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| author | Tina Zhang <tina.zhang@intel.com> | 2019-05-23 01:18:36 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2019-05-30 06:30:15 +0300 |
| commit | 387a4c2b55291b37e245c840813bd8a8bd06ed49 (patch) | |
| tree | 296bfc78a7ff9e249c6e10297bea3ee6a757fd8a /net/ipv6/ip6_fib.c | |
| parent | 591c39ffac4ab1ddf2ea6d49331cb614e0682b28 (diff) | |
| download | linux-387a4c2b55291b37e245c840813bd8a8bd06ed49.tar.xz | |
drm/i915/gvt: Initialize intel_gvt_gtt_entry in stack
Stack struct intel_gvt_gtt_entry value needs to be initialized before
being used, as the fields may contain garbage values.
W/o this patch, set_ggtt_entry prints:
-------------------------------------
274.046840: set_ggtt_entry: vgpu1:set ggtt entry 0x9bed8000ffffe900
274.046846: set_ggtt_entry: vgpu1:set ggtt entry 0xe55df001
274.046852: set_ggtt_entry: vgpu1:set ggtt entry 0x9bed8000ffffe900
0x9bed8000 is the stack grabage.
W/ this patch, set_ggtt_entry prints:
------------------------------------
274.046840: set_ggtt_entry: vgpu1:set ggtt entry 0xffffe900
274.046846: set_ggtt_entry: vgpu1:set ggtt entry 0xe55df001
274.046852: set_ggtt_entry: vgpu1:set ggtt entry 0xffffe900
v2:
- Initialize during declaration. (Zhenyu)
Fixes: 7598e8700e9a ("drm/i915/gvt: Missed to cancel dma map for ggtt entries")
Cc: stable@vger.kernel.org # v4.20+
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'net/ipv6/ip6_fib.c')
0 files changed, 0 insertions, 0 deletions