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 BF39B2C08CE; Mon, 25 Aug 2025 23:13:41 +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=1756163621; cv=none; b=KdzenONuc2b/FNsPBaCBjMdKw7n/3b5OLqwPXT78cDO8pUUa1e0j2FrxJ8JQPMseYkDA9YJjj0a+JsbsPU5iChRRDCPH+cZF/iptIQ2MIvvY2Q2kxqOK01GHfqcpVCwNeoKEiNVUbOwnRqeDGqjz3jQ54mVE9zUWFDU3CXURHqc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756163621; c=relaxed/simple; bh=6peswoOhdw7dXI0cwkW9pPp7bgdjqqT10/tl3qs06UY=; h=Message-ID:Date:From:To:Cc:Subject:References:MIME-Version: Content-Type; b=rapZppVsjRE+1cD0N7tyZ0qZyFDYPimprXR83O+hpznVejwmqD4kGEe6YTApHym23YoIf7yjzpKe6f93EnolLit9gTbhUnwAS9H6WnHklvLGxUISG9L7y0rD1qbHB8xEqxyrWJlne/1Pd0bqr3JDK8hIe4aykHGGm00JloR0IZ4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=l/aqtjNJ; 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="l/aqtjNJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 66D76C16AAE; Mon, 25 Aug 2025 23:13:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756163621; bh=6peswoOhdw7dXI0cwkW9pPp7bgdjqqT10/tl3qs06UY=; h=Date:From:To:Cc:Subject:References:From; b=l/aqtjNJ7X/5+QTZHxh8H7Kt4eB1ImWxN4Cyyqu4M8vwI01xzIDroVctFkUIXbsSD N1m87czBgj1PZLQBGn/3HHXKzViJBGk0VpV8goz9xkcHc32rScMNaeovtfXyIlN17p nRTg39qvBuV1wtgZ2T+JCNfNMkNB2uvY7WpGMSudsBqrU8mxwS6ING0nV+w75PKVlz E+3DYemOI4KrsRoLX6GlqvRFqvH5H9ch07jGELOiBLJhEo3RdDRC7od67Rf2apXRW+ ovDeS0HXzDsxNnTlFJSp9WacZ7xmtfHY8oVh0UvaurOp7MOWPtngBsV/EkqW2oO0cW 4DkduZ1VHW2Zw== Received: from rostedt by gandalf with local (Exim 4.98.2) (envelope-from ) id 1uqgNw-00000002tGj-0NLr; Mon, 25 Aug 2025 19:13:56 -0400 Message-ID: <20250825231355.939259124@kernel.org> User-Agent: quilt/0.68 Date: Mon, 25 Aug 2025 19:13:04 -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 Subject: [PATCH v7 3/3] tracepoint: Do not warn for unused event that is exported References: <20250825231301.433412523@kernel.org> 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=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 71d2e085c49e..ec6827d00d79 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -223,8 +223,8 @@ static inline struct tracepoint *tracepoint_ptr_deref(tracepoint_ptr_t *p) #ifdef CONFIG_TRACEPOINT_WARN_ON_UNUSED # 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; #else # define TRACEPOINT_CHECK(tname) #endif @@ -381,10 +381,12 @@ 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) -- 2.50.1