selftests/powerpc: Use PKEY_UNRESTRICTED macro

Replace literal 0 with macro PKEY_UNRESTRICTED where pkey_*() functions
are used in mm selftests for memory protection keys for ppc target.

Signed-off-by: Yury Khrustalev <[email protected]>
Suggested-by: Kevin Brodsky <[email protected]>
Reviewed-by: Kevin Brodsky <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>

Author: yury-khrustalev

tools/testing/selftests/powerpc/include/pkeys.h

@@ -93,7 +93,7 @@ int pkeys_unsupported(void)
 	SKIP_IF(!hash_mmu);
 
 	/* Check if the system call is supported */
-	pkey = sys_pkey_alloc(0, 0);
+	pkey = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
 	SKIP_IF(pkey < 0);
 	sys_pkey_free(pkey);
 

tools/testing/selftests/powerpc/mm/pkey_exec_prot.c

@@ -72,7 +72,7 @@ static void segv_handler(int signum, siginfo_t *sinfo, void *ctx)
 
 		switch (fault_type) {
 		case PKEY_DISABLE_ACCESS:
-			pkey_set_rights(fault_pkey, 0);
+			pkey_set_rights(fault_pkey, PKEY_UNRESTRICTED);
 			break;
 		case PKEY_DISABLE_EXECUTE:
 			/*

tools/testing/selftests/powerpc/mm/pkey_siginfo.c

@@ -83,7 +83,7 @@ static void segv_handler(int signum, siginfo_t *sinfo, void *ctx)
 	    mprotect(pgstart, pgsize, PROT_EXEC))
 		_exit(1);
 	else
-		pkey_set_rights(pkey, 0);
+		pkey_set_rights(pkey, PKEY_UNRESTRICTED);
 
 	fault_count++;
 }

tools/testing/selftests/powerpc/ptrace/core-pkey.c

@@ -95,16 +95,16 @@ static int child(struct shared_info *info)
 	/* Get some pkeys so that we can change their bits in the AMR. */
 	pkey1 = sys_pkey_alloc(0, PKEY_DISABLE_EXECUTE);
 	if (pkey1 < 0) {
-		pkey1 = sys_pkey_alloc(0, 0);
+		pkey1 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
 		FAIL_IF(pkey1 < 0);
 
 		disable_execute = false;
 	}
 
-	pkey2 = sys_pkey_alloc(0, 0);
+	pkey2 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
 	FAIL_IF(pkey2 < 0);
 
-	pkey3 = sys_pkey_alloc(0, 0);
+	pkey3 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
 	FAIL_IF(pkey3 < 0);
 
 	info->amr |= 3ul << pkeyshift(pkey1) | 2ul << pkeyshift(pkey2);

tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c

@@ -57,16 +57,16 @@ static int child(struct shared_info *info)
 	/* Get some pkeys so that we can change their bits in the AMR. */
 	pkey1 = sys_pkey_alloc(0, PKEY_DISABLE_EXECUTE);
 	if (pkey1 < 0) {
-		pkey1 = sys_pkey_alloc(0, 0);
+		pkey1 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
 		CHILD_FAIL_IF(pkey1 < 0, &info->child_sync);
 
 		disable_execute = false;
 	}
 
-	pkey2 = sys_pkey_alloc(0, 0);
+	pkey2 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
 	CHILD_FAIL_IF(pkey2 < 0, &info->child_sync);
 
-	pkey3 = sys_pkey_alloc(0, 0);
+	pkey3 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
 	CHILD_FAIL_IF(pkey3 < 0, &info->child_sync);
 
 	info->amr1 |= 3ul << pkeyshift(pkey1);