Received: by 2002:a05:6a10:9848:0:0:0:0 with SMTP id x8csp2102712pxf; Sat, 13 Mar 2021 07:50:17 -0800 (PST) X-Google-Smtp-Source: ABdhPJwC0JSnLmtTvOZh+HrxSpGbZbv+WVbNrR9b0ugp3Grrkx0VvxwrYhdBNl5pfP9OUyCiZpSR X-Received: by 2002:a17:906:565a:: with SMTP id v26mr14786664ejr.516.1615650616908; Sat, 13 Mar 2021 07:50:16 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1615650616; cv=none; d=google.com; s=arc-20160816; b=uMwicb4Bcevm2S16wATQUv9HcJj7xbF1GHbIfbAGoLjwFrMbqx9F4zoS1NDFgQHFRS SEmOqmurzixnCSYeDTf+mdf0gnVOOfVJeZ2DH0zpv7RufpZwj7nE7N3UzAcN0WpjIycc aTtrrGFSnHgphdQ15AMsmt4hhMnkgR++0Di4tqT0YG8Gvvtf8xOdSpkxqabOx5tREBja lePzxz1GsOj8Mp7DXWEtRoCxS0T8vK7TCtKC4AwxqBmRMR+Xg7a+O0I+gd2uD/dQ8JAz V9TaVPpeKKKITpcg6NRFyjEWA5V03lsvvqxEAjyNOawXb+YDjEP6E7pFiQfH1NqwbScI wLGg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:user-agent:references:message-id :in-reply-to:subject:cc:to:from:date:dkim-signature; bh=6kpFH7Cv8WbpKwzAUNABmpMLw3rPC0MToEeC6Du4OxI=; b=TvUjY919kh8bYl65kT2J7w1UIyJ5f1lKp15kfVG+b+AWwhgp4KiLPBaCMuAlap8XX4 6dm91M1c9Oh9oUizILIefvp2oKiA/023ceWW/PXBW2BFR540N/uyyt6iMhUW5qIlLUna 6kr48yGy77GaWy1kNeyNUgp+hlbCGpkKlY5iF9WXBM8GtMWU2CnFrkCvzfIfF/72gFve A4kYb6x/sS3dgUBTyaTi9uXQv7R3HWFuKrjhXr3LPQ3a+qy17Hh6yVMto4GW4iZKg3qv fxIITShVgnLbLcYVSTFFgybz0JlaGnUhGJh6sNRM2DFSdSr4pMo2RKEa9OOvhzNaRbH7 hLxA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=A5aYnw9s; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id y6si6662039ejp.143.2021.03.13.07.49.33; Sat, 13 Mar 2021 07:50:16 -0800 (PST) Received-SPF: pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=A5aYnw9s; spf=pass (google.com: domain of linux-wireless-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-wireless-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233685AbhCMPno (ORCPT + 99 others); Sat, 13 Mar 2021 10:43:44 -0500 Received: from mail.kernel.org ([198.145.29.99]:39304 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233478AbhCMPnO (ORCPT ); Sat, 13 Mar 2021 10:43:14 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 553A364E07; Sat, 13 Mar 2021 15:43:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615650194; bh=giY0FNup90bsA9e7Qg8ciSUPfUygNZHjbQUyRstuaPw=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=A5aYnw9sIjY/tOhchJui1crLf0TwokhL9XpQD/RcEeYrUAjIN4qiPvt1GRaou5ukF vGFAz2vRkTPxpCkMQs+ZW9uvbkmxPO3NZ7xqIhm3nh4Yk6f0A+YcQ2i/C6trUjUKjg F5e8r3y8Fzb1fMBvq4ouU/BQU7dEHkSbxwb0FLVCnI7I+NG/J4/EPKvtpmrmayASMX ElFr1+bx+/UT7l4NWLQeukTBx3q3nkM9h3i46XGfv4Im+t9wF+T4iaa2145LjA1xA6 XF2XtC7nJyZcwwKf5EacdoesEjGTRGVkOdccvI9KvNv2ktgAR0OaZjM6YjHDMMX8EF 6V1ouSogJzoQg== Date: Sat, 13 Mar 2021 16:43:10 +0100 (CET) From: Jiri Kosina To: Kalle Valo cc: Luca Coelho , Johannes Berg , Emmanuel Grumbach , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] iwlwifi: Fix softirq/hardirq disabling in iwl_pcie_enqueue_hcmd() In-Reply-To: <87h7lfbowr.fsf@tynnyri.adurom.net> Message-ID: References: <87h7lfbowr.fsf@tynnyri.adurom.net> User-Agent: Alpine 2.21 (LSU 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On Sat, 13 Mar 2021, Kalle Valo wrote: > >> > From: Jiri Kosina > >> > > >> > It's possible for iwl_pcie_enqueue_hcmd() to be called with hard IRQs > >> > disabled (e.g. from LED core). We can't enable BHs in such a situation. > >> > > >> > Turn the unconditional BH-enable/BH-disable code into > >> > hardirq-disable/conditional-enable. > >> > > >> > This fixes the warning below. > >> > >> Hi, > >> > >> friendly ping on this one ... > > > > Luca, > > > > Johannes is telling me that he merged this patch internally, but I have no > > idea what is happening to it ... ? > > > > The reported splat is a clear bug, so it should be fixed one way or the > > other. > > Should I take this to wireless-drivers? I can't speak for the maintainers, but as far as I am concerned, it definitely is a 5.12 material, as it fixes real scheduling bug. Thanks, -- Jiri Kosina SUSE Labs