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Date: Mon, 15 Jun 2020 17:04:36 +0800
From: Chao Yu <>
To: Jason Yan <>, <>, <>,
	<>, <>
CC: <>, Kees Cook <>
Subject: Re: [PATCH] f2fs: Eliminate usage of uninitialized_var() macro

On 2020/6/15 16:51, Jason Yan wrote:
> This is an effort to eliminate the uninitialized_var() macro[1].
> The use of this macro is the wrong solution because it forces off ANY
> analysis by the compiler for a given variable. It even masks "unused
> variable" warnings.
> Quoted from Linus[2]:
> "It's a horrible thing to use, in that it adds extra cruft to the
> source code, and then shuts up a compiler warning (even the _reliable_
> warnings from gcc)."
> Fix it by remove this variable since it is not needed at all.
> [1]
> [2]
> Cc: Kees Cook <>
> Suggested-by: Chao Yu <>
> Signed-off-by: Jason Yan <>

Reviewed-by: Chao Yu <>


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