../lib/vsprintf.c: In function ‘va_format’:
../lib/vsprintf.c:1712:9: warning: function ‘va_format’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
 1712 |         buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va);
      |         ^~~
../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?
../lib/vsprintf.c: In function ‘va_format’:
../lib/vsprintf.c:1718:9: warning: function ‘va_format’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
 1718 |         buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va);
      |         ^~~
../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?
../lib/vsprintf.c: In function ‘va_format’:
../lib/vsprintf.c:1712:9: warning: function ‘va_format’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format]
 1712 |         buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va);
      |         ^~~
../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?