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authorThomas Zimmermann <tzimmermann@suse.de>2022-11-24 09:28:05 +0100
committerThomas Zimmermann <tzimmermann@suse.de>2022-11-24 09:28:05 +0100
commit1e5b3968a57d7894d5f86a2ecb58fa057cb6f7b2 (patch)
treea1beadf663bf4a318cccbfba8b4679b5fd0991c7 /include/linux/kmsan_string.h
parent6fb6c979ca628583d4d0c59a0f8ff977e581ecc0 (diff)
parentd47f9580839eb6fe568e38b2084d94887fbf5ce0 (diff)
Merge drm/drm-next into drm-misc-next
Backmerging to get v6.1-rc6 into drm-misc-next. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'include/linux/kmsan_string.h')
-rw-r--r--include/linux/kmsan_string.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/kmsan_string.h b/include/linux/kmsan_string.h
new file mode 100644
index 000000000000..7287da6f52ef
--- /dev/null
+++ b/include/linux/kmsan_string.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * KMSAN string functions API used in other headers.
+ *
+ * Copyright (C) 2022 Google LLC
+ * Author: Alexander Potapenko <glider@google.com>
+ *
+ */
+#ifndef _LINUX_KMSAN_STRING_H
+#define _LINUX_KMSAN_STRING_H
+
+/*
+ * KMSAN overrides the default memcpy/memset/memmove implementations in the
+ * kernel, which requires having __msan_XXX function prototypes in several other
+ * headers. Keep them in one place instead of open-coding.
+ */
+void *__msan_memcpy(void *dst, const void *src, size_t size);
+void *__msan_memset(void *s, int c, size_t n);
+void *__msan_memmove(void *dest, const void *src, size_t len);
+
+#endif /* _LINUX_KMSAN_STRING_H */