kernel 5.4 unexported set_memory_x symbol because

"No module currently messed with clearing or setting the execute
permission of kernel memory, and none really should."

but this patch does exactly that, so export symbol again.

diff --git a/linux-wistron-nx.patch b/linux-wistron-nx.patch
index 8336ad8fe7b07c30156fb29fe86c11c69ab862b8..bbd6a92354a482b1001495179f559c7e05aa43e5 100644 (file)
--- a/linux-wistron-nx.patch
+++ b/linux-wistron-nx.patch
@@ -24,3 +24,13 @@
        }
        /* The Windows driver maps 0x10000 bytes, we keep only one page... */
        bios_data_map_base = ioremap(0x400, 0xc00);
+--- linux-5.4/arch/x86/mm/pageattr.c~  2019-11-25 01:32:01.000000000 +0100
++++ linux-5.4/arch/x86/mm/pageattr.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)
+ {