diff options
Diffstat (limited to 'arch/s390/mm/vmem.c')
| -rw-r--r-- | arch/s390/mm/vmem.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 41c714e21292..665b8228afeb 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -661,7 +661,6 @@ void __init vmem_map_init(void) { __set_memory_rox(_stext, _etext); __set_memory_ro(_etext, __end_rodata); - __set_memory_rox(_sinittext, _einittext); __set_memory_rox(__stext_amode31, __etext_amode31); /* * If the BEAR-enhancement facility is not installed the first @@ -670,16 +669,8 @@ void __init vmem_map_init(void) */ if (!static_key_enabled(&cpu_has_bear)) set_memory_x(0, 1); - if (debug_pagealloc_enabled()) { - /* - * Use RELOC_HIDE() as long as __va(0) translates to NULL, - * since performing pointer arithmetic on a NULL pointer - * has undefined behavior and generates compiler warnings. - */ - __set_memory_4k(__va(0), RELOC_HIDE(__va(0), ident_map_size)); - } - if (MACHINE_HAS_NX) - system_ctl_set_bit(0, CR0_INSTRUCTION_EXEC_PROTECTION_BIT); + if (debug_pagealloc_enabled()) + __set_memory_4k(__va(0), __va(0) + ident_map_size); pr_info("Write protected kernel read-only data: %luk\n", (unsigned long)(__end_rodata - _stext) >> 10); } |