From patchwork Tue Mar 2 17:25:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 392316 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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable 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 CA249C28E85 for ; Tue, 2 Mar 2021 20:31:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 866DD601FA for ; Tue, 2 Mar 2021 20:31:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1837032AbhCBUaP (ORCPT ); Tue, 2 Mar 2021 15:30:15 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:15489 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1580133AbhCBRa2 (ORCPT ); Tue, 2 Mar 2021 12:30:28 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4DqkXw1XPpz9v1C4; Tue, 2 Mar 2021 18:25:20 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id LhQkvn-K5PGS; Tue, 2 Mar 2021 18:25:20 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4DqkXw0jTRz9v1Bx; Tue, 2 Mar 2021 18:25:20 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id D8B9B8B7B5; Tue, 2 Mar 2021 18:25:21 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id huFmz8x1Abk4; Tue, 2 Mar 2021 18:25:21 +0100 (CET) Received: from po16121vm.idsi0.si.c-s.fr (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 7FD0C8B75F; Tue, 2 Mar 2021 18:25:21 +0100 (CET) Received: by localhost.localdomain (Postfix, from userid 0) id 5934E674A2; Tue, 2 Mar 2021 17:25:21 +0000 (UTC) Message-Id: <54fd814a0c7aad690fa3aceaab5f35cb930c681a.1614705851.git.christophe.leroy@csgroup.eu> In-Reply-To: References: From: Christophe Leroy Subject: [PATCH v2 5/7] powerpc: add capability to prepend default command line To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , danielwa@cisco.com, robh@kernel.org, daniel@gimpelevich.san-francisco.ca.us Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org, devicetree@vger.kernel.org Date: Tue, 2 Mar 2021 17:25:21 +0000 (UTC) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch activates the capability to prepend default arguments to the command line. Signed-off-by: Christophe Leroy --- arch/powerpc/Kconfig | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 386ae12d8523..0ab406f14513 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -912,6 +912,12 @@ config CMDLINE_EXTEND The command-line arguments provided by the boot loader will be appended to the default kernel command string. +config CMDLINE_PREPEND + bool "Prepend bootloader kernel arguments" + help + The default kernel command string will be prepend to the + command-line arguments provided during boot. + config CMDLINE_FORCE bool "Always use the default kernel command string" help