field '' with variable sized type 'union jset::(anonymous at ./usr/include/linux/bcache.h:354:2)' not at the end of a struct or class is a GNU extension [-Wgnu-variable-sized-type-not-at-end]

field '' with variable sized type 'union jset::(anonymous at ./usr/include/linux/bcache.h:355:2)' not at the end of a struct or class is a GNU extension [-Wgnu-variable-sized-type-not-at-end]

objtool: balance_leaf()+0x6ced: stack state mismatch: cfa1=7+344 cfa2=7+360

objtool: leaf_copy_items_entirely()+0x7c4: stack state mismatch: cfa1=7+240 cfa2=7+232

objtool: __setup_rt_frame()+0x334: call to memset() with UACCESS enabled

objtool: ia32_setup_rt_frame()+0x1d5: call to memset() with UACCESS enabled