From patchwork Mon Jan 31 12:34:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Andrzej Siewior X-Patchwork-Id: 538634 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 95728C43217 for ; Mon, 31 Jan 2022 12:34:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377787AbiAaMek (ORCPT ); Mon, 31 Jan 2022 07:34:40 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:59484 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1377681AbiAaMei (ORCPT ); Mon, 31 Jan 2022 07:34:38 -0500 From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643632477; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xJWvr65dKavzLpT9wk8poZEoprQ5XoEoPP+pD1dTjoU=; b=Z/KGWakY3YQlkXWWU17c/U6IyXfQ2ddGu2eAM1wSlkX5J3cDhZ/2sw01mwLlFcckDsouWb 6DQIC8M/NmorkRzCyc4PAaOaZAUR9X3K7NumnAmRwAAbUUktaHsL8Ya2glWuNNY3Ner0R+ B624oJtvIdvwqA0J4mJNppn96yQ04dJ7PtlWVG1SLpP68xYftg6aTWuZaFVXM62pEfN/wo +ivNf1zd/2FL3+dtp1JTFrpaBsBtgkC5eww1zsh1fzhS4Uz7bJNeJAqDQDXfdoFkqEKaFM +NQflqvo3TspLnpeEAgXit6O7IiqKmpVYpn4KdJDfHic9T8O2PEGqOYKf32EBA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643632477; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xJWvr65dKavzLpT9wk8poZEoprQ5XoEoPP+pD1dTjoU=; b=1FiRpdEpOIKmEaDN1Ok6OZsrGcwa2CFIdZD9jXw4HkbjamLiJUBykx5vbsIIS/XPmAktwm /+0hNxq/DdZqnyDg== To: greybus-dev@lists.linaro.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, linux-usb@vger.kernel.org, netdev@vger.kernel.org Cc: "David S. Miller" , Alex Elder , Arnd Bergmann , Greg Kroah-Hartman , Hans de Goede , Jakub Kicinski , Johan Hovold , Lee Jones , Rui Miguel Silva , Thomas Gleixner , UNGLinuxDriver@microchip.com, Wolfram Sang , Woojung Huh , Sebastian Andrzej Siewior Subject: [PATCH v2 4/7] mfd: hi6421-spmi-pmic: Use generic_handle_irq_safe(). Date: Mon, 31 Jan 2022 13:34:01 +0100 Message-Id: <20220131123404.175438-5-bigeasy@linutronix.de> In-Reply-To: <20220131123404.175438-1-bigeasy@linutronix.de> References: <20220131123404.175438-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org generic_handle_irq() is invoked from a regular interrupt service routine. This handler will become a forced-threaded handler on PREEMPT_RT and will be invoked with enabled interrupts. The generic_handle_irq() must be invoked with disabled interrupts in order to avoid deadlocks. Instead of manually disabling interrupts before invoking use generic_handle_irq_safe() which can be invoked with enabled and disabled interrupts. Signed-off-by: Sebastian Andrzej Siewior --- drivers/misc/hi6421v600-irq.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/misc/hi6421v600-irq.c b/drivers/misc/hi6421v600-irq.c index 1c763796cf1fa..caa3de37698b0 100644 --- a/drivers/misc/hi6421v600-irq.c +++ b/drivers/misc/hi6421v600-irq.c @@ -117,8 +117,8 @@ static irqreturn_t hi6421v600_irq_handler(int irq, void *__priv) * If both powerkey down and up IRQs are received, * handle them at the right order */ - generic_handle_irq(priv->irqs[POWERKEY_DOWN]); - generic_handle_irq(priv->irqs[POWERKEY_UP]); + generic_handle_irq_safe(priv->irqs[POWERKEY_DOWN]); + generic_handle_irq_safe(priv->irqs[POWERKEY_UP]); pending &= ~HISI_IRQ_POWERKEY_UP_DOWN; } @@ -126,7 +126,7 @@ static irqreturn_t hi6421v600_irq_handler(int irq, void *__priv) continue; for_each_set_bit(offset, &pending, BITS_PER_BYTE) { - generic_handle_irq(priv->irqs[offset + i * BITS_PER_BYTE]); + generic_handle_irq_safe(priv->irqs[offset + i * BITS_PER_BYTE]); } }