Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
In-Reply-To: <20230709171036.1906-1-jszhang@kernel.org>
References: <20230709171036.1906-1-jszhang@kernel.org>
Subject: Re: [PATCH] riscv: mm: fix truncates issue on RV32
Message-Id: <168917713755.21773.10817207313937867675.b4-ty@rivosinc.com>
Date:   Wed, 12 Jul 2023 08:52:17 -0700
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Cc:     linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
        Randy Dunlap <rdunlap@infradead.org>,
        kernel test robot <lkp@intel.com>
From:   Palmer Dabbelt <palmer@rivosinc.com>
To:     Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Jisheng Zhang <jszhang@kernel.org>
Precedence: bulk


On Mon, 10 Jul 2023 01:10:36 +0800, Jisheng Zhang wrote:
> lkp reports below sparse warning when building for RV32:
> arch/riscv/mm/init.c:1204:48: sparse: warning: cast truncates bits from
> constant value (100000000 becomes 0)
> 
> IMO, the reason we didn't see this truncates bug in real world is "0"
> means MEMBLOCK_ALLOC_ACCESSIBLE in memblock and there's no RV32 HW
> with more than 4GB memory.
> 
> [...]

Applied, thanks!

[1/1] riscv: mm: fix truncates issue on RV32
      https://git.kernel.org/palmer/c/b690e266dae2

Best regards,
-- 
Palmer Dabbelt <palmer@rivosinc.com>