From mboxrd@z Thu Jan 1 00:00:00 1970 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 61056408237; Wed, 1 Apr 2026 12:29:12 +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=1775046554; cv=none; b=BHWGSY0Kfrf74kvlDvtakFzGZ68ocFFT8g51GkHVaxFf1t180cNwqRPrd5ECAlpnsui30pscdEDfxoyH795+tGIq4fqK1Z3KbArVF97fUlH5iJW1JZG3q4XA3X1tN/VtLRLYCQG0GTpegaYSMsMGx+7Oya/7TmH2M1S7XJdFzOU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775046554; c=relaxed/simple; bh=pM9A3xWVLYKkCp+v4Zndq3piKQEjl5Ao/07hnkVmhfI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lNBpqvmZAKZ43QiiiqBnJr144xBmAqAgLXcovTm+Qp2BEY9OyKHdo2cMjY0CLKsrKyvDNPEthhBZL2J5UotKkkMybMCiY5wcWYhY9BPxP0ldD4NzDKKMdk/vdPArXCYqN8lAJZTmAtC26YIkhz3/qNd9jZkEc+lkXQk1R2/Ga7M= 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=ow5ot4/7; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=qOp4tiVP; 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="ow5ot4/7"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="qOp4tiVP" Date: Wed, 1 Apr 2026 14:29:08 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1775046550; 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: in-reply-to:in-reply-to:references:references; bh=Pz9yqm2xW/wCQ4BGxlKJbUUSrjAgVJCbne2YOojl5Rw=; b=ow5ot4/7H/V7sxugopOVzfq11RiQLgEIk56AtHOX8C9k31weT2EEv8mH8fvgN6XwYwTQqZ tdJI0PSbur5wNsxwwoc6yijnh24YFaQv8uIxVAKyEwSnQEWHH6l0giXU8QkfojzVYXXVqu v2KZBOOZFLZ6wrdW0zffbyoO2S9QMlAyMxmOUFcJCi1MXikAtg86Zrb9LaUMzpD/CsUh6l cD3dMQ+SsLhhXvq3TCeq1lI9B/827qksmzgVsCvkcpwssOiEkUj4uSBuuQmee/AiBPD0fs 84szdnT0eeoe4HOWtjS56WEmQsRSlTkhaKTxK0ecWHlqA4R53xIx+ybnBi6gtg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1775046550; 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: in-reply-to:in-reply-to:references:references; bh=Pz9yqm2xW/wCQ4BGxlKJbUUSrjAgVJCbne2YOojl5Rw=; b=qOp4tiVPsDEo2clqFhCTqobVu13lAnk+NbJ72USET8+2h2SlZW/GB06+cnnw27aZZhJtqQ 3AXCmSfon7P8jrCw== From: Sebastian Andrzej Siewior To: Aaron Tomlin Cc: axboe@kernel.dk, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, mst@redhat.com, aacraid@microsemi.com, James.Bottomley@hansenpartnership.com, martin.petersen@oracle.com, liyihang9@h-partners.com, kashyap.desai@broadcom.com, sumit.saxena@broadcom.com, shivasharan.srikanteshwara@broadcom.com, chandrakanth.patil@broadcom.com, sathya.prakash@broadcom.com, sreekanth.reddy@broadcom.com, suganath-prabu.subramani@broadcom.com, ranjan.kumar@broadcom.com, jinpu.wang@cloud.ionos.com, tglx@kernel.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, akpm@linux-foundation.org, maz@kernel.org, ruanjinjie@huawei.com, yphbchou0911@gmail.com, wagi@kernel.org, frederic@kernel.org, longman@redhat.com, chenridong@huawei.com, hare@suse.de, kch@nvidia.com, ming.lei@redhat.com, steve@abita.co, sean@ashe.io, chjohnst@gmail.com, neelx@suse.com, mproche@gmail.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux.dev, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, megaraidlinux.pdl@broadcom.com, mpi3mr-linuxdrv.pdl@broadcom.com, MPT-FusionLinux.pdl@broadcom.com Subject: Re: [PATCH v9 02/13] lib/group_cpus: remove dead !SMP code Message-ID: <20260401122908.hxUnR63u@linutronix.de> References: <20260330221047.630206-1-atomlin@atomlin.com> <20260330221047.630206-3-atomlin@atomlin.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20260330221047.630206-3-atomlin@atomlin.com> On 2026-03-30 18:10:36 [-0400], Aaron Tomlin wrote: > From: Daniel Wagner > > The support for the !SMP configuration has been removed from the core by > commit cac5cefbade9 ("sched/smp: Make SMP unconditional"). !SMP is not dead code here. You can very much compile a !SMP kernel at which point the code below will be used. It is more that the sched department decided that scheduler's maintenance will be easier since we don't have to deal with !SMP case anymore. If you wish to remove the !SMP case here you need to argue as such. > Signed-off-by: Daniel Wagner > Reviewed-by: Hannes Reinecke The previous patch, this one and probably the following lack a Signed-off-by line with your name. Sebastian