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Commit 1e431a4b authored by Melody Hsu's avatar Melody Hsu
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Reject duplicate layer stacks in SF 

Different displays could try to assign the same layer stack ID,
causing potential race conditions when releasing fences.

Fixes: b/370358572
Test: atest SurfaceFlinger_test, atest MultiDisplayTest
Flag: com.android.graphics.surfaceflinger.flags.reject_dupe_layerstacks
Change-Id: I2e59daa184d888a1804d8250ba6ce5037542a7d1
parent cb47c6c9
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