On 03/25/2021 06:17 PM, Thomas Bogendoerfer wrote:

On Mon, Mar 22, 2021 at 03:12:59PM +0800, Tiezhu Yang wrote:

quoted

On 03/22/2021 12:46 PM, Maciej W. Rozycki wrote:

quoted

On Thu, 18 Mar 2021, Tiezhu Yang wrote:

quoted

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 160b3a8..4b94ec7 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig

@@ -6,6 +6,7 @@ config MIPS
   	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
   	select ARCH_HAS_FORTIFY_SOURCE
   	select ARCH_HAS_KCOV
+	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE

   Hmm, documentation on ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE seems rather
scarce, but based on my guess shouldn't this be "if !EVA"?

    Maciej

I do not quite know what the effect if MIPS EVA (Enhanced Virtual
Addressing)
is set, I saw that ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE should be
restricted
to archs with non-overlapping address ranges.

I wonder whether MIPS EVA will generate overlapping address ranges?

they can overlap in EVA mode.

quoted

If yes, it is better to make ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE depend
on !EVA on MIPS.

Could please add the change ?

OK, thank you, I will do it soon.

Thomas.