[0/2] function_graph: ftrace_graph_ret_addr(); there can be only one!

Message ID	20240611030934.162955582@goodmis.org (mailing list archive)
Headers	show Return-Path: <linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org> Message-ID: <20240611030934.162955582@goodmis.org> User-Agent: quilt/0.68 Date: Mon, 10 Jun 2024 23:09:34 -0400 From: Steven Rostedt <rostedt@goodmis.org> To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org Cc: Masami Hiramatsu <mhiramat@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Mathieu Desnoyers <mathieu.desnoyers@efficios.com>, Jonathan Corbet <corbet@lwn.net>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Guo Ren <guoren@kernel.org>, Huacai Chen <chenhuacai@kernel.org>, WANG Xuerui <kernel@xen0n.name>, Michael Ellerman <mpe@ellerman.id.au>, Nicholas Piggin <npiggin@gmail.com>, Christophe Leroy <christophe.leroy@csgroup.eu>, "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Alexander Gordeev <agordeev@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Sven Schnelle <svens@linux.ibm.com>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Dave Hansen <dave.hansen@linux.intel.com>, x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com> Subject: [PATCH 0/2] function_graph: ftrace_graph_ret_addr(); there can be only one! Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org
Series	function_graph: ftrace_graph_ret_addr(); there can be only one! \| expand [0/2] function_graph: ftrace_graph_ret_addr(); there can be only one! [1/2] function_graph: Fix up ftrace_graph_ret_addr() [2/2] function_graph: Everyone uses HAVE_FUNCTION_GRAPH_RET_ADDR_PTR, remove it

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20240611030934.162955582@goodmis.org (mailing list archive)

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Message-ID: <20240611030934.162955582@goodmis.org>
User-Agent: quilt/0.68
Date: Mon, 10 Jun 2024 23:09:34 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org,
 linux-trace-kernel@vger.kernel.org,
 linux-doc@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org,
 linux-csky@vger.kernel.org,
 loongarch@lists.linux.dev,
 linuxppc-dev@lists.ozlabs.org,
 linux-riscv@lists.infradead.org,
 linux-s390@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
 Mark Rutland <mark.rutland@arm.com>,
 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
 Jonathan Corbet <corbet@lwn.net>,
 Catalin Marinas <catalin.marinas@arm.com>,
 Will Deacon <will@kernel.org>,
 Guo Ren <guoren@kernel.org>,
 Huacai Chen <chenhuacai@kernel.org>,
 WANG Xuerui <kernel@xen0n.name>,
 Michael Ellerman <mpe@ellerman.id.au>,
 Nicholas Piggin <npiggin@gmail.com>,
 Christophe Leroy <christophe.leroy@csgroup.eu>,
 "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
 Paul Walmsley <paul.walmsley@sifive.com>,
 Palmer Dabbelt <palmer@dabbelt.com>,
 Albert Ou <aou@eecs.berkeley.edu>,
 Heiko Carstens <hca@linux.ibm.com>,
 Vasily Gorbik <gor@linux.ibm.com>,
 Alexander Gordeev <agordeev@linux.ibm.com>,
 Christian Borntraeger <borntraeger@linux.ibm.com>,
 Sven Schnelle <svens@linux.ibm.com>,
 Thomas Gleixner <tglx@linutronix.de>,
 Ingo Molnar <mingo@redhat.com>,
 Borislav Petkov <bp@alien8.de>,
 Dave Hansen <dave.hansen@linux.intel.com>,
 x86@kernel.org,
 "H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH 0/2] function_graph: ftrace_graph_ret_addr();
 there can be only one!
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Series

function_graph: ftrace_graph_ret_addr(); there can be only one! | expand

Message

Steven Rostedt June 11, 2024, 3:09 a.m. UTC

I noticed a slight bug in ftrace_graph_ret_addr() for when
HAVE_FUNCTION_GRAPH_RET_ADDR_PTR was defined and fixed it up.
I then noticed it was buggy when not defined. Looking for an
architecture that did not have it defined, I couldn't find any.
So I removed it.

Steven Rostedt (Google) (2):
      function_graph: Fix up ftrace_graph_ret_addr()
      function_graph: Everyone uses HAVE_FUNCTION_GRAPH_RET_ADDR_PTR, remove it

----
 Documentation/trace/ftrace-design.rst | 12 -------
 arch/arm64/include/asm/ftrace.h       | 11 -------
 arch/csky/include/asm/ftrace.h        |  2 --
 arch/loongarch/include/asm/ftrace.h   |  1 -
 arch/powerpc/include/asm/ftrace.h     |  2 --
 arch/riscv/include/asm/ftrace.h       |  1 -
 arch/s390/include/asm/ftrace.h        |  1 -
 arch/x86/include/asm/ftrace.h         |  2 --
 include/linux/ftrace.h                |  2 --
 kernel/trace/fgraph.c                 | 61 ++++++++++++-----------------------
 10 files changed, 20 insertions(+), 75 deletions(-)