From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from canpmsgout07.his.huawei.com (canpmsgout07.his.huawei.com [113.46.200.222]) (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 8F7812080C1; Thu, 11 Dec 2025 01:32:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=113.46.200.222 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765416768; cv=none; b=myaFq8yS4u5ptC6htYE8tFOO+YcD67hFDIROsWUBOM11wVeOUclg5tr/CoPi9npIz/a1zMPIhltF+vNFg6Kds75WgQVmrbKw9mXnhydnEtHg1erA8AB+WruvFm6W6wza0NXoAaEBEAzbJvERarMJTKV65I1vrhKpHlEpR7IkGbo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765416768; c=relaxed/simple; bh=6xhwZ4khl+P1mzPBhEd0FwGKWm0rObg2fIHQecnwb0w=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type; b=fb5YuazQ/0HVwCH1vHsS6fTlijweBZ3jZLya6F0gBWzUvuzFuS6L2JJ1Hn6L7Az46C5QlirBuYRsk3Ez3Wa/IhtbmpAzrp2/gM+B05bSUYMu2nHrnoqPGlIn0JcN27WL/G6sj8Ng9UUV/3oku7Vy9wpAGvY9PwHBclBNfMjQEkU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b=gqp5YMnp; arc=none smtp.client-ip=113.46.200.222 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=huawei.com header.i=@huawei.com header.b="gqp5YMnp" dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=JloQNINlepMKfdGVIwv/D2EYH1al+8w9wTxKBODGNLo=; b=gqp5YMnptnHVPnH2Nh9bKEErVud3/30HayCm2UviVts/TblwCAdFEa/841e58qCE5JMhNqDUO KBwNLAwky/33AG53FUba+WzsYCVfWgqaJhIctiZc0YXlRGoO7dZY6HDU9bs7aWCf9wBYVwDLiq0 SzDNB4GUWpp5vlANJ+FSRNU= Received: from mail.maildlp.com (unknown [172.19.163.17]) by canpmsgout07.his.huawei.com (SkyGuard) with ESMTPS id 4dRZm44bH3zLlTc; Thu, 11 Dec 2025 09:30:44 +0800 (CST) Received: from dggpemf500011.china.huawei.com (unknown [7.185.36.131]) by mail.maildlp.com (Postfix) with ESMTPS id 23A041A0188; Thu, 11 Dec 2025 09:32:41 +0800 (CST) Received: from [10.67.109.254] (10.67.109.254) by dggpemf500011.china.huawei.com (7.185.36.131) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Thu, 11 Dec 2025 09:32:40 +0800 Message-ID: <7d0e0ce8-91da-0fd4-e509-27961388af60@huawei.com> Date: Thu, 11 Dec 2025 09:32:39 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.2.0 Subject: Re: [PATCH 1/6] genirq: Remove IRQ timing tracking infrastructure Content-Language: en-US To: Marc Zyngier , , CC: Daniel Lezcano , Thomas Gleixner , Thomas Bogendoerfer , Joshua Kinard References: <20251210082242.360936-1-maz@kernel.org> <20251210082242.360936-2-maz@kernel.org> From: Jinjie Ruan In-Reply-To: <20251210082242.360936-2-maz@kernel.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-ClientProxiedBy: kwepems100001.china.huawei.com (7.221.188.238) To dggpemf500011.china.huawei.com (7.185.36.131) On 2025/12/10 16:22, Marc Zyngier wrote: > The IRQ timing tracking infrastructure was merged in 2019, but was > never plumbed in, is not selectable, and is therefore never used. > > As Daniel agrees that there is little hope for this infrastructure > to be completed in the near term, drop it altogether. > > Signed-off-by: Marc Zyngier > Link: https://lore.kernel.org/r/87zf7vex6h.wl-maz@kernel.org > --- > include/linux/interrupt.h | 6 - > kernel/irq/Kconfig | 3 - > kernel/irq/Makefile | 4 - > kernel/irq/handle.c | 2 - > kernel/irq/internals.h | 110 ----- > kernel/irq/manage.c | 3 - > kernel/irq/timings.c | 959 -------------------------------------- > lib/Kconfig.debug | 8 - > 8 files changed, 1095 deletions(-) > delete mode 100644 kernel/irq/timings.c Reviewed-by: Jinjie Ruan > > diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h > index 266f2b39213a0..44e335b17ed64 100644 > --- a/include/linux/interrupt.h > +++ b/include/linux/interrupt.h > @@ -871,12 +871,6 @@ static inline void init_irq_proc(void) > } > #endif > > -#ifdef CONFIG_IRQ_TIMINGS > -void irq_timings_enable(void); > -void irq_timings_disable(void); > -u64 irq_timings_next_event(u64 now); > -#endif > - [...] > - > config TEST_LKM > tristate "Test module loading with 'hello world' module" > depends on m