From nobody Thu Dec 18 18:17:34 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 8859D26FD9F for ; Thu, 13 Mar 2025 16:00:41 +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=1741881643; cv=none; b=jOGHhx9uqGKf44OeRSEU0QBK0FQrqhDVVqVpXfrMhL5HZBf3wOfEKdOAkqaYmzggDpax13hsOm7XvLJbZnfOL46sbaAFY/83+7vsnx46QPShWkLsappG21Eu46xOFhRMK0V+i5fC6VITjUxgZxZlJwdbOOQU172dRbtXRz9pC8M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741881643; c=relaxed/simple; bh=fX+9V4hA3EQMuF54WJ/NA4nHJQFLadOEmXV9GbY9xOc=; h=Message-ID:From:To:Cc:Subject:References:MIME-Version: Content-Type:Date; b=r0PB0b8fC0IplYOOCZ87kw9f09AML4TPRLV+ZSgSRdnxrP9/K2f5SWsoC2u3Bl+gxw3DjU5OUB2BTzYSbmbegQ85hjQFt3x6QOow0JmtaWKsqQQCPd2mS6Gjgni3n/ZVEXk6lCzKyazD7zDfhtdhwS/TZt2umqyk7wvZxq1hbDs= 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=3gTtskj3; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=G8L+RlfU; 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="3gTtskj3"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="G8L+RlfU" Message-ID: <20250313155916.130540523@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1741881639; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=yrnX7COU4LFeImoI8Wb78L4FNIeSjf4l0HTLETlsEkY=; b=3gTtskj3yBKtHpIed725QXcgfplI1mgd78ieU55TvqMuc8u4fkLP8sf3DKMAcWaObdI1kO /051GjvL9IRAu0oPcI04bL1WIU/f8CeOlsSnwavwbKVXNY7lIc7+C7NynNIr+VgWppHjxv DCIBrG+fN//9i+y36v+YsveTHO+Q+sxHMLaKOsTaRNCLTgXAKdpqWn9nziBoh/UmmNfgmy t3SOrAoJ1tFzXeIwDxrMfr1MekFqzjsgFRpsaK+M1J/jRnSXSknqQAkNTHCGthk5AMJM56 zUOhH7yhJr6uojmn2rjuyz0ykrMMzdTssASTc3b/mxZdt9tAaZUXbksqOvVTlw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1741881639; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=yrnX7COU4LFeImoI8Wb78L4FNIeSjf4l0HTLETlsEkY=; b=G8L+RlfUS8GAG+AZEcnKWEXydxCbgxnE+2tIp/gO+K1sMoDNExc+TanGbYeqFqvyJ+H2Ba pafk/5nxpf3eSRCw== From: Thomas Gleixner To: LKML Cc: Peter Zijlstra , Jiri Slaby Subject: [patch 33/46] genirq/manage: Rework irq_set_vcpu_affinity() References: <20250313154615.860723120@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Thu, 13 Mar 2025 17:00:39 +0100 (CET) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use the new guards to get and lock the interrupt descriptor and tidy up the code. No functional change. Signed-off-by: Thomas Gleixner --- kernel/irq/manage.c | 40 +++++++++++++++++----------------------- 1 file changed, 17 insertions(+), 23 deletions(-) --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -627,32 +627,26 @@ int irq_setup_affinity(struct irq_desc * */ int irq_set_vcpu_affinity(unsigned int irq, void *vcpu_info) { - unsigned long flags; - struct irq_desc *desc =3D irq_get_desc_lock(irq, &flags, 0); - struct irq_data *data; - struct irq_chip *chip; - int ret =3D -ENOSYS; + scoped_irqdesc_get_and_lock(irq, 0) { + struct irq_desc *desc =3D scoped_irqdesc; + struct irq_data *data; + struct irq_chip *chip; + int ret =3D -ENOSYS; =20 - if (!desc) - return -EINVAL; + data =3D irq_desc_get_irq_data(desc); + do { + chip =3D irq_data_get_irq_chip(data); + if (chip && chip->irq_set_vcpu_affinity) + break; =20 - data =3D irq_desc_get_irq_data(desc); - do { - chip =3D irq_data_get_irq_chip(data); - if (chip && chip->irq_set_vcpu_affinity) - break; -#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY - data =3D data->parent_data; -#else - data =3D NULL; -#endif - } while (data); + data =3D irqd_get_parent_data(data); + } while (data); =20 - if (data) - ret =3D chip->irq_set_vcpu_affinity(data, vcpu_info); - irq_put_desc_unlock(desc, flags); - - return ret; + if (data) + ret =3D chip->irq_set_vcpu_affinity(data, vcpu_info); + return ret; + } + return -EINVAL; } EXPORT_SYMBOL_GPL(irq_set_vcpu_affinity);