Re: [PATCH 20/30] x86, mm: remove hard-coded ASID limit checks
From: Peter Zijlstra
Date: Fri Nov 10 2017 - 07:20:50 EST
On Wed, Nov 08, 2017 at 11:47:24AM -0800, Dave Hansen wrote:
> +#define CR3_HW_ASID_BITS 12
> +#define NR_AVAIL_ASIDS ((1<<CR3_AVAIL_ASID_BITS) - 1)
That evaluates to 4095
> - VM_WARN_ON_ONCE(asid > 4094);
> + VM_WARN_ON_ONCE(asid > NR_AVAIL_ASIDS);
Not the same number