From patchwork Mon May 17 14:01:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 440650 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1225CC43470 for ; Mon, 17 May 2021 15:31:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EC34A61004 for ; Mon, 17 May 2021 15:31:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244682AbhEQPcy (ORCPT ); Mon, 17 May 2021 11:32:54 -0400 Received: from mail.kernel.org ([198.145.29.99]:55332 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245710AbhEQPak (ORCPT ); Mon, 17 May 2021 11:30:40 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0BDEA61CC8; Mon, 17 May 2021 14:37:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621262280; bh=yb2t9n9d73ncxUe8UzTCxpoOQfoZZe3tejDhEVDgH2w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XT1JdDgo9VFrP37EYtcOyXlfW1MKLEJl9AyHcNjqO6VS3+hp1IMwGz8eXuaao2TN1 DHL7BekvmCLhtZ9ZQoKPBsl7Lm34QJZ9dA3u+u1Z2TIhbG/f7HeiFO/dZqKxmaAoSx jHCR2PRJJmo4P6mBJUJmKk8mpos1FD8mcuH7eSoA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Anup Patel , Palmer Dabbelt , Sasha Levin Subject: [PATCH 5.10 152/289] RISC-V: Fix error code returned by riscv_hartid_to_cpuid() Date: Mon, 17 May 2021 16:01:17 +0200 Message-Id: <20210517140310.263298172@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210517140305.140529752@linuxfoundation.org> References: <20210517140305.140529752@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Anup Patel [ Upstream commit 533b4f3a789d49574e7ae0f6ececed153f651f97 ] We should return a negative error code upon failure in riscv_hartid_to_cpuid() instead of NR_CPUS. This is also aligned with all uses of riscv_hartid_to_cpuid() which expect negative error code upon failure. Fixes: 6825c7a80f18 ("RISC-V: Add logical CPU indexing for RISC-V") Fixes: f99fb607fb2b ("RISC-V: Use Linux logical CPU number instead of hartid") Signed-off-by: Anup Patel Signed-off-by: Palmer Dabbelt Signed-off-by: Sasha Levin --- arch/riscv/kernel/smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c index ea028d9e0d24..d44567490d91 100644 --- a/arch/riscv/kernel/smp.c +++ b/arch/riscv/kernel/smp.c @@ -54,7 +54,7 @@ int riscv_hartid_to_cpuid(int hartid) return i; pr_err("Couldn't find cpu id for hartid [%d]\n", hartid); - return i; + return -ENOENT; } void riscv_cpuid_to_hartid_mask(const struct cpumask *in, struct cpumask *out)