netdev - Re: [PATCH v8 13/17] x86/ftrace: enable dynamic ftrace without CONFIG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20240506142240.36c38d7f@gandalf.local.home>
Date: Mon, 6 May 2024 14:22:40 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Mike Rapoport <rppt@...nel.org>
Cc: linux-kernel@...r.kernel.org, Alexandre Ghiti <alexghiti@...osinc.com>,
 Andrew Morton <akpm@...ux-foundation.org>, Björn Töpel
 <bjorn@...nel.org>, Catalin Marinas <catalin.marinas@....com>, Christophe
 Leroy <christophe.leroy@...roup.eu>, "David S. Miller"
 <davem@...emloft.net>, Dinh Nguyen <dinguyen@...nel.org>, Donald Dutile
 <ddutile@...hat.com>, Eric Chanudet <echanude@...hat.com>, Heiko Carstens
 <hca@...ux.ibm.com>, Helge Deller <deller@....de>, Huacai Chen
 <chenhuacai@...nel.org>, Kent Overstreet <kent.overstreet@...ux.dev>, Liviu
 Dudau <liviu@...au.co.uk>, Luis Chamberlain <mcgrof@...nel.org>, Mark
 Rutland <mark.rutland@....com>, Masami Hiramatsu <mhiramat@...nel.org>,
 Michael Ellerman <mpe@...erman.id.au>, Nadav Amit <nadav.amit@...il.com>,
 Palmer Dabbelt <palmer@...belt.com>, Peter Zijlstra <peterz@...radead.org>,
 Philippe Mathieu-Daudé <philmd@...aro.org>, Rick
 Edgecombe <rick.p.edgecombe@...el.com>, Russell King
 <linux@...linux.org.uk>, Sam Ravnborg <sam@...nborg.org>, Song Liu
 <song@...nel.org>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, Thomas
 Gleixner <tglx@...utronix.de>, Will Deacon <will@...nel.org>,
 bpf@...r.kernel.org, linux-arch@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org,
 linux-mm@...ck.org, linux-modules@...r.kernel.org,
 linux-parisc@...r.kernel.org, linux-riscv@...ts.infradead.org,
 linux-s390@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
 linuxppc-dev@...ts.ozlabs.org, loongarch@...ts.linux.dev,
 netdev@...r.kernel.org, sparclinux@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH v8 13/17] x86/ftrace: enable dynamic ftrace without
 CONFIG_MODULES

On Sun,  5 May 2024 17:25:56 +0300
Mike Rapoport <rppt@...nel.org> wrote:

> From: "Mike Rapoport (IBM)" <rppt@...nel.org>
> 
> Dynamic ftrace must allocate memory for code and this was impossible
> without CONFIG_MODULES.
> 
> With execmem separated from the modules code, execmem_text_alloc() is
> available regardless of CONFIG_MODULES.
> 
> Remove dependency of dynamic ftrace on CONFIG_MODULES and make
> CONFIG_DYNAMIC_FTRACE select CONFIG_EXECMEM in Kconfig.
> 
> Signed-off-by: Mike Rapoport (IBM) <rppt@...nel.org>
> ---
>  arch/x86/Kconfig         |  1 +
>  arch/x86/kernel/ftrace.c | 10 ----------
>  2 files changed, 1 insertion(+), 10 deletions(-)

Reviewed-by: Steven Rostedt (Google) <rostedt@...dmis.org>

-- Steve