From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D567C63707 for ; Fri, 6 Jan 2023 17:51:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235757AbjAFRvK (ORCPT ); Fri, 6 Jan 2023 12:51:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42348 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234858AbjAFRvE (ORCPT ); Fri, 6 Jan 2023 12:51:04 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B280A1A1 for ; Fri, 6 Jan 2023 09:50:47 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4565961EFE for ; Fri, 6 Jan 2023 17:50:47 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5691EC433D2; Fri, 6 Jan 2023 17:50:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673027446; bh=tET+i312I7vgtoiLpfEfjAE5lEdjkhoXZCa+piE6+q0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cMk6mtjG41oP3ZQNRWwavT9jasuiNT89XiFMsStm7Vragms8lvTGUzEcz04bOFNLX tp6ILOR/43vheohfSSAHzoF02UEH9JW9Ee1FKwcbemDaRWVaT4vu6eLoOrDoFx0LJQ Nb0cMZ8p5lxCVlSFwZvUBDiKkbXb9OQz04MVh3PTXWRTmahEr+cLPNg8iJJu0e9sGH bE/dBr5gkCYY2cQGgJqVLlY28Pl2m0TPDErI5QTawO0vOAIXT0jBfk9QOi9NVAFeA2 nJibKQgtTPK5iG9CwGGFYxF71fLvEJLGbrFOT95tEhFAL7h2qs4n/H1TGOSh9zFeVd /tbCuiqCPu1Ow== From: Will Deacon To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Marc Zyngier Cc: catalin.marinas@arm.com, kernel-team@android.com, Will Deacon , Arnd Bergmann , Hector Martin , Lorenzo Pieralisi , Dmitry Baryshkov , Ulf Hansson , Mark Rutland , Mark Brown Subject: Re: [PATCH] firmware/psci: Don't register with debugfs if PSCI isn't available Date: Fri, 6 Jan 2023 17:50:36 +0000 Message-Id: <167302518922.215165.14813774923377153099.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20230105090834.630238-1-maz@kernel.org> References: <20230105090834.630238-1-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 5 Jan 2023 09:08:34 +0000, Marc Zyngier wrote: > Contrary to popular belief, PSCI is not a universal property of an > ARM/arm64 system. There is a garden variety of systems out there > that don't (or even cannot) implement it. > > I'm the first one deplore such a situation, but hey... > > On such systems, a "cat /sys/kernel/debug/psci" results in > fireworks, as no invocation callback is registered. > > [...] Applied to arm64 (for-next/fixes), thanks! [1/1] firmware/psci: Don't register with debugfs if PSCI isn't available https://git.kernel.org/arm64/c/cef139299fd8 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev