From patchwork Wed Nov 8 14:26:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Masami Hiramatsu (Google)" X-Patchwork-Id: 13450157 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 9236010A15; Wed, 8 Nov 2023 14:26:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EjOww+q2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DC408C433C7; Wed, 8 Nov 2023 14:26:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1699453596; bh=kYKqzLjHb+tdl32thOrnxRAjLrF2/pPf6UROFm/9erg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EjOww+q2e4icdTh7kOnha5aJCQ+xmC3qpqj6NZLwtBh/N2dKJnXoj3m27YUzqjsat 0h63cLvuQzaokadgMJJEDZyj7W/QT2WH9vUA4Lf1kmCkROHCR72QC8bEnxQu66UOzq dX90q6lZxHAppOqGgjB8zaTT6Jcfc7SrOXAMMxW7e5O0FiRxEsqGV60fGwh9MmGaxm eRk+wCI00dxm7HjI1iWoQBBzkMD7K02x1dUzm52tWL8uU4gyciQDoSNlS5DS2LwgcK SE3IwjIMkWAJpyA4HFXe6BloMWhk0htdlu9K9vbZlkH0j2whS1OWR1aUK7x/7xWUne QPcwEarMWIpeA== From: "Masami Hiramatsu (Google)" To: Alexei Starovoitov , Steven Rostedt , Florent Revest Cc: linux-trace-kernel@vger.kernel.org, LKML , Martin KaFai Lau , bpf , Sven Schnelle , Alexei Starovoitov , Jiri Olsa , Arnaldo Carvalho de Melo , Daniel Borkmann , Alan Maguire , Mark Rutland , Peter Zijlstra , Thomas Gleixner , Guo Ren Subject: [RFC PATCH v2 11/31] ftrace: Allow ftrace startup flags exist without dynamic ftrace Date: Wed, 8 Nov 2023 23:26:30 +0900 Message-Id: <169945359010.55307.16221453484650800734.stgit@devnote2> X-Mailer: git-send-email 2.34.1 In-Reply-To: <169945345785.55307.5003201137843449313.stgit@devnote2> References: <169945345785.55307.5003201137843449313.stgit@devnote2> User-Agent: StGit/0.19 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-State: RFC From: Steven Rostedt (VMware) Some of the flags for ftrace_startup() may be exposed even when CONFIG_DYNAMIC_FTRACE is not configured in. This is fine as the difference between dynamic ftrace and static ftrace is done within the internals of ftrace itself. No need to have use cases fail to compile because dynamic ftrace is disabled. This change is needed to move some of the logic of what is passed to ftrace_startup() out of the parameters of ftrace_startup(). Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Masami Hiramatsu (Google) --- include/linux/ftrace.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 80ec01e765bd..84e06ad1b121 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -537,6 +537,15 @@ static inline void stack_tracer_disable(void) { } static inline void stack_tracer_enable(void) { } #endif +enum { + FTRACE_UPDATE_CALLS = (1 << 0), + FTRACE_DISABLE_CALLS = (1 << 1), + FTRACE_UPDATE_TRACE_FUNC = (1 << 2), + FTRACE_START_FUNC_RET = (1 << 3), + FTRACE_STOP_FUNC_RET = (1 << 4), + FTRACE_MAY_SLEEP = (1 << 5), +}; + #ifdef CONFIG_DYNAMIC_FTRACE void ftrace_arch_code_modify_prepare(void); @@ -631,15 +640,6 @@ void ftrace_set_global_notrace(unsigned char *buf, int len, int reset); void ftrace_free_filter(struct ftrace_ops *ops); void ftrace_ops_set_global_filter(struct ftrace_ops *ops); -enum { - FTRACE_UPDATE_CALLS = (1 << 0), - FTRACE_DISABLE_CALLS = (1 << 1), - FTRACE_UPDATE_TRACE_FUNC = (1 << 2), - FTRACE_START_FUNC_RET = (1 << 3), - FTRACE_STOP_FUNC_RET = (1 << 4), - FTRACE_MAY_SLEEP = (1 << 5), -}; - /* * The FTRACE_UPDATE_* enum is used to pass information back * from the ftrace_update_record() and ftrace_test_record()