From: Linus Walleij <linus.walleij@linaro.org>
To: Richard Weinberger <richard@nod.at>
Cc: linux@armlinux.org.uk, rostedt@goodmis.org, mhiramat@kernel.org,
mark.rutland@arm.com, ardb@kernel.org, ebiggers@kernel.org,
nathan@kernel.org, dave@vasilevsky.ca, ruanjinjie@huawei.com,
liuyuntao12@huawei.com, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
linux-trace-kernel@vger.kernel.org,
Donglin Peng <pengdonglin@sangfor.com.cn>
Subject: Re: [PATCH] ARM: ftrace: Implement HAVE_FUNCTION_GRAPH_FREGS
Date: Wed, 20 Aug 2025 09:26:34 +0200 [thread overview]
Message-ID: <CACRpkdbwUU5TmeVhcSAZ_ZaFa5nGVtyFBjNXBwNMC5y38heELA@mail.gmail.com> (raw)
In-Reply-To: <20250818103931.1100084-1-richard@nod.at>
Unsolicited thread intervention:
Richard if you use ftrace on ARM a lot, have you looked into
patchable function entry as described by Mark Rutland for
ARM64 in this talk?
https://www.youtube.com/watch?v=p9cqUTF4I0w
(Described at 19:12 into the talk.)
I think it would be neat if we could do this on ARM32 as well
but I do not know how hard it would be.
Yours,
Linus Walleij
prev parent reply other threads:[~2025-08-20 7:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-18 10:39 [PATCH] ARM: ftrace: Implement HAVE_FUNCTION_GRAPH_FREGS Richard Weinberger
2025-08-20 7:20 ` Linus Walleij
2025-08-20 8:11 ` Richard Weinberger
2025-08-20 8:30 ` Richard Weinberger
2025-08-20 7:26 ` Linus Walleij [this message]
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