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authorHeiko Carstens <heiko.carstens@de.ibm.com>2015-02-12 13:08:27 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2015-03-25 11:49:33 +0100
commit5a79859ae0f35d25c67a03e82bf0c80592f16a39 (patch)
tree37264d49f069812f19ced94e6ae171814fb7e498 /arch/s390/kernel/module.c
parent1833c9f647e9bda1cd24653ff8f9c207b5f5b911 (diff)
s390: remove 31 bit support
Remove the 31 bit support in order to reduce maintenance cost and effectively remove dead code. Since a couple of years there is no distribution left that comes with a 31 bit kernel. The 31 bit kernel also has been broken since more than a year before anybody noticed. In addition I added a removal warning to the kernel shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning message") which let everybody know about the plan to remove 31 bit code. We didn't get any response. Given that the last 31 bit only machine was introduced in 1999 let's remove the code. Anybody with 31 bit user space code can still use the compat mode. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/module.c')
-rw-r--r--arch/s390/kernel/module.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 2ca95862e336..0c1a679314dd 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -38,13 +38,8 @@
#define DEBUGP(fmt , ...)
#endif
-#ifndef CONFIG_64BIT
-#define PLT_ENTRY_SIZE 12
-#else /* CONFIG_64BIT */
#define PLT_ENTRY_SIZE 20
-#endif /* CONFIG_64BIT */
-#ifdef CONFIG_64BIT
void *module_alloc(unsigned long size)
{
if (PAGE_ALIGN(size) > MODULES_LEN)
@@ -53,7 +48,6 @@ void *module_alloc(unsigned long size)
GFP_KERNEL, PAGE_KERNEL, 0, NUMA_NO_NODE,
__builtin_return_address(0));
}
-#endif
void module_arch_freeing_init(struct module *mod)
{
@@ -323,17 +317,11 @@ static int apply_rela(Elf_Rela *rela, Elf_Addr base, Elf_Sym *symtab,
unsigned int *ip;
ip = me->module_core + me->arch.plt_offset +
info->plt_offset;
-#ifndef CONFIG_64BIT
- ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */
- ip[1] = 0x100607f1;
- ip[2] = val;
-#else /* CONFIG_64BIT */
ip[0] = 0x0d10e310; /* basr 1,0; lg 1,10(1); br 1 */
ip[1] = 0x100a0004;
ip[2] = 0x07f10000;
ip[3] = (unsigned int) (val >> 32);
ip[4] = (unsigned int) val;
-#endif /* CONFIG_64BIT */
info->plt_initialized = 1;
}
if (r_type == R_390_PLTOFF16 ||