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-rw-r--r--arch/x86/include/uapi/asm/prctl.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h
index 6a8e0e1bff4a..eedfde3b63be 100644
--- a/arch/x86/include/uapi/asm/prctl.h
+++ b/arch/x86/include/uapi/asm/prctl.h
@@ -36,5 +36,6 @@
/* ARCH_SHSTK_ features bits */
#define ARCH_SHSTK_SHSTK (1ULL << 0)
+#define ARCH_SHSTK_WRSS (1ULL << 1)
#endif /* _ASM_X86_PRCTL_H */