From: Karel Zak <kzak@redhat.com>
Date: Mon, 9 Dec 2019 11:22:31 +0000 (+0100)
Subject: include/pidfd-utils: small cleanup
X-Git-Tag: v2.35-rc1~18
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6c3de881c7a136632766ab25f4b7b5d75608f04;p=thirdparty%2Futil-linux.git

include/pidfd-utils: small cleanup

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/include/pidfd-utils.h b/include/pidfd-utils.h
index cc8aa5788e..593346576b 100644
--- a/include/pidfd-utils.h
+++ b/include/pidfd-utils.h
@@ -1,9 +1,10 @@
 #ifndef UTIL_LINUX_PIDFD_UTILS
 #define UTIL_LINUX_PIDFD_UTILS
 
-#if defined (__linux__)
+#if defined(__linux__) && defined(SYS_pidfd_send_signal)
 # include <sys/types.h>
 # include <sys/syscall.h>
+
 # ifndef HAVE_PIDFD_OPEN
 static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
 				    unsigned int flags)
@@ -11,13 +12,15 @@ static inline int pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
 	return syscall(SYS_pidfd_send_signal, pidfd, sig, info, flags);
 }
 # endif
+
 # ifndef HAVE_PIDFD_SEND_SIGNAL
 static inline int pidfd_open(pid_t pid, unsigned int flags)
 {
 	return syscall(SYS_pidfd_open, pid, flags);
 }
 # endif
+
 # define UL_HAVE_PIDFD 1
-#endif
 
-#endif
+#endif /* __linux__ && SYS_pidfd_send_signal */
+#endif /* UTIL_LINUX_PIDFD_UTILS */