linux-kernel - Re: [PATCH] x86: Get rid of 'dubious one-bit signed bitfield' sprase warning

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Message-ID: <CALCETrXKg9rSqi2RTQTa4Fpze0cP76HXD9BQor4ohW587ey3XA@mail.gmail.com>
Date:	Thu, 12 Jan 2012 07:53:49 -0800
From:	Andy Lutomirski <luto@...capital.net>
To:	Anton Vorontsov <cbouatmailru@...il.com>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Dan Carpenter <error27@...il.com>
Subject: Re: [PATCH] x86: Get rid of 'dubious one-bit signed bitfield' sprase warning

On Tue, Jan 10, 2012 at 5:11 PM, Anton Vorontsov <cbouatmailru@...il.com> wrote:
> This very noisy sparse warning appears on almost every file in the
> kernel:
>
>  CHECK   init/main.c
> arch/x86/include/asm/thread_info.h:43:55: error: dubious one-bit signed bitfield
> arch/x86/include/asm/thread_info.h:44:46: error: dubious one-bit signed bitfield
>
> This patch changes sig_on_uaccess_error and uaccess_err flags to unsigned
> type and thus fixes the warning.
>
> Signed-off-by: Anton Vorontsov <cbouatmailru@...il.com>
> ---

Acked-by: Andy Lutomirski <luto@....edu>

This structure isn't used by userspace (or not usefully, anyway --
it's not at all stable across releases).

--Andy
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