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Message-ID: <20090115221135.GA10283@elte.hu>
Date:	Thu, 15 Jan 2009 23:11:35 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Roland McGrath <roland@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] trailing whitespace in kernel/ptrace.c


* Roland McGrath <roland@...hat.com> wrote:

> These bug me every time I want to touch ptrace.c, nix them.
> 
> Signed-off-by: Roland McGrath <roland@...hat.com>
> ---
>  kernel/ptrace.c |    6 +++---
>  1 files changed, 3 insertions(+), 3 deletions(-)

btw., here's the checkpatch output from that file:

------------------>

WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
#26: FILE: ptrace.c:26:
+#include <asm/uaccess.h>

ERROR: trailing whitespace
#51: FILE: ptrace.c:51:
+ $

WARNING: braces {} are not necessary for any arm of this statement
#63: FILE: ptrace.c:63:
+		if (child->signal->flags & SIGNAL_STOP_STOPPED) {
[...]
+		} else {
[...]

CHECK: memory barrier without comment
#157: FILE: ptrace.c:157:
+	smp_rmb();

ERROR: return is not a function, parentheses are not required
#172: FILE: ptrace.c:172:
+	return (!err ? true : false);

WARNING: line over 80 characters
#266: FILE: ptrace.c:266:
+int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len)

ERROR: trailing whitespace
#286: FILE: ptrace.c:286:
+^I^Ilen -= retval;^I^I^I$

WARNING: line over 80 characters
#291: FILE: ptrace.c:291:
+int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len)

ERROR: trailing whitespace
#311: FILE: ptrace.c:311:
+^I^Ilen -= retval;^I^I^I$

ERROR: else should follow close brace '}'
#425: FILE: ptrace.c:425:
+	}
+	else

WARNING: line over 80 characters
#455: FILE: ptrace.c:455:
+		ret = put_user(child->ptrace_message, (unsigned long __user *) data);

total: 5 errors, 6 warnings, 1 checks, 741 lines checked

kernel/ptrace.c has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see
CHECKPATCH in MAINTAINERS.

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