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Revision d6957f3396d0b1ee54d183524550d791054b5ebe authored by Helge Deller on 15 August 2017, 09:34:19 UTC, committed by Helge Deller on 16 August 2017, 19:09:45 UTC 
printk-formats.txt: Better describe the difference between %pS and %pF
 
Sometimes people seems unclear when to use the %pS or %pF printk format.
For example, see commit 51d96dc2e2dc ("random: fix warning message on ia64
and parisc") which fixed such a wrong format string.

The documentation should be more clear about the difference.

Signed-off-by: Helge Deller <deller@gmx.de>
[pmladek@suse.com: Restructure the entire section]
Signed-off-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
1 parent 4098116
Raw File
uaccess.c 
/*
 * Copyright 2010 Tilera Corporation. All Rights Reserved.
 *
 *   This program is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU General Public License
 *   as published by the Free Software Foundation, version 2.
 *
 *   This program is distributed in the hope that it will be useful, but
 *   WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 *   NON INFRINGEMENT.  See the GNU General Public License for
 *   more details.
 */

#include <linux/uaccess.h>
#include <linux/module.h>

int __range_ok(unsigned long addr, unsigned long size)
{
	unsigned long limit = current_thread_info()->addr_limit.seg;
	return !((addr < limit && size <= limit - addr) ||
		 is_arch_mappable_range(addr, size));
}
EXPORT_SYMBOL(__range_ok);
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