From nobody Mon Oct 6 08:22:06 2025 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 2CB6D22FF37; Wed, 23 Jul 2025 19:42:10 +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=1753299731; cv=none; b=jr9ZVTvQWZOlpCR+rCiM8up2nx03EY2NuoqkfAZDs6nKDotJTxmVSArQusD/MvnxFhKsaGchk6EWugJ6D1OK85wzZmjopTpnlGFZKhvQvAF8yDj15drbdErNZ7JSppSz9RBzlRDzjBC5RRwNV37Y1pCkzXKD7asaRPlx4RJ9Jk0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753299731; c=relaxed/simple; bh=8DgMDOVyi1UQysuCYqsGqAUmquXWykBR0aOhtrr7Gzk=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=JVfnOKYIgxBMXvOFPfM+7WJB+RkewHKombRcALffCZWKRean+GcdHTbvMe5eDhiruaPRLv/X6hBkLdbE3qXnMi/NYlAu0F/SjfCFjE9Cv+bQY0sTv7+Qm6qWWLvLLtVx986mppAYfx3R/wsp5qTsHKi4akpy0WPzjgpFlmkyTzc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=X2r+F18Z; 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="X2r+F18Z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BE1AAC4CEF7; Wed, 23 Jul 2025 19:42:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753299730; bh=8DgMDOVyi1UQysuCYqsGqAUmquXWykBR0aOhtrr7Gzk=; h=Date:From:To:Cc:Subject:References:From; b=X2r+F18Z9m3yHS1D9k7y30vYa3RdkRc06p+51Uoj3CMJNgZbJPZMQ1FghD3Z3311G KITcfLQS6LGJ+Bw0BbdqiAPfqPjFHIJkAWFv6yPOzaMR7B+jVUYj2a1dF72t82ZPLt 4dh6QM3Rr5Gk4FAjgHoGTd5zf4u52aLdOZRoOC1tU9BZQ6hY3CipIbgakWI+BXncw6 dEo164H1Cr1c0QmoL2r5pVfPLaJR8pGDT5lnuEQI6CZhF4YUXOP/OhlpNjaeAI3e3v 3jWYEUe3ZgxbUmTsV5Gg6eHZ2U1vYlgYRXKM2KAmCkKtw2GXZ/yGbQD5hcRu1CMtcJ 83z3B1cwmItPA== Received: from rostedt by gandalf with local (Exim 4.98.2) (envelope-from ) id 1uefLw-00000000QZW-1413; Wed, 23 Jul 2025 15:42:12 -0400 Message-ID: <20250723194212.103057866@kernel.org> User-Agent: quilt/0.68 Date: Wed, 23 Jul 2025 15:41:44 -0400 From: Steven Rostedt To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, llvm@lists.linux.dev Cc: Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Arnd Bergmann , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Nick Desaulniers , Catalin Marinas , Linus Torvalds Subject: [PATCH v4 3/4] tracepoint: Do not warn for unused event that is exported References: <20250723194141.617125835@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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 | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 2b96c7e94c52..8026a0659580 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -223,7 +223,8 @@ static inline struct tracepoint *tracepoint_ptr_deref(t= racepoint_ptr_t *p) =20 #ifdef CONFIG_TRACEPOINT_VERIFY_USED # define TRACEPOINT_CHECK(name) \ - static void __used __section("__tracepoint_check") *__trace_check =3D \ + static void __used __section("__tracepoint_check") * \ + __trace_check_##name =3D \ &__tracepoint_##name; #else # define TRACEPOINT_CHECK(name) @@ -381,10 +382,12 @@ static inline struct tracepoint *tracepoint_ptr_deref= (tracepoint_ptr_t *p) __DEFINE_TRACE_EXT(_name, NULL, PARAMS(_proto), PARAMS(_args)); =20 #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) --=20 2.47.2