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Re: [Qemu-devel] [PATCH v3 10/16] target-arm: Break out exception maskin
From: |
Edgar E. Iglesias |
Subject: |
Re: [Qemu-devel] [PATCH v3 10/16] target-arm: Break out exception masking to a separate func |
Date: |
Mon, 4 Aug 2014 11:57:20 +1000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Aug 01, 2014 at 02:51:44PM +0100, Peter Maydell wrote:
> On 17 June 2014 09:45, Edgar E. Iglesias <address@hidden> wrote:
> >
> > +static inline bool arm_excp_unmasked(CPUState *cs, unsigned int excp_idx)
> > +{
> > + CPUARMState *env = cs->env_ptr;
> > +
> > + switch (excp_idx) {
> > + case EXCP_FIQ:
> > + return !(env->daif & PSTATE_F);
> > + case EXCP_IRQ:
> > + return ((IS_M(env) && env->regs[15] < 0xfffffff0)
> > + || !(env->daif & PSTATE_I));
> > + default:
> > + g_assert_not_reached();
> > + break;
>
> You don't need a break, we've just asserted that this isn't
> reachable. (Conversely if it was possible to get past the
> assert we'd be falling out of the function without returning
> a value, so break is wrong either way. But "just don't
> put in the break" is what we do elsewhere in target-arm.)
I've removed the break, thanks.
>
> > + }
> > +}
>
> thanks
> -- PMM