From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031338AbdD0Mda (ORCPT ); Thu, 27 Apr 2017 08:33:30 -0400 Received: from laurent.telenet-ops.be ([195.130.137.89]:36496 "EHLO laurent.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030688AbdD0MdM (ORCPT ); Thu, 27 Apr 2017 08:33:12 -0400 From: Geert Uytterhoeven To: Catalin Marinas , Will Deacon Cc: Kevin Hilman , Mark Brown , Arnd Bergmann , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH] arm64: Print DT machine model in setup_machine_fdt() Date: Thu, 27 Apr 2017 14:33:05 +0200 Message-Id: <1493296385-14140-1-git-send-email-geert+renesas@glider.be> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On arm32, the machine model specified in the device tree is printed during boot-up, courtesy of of_flat_dt_match_machine(). On arm64, of_flat_dt_match_machine() is not called, and the machine model information is not available from the kernel log. Print the machine model to make it easier to derive the machine model from an arbitrary kernel boot log. Signed-off-by: Geert Uytterhoeven --- I have scripts to save kernel boot logs, and compare logs[*] for subsequent boots on the same machine. Having a way to extract the machine model from an arbitrary kernel boot log makes this easier. Yes, I'm also a big fan of CONFIG_LOCALVERSION_AUTO and CONFIG_LOCALVERSION. [*] and clock and PM domain lists... --- arch/arm64/kernel/setup.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 28855ec1be95e113..2c822ef94f341417 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -180,6 +180,7 @@ static void __init smp_build_mpidr_hash(void) static void __init setup_machine_fdt(phys_addr_t dt_phys) { void *dt_virt = fixmap_remap_fdt(dt_phys); + const char *name; if (!dt_virt || !early_init_dt_scan(dt_virt)) { pr_crit("\n" @@ -192,7 +193,9 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys) cpu_relax(); } - dump_stack_set_arch_desc("%s (DT)", of_flat_dt_get_machine_name()); + name = of_flat_dt_get_machine_name(); + pr_info("Machine model: %s\n", name); + dump_stack_set_arch_desc("%s (DT)", name); } static void __init request_standard_resources(void) -- 2.7.4