From nobody Thu Dec 18 18:17:38 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 30D66280A57 for ; Tue, 29 Apr 2025 06:55:03 +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=1745909704; cv=none; b=aL1Pulexka/iyXbWSm9DPlQEFqoAGfdB+VTur//Ig+J3QBS/kLzn7KMXNK4QLMSKSJAiLuwnBZPETzcYLc65iXCucaQ2d/l7rx2JkWp73CSNt8qWKd32fSvQEg68JDMcc/4XmtJmLInCowgKLWoLhjpNjw49F+5Zhn9BzWQkBBs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745909704; c=relaxed/simple; bh=+pGm+87RV33jEvsOAQNhY7ERqZsLYXRP2LLkYG9zh0g=; h=Message-ID:From:To:Cc:Subject:References:MIME-Version: Content-Type:Date; b=JdHTkGpmPaju3JWlGlAXgbuoNH/yebBgQw45mgAsZeqQc5uhUCcd10L+GsxPBp+RlLHmWqypBqospmcpy+h14f2JFXtygFsd/COJ5YosDPfOI6MDUzrzEeEk3/QMcym5pVbw18a9xXhzSjzZrLl30DCrrW4B1hGuJscBoH+N2TU= 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=F6MU4OIL; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=A9WZ9W9Y; 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="F6MU4OIL"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="A9WZ9W9Y" Message-ID: <20250429065420.560083665@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1745909701; 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=1fztzzmyuBZmFHvPkzd1352r9hM/gYhsCUv4KQIAziY=; b=F6MU4OIL878vuFRwhz/BTpiBhHS6CawswyZgqz+IkA1qPo/qASkToxtmLyjvDnsmS8OzEU Saais4m8hXaQA5LjUMjMlcPlNrUtXCcd13/oHGzCPan1mcDgBJHYXlRoBZpgBgQVpefbSp zCXaPL7Wlt8SjfVLfN7ELM7fIwFIjbQrOW3MbxyLPtyNZ0FKMN79I/5R0qu4rVHddWetDM Z/mtC89hQvEFaKxXHIBQfDCeDMOHp8vFNcJrNp6E+Ek4Km4v3WftDgT9ZnZhdZvr2/dxSP FWT191etjyQBr4oBx7qOnpqR3P1k5JF1BXepiJLNJYc03lhJ/4dNb0sH3LOp2A== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1745909701; 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=1fztzzmyuBZmFHvPkzd1352r9hM/gYhsCUv4KQIAziY=; b=A9WZ9W9YmY6V8l1DHrlwdkOkg83o678pfMHc2Yp2+2wBxZUNwMwsLTMUaNzagFG3AIABbV AnXYFTZYBUv2VMCA== From: Thomas Gleixner To: LKML Cc: Jiri Slaby , Peter Zijlstra Subject: [patch V2 09/45] genirq/cpuhotplug: Convert to lock guards References: <20250429065337.117370076@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Tue, 29 Apr 2025 08:55:01 +0200 (CEST) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Convert all lock/unlock pairs to guards and tidy up the code. No functional change. Signed-off-by: Thomas Gleixner --- kernel/irq/cpuhotplug.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) --- a/kernel/irq/cpuhotplug.c +++ b/kernel/irq/cpuhotplug.c @@ -177,9 +177,8 @@ void irq_migrate_all_off_this_cpu(void) bool affinity_broken; =20 desc =3D irq_to_desc(irq); - raw_spin_lock(&desc->lock); - affinity_broken =3D migrate_one_irq(desc); - raw_spin_unlock(&desc->lock); + scoped_guard(raw_spinlock, &desc->lock) + affinity_broken =3D migrate_one_irq(desc); =20 if (affinity_broken) { pr_debug_ratelimited("IRQ %u: no longer affine to CPU%u\n", @@ -244,9 +243,8 @@ int irq_affinity_online_cpu(unsigned int irq_lock_sparse(); for_each_active_irq(irq) { desc =3D irq_to_desc(irq); - raw_spin_lock_irq(&desc->lock); - irq_restore_affinity_of_irq(desc, cpu); - raw_spin_unlock_irq(&desc->lock); + scoped_guard(raw_spinlock, &desc->lock) + irq_restore_affinity_of_irq(desc, cpu); } irq_unlock_sparse();