On Sat, Feb 25, 2023 at 1:01 AM Linus Walleij <linus.walleij@xxxxxxxxxx> wrote: > I tested this on the Ux500 and sadly this happens > already in probe(): (...) > [ 2.828815] stm32-hash a03c2000.hash: Algo 0 : 0 failed > [ 2.834144] stm32-hash: probe of a03c2000.hash failed with error -22 It turns out that this is because this: - /* Export Context */ - u32 *hw_context; + /* hash state */ + u32 hw_context[3 + HASH_CSR_REGISTER_NUMBER]; Makes struct stm32_hash_request_ctx 580 bytes and that fails sanity check in ahash.c because HASH_MAX_STATESIZE is 512. I don't know the story behind why HASH_MAX_STATESIZE is 512, the stm32 hash state contains a buffer of 256 bytes so I guess either that buffer is a bit big or HASH_MAX_STATESIZE is a bit small? I'm happy to try to change either to make this fit. Yours, Linus Walleij
