Re: [PATCH v8 1/5] x86/sgx: Introduce a counter to count the sgx_(vepc_)open()

[Dave Hansen]

On 7/15/25 05:40, Elena Reshetova wrote:
> +int sgx_inc_usage_count(void)
> +{
> +     sgx_usage_count++;
> +     return 0;
> +}
> +
> +void sgx_dec_usage_count(void)
> +{
> +     sgx_usage_count--;
> +}

Gah.

I know this gets fixed up later in the series with the mutex, but this
code is broken and racy until that point.

I'd rather this do _nothing_:

        int sgx_inc_usage_count(void)
        {
                return 0;
        }

than a foo++ which just plain doesn't work.