[PATCH 2/2] powerpc: sys_pkey_mprotect() system call

[Dan Streetman]

From: Ram Pai <linuxram at us.ibm.com>

BugLink: https://bugs.launchpad.net/bugs/1821625

Patch provides the ability for a process to
associate a pkey with a address range.

Signed-off-by: Ram Pai <linuxram at us.ibm.com>
Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
(cherry picked from commit 3350eb2ea127978319ced883523d828046af4045)
Signed-off-by: Dan Streetman <ddstreet at canonical.com>
---
 arch/powerpc/include/asm/systbl.h      | 1 +
 arch/powerpc/include/asm/unistd.h      | 4 +---
 arch/powerpc/include/uapi/asm/unistd.h | 1 +
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index dea4a952ec53d..d61f9c96d9163 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -391,3 +391,4 @@ SYSCALL(kexec_file_load)
 SYSCALL(statx)
 SYSCALL(pkey_alloc)
 SYSCALL(pkey_free)
+SYSCALL(pkey_mprotect)
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index e0273bc5b0952..daf1ba97a00cd 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -12,12 +12,10 @@
 #include <uapi/asm/unistd.h>
 
 
-#define NR_syscalls		386
+#define NR_syscalls		387
 
 #define __NR__exit __NR_exit
 
-#define __IGNORE_pkey_mprotect
-
 #ifndef __ASSEMBLY__
 
 #include <linux/types.h>
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index 5db438516e61b..389c36fd82990 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -397,5 +397,6 @@
 #define __NR_statx		383
 #define __NR_pkey_alloc		384
 #define __NR_pkey_free		385
+#define __NR_pkey_mprotect	386
 
 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
-- 
2.20.1