[PATCH v11 RESEND 4/9] arm64: Kconfig: Detect toolchain support for LSUI

[Yeoreum Yun]

> On Mon, Jan 19, 2026 at 03:50:43PM +0000, Will Deacon wrote:
> > On Sun, Dec 14, 2025 at 11:22:43AM +0000, Yeoreum Yun wrote:
>
> > > +config AS_HAS_LSUI
> > > +	def_bool $(as-instr,.arch_extension lsui)
> > > +	help
> > > +	  Supported by LLVM 20+ and binutils 2.45+.
>
> > This is an internal Kconfig variable so please drop the help text.
>
> It would be useful to keep the information about supported compilers as
> a comment though (as is done for some of the other toolchain feature
> tests).

With some comments from other thread,
What about this?

+menu "ARMv9.6 architectural features"
+
+config ARM64_LSUI
+       bool "Support Unprivileged Load Store Instructions (LSUI)"
+       default y
+       depends on AS_HAS_LSUI && !CPU_BIG_ENDIAN
+       help
+         The Unprivileged Load Store Instructions (LSUI) provides
+         variants load/store instructions that access user-space memory
+         from the kernel without clearing PSTATE.PAN bit.
+
+         This feature is supported by LLVM 20+ and binutils 2.45+.
+
+endmenu # "ARMv9.6 architectural feature"
+
 config AS_HAS_LSUI
        def_bool $(as-instr,.arch_extension lsui)
-       help
-         Supported by LLVM 20+ and binutils 2.45+.


--
Sincerely,
Yeoreum Yun