Commit a960062e authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky

s390: add 31 bit warning message

Signed-off-by: default avatarHeiko Carstens <>
Signed-off-by: default avatarMartin Schwidefsky <>
parent a1977d12
......@@ -1027,3 +1027,35 @@ void __init setup_arch(char **cmdline_p)
/* Setup zfcpdump support */
#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 " (mail address) and/or\n");
printk(KERN_CONT " (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;
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment