[PATCH v3] crypto: riscv/poly1305 - import OpenSSL/CRYPTOGAMS implementation

[Zhihang Shao]

>> +void poly1305_blocks_arch(struct poly1305_block_state *state, const u8 *src,
>> +  unsigned int len, u32 padbit)
>> +{
>> + len = round_down(len, POLY1305_BLOCK_SIZE);
>> + poly1305_blocks(state, src, len, 1);
>> +}
>> +EXPORT_SYMBOL_GPL(poly1305_blocks_arch);
> 
> This is ignoring the padbit and forcing it to 1, so this will compute the wrong
> Poly1305 value for messages with length not a multiple of 16 bytes.

So Does this mean here the argument of poly1305_blocks should be fixed as poly1305_blocks(state, src, len, padbit)?
But since the padbit is set to 1 in poly1305_blocks_arch according to the implementation in lib/crypto/poly1305.c, 
it seems to be no difference here.

Looking forward to your reply.