From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) (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 2223E14EC73; Wed, 15 Oct 2025 14:37:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=216.40.44.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760539080; cv=none; b=Kq7yhQVeTPlidkxUs6VA/cSCJBnDfydgLxPPb5o/AXOYqmAk9hfVvsxLZO+yEW4gZVDoB6A8hZeX19k9U73rypadyr5VJXiUouVjb35SCSnvivy2hVznj0W14Y4zfFurkg0vw2nqjmPHh1nUXe/qHweejIJY+um0q0fFuogLzc4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760539080; c=relaxed/simple; bh=7+N5SWsjXq7OvvmdSpCwATxCuNTmb8GbyyWKfzzTEsw=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=bzDrqh9vSStA3qpVDYWwk+INd+9sPsY27eTTYPrwPXbNLWwSHXaUbgZkdEGVjxWys3ZKS0Uxmbb5uagXaSxhqyHESZuZpvLZQK/e/jP2InCxyuNb7zkeqgoFdirC3KMm6dUhsbOKUH+DorvS6WzWRd1DvZc5iIVa/RYiBdPyDpQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org; spf=pass smtp.mailfrom=goodmis.org; arc=none smtp.client-ip=216.40.44.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=goodmis.org Received: from omf01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id B7E6A1A0172; Wed, 15 Oct 2025 14:37:53 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf01.hostedemail.com (Postfix) with ESMTPA id 45CEE6000F; Wed, 15 Oct 2025 14:37:49 +0000 (UTC) Date: Wed, 15 Oct 2025 10:37:57 -0400 From: Steven Rostedt To: Shuai Xue Cc: lukas@wunner.de, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, linux-trace-kernel@vger.kernel.org, helgaas@kernel.org, ilpo.jarvinen@linux.intel.com, mattc@purestorage.com, Jonathan.Cameron@huawei.com, bhelgaas@google.com, tony.luck@intel.com, bp@alien8.de, mhiramat@kernel.org, mathieu.desnoyers@efficios.com, oleg@redhat.com, naveen@kernel.org, davem@davemloft.net, anil.s.keshavamurthy@intel.com, mark.rutland@arm.com, peterz@infradead.org, tianruidong@linux.alibaba.com Subject: Re: [PATCH v12 1/3] PCI: trace: Add a generic RAS tracepoint for hotplug event Message-ID: <20251015103757.3d6f6cf7@gandalf.local.home> In-Reply-To: References: <20251014123159.57764-1-xueshuai@linux.alibaba.com> <20251014123159.57764-2-xueshuai@linux.alibaba.com> <20251014114029.4c59bb1a@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: fgnor9rjjpcii9s886naip5wzh8wghtr X-Rspamd-Server: rspamout05 X-Rspamd-Queue-Id: 45CEE6000F X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1/FTVt6E7UMjnFa3gZkkgvObqEHUxcIBNI= X-HE-Tag: 1760539069-379651 X-HE-Meta: U2FsdGVkX18owMZos1tJOGdmmegpdG3PengPH+NiaoyOZSXWF9nvdJ9nseJ2U0CCiy5P2nJ+7GHWsBkHlDQUpV+kst3thccxO61gYx4lN9Ewvz/zCp18HxJaM6JHuNZ+6t/A/QJFd2B6Vq1LkS2jFUKmnJ3dzwI5a6s2mQJ77mKF8+RoQD07QPbuZFuIcaIjXjJgAWiJwWoXDVx4JecuJ5ffNeIsT/mDnwzs3qqfyK69Al/K/5301vqjf35FEAWgvL0P/+S9mJgyuk5FcFwJ33/KiKG+gEhTWH6T/cshRj0rpoFYOuh1d9Th4NeW/+b8+2bFYsfRK1zhJoOax0yOB+XK99utHzLf On Wed, 15 Oct 2025 14:29:07 +0800 Shuai Xue wrote: > Hi, Steve, > > Thank you for your suggestion about passing the controller directly to > the trace event. I investigated this approach, but unfortunately we > cannot implement it due to structural limitations in the PCI hotplug > subsystem. Ah, that makes sense. Perhaps add a comment about this by the TRACE_EVENT() so that I don't recommend this again ;-) -- Steve