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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4DB50CCD183 for ; Thu, 16 Oct 2025 21:12:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1XhG846dx3wUP7VIK3jHmWBz5V+euKd+Q9cGqdQ/lxY=; b=UBo3M7Pd5TfQPNfbRcxohpJQ5p t7J/9fUVoSgZfXNppotq8/wcCWdzSGWXcsr6oFSFh3KUj7qywi84PhAoe26q5KKN+Syj8LTd+eP2g /PPBZdgp0TbWel9XkzB5RJvYbDLAApgTRuiCoLgoucc4zvIErXEXE2+IBaSYK3g22xFoyVkLyQYzj XPZTZx6wCJMV5nInUggLSJMazUjIEbUDWb2hc5xSJzlru9wyh7PzC2BPHjIUFDZGtl4DCDAE8u/zi SZuCXLcVGb4j9ScQ/83qavv37Y5fFVI15mtCMBRdWGGBcwJjbwM2T0I0wu+dVr9pIGZiUG3uJGpk4 0N5iTgow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1v9VGM-00000005xtK-2Ev1; Thu, 16 Oct 2025 21:11:54 +0000 Received: from smtprelay0011.hostedemail.com ([216.40.44.11] helo=relay.hostedemail.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1v9VGJ-00000005xsO-2KN2 for linux-arm-kernel@lists.infradead.org; Thu, 16 Oct 2025 21:11:53 +0000 Received: from omf14.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 09BCB1A0421; Thu, 16 Oct 2025 21:11:47 +0000 (UTC) Received: from [HIDDEN] (Authenticated sender: rostedt@goodmis.org) by omf14.hostedemail.com (Postfix) with ESMTPA id 9489E34; Thu, 16 Oct 2025 21:11:44 +0000 (UTC) Date: Thu, 16 Oct 2025 17:11:55 -0400 From: Steven Rostedt To: Vincent Donnefort Cc: mhiramat@kernel.org, mathieu.desnoyers@efficios.com, linux-trace-kernel@vger.kernel.org, maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, jstultz@google.com, qperret@google.com, will@kernel.org, aneesh.kumar@kernel.org, kernel-team@android.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v7 14/28] tracing: Add a trace remote module for testing Message-ID: <20251016171155.0d871fc3@gandalf.local.home> In-Reply-To: <20251016170645.15416c8a@gandalf.local.home> References: <20251003133825.2068970-1-vdonnefort@google.com> <20251003133825.2068970-15-vdonnefort@google.com> <20251016170645.15416c8a@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: 33hbw6rr73jtdzwf8bckjrt5why11rej X-Rspamd-Server: rspamout01 X-Rspamd-Queue-Id: 9489E34 X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX1+mzqTR6rqbkd1NzU33NlFjpBTX4YYBDpY= X-HE-Tag: 1760649104-568230 X-HE-Meta: U2FsdGVkX18UOnRfo5/M586ViFyUv6tsn+gOTfw2M0Y9noR3McpUrJwpsabHTvpL2/5wzsDCaUL/d12GzAjhNNf2t3Mhh8WD1Kmh+O8qlcvBgcXVf/dnXrigVY66PAvWoi1nhL66TQ68n9IiyyDAd1Yy7C8R2HGrPEXZuNIGll4R/6JVAlCDDccqVf1UpNW9JDuwtJniNcqNR3SLoNhCyIPEGrDKQrN3u9E0qhCgI5ih58GR5+Hc4f3tG6AszSfxvRCkVDTjfUprjZDI6HBrwKxPjK/jMfpJxezYVYWqtgRGBWg4teEiBTVO+M+ApM8vuZHp8FfUOBjYmshmFZTZO3HF5KgmtxNNnnyv6IZZXWwe2EQmzloM3nL1370pPrbXF0lrENiGYgHtfF+Z96qFqQ== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251016_141151_674850_2D2DD991 X-CRM114-Status: GOOD ( 13.90 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 16 Oct 2025 17:06:45 -0400 Steven Rostedt wrote: > On Fri, 3 Oct 2025 14:38:11 +0100 > Vincent Donnefort wrote: > > > diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig > > index 918afcc1fcaf..52131d89993c 100644 > > --- a/kernel/trace/Kconfig > > +++ b/kernel/trace/Kconfig > > @@ -1244,4 +1244,12 @@ config TRACE_REMOTE > > config SIMPLE_RING_BUFFER > > bool > > > > +config TRACE_REMOTE_TEST > > + tristate "Test module for remote tracing" > > + select TRACE_REMOTE > > + select SIMPLE_RING_BUFFER > > + help > > + This trace remote includes a ring-buffer writer implementation using > > + "simple_ring_buffer". This is solely intending for testing. > > + > > Nit, this should go up a few places so that it's with the other "test module" selections. And when I tried to build it, I hit this: GEN .vmlinux.objs MODPOST Module.symvers ERROR: modpost: "simple_ring_buffer_reserve" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "simple_ring_buffer_commit" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "simple_ring_buffer_unload" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "trace_remote_free_buffer" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "trace_remote_alloc_buffer" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "simple_ring_buffer_init" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "trace_remote_register" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "simple_ring_buffer_reset" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "simple_ring_buffer_swap_reader_page" [kernel/trace/remote_test.ko] undefined! ERROR: modpost: "simple_ring_buffer_enable_tracing" [kernel/trace/remote_test.ko] undefined! WARNING: modpost: suppressed 1 unresolved symbol warnings because there were too many) make[3]: *** [/work/git/linux-trace.git/scripts/Makefile.modpost:147: Module.symvers] Error 1 make[2]: *** [/work/git/linux-trace.git/Makefile:1960: modpost] Error 2 make[1]: *** [/work/git/linux-trace.git/Makefile:248: __sub-make] Error 2 make[1]: Leaving directory '/work/build/nobackup/debiantesting-x86-64' make: *** [Makefile:248: __sub-make] Error 2 -- Steve