[RFC v2 11/13] keys/mktme: Program memory encryption keys on a system wide basis

[Kirill A. Shutemov]

On Tue, Dec 04, 2018 at 09:21:45AM +0000, Peter Zijlstra wrote:
> On Mon, Dec 03, 2018 at 11:39:58PM -0800, Alison Schofield wrote:
> 
> > +struct mktme_hw_program_info {
> > +	struct mktme_key_program *key_program;
> > +	unsigned long status;
> > +};
> > +
> > +/* Program a KeyID on a single package. */
> > +static void mktme_program_package(void *hw_program_info)
> > +{
> > +	struct mktme_hw_program_info *info = hw_program_info;
> > +	int ret;
> > +
> > +	ret = mktme_key_program(info->key_program);
> > +	if (ret != MKTME_PROG_SUCCESS)
> > +		WRITE_ONCE(info->status, ret);
> 
> What's the purpose of that WRITE_ONCE()?

[I suggested the code to Alison.]

Yes, you're right. Simple assignment will do.

-- 
 Kirill A. Shutemov