--- linux-3.10/drivers/input/misc/wistron_btns.c.orig 2013-11-16 09:05:55.612742472 +0100 +++ linux-3.10/drivers/input/misc/wistron_btns.c 2013-11-16 09:24:37.356028732 +0100 @@ -33,6 +33,7 @@ #include #include #include +#include /* How often we poll keys - msecs */ #define POLL_INTERVAL_DEFAULT 500 /* when idle */ @@ -124,6 +125,7 @@ if (entry_point >= 0xF0000) { bios_code_map_base = base; bios_entry_point = bios_code_map_base + (entry_point & 0xFFFF); + set_memory_x((unsigned long)bios_code_map_base, 0x10000 >> PAGE_SHIFT); } else { iounmap(base); bios_code_map_base = ioremap(entry_point & ~0x3FFF, 0x4000); @@ -134,6 +136,7 @@ goto err; } bios_entry_point = bios_code_map_base + (entry_point & 0x3FFF); + set_memory_x((unsigned long)bios_code_map_base, 0x4000 >> PAGE_SHIFT); } /* The Windows driver maps 0x10000 bytes, we keep only one page... */ bios_data_map_base = ioremap(0x400, 0xc00); --- linux-5.4/arch/x86/mm/pat/set_memory.c~ 2019-11-25 01:32:01.000000000 +0100 +++ linux-5.4/arch/x86/mm/pat/set_memory.c 2019-11-27 06:38:21.886578313 +0100 @@ -1885,6 +1885,7 @@ int set_memory_x(unsigned long addr, int return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_NX), 0); } +EXPORT_SYMBOL(set_memory_x); int set_memory_nx(unsigned long addr, int numpages) {