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crypto: x86/aes-ni - remove special handling of AES in PCBC mode
For historical reasons, the AES-NI based implementation of the PCBC chaining mode uses a special FPU chaining mode wrapper template to amortize the FPU start/stop overhead over multiple blocks. When this FPU wrapper was introduced, it supported widely used chaining modes such as XTS and CTR (as well as LRW), but currently, PCBC is the only remaining user. Since there are no known users of pcbc(aes) in the kernel, let's remove this special driver, and rely on the generic pcbc driver to encapsulate the AES-NI core cipher. Signed-off-by: Ard Biesheuvel <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
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