Vadim Fedorenko 65d6d61d25 bpf: crypto: make state and IV dynptr nullable ...

Some ciphers do not require state and IV buffer, but with current
implementation 0-sized dynptr is always needed. With adjustment to
verifier we can provide NULL instead of 0-sized dynptr. Make crypto
kfuncs ready for this.

Reviewed-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Link: https://lore.kernel.org/r/20240613211817.1551967-3-vadfed@meta.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

2024-06-13 16:33:04 -07:00

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