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-rw-r--r--arch/x86/include/uapi/asm/prctl.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h
index 1cd44ecc9ce0..6a8e0e1bff4a 100644
--- a/arch/x86/include/uapi/asm/prctl.h
+++ b/arch/x86/include/uapi/asm/prctl.h
@@ -34,4 +34,7 @@
#define ARCH_SHSTK_DISABLE 0x5002
#define ARCH_SHSTK_LOCK 0x5003
+/* ARCH_SHSTK_ features bits */
+#define ARCH_SHSTK_SHSTK (1ULL << 0)
+
#endif /* _ASM_X86_PRCTL_H */