Re: [PATCH] riscv: Remove 32b kernel mapping from page table dump

[Anup Patel]

On Sun, Apr 18, 2021 at 4:59 PM Alexandre Ghiti <alex@xxxxxxxx> wrote:
>
> The 32b kernel mapping lies in the linear mapping, there is no point in
> printing its address in page table dump, so remove this leftover that
> comes from moving the kernel mapping outside the linear mapping for 64b
> kernel.
>
> Fixes: e9efb21fe352 ("riscv: Prepare ptdump for vm layout dynamic addresses")
> Signed-off-by: Alexandre Ghiti <alex@xxxxxxxx>

Looks good to me.

Reviewed-by: Anup Patel <anup@xxxxxxxxxxxxxx>

Regards,
Anup

> ---
>  arch/riscv/mm/ptdump.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c
> index 0aba4421115c..a4ed4bdbbfde 100644
> --- a/arch/riscv/mm/ptdump.c
> +++ b/arch/riscv/mm/ptdump.c
> @@ -76,8 +76,8 @@ enum address_markers_idx {
>         PAGE_OFFSET_NR,
>  #ifdef CONFIG_64BIT
>         MODULES_MAPPING_NR,
> -#endif
>         KERNEL_MAPPING_NR,
> +#endif
>         END_OF_SPACE_NR
>  };
>
> @@ -99,8 +99,8 @@ static struct addr_marker address_markers[] = {
>         {0, "Linear mapping"},
>  #ifdef CONFIG_64BIT
>         {0, "Modules mapping"},
> -#endif
>         {0, "Kernel mapping (kernel, BPF)"},
> +#endif
>         {-1, NULL},
>  };
>
> @@ -379,8 +379,8 @@ static int ptdump_init(void)
>         address_markers[PAGE_OFFSET_NR].start_address = PAGE_OFFSET;
>  #ifdef CONFIG_64BIT
>         address_markers[MODULES_MAPPING_NR].start_address = MODULES_VADDR;
> -#endif
>         address_markers[KERNEL_MAPPING_NR].start_address = kernel_virt_addr;
> +#endif
>
>         kernel_ptd_info.base_addr = KERN_VIRT_START;
>
> --
> 2.20.1
>