[PATCH] selftests/mm: remove the local PKEY_UNRESTRICTED fallback

[Hemanth Selam <hemanth.selam@gmail.com>]

pkey-helpers.h defines PKEY_UNRESTRICTED itself when the macro is not
already known, a stopgap from when the generic definition was still
under review.  It has been merged since, commit 6d61527d931b ("mm/pkey:
Add PKEY_UNRESTRICTED macro"), and pkey-helpers.h already includes
<linux/mman.h>, so the guard is never taken.  Honour the FIXME and drop
it.

The mm selftests build against the headers of the kernel source, see
Documentation/dev-tools/kselftest.rst.  Building them without "make
headers", against system headers predating the macro, now fails to
compile instead of quietly falling back.

No functional change intended.

Signed-off-by: Hemanth Selam <hemanth.selam@gmail.com>
---
 tools/testing/selftests/mm/pkey-helpers.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/tools/testing/selftests/mm/pkey-helpers.h b/tools/testing/selftests/mm/pkey-helpers.h
index 2c377f4e9df1..626c2e1655dc 100644
--- a/tools/testing/selftests/mm/pkey-helpers.h
+++ b/tools/testing/selftests/mm/pkey-helpers.h
@@ -112,13 +112,6 @@ void record_pkey_malloc(void *ptr, long size, int prot);
 #define PKEY_MASK	(PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE)
 #endif
 
-/*
- * FIXME: Remove once the generic PKEY_UNRESTRICTED definition is merged.
- */
-#ifndef PKEY_UNRESTRICTED
-#define PKEY_UNRESTRICTED 0x0
-#endif
-
 #ifndef set_pkey_bits
 static inline u64 set_pkey_bits(u64 reg, int pkey, u64 flags)
 {
-- 
2.43.7