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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A647DC624D4 for ; Tue, 1 Sep 2026 13:11:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=F2ThhmNqFT6d/2eLiPpP/gK+PRLYH4r04puKywqLfY0=; b=fbNE16TIc9TGZE5L5Lvq5jqJWW NI6gCTm4SOQrNqd76FWUUCZ+CVNKEsm/LL/HVjvDOIatBeIW8YGbMfS9r+mAw9rdQWw+/niCFPbc6 9My5Y0zAQKG7OUQY2dKRlci8bbzxlz7cXWdODkzL5c8VpuAuWVlFioVppcnBVyF0VY+4yFQhE+Jp3 Om/VrfyWfy1lTZrjvVVnZelI1BCTsrclxaesOFCHMC7Tpdkw90yBzPQzS7Zd7nLJT8IJpGXOGRvRa Nhj8Z3YDZd3ZI8bkfcyRE1IJADE7iD5B8GLuNgyqjf4ZJJci/OSir6kmzStcQL4oDIrMlFBczYss/ HerwwnzQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1OGl-0000000CA5u-0zZa; Tue, 01 Sep 2026 13:11:19 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x1OGk-0000000CA5n-0w1q for linux-arm-kernel@lists.infradead.org; Tue, 01 Sep 2026 13:11:18 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id F419E41843; Tue, 1 Sep 2026 13:11:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BCC0B1F000E9; Tue, 1 Sep 2026 13:11:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788268277; bh=F2ThhmNqFT6d/2eLiPpP/gK+PRLYH4r04puKywqLfY0=; h=From:To:Cc:Subject:Date; b=oSvKaR3xoB9LvPIV35iJwT9IhRKeKzauTXOfOloiOBgfmX+kHT/bOFdcrEiPgnE8S 4+M9AlG1IOrhmseabRqG59clmk3FcTabaHyVTz3P+TUadWBl0IK9dlX5okAmYSbowo C9fta4mHrYXudGpGuwmzimw/HsFtxK4OiuIlV7Gbz5eKMz56M9OgAaw7VeTRxc4ayR y+lWMQGcXbCh7ajSaDC1t3kmXgXEzfIufc5mCy5HCS5cP1m0O4Ih60ILJbtekqVbpJ 22GWR+rVX0GK9IkI+ko44S/lU1sURkPigZuAhEVyEtC8MUqCwE8//KP63eXb4drRg+ Fky1FynFTl6og== From: Sudeep Holla To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Sudeep Holla , Nat Gurumoorthy , Carol L Soto , Maxi Saparov Subject: [PATCH] firmware: arm_ffa: Tear down driver during shutdown Date: Tue, 1 Sep 2026 14:11:12 +0100 Message-ID: <20260901131112.3437516-1-sudeep.holla@kernel.org> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The platform core invokes a driver's shutdown callback, rather than its remove callback, while preparing devices for a normal kexec. Without a shutdown callback, the FF-A driver leaves notifications, partition devices, and the RX/TX mapping active before the replacement kernel is booted. Use ffa_remove() for shutdown so the existing cleanup runs before a normal kexec and other orderly system shutdowns. Reported-by: Nat Gurumoorthy Closes: https://lore.kernel.org/all/20260729162731.1383875-1-natg@google.com/ Reported-by: Carol L Soto Closes: https://lore.kernel.org/all/20260818224404.3694580-1-csoto@nvidia.com Reported-by: Maxi Saparov Closes: https://lore.kernel.org/all/20260826222337.73480-1-maxi.saparov@gmail.com Signed-off-by: Sudeep Holla --- drivers/firmware/arm_ffa/driver.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index 0121bd0a7e01..7f42ffe79f22 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -2271,6 +2271,7 @@ static void ffa_remove(struct platform_device *pdev) static struct platform_driver ffa_driver = { .probe = ffa_probe, .remove = ffa_remove, + .shutdown = ffa_remove, .driver = { .name = FFA_PLATFORM_NAME, }, -- 2.43.0