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From: Conor Dooley <conor@kernel.org>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Samuel Holland <samuel.holland@sifive.com>,
	Heinrich Schuchardt <heinrich.schuchardt@canonical.com>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>,
	Evan Green <evan@rivosinc.com>,
	Andrew Jones <ajones@ventanamicro.com>,
	Guodong Xu <guodong@riscstar.com>
Cc: conor@kernel.org,
	Conor Dooley <conor.dooley@microchip.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	devicetree@vger.kernel.org,
	linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: (subset) [PATCH v2 0/3] riscv: cpufeature: Add Supm extension id and validation
Date: Fri,  6 Mar 2026 18:05:44 +0000
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From: Conor Dooley <conor.dooley@microchip.com>

On Sun, 25 Jan 2026 09:36:05 +0800, Guodong Xu wrote:
> Supm as an extension indicates pointer-masking support for user mode
> (U-mode). It relies on Ssnpm or Smnpm for the underlying hardware
> implementation.
> 
> Major change in v2 is added dependency check for Supm in bindings.
> 
> As a ratified feature, define a dedicated RISCV_ISA_EXT_ id for Supm.
> However, since Supm is targeting U-mode, it should not be added into
> devicetrees that describe hardware running privileged system softwares.
> 
> [...]

Applied to riscv-dt-for-next, thanks!

[1/3] dt-bindings: riscv: Add Supm extension description
      https://git.kernel.org/conor/c/5932c871e067

Thanks,
Conor.