--- zzzz-none-000/linux-3.10.107/include/linux/elf.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/include/linux/elf.h	2021-11-10 11:53:56.000000000 +0000
@@ -37,13 +37,18 @@
 
 #endif
 
+#ifndef elf_lib_check_arch
+#define elf_lib_check_arch(a)   (1)
+#endif
+
 /* Optional callbacks to write extra ELF notes. */
 struct file;
 
 #ifndef ARCH_HAVE_EXTRA_ELF_NOTES
 static inline int elf_coredump_extra_notes_size(void) { return 0; }
-static inline int elf_coredump_extra_notes_write(struct file *file,
-			loff_t *foffset) { return 0; }
+static inline int elf_coredump_extra_notes_write(
+			struct file *file __maybe_unused,
+			loff_t *foffset __maybe_unused) { return 0; }
 #else
 extern int elf_coredump_extra_notes_size(void);
 extern int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset);