# \[PATCH 5/5\] KVM: selftests: Remove \_\_NR\_userfaultfd syscall fallback

- From: Sean Christopherson \<seanjc@google.com\>
- Date: 2021-08-18 00:12:48 
- List: kvm
- Page: https://ratatoskr.run/kvm/2021/08/1480997
- Thread: https://ratatoskr.run/linux-arm-kernel/2021/08/1480992/t.md

```text
Revert the __NR_userfaultfd syscall fallback added for KVM selftests now
that x86's unistd_{32,63}.h overrides are under uapi/ and thus not in
KVM sefltests' search path, i.e. now that KVM gets x86 syscall numbers
from the installed kernel headers.

No functional change intended.

Cc: Ben Gardon <redacted>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 tools/arch/x86/include/uapi/asm/unistd_64.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tools/arch/x86/include/uapi/asm/unistd_64.h b/tools/arch/x86/include/uapi/asm/unistd_64.h
index 4205ed4158bf..cb52a3a8b8fc 100644
--- a/tools/arch/x86/include/uapi/asm/unistd_64.h
+++ b/tools/arch/x86/include/uapi/asm/unistd_64.h
@@ -1,7 +1,4 @@
 /* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __NR_userfaultfd
-#define __NR_userfaultfd 282
-#endif
 #ifndef __NR_perf_event_open
 # define __NR_perf_event_open 298
 #endif
-- 
2.33.0.rc1.237.g0d66db33f3-goog

```
