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From: Kees Cook <>
To: Jason Yan <>
Cc:,,,,, Chao Yu <>
Subject: Re: [PATCH] f2fs: Eliminate usage of uninitialized_var() macro
Date: Mon, 15 Jun 2020 13:11:38 -0700	[thread overview]
Message-ID: <202006151311.138CD1D@keescook> (raw)
In-Reply-To: <>

On Mon, Jun 15, 2020 at 04:51:32PM +0800, 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 <>
> ---
>  v2: Directly remove this variable.

Thanks! I've applied this to my uninitialized_var() macro removal

Kees Cook

  parent reply	other threads:[~2020-06-15 20:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-15  8:51 Jason Yan
2020-06-15  9:04 ` Chao Yu
2020-06-15 20:11 ` Kees Cook [this message]
  -- strict thread matches above, loose matches on Subject: below --
2020-06-15  4:02 Jason Yan

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