linux-kernel - Re: [PATCH] ftrace: Fix type of ftrace_graph_ent

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Message-ID: <20250412120712.67fc45d9@batman.local.home>
Date: Sat, 12 Apr 2025 12:07:12 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Ilya Leoshkevich <iii@...ux.ibm.com>
Cc: Masami Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Sven Schnelle <svens@...ux.ibm.com>,
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org, Heiko
 Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>, Alexander
 Gordeev <agordeev@...ux.ibm.com>
Subject: Re: [PATCH] ftrace: Fix type of ftrace_graph_ent_entry.depth

On Fri, 11 Apr 2025 19:21:41 +0200
Ilya Leoshkevich <iii@...ux.ibm.com> wrote:

>  
> -	F_printk("--> %ps (%lu)", (void *)__entry->func, __entry->depth)
> +	F_printk("--> %ps (%d)", (void *)__entry->func, __entry->depth)

depth should never be negative. Why did you use "%d" and not "%u" ?

-- Steve