musl libc defines PAGE_SIZE as a signed int in <limits.h> under _GNU_SOURCE, conflicting with kernel headers that require an unsigned 64-bit definition:
include/x86/processor.h:372:9: warning: 'PAGE_SIZE' redefined /usr/include/x86_64-linux-musl/limits.h:97:9: note: this is the location of the previous definition Undefine PAGE_SIZE immediately after the #include <limits.h> to prevent musl's definition from leaking into kernel headers. This is a no-op on glibc, which does not define PAGE_SIZE in <limits.h>. Reported-by: Aqib Faruqui <[email protected]> Link: https://lore.kernel.org/kvm/[email protected]/ Signed-off-by: Hisam Mehboob <[email protected]> --- tools/include/linux/bitops.h | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h index b4e4cd071f8c..62117a77ceb5 100644 --- a/tools/include/linux/bitops.h +++ b/tools/include/linux/bitops.h @@ -4,6 +4,7 @@ #include <asm/types.h> #include <limits.h> +#undef PAGE_SIZE #ifndef __WORDSIZE #define __WORDSIZE (__SIZEOF_LONG__ * 8) #endif -- 2.51.0
