From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82B8FC4363A for ; Thu, 29 Oct 2020 01:01:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 35B0220790 for ; Thu, 29 Oct 2020 01:01:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603933288; bh=DberZiErRVOoIhqno/qoc+dXE44GikMCW9mm2pyaM0c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=BGt4PIpNAuVXsM/IBbLmVL/XuHYnVwu+IYlbZO1eyC2dRppCcA5tNaESOaOwelei/ MpvGucwYTdfEK7sXFll1+sIUBZ5LKdqA7THiqvbQNEn5LKnylP69juNM8keov9+fpe TBkrxoE3zKxbOOHIxc2DM2hOnEESgzLRa0HMQD7M= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404072AbgJ2BB1 (ORCPT ); Wed, 28 Oct 2020 21:01:27 -0400 Received: from mail.kernel.org ([198.145.29.99]:60510 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731192AbgJ1WR1 (ORCPT ); Wed, 28 Oct 2020 18:17:27 -0400 Received: from localhost (i15-lef02-th2-89-83-213-3.ft.lns.abo.bbox.fr [89.83.213.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 16DBE2416E; Wed, 28 Oct 2020 13:34:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603892063; bh=DberZiErRVOoIhqno/qoc+dXE44GikMCW9mm2pyaM0c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=hdJOXD2GirTHcSEv+h2FezILG4lelgQcsvMT01NY7rMhI4eBAPJufKv43GiXfe2sL YmqfoyOx8V2kggfcfGwugJyjFd2EmKXHgQwgWIwxC+ONrq8OXwiMePOfX2+3n0sWqF vsYpSBkjsJYUu5RTMRbnS7EGb+/EDu93mYxRNiMY= Date: Wed, 28 Oct 2020 14:34:20 +0100 From: Frederic Weisbecker To: Peter Zijlstra Cc: mingo@kernel.org, linux-kernel@vger.kernel.org, will@kernel.org, paulmck@kernel.org, hch@lst.de, axboe@kernel.dk, chris@chris-wilson.co.uk, davem@davemloft.net, kuba@kernel.org, fweisbec@gmail.com, oleg@redhat.com, vincent.guittot@linaro.org Subject: Re: [PATCH v3 4/6] irq_work: Unconditionally build on SMP Message-ID: <20201028133420.GD229044@lothringen> References: <20201028110707.971887448@infradead.org> <20201028111221.464733855@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201028111221.464733855@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Oct 28, 2020 at 12:07:11PM +0100, Peter Zijlstra wrote: This may need a changelog :-) > > Signed-off-by: Peter Zijlstra (Intel) > --- > kernel/Makefile | 1 + > kernel/irq_work.c | 3 +++ > 2 files changed, 4 insertions(+) > > --- a/kernel/Makefile > +++ b/kernel/Makefile > @@ -105,6 +105,7 @@ obj-$(CONFIG_TRACE_CLOCK) += trace/ > obj-$(CONFIG_RING_BUFFER) += trace/ > obj-$(CONFIG_TRACEPOINTS) += trace/ > obj-$(CONFIG_IRQ_WORK) += irq_work.o > +obj-$(CONFIG_SMP) += irq_work.o > obj-$(CONFIG_CPU_PM) += cpu_pm.o > obj-$(CONFIG_BPF) += bpf/ > obj-$(CONFIG_KCSAN) += kcsan/ > --- a/kernel/irq_work.c > +++ b/kernel/irq_work.c > @@ -20,6 +20,7 @@ > #include > #include > > +#ifdef CONFIG_IRQ_WORK > > static DEFINE_PER_CPU(struct llist_head, raised_list); > static DEFINE_PER_CPU(struct llist_head, lazy_list); > @@ -212,3 +213,5 @@ void irq_work_sync(struct irq_work *work > cpu_relax(); > } > EXPORT_SYMBOL_GPL(irq_work_sync); > + > +#endif /* CONFIG_IRQ_WORK */ > >