linux-hardening - Re: [PATCH] powerpc: Remove initialisation of readpos

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Message-ID: <202310241449.7E91697@keescook>
Date: Tue, 24 Oct 2023 14:50:07 -0700
From: Kees Cook <keescook@...omium.org>
To: "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc: Steven Rostedt <rostedt@...dmis.org>, Christoph Hellwig <hch@....de>,
	Justin Stitt <justinstitt@...gle.com>,
	linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	Kent Overstreet <kent.overstreet@...ux.dev>,
	Petr Mladek <pmladek@...e.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Sergey Senozhatsky <senozhatsky@...omium.org>,
	Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [PATCH] powerpc: Remove initialisation of readpos

On Tue, Oct 24, 2023 at 03:55:59PM +0100, Matthew Wilcox (Oracle) wrote:
> While powerpc doesn't use the seq_buf readpos, it did explicitly
> initialise it for no good reason.
> 
> Fixes: d0ed46b60396 ("tracing: Move readpos from seq_buf to trace_seq")
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>

Yeah, looks right -- it'd even be right if the member still existed. :)

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook