_print_events() function by updating to return
an int type.
Fixes: 1c99d3d3edab ("drm/xe/pf: Expose PF monitor details via debugfs")
Signed-off-by: Mohanram Meenakshisundaram <mohanram.meenakshisundaram@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20260514174918.1556357-2-mohanram.meenakshisundaram@intel.com
Diffstat (limited to 'include/linux/debugobjects.h')
0 files changed, 0 insertions, 0 deletions