From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18])
	(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 6437833E7;
	Sat, 23 May 2026 01:45:48 +0000 (UTC)
Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18
ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;
	t=1779500749; cv=none; b=HXsYR0te7HbI9bwcMHn29vaS520SwtwczmD7TV/UBkCZLNN3vVFn3KQP0Or0+6FszDpvay9LbVH9UCVBWYhyYOBDNgaChFuYwuCEObPUl0fCQf4SevGyG9pNbJZ0Tnp7hgPNM2ReiT9YZ2uN5MkOpXs3Mw/cPx4js5+YANzPtqw=
ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org;
	s=arc-20240116; t=1779500749; c=relaxed/simple;
	bh=npCUqI490PRptwu4ZGTwPcZzb4RCTp9ZxAj7I/pPMeI=;
	h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References:
	 MIME-Version:Content-Type; b=aCmTd8phLOEsJ07kBmirJzjPo37n5zDTx3FaTWjH4Lcv3ASwvpcwn0DEOlohKOVJhIWVOa9qyqwsrdAM3wnubmPODVyh6Vav19qpetPfgUbGQjoE0u951LpPY0Ug8GIrQQtQOzGJRR52K5es6BkZuB1egPh6a7YCgalv1WIG6xY=
ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MvtZEsG8; arc=none smtp.client-ip=100.103.45.18
Authentication-Results: smtp.subspace.kernel.org;
	dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MvtZEsG8"
Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6BD261F000E9;
	Sat, 23 May 2026 01:45:46 +0000 (UTC)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org;
	s=k20260515; t=1779500748;
	bh=pvrv1h2YtaxLeHVYBfz/LqY0BX/aHmJKlWG1cpkGMaE=;
	h=Date:From:To:Cc:Subject:In-Reply-To:References;
	b=MvtZEsG8FHoC78cJtO+Cdd6uqMGryX+mVwM0GiuLE0LDsBcQnfTHi59T1S1iQqJ0A
	 CXTxULGnYSJyfxfIeCN9kPIaYd3qnU9B5PJXCmQChxSUVpEP+H8l9bJEDQAdn800NB
	 MyeeNmSTM8wy4U4UPW1OW7OB+yyPvaZOla9Ax8o4cwIzd7ofMTzyITzNre2cNboIkC
	 IJ+b9p7no/kxLVYouATjNEI66SeYGkKFnzwmKHFY5+wUZPuVbNet9RtjaatwjCncTk
	 wfDkpVil5ol8dYNb+G1h1RgqmdYBHlrMQZSYj0Ax9HD1tr/n3SY2Wbb+U06cKBMOfd
	 jvnP04P7fHv7w==
Date: Fri, 22 May 2026 18:45:45 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Daniel Machon <daniel.machon@microchip.com>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>, "David S. Miller"
 <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Paolo Abeni
 <pabeni@redhat.com>, Horatiu Vultur <horatiu.vultur@microchip.com>, Steen
 Hegelund <steen.hegelund@microchip.com>, <UNGLinuxDriver@microchip.com>,
 "Alexei Starovoitov" <ast@kernel.org>, Daniel Borkmann
 <daniel@iogearbox.net>, "Jesper Dangaard Brouer" <hawk@kernel.org>, John
 Fastabend <john.fastabend@gmail.com>, Stanislav Fomichev <sdf@fomichev.me>,
 Herve Codina <herve.codina@bootlin.com>, Arnd Bergmann <arnd@arndb.de>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Mohsin Bashir
 <mohsin.bashr@gmail.com>, <netdev@vger.kernel.org>,
 <linux-kernel@vger.kernel.org>, <bpf@vger.kernel.org>,
 <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH net-next v5 08/13] net: lan966x: add shutdown callback
 to stop FDMA on reboot
Message-ID: <20260522184545.43e00be3@kernel.org>
In-Reply-To: <20260520-lan966x-pci-fdma-v5-8-ca56197ae05b@microchip.com>
References: <20260520-lan966x-pci-fdma-v5-0-ca56197ae05b@microchip.com>
	<20260520-lan966x-pci-fdma-v5-8-ca56197ae05b@microchip.com>
Precedence: bulk
X-Mailing-List: netdev@vger.kernel.org
List-Id: <netdev.vger.kernel.org>
List-Subscribe: <mailto:netdev+subscribe@vger.kernel.org>
List-Unsubscribe: <mailto:netdev+unsubscribe@vger.kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

On Wed, 20 May 2026 10:12:20 +0200 Daniel Machon wrote:
> +	napi_synchronize(&lan966x->napi);
> +	napi_disable(&lan966x->napi);

Why the synchronize() before disable() ?
napi_synchronize() is a simplistic disable() + enable()