From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 45C88306B33; Wed, 15 Oct 2025 20:39:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760560756; cv=none; b=gLmA/SFuU2NpcxNT9bpfbMZcdijbqZNuCAxmCqjjvg3e1k8mKKmJBD/93SeBGem1zyi/VFTSQv6y1XCQfM9T+1v7uwdXV+yvp1P8zMfHSFeeEW/OVPJ4glshFnYWR5c9aNVGVcflMTwowdSuCBNBMV8hSFgFtxm4sy/bwS6Dcgc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760560756; c=relaxed/simple; bh=Vzi5WNSJgKyG4HPrKMsBmHSReHMUffHQWeN3x0XJSkM=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=OxeuBMTNl76dEWEuFbYluQF2jIqW+M0qEMNu2EmttyjQXT9eyBGe2LZqD7brsZZfY1ymBOt8I+TllE3W81722g6Qez8sO0TC2eNthowQgUUZbK5NcOoWhoKKPXPwEFBmZmeEZn9keOKm0Qwrzvq8cwGPCxlT14lUW6sR7OFxo8k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=SJP43uA8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="SJP43uA8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFB3CC116D0; Wed, 15 Oct 2025 20:39:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760560755; bh=Vzi5WNSJgKyG4HPrKMsBmHSReHMUffHQWeN3x0XJSkM=; h=Date:From:To:Cc:Subject:References:From; b=SJP43uA8KY7awA0Ic4cbeVSwwDa2b+eShtL4Cx3Dhb5kjo3yZ9XQEPeuPaHeBpPR4 hZ9Nut9ta0nKrRfPba9vZrLfciZga6pz/oDICvGfQXsUefBjO8bSpIBbwoAHlttqF7 hLhyPHiLAHKziXdYmI1ZSHibhmGCgBnZj9hSVUfgo3WPr437ZC/2vCIYdKvKmm9zdk uUdi/i6kZgx7wFPUFV3F6wep2NDJ7mdunwAw3d1kZ9Y1mIYnVl0geErqgpruUR/AaX NpEy/h90gHwDHy9d4JW0ztzYy6Fg6DQKBoZMwkPG1VJ9fluOyRM4lsNY55VMH5XHfL lYPWd5lQ4Dvkg== Received: from rostedt by gandalf with local (Exim 4.98.2) (envelope-from ) id 1v98HM-000000015wO-2v8Y; Wed, 15 Oct 2025 16:39:24 -0400 Message-ID: <20251015203924.555052453@kernel.org> User-Agent: quilt/0.68 Date: Wed, 15 Oct 2025 16:38:45 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Arnd Bergmann , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Nick Desaulniers , Catalin Marinas , Linus Torvalds , Randy Dunlap , Stephen Rothwell Subject: [PATCH v9 3/4] tracepoint: Do not warn for unused event that is exported References: <20251015203842.618059565@kernel.org> Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 From: Steven Rostedt There are a few generic events that may only be used by modules. They are defined and then set with EXPORT_TRACEPOINT*(). Mark events that are exported as being used, even though they still waste memory in the kernel proper. Signed-off-by: Steven Rostedt (Google) --- include/linux/tracepoint.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 1e53d3626c78..8a56f3278b1b 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -227,8 +227,8 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p) * defined tracepoints are used. It is discarded after the build. */ # define TRACEPOINT_CHECK(name) \ - static const char __used __section("__tracepoint_check") __trace_check[] = \ - #name; + static const char __used __section("__tracepoint_check") \ + __trace_check_##name[] = #name; /* * Make sure the alignment of the structure in the __tracepoints section will @@ -382,10 +382,12 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p) __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args)); #define EXPORT_TRACEPOINT_SYMBOL_GPL(name) \ + TRACEPOINT_CHECK(name) \ EXPORT_SYMBOL_GPL(__tracepoint_##name); \ EXPORT_SYMBOL_GPL(__traceiter_##name); \ EXPORT_STATIC_CALL_GPL(tp_func_##name) #define EXPORT_TRACEPOINT_SYMBOL(name) \ + TRACEPOINT_CHECK(name) \ EXPORT_SYMBOL(__tracepoint_##name); \ EXPORT_SYMBOL(__traceiter_##name); \ EXPORT_STATIC_CALL(tp_func_##name) -- 2.51.0