From nobody Fri Dec 19 17:17:41 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 33A1B1D53B; Fri, 22 Dec 2023 11:57:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="k9NA+rgg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 453B3C433C7; Fri, 22 Dec 2023 11:57:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1703246249; bh=/l6avMA7EU8OdaEPKAk6fYnGo8Aj3OZ74KZJkfMi7ro=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=k9NA+rgguh457yYzw8xXp5ZSYH8I1HoC3z7XcoXIbtLpB/D+HRAQ9UcNBjMluElnH 4RUzNAaKXXd53Sy2egoIyBSCVfN0GNLMKj7M3XGHOUXMNdjJ4SgJHjW2/Da9nSYvpj zNiQsEn2KI9bPrHx7VRY1NHyGJPOD5GZlnZDtD7oZZgXwJEma8EIbyEBlFYy+8fhpD lro6yLLsWb0bTPAf0kmFRnRgbyjo3069vahuhziEzw7kS4uw3mP4UL5mRq/gU06ncr pZ1tbjgYFuBjUUVxMg1xYLXYHriQeO06xrHkSHiRN/vO8PT1k96fZgxqxNvHtspWxk 3SKGxdrbqPVCA== From: guoren@kernel.org To: linux-kernel@vger.kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com, alexghiti@rivosinc.com, charlie@rivosinc.com, xiao.w.wang@intel.com, guoren@kernel.org, david@redhat.com, panqinglin2020@iscas.ac.cn, rick.p.edgecombe@intel.com, willy@infradead.org, bjorn@rivosinc.com, conor.dooley@microchip.com, cleger@rivosinc.com, leobras@redhat.com Cc: linux-riscv@lists.infradead.org, Guo Ren , stable@vger.kernel.org Subject: [PATCH V3 2/4] riscv: mm: Fixup compat arch_get_mmap_end Date: Fri, 22 Dec 2023 06:57:01 -0500 Message-Id: <20231222115703.2404036-3-guoren@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20231222115703.2404036-1-guoren@kernel.org> References: <20231222115703.2404036-1-guoren@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Guo Ren When the task is in COMPAT mode, the arch_get_mmap_end should be 2GB, not TASK_SIZE_64. The TASK_SIZE has contained is_compat_mode() detection, so change the definition of STACK_TOP_MAX to TASK_SIZE directly. Cc: stable@vger.kernel.org Fixes: add2cc6b6515 ("RISC-V: mm: Restrict address space for sv39,sv48,sv57= ") Signed-off-by: Guo Ren Signed-off-by: Guo Ren Reviewed-by: Charlie Jenkins Reviewed-by: Leonardo Bras --- arch/riscv/include/asm/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/processor.h b/arch/riscv/include/asm/pr= ocessor.h index f19f861cda54..e1944ff0757a 100644 --- a/arch/riscv/include/asm/processor.h +++ b/arch/riscv/include/asm/processor.h @@ -16,7 +16,7 @@ =20 #ifdef CONFIG_64BIT #define DEFAULT_MAP_WINDOW (UL(1) << (MMAP_VA_BITS - 1)) -#define STACK_TOP_MAX TASK_SIZE_64 +#define STACK_TOP_MAX TASK_SIZE =20 #define arch_get_mmap_end(addr, len, flags) \ ({ \ --=20 2.40.1