From 1ed29c4adac9eeb513eb6f83bbfd8f5229b96d16 Mon Sep 17 00:00:00 2001
From: Anders Roxell <anders.roxell@linaro.org>
Date: Mon, 12 Mar 2018 08:50:40 +0100
Subject: [PATCH 1/2] selftests/memfd/memfd_test.c: fix implicit declaration
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gcc warns about implicit declaration.

gcc -D_FILE_OFFSET_BITS=64 -I../../../../include/uapi/ -I../../../../include/
   -I../../../../usr/include/    memfd_test.c common.o  -o memfd_test
memfd_test.c: In function ‘mfd_assert_get_seals’:
memfd_test.c:74:6: warning: implicit declaration of function ‘fcntl’
   [-Wimplicit-function-declaration]
  r = fcntl(fd, F_GET_SEALS);
      ^~~~~
memfd_test.c: In function ‘mfd_assert_open’:
memfd_test.c:197:6: warning: implicit declaration of function ‘open’
   [-Wimplicit-function-declaration]
  r = open(buf, flags, mode);
      ^~~~
memfd_test.c: In function ‘mfd_assert_write’:
memfd_test.c:328:6: warning: implicit declaration of function ‘fallocate’
    [-Wimplicit-function-declaration]
  r = fallocate(fd,
      ^~~~~~~~~

In the current code, we include the headers that the functions want
according to the man pages, and we add some defines that will be used if
they isn't found in glibc.

Fixes: 4f5ce5e8d7e2 ("selftests: add memfd_create() + sealing tests")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
---
 tools/testing/selftests/memfd/common.h     | 22 ++++++++++++++++++++++
 tools/testing/selftests/memfd/memfd_test.c |  3 ++-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/memfd/common.h b/tools/testing/selftests/memfd/common.h
index 522d2c630bd8..d428fe14b7f6 100644
--- a/tools/testing/selftests/memfd/common.h
+++ b/tools/testing/selftests/memfd/common.h
@@ -1,6 +1,28 @@
 #ifndef COMMON_H_
 #define COMMON_H_
 
+#ifndef F_LINUX_SPECIFIC_BASE
+#    define F_LINUX_SPECIFIC_BASE      1024
+#endif
+#ifndef F_ADD_SEALS
+#    define F_ADD_SEALS        (F_LINUX_SPECIFIC_BASE + 9)
+#endif
+#ifndef F_GET_SEALS
+#    define F_GET_SEALS        (F_LINUX_SPECIFIC_BASE + 10)
+#endif
+#ifndef F_SEAL_SEAL
+#    define F_SEAL_SEAL        0x0001  /* prevent further seals from being set */
+#endif
+#ifndef F_SEAL_SHRINK
+#    define F_SEAL_SHRINK      0x0002  /* prevent file from shrinking */
+#endif
+#ifndef F_SEAL_GROW
+#    define F_SEAL_GROW        0x0004  /* prevent file from growing */
+#endif
+#ifndef F_SEAL_WRITE
+#    define F_SEAL_WRITE       0x0008  /* prevent writes */
+#endif
+
 extern int hugetlbfs_test;
 
 unsigned long default_huge_page_size(void);
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 10baa1652fc2..273c34b76bd5 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -6,7 +6,6 @@
 #include <inttypes.h>
 #include <limits.h>
 #include <linux/falloc.h>
-#include <linux/fcntl.h>
 #include <linux/memfd.h>
 #include <sched.h>
 #include <stdio.h>
@@ -14,9 +13,11 @@
 #include <signal.h>
 #include <string.h>
 #include <sys/mman.h>
+#include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/syscall.h>
 #include <sys/wait.h>
+#include <fcntl.h>
 #include <unistd.h>
 
 #include "common.h"
-- 
2.11.0