From nobody Thu Dec 18 18:17:40 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 A35F82C2584 for ; Tue, 29 Apr 2025 06:55:48 +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=1745909750; cv=none; b=iBHJ0Bu5aoWcOoa1aAyMAcLq9HLihHsKBRUjTj1QD9ydT9AEEWrSgfsmTJDj6Hx2fAWcXpc0Sr24ef0jOeRIEhGfpxEBvQmk7RO+3blovpqTg8cHGD4etMzYyI0/ZzoAA/yRDKyPMP4Ut9kXU9vxyepUVsn82yXexU1tGN89JR8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745909750; c=relaxed/simple; bh=2XxpC2RxhOA7srYB+U7Vp2rZuFSoscf2aU9AyMnU7b8=; h=Message-ID:From:To:Cc:Subject:References:MIME-Version: Content-Type:Date; b=kddpEltkxGQpxrxBj4YLRTNdf1OoTR0NNb5RatrZr7bfDH5boqqHq598/AjIwECUrdc5kpz+6P4mWNOMYcISA1+oAk1bW5Zx6S57zq2gJC5GASnubxZbsjRNfyTKB9xPB6KzsMt5aZ63tEluj3RsCgwXh4r6FG64yj3Mq4gVndw= 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=0Rbu3fzF; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=OiwUQlw2; 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="0Rbu3fzF"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="OiwUQlw2" Message-ID: <20250429065422.376836282@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1745909746; 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=y0RQv0Usg6hq2Yp5lrhta5X/eMpx9K5AAvjl1AWK/n8=; b=0Rbu3fzFw7EIo3Mi5SR33dZmt3k0pbykzFBj/SmgivzDpBEnTg424CVlRfNgofGkQPe16o BRdTB0JGpiztLi2+2Qk+u/tgexQf7WqkocqVyVHNrZL7yX1VGJfC+rvdPndg/M9oKYYmB0 x1K7DSGEkrS1x525WcmKy/TQ2pr35Rm1iw950JHRqk+4th0bbng/HavqfvXnQHSXuIKsBW k4+i6A0pwq20XgRnj/Dl1uknQrRTt30Jsrg/EjerAL4XWpVPhOavCQameDQw+JS5mQXC8V MQdCkUCCDAATaDINu9Z5oY8HYbpESbsHkCcpwW1ufzacnG/tc8MsEwNOTnuQ+Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1745909746; 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=y0RQv0Usg6hq2Yp5lrhta5X/eMpx9K5AAvjl1AWK/n8=; b=OiwUQlw2LMJzTqIDPLhoIpqd+Lz65KXZQR/BczY3P++XZDJ+BoQ1bgV7//2/3xWdgEQ9cH 3bG4IyGvAhZEotAQ== From: Thomas Gleixner To: LKML Cc: Jiri Slaby , Peter Zijlstra Subject: [patch V2 39/45] genirq/manage: Rework irq_percpu_is_enabled() 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 08:55:46 +0200 (CEST) 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);