Re: [PATCH 1/5] powerpc/ptdump: fix addresses display on PPC32

[Christophe Leroy]

Michael,

Le 14/08/2019 Ã 14:36, Christophe Leroy a ÃcritÂ:
> Commit 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")
> wrongly changed KERN_VIRT_START from 0 to PAGE_OFFSET, leading to a
> shift in the displayed addresses.
>
> Lets revert that change to resync walk_pagetables()'s addr val and
> pgd_t pointer for PPC32.
>
> Fixes: 453d87f6a8ae ("powerpc/mm: Warn if W+X pages found on boot")

Either this patch or patch 2 of the series has to go into fixes.

If you prefer next patch for fixes, then this one can be squashed into 
patch 3 which drops the PPC32 hacked definition of KERN_VIRT_START

Christophe

> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
> ---
>   arch/powerpc/mm/ptdump/ptdump.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c
> index 6a88a9f585d4..3ad64fc11419 100644
> --- a/arch/powerpc/mm/ptdump/ptdump.c
> +++ b/arch/powerpc/mm/ptdump/ptdump.c
> @@ -27,7 +27,7 @@
>   #include "ptdump.h"
>   
>   #ifdef CONFIG_PPC32
> -#define KERN_VIRT_START	PAGE_OFFSET
> +#define KERN_VIRT_START	0
>   #endif
>   
>   /*