linux-kernel - Re: [PATCH] arm64: stacktrace: fix the usage of ftrace_graph_ret

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Message-Id: <172555675029.680759.8903911189573645433.b4-ty@arm.com>
Date: Thu,  5 Sep 2024 18:19:20 +0100
From: Catalin Marinas <catalin.marinas@....com>
To: Will Deacon <will@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	"Madhavan T. Venkataraman" <madvenka@...ux.microsoft.com>,
	Kalesh Singh <kaleshsingh@...gle.com>,
	chenqiwu <qiwuchen55@...il.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	rostedt@...dmis.org,
	Puranjay Mohan <puranjay@...nel.org>
Subject: Re: [PATCH] arm64: stacktrace: fix the usage of ftrace_graph_ret_addr()

On Tue, 18 Jun 2024 16:23:42 +0000, Puranjay Mohan wrote:
> ftrace_graph_ret_addr() takes an 'idx' integer pointer that is used to
> optimize the stack unwinding process. arm64 currently passes `NULL` for
> this parameter which stops it from utilizing these optimizations.
> 
> Further, the current code for ftrace_graph_ret_addr() will just return
> the passed in return address if it is NULL which will break this usage.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: stacktrace: fix the usage of ftrace_graph_ret_addr()
      https://git.kernel.org/arm64/c/c060f93253ca

-- 
Catalin