Merge tag 'v3.15' into next

Linux 3.15

1 files changed, 32 insertions, 17 deletions

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 09e2f468f48..88d1ca81e2d 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -47,7 +47,6 @@
 #include <linux/compat.h>
 
 #include <asm/ipl.h>
-#include <asm/uaccess.h>
 #include <asm/facility.h>
 #include <asm/smp.h>
 #include <asm/mmu_context.h>
@@ -65,12 +64,6 @@
 #include "entry.h"
 
 /*
- * User copy operations.
- */
-struct uaccess_ops uaccess;
-EXPORT_SYMBOL(uaccess);
-
-/*
  * Machine setup..
  */
 unsigned int console_mode = 0;
@@ -294,14 +287,6 @@ static int __init parse_vmalloc(char *arg)
 }
 early_param("vmalloc", parse_vmalloc);
 
-static int __init early_parse_user_mode(char *p)
-{
-	if (!p || strcmp(p, "primary") == 0)
-		return 0;
-	return 1;
-}
-early_param("user_mode", early_parse_user_mode);
-
 void *restart_stack __attribute__((__section__(".data")));
 
 static void __init setup_lowcore(void)
@@ -1009,8 +994,6 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data = (unsigned long) &_edata;
 	init_mm.brk = (unsigned long) &_end;
 
-	uaccess = MACHINE_HAS_MVCOS ? uaccess_mvcos : uaccess_pt;
-
 	parse_early_param();
 	detect_memory_layout(memory_chunk, memory_end);
 	os_info_init();
@@ -1044,3 +1027,35 @@ void __init setup_arch(char **cmdline_p)
 	/* Setup zfcpdump support */
 	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