include/pidfd-utils: remove hardcoded syscall fallback

Based on https://github.com/util-linux/util-linux/pull/3018

The syscall numbers should not be hardcoded in the header file. If we
really need them, there is UL_CHECK_SYSCALL() to define the numbers
for different architectures. I doubt it's really necessary. Just
update your kernel header files to get the latest kernel updates ...

Signed-off-by: Karel Zak <kzak@redhat.com>
(cherry picked from commit 057080b5c89fa63cece8a5d4a6da4959bd004aa1)

diff --git a/include/pidfd-utils.h b/include/pidfd-utils.h
index ff0bc4c792fc5e07bcecd4244142c0529eed52f0..2fe4f5a7f20cb0dbdcacae2ae1fa0dbd7f01eae0 100644 (file)
--- a/include/pidfd-utils.h
+++ b/include/pidfd-utils.h
@@ -8,19 +8,6 @@
 #ifdef HAVE_SYS_SYSCALL_H
 # include <sys/syscall.h>
 
-/*
- * If the kernel headers are too old to provide the syscall numbers, let's
- * define them ourselves. This can be helpful while cross-compiling.
- */
-#ifndef __NR_pidfd_send_signal
-#define __NR_pidfd_send_signal 424
-#define SYS_pidfd_send_signal __NR_pidfd_send_signal
-#endif
-#ifndef __NR_pidfd_open
-#define __NR_pidfd_open 434
-#define SYS_pidfd_open __NR_pidfd_open
-#endif
-
 # if defined(SYS_pidfd_send_signal) && defined(SYS_pidfd_open)
 #  ifdef HAVE_SYS_PIDFD_H
 #   include <sys/pidfd.h>