From nobody Thu Dec 18 18:20:11 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 C7A5E270ED1 for ; Thu, 13 Mar 2025 16:00:53 +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=1741881655; cv=none; b=HUE9JiJwPhlbQHjpMHK/jjHqH9GbWfQbufj3mp3BDQg8pYw61ifYjW5VETIrePKRWv+bXQSjalyVT2frG+fGVEHzgoeuOYG12SYELZA/AHObyiegHCOBSMnv9MjhhoKQWyB3ZVTL739iy5+gAZ0t81PlWfr90AQvA8FkPviWed8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741881655; c=relaxed/simple; bh=mVXxcoK3WExTSdKgmIUUyG89B2x71ZcLZlRZ5GExM7Q=; h=Message-ID:From:To:Cc:Subject:References:MIME-Version: Content-Type:Date; b=KvkccBGCLp3+mDTdiPX6gdb/Ide+PRPYb0qpd07+k0myfdTcgJCz3shQH5xlDzm3y4x56nwzwZTve4YEZ4Sga1wqRIheSeCxgfbuwqupaZIjV846/e7bH6aC6brreipuX4Jzo5eYDjLaSiAHNm+h5vNAYHA8IzkcBaBnsVcKjiI= 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=IC2k4W1/; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=Rl3gPVMA; 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="IC2k4W1/"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="Rl3gPVMA" Message-ID: <20250313155916.593648845@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1741881652; 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=TFhQSReQb2KUOo2saM7MJ3Hp8TV3kdr6sRN4/io4++4=; b=IC2k4W1/9M3la0gilvJUi6wUnDvJlVEfEklt5Nlj5anbj1dIVwDfaJ+VZF4PTVav6jdBk0 FWuHoZib++0C5zhHP3c8n+8Wyh5CPJeCisVGAX/bo5Zyybt6v0j0Jz6NsedLJB9Dn9yZSB JomuKT5Vg0M7qiBWN7HzGKgxDMxv5TZPLribaDfCEzXpb3gqw3IiRDOZIc5AhJPaG8/U8f omaJleK31vjjtiQ7P71hOXWZTti4q37Yo9O+H7KP3iv799qAJIQEa9MpCBUkCmftjRXTmT m4CUdCe+Q4wxnSSQrpkbIzfhiW69jH2uHy6XA8ZnxX1GoegdGgotr9HtOT4tkA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1741881652; 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=TFhQSReQb2KUOo2saM7MJ3Hp8TV3kdr6sRN4/io4++4=; b=Rl3gPVMABG75qcj3fJGM0ZdBL/Mha0kIvpGDBBxL/rfYD2MG+/c3908Md6a/v08OTp0yXp jjfIPKuMCTpZO9Bw== From: Thomas Gleixner To: LKML Cc: Peter Zijlstra , Jiri Slaby Subject: [patch 40/46] genirq/manage: Rework irq_percpu_is_enabled() 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 17:00:51 +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 | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -2321,19 +2321,9 @@ void enable_percpu_nmi(unsigned int irq, */ bool irq_percpu_is_enabled(unsigned int irq) { - unsigned int cpu =3D smp_processor_id(); - struct irq_desc *desc; - unsigned long flags; - bool is_enabled; - - desc =3D irq_get_desc_lock(irq, &flags, IRQ_GET_DESC_CHECK_PERCPU); - if (!desc) - return false; - - is_enabled =3D cpumask_test_cpu(cpu, desc->percpu_enabled); - irq_put_desc_unlock(desc, flags); - - return is_enabled; + scoped_irqdesc_get_and_lock(irq, IRQ_GET_DESC_CHECK_PERCPU) + return cpumask_test_cpu(smp_processor_id(), scoped_irqdesc->percpu_enabl= ed); + return false; } EXPORT_SYMBOL_GPL(irq_percpu_is_enabled);