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authorJinbum Park <jinb.park7@gmail.com>2017-02-27 14:30:22 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-27 18:43:48 -0800
commit2959a5f726f6510d6dd7c958f8877e08d0cf589c (patch)
tree4c5490b936791a7c9373d0c1c52ccc99022194ee /include
parent8d85063adbb1eb3d168e226fef96995391462c20 (diff)
mm: add arch-independent testcases for RODATA
This patch makes arch-independent testcases for RODATA. Both x86 and x86_64 already have testcases for RODATA, But they are arch-specific because using inline assembly directly. And cacheflush.h is not a suitable location for rodata-test related things. Since they were in cacheflush.h, If someone change the state of CONFIG_DEBUG_RODATA_TEST, It cause overhead of kernel build. To solve the above issues, write arch-independent testcases and move it to shared location. [jinb.park7@gmail.com: fix config dependency] Link: http://lkml.kernel.org/r/20170209131625.GA16954@pjb1027-Latitude-E5410 Link: http://lkml.kernel.org/r/20170129105436.GA9303@pjb1027-Latitude-E5410 Signed-off-by: Jinbum Park <jinb.park7@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/rodata_test.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/rodata_test.h b/include/linux/rodata_test.h
new file mode 100644
index 000000000000..ea05f6c51413
--- /dev/null
+++ b/include/linux/rodata_test.h
@@ -0,0 +1,23 @@
+/*
+ * rodata_test.h: functional test for mark_rodata_ro function
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author: Arjan van de Ven <arjan@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#ifndef _RODATA_TEST_H
+#define _RODATA_TEST_H
+
+#ifdef CONFIG_DEBUG_RODATA_TEST
+extern const int rodata_test_data;
+void rodata_test(void);
+#else
+static inline void rodata_test(void) {}
+#endif
+
+#endif /* _RODATA_TEST_H */