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]

arch/x86/kernel/signal.o: warning: objtool: __setup_rt_frame()+0x32e: call to memset() with UACCESS enabled

fs/reiserfs/do_balan.o: warning: objtool: balance_leaf()+0x6ef5: stack state mismatch: cfa1=7+336 cfa2=7+352

arch/x86/ia32/ia32_signal.o: warning: objtool: ia32_setup_rt_frame()+0x1d0: call to memset() with UACCESS enabled

variable 'incr' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]