linuxkpi: Support non-NULL zero-size pointers
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Authored by dumbbell on Mar 13 2023, 2:58 PM.

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manu
emaste

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rG1b4e08b4832d: linuxkpi: Support non-NULL zero-size pointers

Summary

DRM drivers set some pointers to ZERO_SIZE_PTR directly (without allocating anything), to treat pointers which were "initialized" (set to ZERO_SIZE_PTR) with no memory allocation like really allocated pointers. NULL isn't used because it represents a third state.

This is part of the update of the DRM drivers to Linux 5.17.