Re: [PATCH 08/12] parisc: use pgtable-nopXd instead of 4level-fixup

[Mike Rapoport]

On Wed, Oct 23, 2019 at 12:20:29PM +0200, Rolf Eike Beer wrote:
> >diff --git a/arch/parisc/include/asm/page.h
> >b/arch/parisc/include/asm/page.h
> >index 93caf17..1d339ee 100644
> >--- a/arch/parisc/include/asm/page.h
> >+++ b/arch/parisc/include/asm/page.h
> >@@ -42,48 +42,54 @@ typedef struct { unsigned long pte; } pte_t; /*
> >either 32 or 64bit */
> >
> > /* NOTE: even on 64 bits, these entries are __u32 because we allocate
> >  * the pmd and pgd in ZONE_DMA (i.e. under 4GB) */
> >-typedef struct { __u32 pmd; } pmd_t;
> > typedef struct { __u32 pgd; } pgd_t;
> > typedef struct { unsigned long pgprot; } pgprot_t;
> >
> >-#define pte_val(x)	((x).pte)
> >-/* These do not work lvalues, so make sure we don't use them as such. */
> >+#if CONFIG_PGTABLE_LEVELS == 3
> >+typedef struct { __u32 pmd; } pmd_t;
> >+#define __pmd(x)	((pmd_t) { (x) } )
> >+/* pXd_val() do not work lvalues, so make sure we don't use them as such.
> >*/
> 
> For me it sounds like there is something missing, maybe an "as" before
> lvalues?

Right, "as lvalues" makes sense.

> And it was "These", so plural, and now it is singular, so do -> does?

There's also pgd_val() a few lines below, it's just not visible in the
patch.
 
> Eike

-- 
Sincerely yours,
Mike.