From patchwork Thu Jan 27 11:32:57 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: 537538 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 86175C43217 for ; Thu, 27 Jan 2022 11:33:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240470AbiA0LdR (ORCPT ); Thu, 27 Jan 2022 06:33:17 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:35652 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240431AbiA0LdP (ORCPT ); Thu, 27 Jan 2022 06:33:15 -0500 From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643283194; 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=i7B20wzlMtToieI5G7tCnCKu5TFMOwHYL5yYAy+C5s0=; b=JBkP8NyESqVS1Hlzz9WJk5NOcg243nCN04rH587WjPfrsgbMd+GF/cLL/KbCXARSBGy1te hnCMEdp37RY02ygC9IbYA60OWJRD5q7sv+jMgvDu1eUKskhYRm8bG1FdR30mutei0b5Wi4 0k2g6OoFCBnXNs6C8CXFmSE+P3tuS6qhvlOyeWawldEug7w4y5qGsgUCe8Ca2Q1TguzFAY VtqdCdIlbp3ysKNH7OdDI0WzDdkrdnrKM/ELtMGf8lwFX15SItsdZSArQhIdQB4OHefEDF pAiL+soouMZwsuDsrY0hfyAN42JEj2I+goxptLQyo3+9vr4MAWvXSJMxVycebA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643283194; 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=i7B20wzlMtToieI5G7tCnCKu5TFMOwHYL5yYAy+C5s0=; b=rx72YmxkZxACjESl0FCo5J02aVqivX+TAKPihjEbioTCo9OxW5XT5J4ODTO61qpGacEqwu WPl6X2GShe2I5oAw== 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 1/7] genirq: Provide generic_handle_irq_safe(). Date: Thu, 27 Jan 2022 12:32:57 +0100 Message-Id: <20220127113303.3012207-2-bigeasy@linutronix.de> In-Reply-To: <20220127113303.3012207-1-bigeasy@linutronix.de> References: <20220127113303.3012207-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Provide generic_handle_irq_safe() which can be used can used from any context. Suggested-by: Thomas Gleixner Signed-off-by: Sebastian Andrzej Siewior --- include/linux/irqdesc.h | 1 + kernel/irq/irqdesc.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 93d270ca0c567..a77584593f7d1 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -160,6 +160,7 @@ static inline void generic_handle_irq_desc(struct irq_desc *desc) int handle_irq_desc(struct irq_desc *desc); int generic_handle_irq(unsigned int irq); +int generic_handle_irq_safe(unsigned int irq); #ifdef CONFIG_IRQ_DOMAIN /* diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index 2267e6527db3c..97223df2f460e 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -662,6 +662,27 @@ int generic_handle_irq(unsigned int irq) } EXPORT_SYMBOL_GPL(generic_handle_irq); +/** + * generic_handle_irq_safe - Invoke the handler for a particular irq + * @irq: The irq number to handle + * + * Returns: 0 on success, or -EINVAL if conversion has failed + * + * This function must be called either from an IRQ context with irq regs + * initialized or with care from any context. + */ +int generic_handle_irq_safe(unsigned int irq) +{ + unsigned long flags; + int ret; + + local_irq_save(flags); + ret = handle_irq_desc(irq_to_desc(irq)); + local_irq_restore(flags); + return ret; +} +EXPORT_SYMBOL_GPL(generic_handle_irq_safe); + #ifdef CONFIG_IRQ_DOMAIN /** * generic_handle_domain_irq - Invoke the handler for a HW irq belonging From patchwork Thu Jan 27 11:32:58 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: 537897 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 064F8C433EF for ; Thu, 27 Jan 2022 11:33:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240490AbiA0LdT (ORCPT ); Thu, 27 Jan 2022 06:33:19 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:35678 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240452AbiA0LdR (ORCPT ); Thu, 27 Jan 2022 06:33:17 -0500 From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643283195; 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=wTKjbYOxuRFcL31Sy6LSHpAHIAEA5Do9fBb8rIU2B/A=; b=JKVRy6jNueSrYIN6Xe3JiWap0sunJm+2QdxKeILRU59BwtyBatJK0iWtQj5t285PKHOt3B LZSJvksiOCnCmb1pWYwjpZ3dS05Jo9hnhL0mD/hbbXU9b6PU9/6DScg3Zo5PM6d1rQNiJu FZ1npFIuC9ZY0NjZPIk1w82UUoVxX+NHar9HUAqz1J5b5QPCof71pawdcrrGcz9DsoU1W7 +ZQi4p7ESLBqUHelgD7ClXhI45Rycs+0aSgLSysa5IvNkvyuj2ZPs7Gbbw7gfabX6tBEUE jeogssDZhf4C2eP0LgUBx8YMwwXRrY7Eqz6tQ99PfaJ4JyFfTWgFF/yeGh1kVw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643283195; 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=wTKjbYOxuRFcL31Sy6LSHpAHIAEA5Do9fBb8rIU2B/A=; b=VgquP+WkCVhYqSRx0+UG+vW3EM3AWP3WCFrN8rLQ5teC06FJyBDBteYWgyOe75HAEiL3oq GxNJ2dKiRYy6CIAg== 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 , Michael Below , Salvatore Bonaccorso Subject: [PATCH 2/7] i2c: core: Use generic_handle_irq_safe() in i2c_handle_smbus_host_notify(). Date: Thu, 27 Jan 2022 12:32:58 +0100 Message-Id: <20220127113303.3012207-3-bigeasy@linutronix.de> In-Reply-To: <20220127113303.3012207-1-bigeasy@linutronix.de> References: <20220127113303.3012207-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org The i2c-i801 driver invokes i2c_handle_smbus_host_notify() from his interrupt service routine. On PREEMPT_RT i2c-i801's handler is forced threaded with enabled interrupts which leads to a warning by handle_irq_event_percpu() assuming that irq_default_primary_handler() enabled interrupts. i2c-i801's interrupt handler can't be made non-threaded because the interrupt line is shared with other devices. Use generic_handle_irq_safe() which can invoked with disabled and enabled interrupts. Reported-by: Michael Below Link: https://bugs.debian.org/1002537 Cc: Salvatore Bonaccorso Signed-off-by: Sebastian Andrzej Siewior --- drivers/i2c/i2c-core-base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index 2c59dd748a49f..3f9e5303b6163 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -1424,7 +1424,7 @@ int i2c_handle_smbus_host_notify(struct i2c_adapter *adap, unsigned short addr) if (irq <= 0) return -ENXIO; - generic_handle_irq(irq); + generic_handle_irq_safe(irq); return 0; } From patchwork Thu Jan 27 11:32:59 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: 537537 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 56D86C43217 for ; Thu, 27 Jan 2022 11:33:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240473AbiA0LdS (ORCPT ); Thu, 27 Jan 2022 06:33:18 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:35704 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240451AbiA0LdR (ORCPT ); Thu, 27 Jan 2022 06:33:17 -0500 From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643283196; 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=MR4X9UKHf1r8ieV+0lFTTx2PgZLCHrXa68VMogEztJs=; b=SZN2cn8pYKspbLVLrE1AWhP0QZlFzMa1kSc2wRo5nufNpB7oLTIoWmyd7jC4YxCAncF0d7 L35AEyiY093moR/PaUexrYD5l/DpcAfXS0qG3THsCciiTd9Kbo07Av+aKstCIHk8a8hgCt 31ziLpMIrVzNNVUu8hXsKcGoCrY4yVAe4dR6sfFLbKVZyxc+NwdFdUlONQnCdFyLSEwLt3 lBCGEzj0OdoDKkDRkcw6GBqSIMPNhdaoHnv1fkfcdHVCeDg8JTbveS/hNMv9ZqCb4IO8Tt rKT7IpSLsgWalteG1Ps1NbZw80/PUizRPeS/UaU0cO0d5FfGuBsgrdnaCUM1Fw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643283196; 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=MR4X9UKHf1r8ieV+0lFTTx2PgZLCHrXa68VMogEztJs=; b=YhfnlrwVkGRk+5D+PDPwd73x0HRXprjUYnAYwqpeK00NGcoL8xakrV759EewxjNGr4gioo gbM+XI9TbsrBn1Aw== 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 3/7] i2c: cht-wc: Use generic_handle_irq_safe(). Date: Thu, 27 Jan 2022 12:32:59 +0100 Message-Id: <20220127113303.3012207-4-bigeasy@linutronix.de> In-Reply-To: <20220127113303.3012207-1-bigeasy@linutronix.de> References: <20220127113303.3012207-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Instead of manually disabling interrupts before invoking use generic_handle_irq() which can be invoked with enabled and disabled interrupts. Signed-off-by: Sebastian Andrzej Siewior Reviewed-by: Hans de Goede Acked-by: Wolfram Sang --- drivers/i2c/busses/i2c-cht-wc.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) diff --git a/drivers/i2c/busses/i2c-cht-wc.c b/drivers/i2c/busses/i2c-cht-wc.c index 1cf68f85b2e11..8ccf0c928bb44 100644 --- a/drivers/i2c/busses/i2c-cht-wc.c +++ b/drivers/i2c/busses/i2c-cht-wc.c @@ -99,15 +99,8 @@ static irqreturn_t cht_wc_i2c_adap_thread_handler(int id, void *data) * interrupt handler as well, so running the client irq handler from * this thread will cause things to lock up. */ - if (reg & CHT_WC_EXTCHGRIRQ_CLIENT_IRQ) { - /* - * generic_handle_irq expects local IRQs to be disabled - * as normally it is called from interrupt context. - */ - local_irq_disable(); - generic_handle_irq(adap->client_irq); - local_irq_enable(); - } + if (reg & CHT_WC_EXTCHGRIRQ_CLIENT_IRQ) + generic_handle_irq_safe(adap->client_irq); return IRQ_HANDLED; } From patchwork Thu Jan 27 11:33:00 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: 537536 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 ECE77C4332F for ; Thu, 27 Jan 2022 11:33:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240550AbiA0LdX (ORCPT ); Thu, 27 Jan 2022 06:33:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36204 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240489AbiA0LdT (ORCPT ); Thu, 27 Jan 2022 06:33:19 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B607DC06173B; Thu, 27 Jan 2022 03:33:18 -0800 (PST) From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643283196; 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=mdXbjf5exzj4qjWggjzoRlNPppEuZE9HQrfbD7rSuLU=; b=ElIzE27zcQfxOq6XUcg8wn23LhZPMwnYzeGt6etK8Qq7N/u2ZVZpmyYA6Zp+2tj3uVqpM3 RZr4PNurQ1xLvJ75g3hwzBm7A4kE14AxtASJPLJqi2+ftEEMu5Er3OWQ2+/S4yx+FVdzMJ YgrlTt7zXNCXLggwXGd21PH4iMLF9ukD/pT5F1OrE4eaZRdPeSYhXowVrLL/4PmdmtHuMp SqEkAUyXQfhtHCL6cg7xdGAcYNifHlHiYeFc+5KcEFgYVFn3f5uEHzmHYy8hVKXr4OrcOw 3EesK4sXPuIUSGa40pidB29wESqxM63JUWyp3PqcES4A1TVugkUz/7I3I9xJHg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643283196; 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=mdXbjf5exzj4qjWggjzoRlNPppEuZE9HQrfbD7rSuLU=; b=P0RhWZlFbDp7wN/7Qcwenaa+byqN1uy1RIOfwsdz0tEi+xHf/UecG7A0uC6xjqKu/xiN37 p2pmZ2mJq6UZc1Cg== 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 4/7] mfd: hi6421-spmi-pmic: Use generic_handle_irq_safe(). Date: Thu, 27 Jan 2022 12:33:00 +0100 Message-Id: <20220127113303.3012207-5-bigeasy@linutronix.de> In-Reply-To: <20220127113303.3012207-1-bigeasy@linutronix.de> References: <20220127113303.3012207-1-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 routing. 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() 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]); } } From patchwork Thu Jan 27 11:33:01 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: 537895 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 16DD5C4167D for ; Thu, 27 Jan 2022 11:33:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240568AbiA0LdX (ORCPT ); Thu, 27 Jan 2022 06:33:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240491AbiA0LdT (ORCPT ); Thu, 27 Jan 2022 06:33:19 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C00A9C061748; Thu, 27 Jan 2022 03:33:18 -0800 (PST) From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643283197; 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=dIv+CVYntwJz8CieaPTocbRGy6Ut677BgfsZfTXIw6A=; b=Nuf3tVNxG0voSB6Eq9C+Q+03rsuiHd1WOV7BrA6PWBHlOuqHjAsWiRhx8/KAY7oyXAqMMf 1hYwsdjRM3EsyLDJCMTZwzFfxxrkEBlLL17RLHV48XR5nFNu60GYtSCjZBFOzJpekRdQp4 kAOfETSk4RC7OMq0hJz4PpF4B3LXWFqirBuqRcsnnBOfVw95CqTttqNchbKU2ip9hM6A2/ 7RPQNXCjzQ87gUAzk89m7i9+P8FxDeQEWPvX43Qgw8VBbLhwne43yMItyWIcpueOLXn/d6 z5/+Gf1jHbTrMfvFgv4MaFZOr+j1NtXIhTjzRbsvMGlFWrNrbedDQ9Je3n/miA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643283197; 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=dIv+CVYntwJz8CieaPTocbRGy6Ut677BgfsZfTXIw6A=; b=8jF8mB8ZhtxYzNFXU7s06Q1sCfcl859MLbH+qbWdcr/S7Q9PuvfPUJeb9ZT3AnpOl+8O73 GKRB2ImlPEcqezAA== 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 5/7] mfd: ezx-pcap: Use generic_handle_irq_safe(). Date: Thu, 27 Jan 2022 12:33:01 +0100 Message-Id: <20220127113303.3012207-6-bigeasy@linutronix.de> In-Reply-To: <20220127113303.3012207-1-bigeasy@linutronix.de> References: <20220127113303.3012207-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Instead of manually disabling interrupts before invoking use generic_handle_irq() which can be invoked with enabled and disabled interrupts. Signed-off-by: Sebastian Andrzej Siewior --- drivers/mfd/ezx-pcap.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c index 70fa18b04ad2b..b14d3f98e1ebd 100644 --- a/drivers/mfd/ezx-pcap.c +++ b/drivers/mfd/ezx-pcap.c @@ -193,13 +193,11 @@ static void pcap_isr_work(struct work_struct *work) ezx_pcap_write(pcap, PCAP_REG_MSR, isr | msr); ezx_pcap_write(pcap, PCAP_REG_ISR, isr); - local_irq_disable(); service = isr & ~msr; for (irq = pcap->irq_base; service; service >>= 1, irq++) { if (service & 1) - generic_handle_irq(irq); + generic_handle_irq_safe(irq); } - local_irq_enable(); ezx_pcap_write(pcap, PCAP_REG_MSR, pcap->msr); } while (gpio_get_value(pdata->gpio)); } From patchwork Thu Jan 27 11:33:02 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: 537535 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 4005FC433F5 for ; Thu, 27 Jan 2022 11:33:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240594AbiA0LdY (ORCPT ); Thu, 27 Jan 2022 06:33:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240493AbiA0LdT (ORCPT ); Thu, 27 Jan 2022 06:33:19 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B6110C061747; Thu, 27 Jan 2022 03:33:18 -0800 (PST) From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643283197; 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=kVlPTMDntv41BuaIBVh4q/kKYYaaoCfGMJweU6kQ6GM=; b=1lx9niiI8RRioyHNdrmVhjrW1KCB/zoquFCf9TJgs2Uq21WSsw28rWdIvFUxceQvO6pJKF UiFUea6uHg2UdxjqRDa0qej1X8oQAfysrkyvWiYfq+TQgc2jWSXssQJm7sdYqPOj+n9oVD NajTw7lyWg33dfO29HLLLi3oSNpQMwI3rDam34WHPjIrnEuVJ/12Qys7Z0dn7PCA5iXbjx 7KmYPa05CPQLX6xcxxXjcWGUk+twV/+l24UZN68nisyKE/CFXdCyuxwFKgA8+pooy32TSs Zme9QX79lV694NSsLuR8bWGZhEXT/AUxl2H/QOvKEi7eXWOSw+7VroIIIZjndQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643283197; 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=kVlPTMDntv41BuaIBVh4q/kKYYaaoCfGMJweU6kQ6GM=; b=Ez758sB8dJOJPOxiDBVk13iEEcMxNSfJ4V1ID+WIb76mNC9VLRRakMKQoXDdneK8cXd8R5 UT5PsJEZNEqX3FBA== 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 6/7] net: usb: lan78xx: Use generic_handle_irq_safe(). Date: Thu, 27 Jan 2022 12:33:02 +0100 Message-Id: <20220127113303.3012207-7-bigeasy@linutronix.de> In-Reply-To: <20220127113303.3012207-1-bigeasy@linutronix.de> References: <20220127113303.3012207-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Instead of manually disabling interrupts before invoking use generic_handle_irq() which can be invoked with enabled and disabled interrupts. Signed-off-by: Sebastian Andrzej Siewior --- drivers/net/usb/lan78xx.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index b8e20a3f2b84e..415f16662f88e 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -1537,11 +1537,8 @@ static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb) netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata); lan78xx_defer_kevent(dev, EVENT_LINK_RESET); - if (dev->domain_data.phyirq > 0) { - local_irq_disable(); - generic_handle_irq(dev->domain_data.phyirq); - local_irq_enable(); - } + if (dev->domain_data.phyirq > 0) + generic_handle_irq_safe(dev->domain_data.phyirq); } else { netdev_warn(dev->net, "unexpected interrupt: 0x%08x\n", intdata); From patchwork Thu Jan 27 11:33:03 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: 537896 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 121CEC4321E for ; Thu, 27 Jan 2022 11:33:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240534AbiA0LdW (ORCPT ); Thu, 27 Jan 2022 06:33:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36212 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240482AbiA0LdT (ORCPT ); Thu, 27 Jan 2022 06:33:19 -0500 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2C6A2C061749; Thu, 27 Jan 2022 03:33:19 -0800 (PST) From: Sebastian Andrzej Siewior DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1643283197; 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=ZnqBSA0fX+jQu5NWHLqll8brJ7sQU9NzIdODqyqj1bE=; b=Q+dMM7Q2U8ZnFsJmtKBKMyTFK/NwRUspp1jHd025ymaNdAH5HG9m0qiDDdFo+8SsD1OOSq XhdLxpNsvdbW3GHcLOPc9t7tE2/yeZ1SAyZyAkZL+bCN7Eq4cuaHr7Ns4HSm8F2SYw6BMV YyOss4QzJNl8H6ssjX9r65ps2LL8mLpE9DFH17Tk8InkYZ05Tp/Vsres/zQ6VXQN75xqSo +uBsTPjrrVLXC9cAVrMcId5bJ9xPB6pcor8DdgeKkLo8tnIds7qf5yp6MhfUA+VGr9td0R OuHLpeSt61TkUDdzwZiKsAf+o7YQ2uaCnLw78ftXIZrhfEpcRRi8vkfeGsz+jQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1643283197; 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=ZnqBSA0fX+jQu5NWHLqll8brJ7sQU9NzIdODqyqj1bE=; b=HfV/uD24kkWJpBncedkJYbJ9LHCd+gIicOaa3Ov9P9oJotKouxwL0LxvVjE4w8l7PdLzLT s7HbM7nauDjMhFDw== 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 7/7] staging: greybus: gpio: Use generic_handle_irq_safe(). Date: Thu, 27 Jan 2022 12:33:03 +0100 Message-Id: <20220127113303.3012207-8-bigeasy@linutronix.de> In-Reply-To: <20220127113303.3012207-1-bigeasy@linutronix.de> References: <20220127113303.3012207-1-bigeasy@linutronix.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Instead of manually disabling interrupts before invoking use generic_handle_irq() which can be invoked with enabled and disabled interrupts. Signed-off-by: Sebastian Andrzej Siewior --- drivers/staging/greybus/gpio.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c index 7e6347fe93f99..8a7cf1d0e9688 100644 --- a/drivers/staging/greybus/gpio.c +++ b/drivers/staging/greybus/gpio.c @@ -391,10 +391,7 @@ static int gb_gpio_request_handler(struct gb_operation *op) return -EINVAL; } - local_irq_disable(); - ret = generic_handle_irq(irq); - local_irq_enable(); - + ret = generic_handle_irq_safe(irq); if (ret) dev_err(dev, "failed to invoke irq handler\n");