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s390: add 31 bit warning message

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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2014-04-08 15:23:52 +02:00 committed by Martin Schwidefsky
parent a1977d128a
commit a960062e58
1 changed files with 32 additions and 0 deletions
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32
arch/s390/kernel/setup.c
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@ -1027,3 +1027,35 @@ void __init setup_arch(char **cmdline_p)
/* Setup zfcpdump support */ /* Setup zfcpdump support */
setup_zfcpdump(); setup_zfcpdump();
} }
#ifdef CONFIG_32BIT
static int no_removal_warning __initdata;
static int __init parse_no_removal_warning(char *str)
{
no_removal_warning = 1;
return 0;
}
__setup("no_removal_warning", parse_no_removal_warning);
static int __init removal_warning(void)
{
if (no_removal_warning)
return 0;
printk(KERN_ALERT "\n\n");
printk(KERN_CONT "Warning - you are using a 31 bit kernel!\n\n");
printk(KERN_CONT "We plan to remove 31 bit kernel support from the kernel sources in March 2015.\n");
printk(KERN_CONT "Currently we assume that nobody is using the 31 bit kernel on old 31 bit\n");
printk(KERN_CONT "hardware anymore. If you think that the code should not be removed and also\n");
printk(KERN_CONT "future versions of the Linux kernel should be able to run in 31 bit mode\n");
printk(KERN_CONT "please let us know. Please write to:\n");
printk(KERN_CONT "linux390@de.ibm.com (mail address) and/or\n");
printk(KERN_CONT "linux-s390@vger.kernel.org (mailing list).\n\n");
printk(KERN_CONT "Thank you!\n\n");
printk(KERN_CONT "If this kernel runs on a 64 bit machine you may consider using a 64 bit kernel.\n");
printk(KERN_CONT "This message can be disabled with the \"no_removal_warning\" kernel parameter.\n");
schedule_timeout_uninterruptible(300 * HZ);
return 0;
}
early_initcall(removal_warning);
#endif