From nobody Mon Dec 15 21:57:38 2025 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 899AF233D88; Wed, 7 May 2025 09:07:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746608848; cv=none; b=kfOpADH/1sJ+EEviZ47y8nb19Mgy051rmgyQvhCOwwqxzYQlpvli9vAY9arNTj2mes/ANaTyl165w+zZXQQBD7MaNQkfUwASxLP56Az28oedQcIvG+fBVionLwoYOoa0j6q/SlQ5LFUMlpTqUWEXzhSLHz+Cz1aKFC1yffAWiYo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746608848; c=relaxed/simple; bh=VX2S6lja5ZbVcHZc1mUyssIYH5e8AHhyRM7Jlk24zYQ=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=TRKKGK9bJ6rmXftylvT3XgxjpLoxNBdO8TKY80TIyHhxLfnukXdGsi5gXyLwGY9ZwSLxuM6U8kvJMlwNJ9S3+VWDFPrlTTBFlOf6fev7PHXOLRC2uBQDPiuPci7gGRKwxNW+EzrV3vN0VjW7UEzVnITvotEXJohHa6YPhdNcjUA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=TD4mwFf9; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=rEH8f0AY; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="TD4mwFf9"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="rEH8f0AY" Date: Wed, 07 May 2025 09:07:23 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1746608844; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pPCl88Jkd134MgQ/ExD5FQMnm5wnjLLM2zlL5sT6scc=; b=TD4mwFf9THwy1wFKj271uCVprb2MJOc7lE9njs9j20wMLCgsA0wQzSLni2bbNx6LUpzBpz prCA0UIh6sQH5XP3r5kkVXzFnj0mOB2aZ6OeKU8k/iuAonH2Vm4a/3L5b552DwZT69X5tc j6GMtLDWOihotBOXmmpZ4cgs/T2gDrS5KYqjWbZ5qIC7gS9NDVBzW9MBIyJIa6+QNERBzk 3sxGIuvalIYdrIm3Pdi5uk07n/Fjf07eWfnCawiWsdVrqltd9xZgj0fVmbFqrsEZ/Z2se7 L/kuHdEBQTFYUm7LpwV4wovE5eSOeCATTKbCk8uIk+wWEcF8StrzFHaV62XFYQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1746608844; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=pPCl88Jkd134MgQ/ExD5FQMnm5wnjLLM2zlL5sT6scc=; b=rEH8f0AYBF1bivKoeBr21pzjoH2vwa8C+1oZ4cajPndMUgR4JgtYepl15s0TlSaYBRZgnT 3pmc6xQweVC51tCA== From: "tip-bot2 for Thomas Gleixner" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: irq/core] genirq/manage: Rework irq_set_parent() Cc: Thomas Gleixner , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org In-Reply-To: <20250429065422.258216558@linutronix.de> References: <20250429065422.258216558@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <174660884395.406.11099834875422739763.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the irq/core branch of tip: Commit-ID: 90140d08ac7a1e1ea3136132e1fab9baec174c25 Gitweb: https://git.kernel.org/tip/90140d08ac7a1e1ea3136132e1fab9bae= c174c25 Author: Thomas Gleixner AuthorDate: Tue, 29 Apr 2025 08:55:43 +02:00 Committer: Thomas Gleixner CommitterDate: Wed, 07 May 2025 09:08:15 +02:00 genirq/manage: Rework irq_set_parent() Use the new guards to get and lock the interrupt descriptor and tidy up the code. No functional change. Signed-off-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Link: https://lore.kernel.org/all/20250429065422.258216558@linutronix.de --- kernel/irq/manage.c | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index b6f057a..a08bbad 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -959,16 +959,11 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned= long flags) #ifdef CONFIG_HARDIRQS_SW_RESEND int irq_set_parent(int irq, int parent_irq) { - unsigned long flags; - struct irq_desc *desc =3D irq_get_desc_lock(irq, &flags, 0); - - if (!desc) - return -EINVAL; - - desc->parent_irq =3D parent_irq; - - irq_put_desc_unlock(desc, flags); - return 0; + scoped_irqdesc_get_and_lock(irq, 0) { + scoped_irqdesc->parent_irq =3D parent_irq; + return 0; + } + return -EINVAL; } EXPORT_SYMBOL_GPL(irq_set_parent); #endif