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df373d39c6
This driver is harmful:
- It is much slower than the CPU [1] [2].
- It Has a history of bugs [2] [3].
- It does not have exclusive access to the hardware [4], causing races
with the secure world.
- It register its implementations with too low a cra_priority for them
to be actually used [5].
Therefore, disable it to ensure that nobody builds it into kernels they
intend to ship.
In the future, the driver will be used for processing restricted media
content. However, the kernel does not currently support this. Since
the driver will have future uses, allow building it if COMPILE_TEST is
enabled.
[1]: https://lore.kernel.org/r/20250704070322.20692-1-ebiggers@kernel.org/
[2]: https://lore.kernel.org/r/20250615031807.GA81869@sol/
[3]: https://lore.kernel.org/r/20260706-qce-fix-self-tests-v5-0-86f461ff1829@oss.qualcomm.com/
[4]: https://lore.kernel.org/r/20260629-qcom-qce-cmd-descr-v20-0-56f67da84c05@oss.qualcomm.com/
[5]: https://lore.kernel.org/r/20260524204537.GB110177@quark/
Fixes:
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|---|---|---|
| .. | ||
| alpha | ||
| arc | ||
| arm | ||
| arm64 | ||
| csky | ||
| hexagon | ||
| loongarch | ||
| m68k | ||
| microblaze | ||
| mips | ||
| nios2 | ||
| openrisc | ||
| parisc | ||
| powerpc | ||
| riscv | ||
| s390 | ||
| sh | ||
| sparc | ||
| um | ||
| x86 | ||
| xtensa | ||
| .gitignore | ||
| Kconfig | ||