Re: [PATCH v23 12/24] x86/sgx: Linux Enclave Driver

[Jarkko Sakkinen]

On Tue, Nov 05, 2019 at 01:11:22PM +0200, Jarkko Sakkinen wrote:
> I'll add @count to address this. This output field will contain the
> number of bytes actually written instead of overwriting input
> parameters, which is a bad practice in anyway.
> 
> We don't need to actually cap to anything but API must be able to
> support such scenario. Caller must be prepared to deal with the
> situation where the return value is zero but @count < @length.

I summarized here my reasoning on @count:

https://lore.kernel.org/linux-sgx/20191108081331.GB3370@xxxxxxxxxxxxxxx/

/Jarkko