1 files changed, 0 insertions, 19 deletions
diff --git a/util.h b/util.h
index 963f57b..3616515 100644
--- a/util.h
+++ b/util.h
@@ -17,7 +17,6 @@
 #include <arpa/inet.h>
 #include <unistd.h>
 #include <sys/syscall.h>
-#include <linux/close_range.h>
 
 #include "log.h"
 
@@ -171,24 +170,6 @@ int do_clone(int (*fn)(void *), char *stack_area, size_t stack_size, int flags,
 
 struct ctx;
 
-#ifdef CLOSE_RANGE_UNSHARE	/* Linux kernel >= 5.9 */
-/* glibc < 2.34 and musl as of 1.2.5 need these */
-#ifndef SYS_close_range
-#define SYS_close_range		436
-#endif
-__attribute__ ((weak))
-/* cppcheck-suppress funcArgNamesDifferent */
-int close_range(unsigned int first, unsigned int last, int flags) {
-	return syscall(SYS_close_range, first, last, flags);
-}
-#else
-/* No reasonable fallback option */
-/* cppcheck-suppress funcArgNamesDifferent */
-int close_range(unsigned int first, unsigned int last, int flags) {
-	return 0;
-}
-#endif
-
 int sock_l4_sa(const struct ctx *c, enum epoll_type type,
 	       const void *sa, socklen_t sl,
 	       const char *ifname, bool v6only, uint32_t data);