[PATCH v4 1/7] landlock: Optimize the number of calls to get_access_mask slightly

[Günther Noack]

This call is now going through a function pointer,
and it is not as obvious any more that it will be inlined.

Signed-off-by: Günther Noack <gnoack at google.com>
---
 security/landlock/ruleset.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/security/landlock/ruleset.c b/security/landlock/ruleset.c
index ffedc99f2b68..fd348633281c 100644
--- a/security/landlock/ruleset.c
+++ b/security/landlock/ruleset.c
@@ -724,10 +724,11 @@ landlock_init_layer_masks(const struct landlock_ruleset *const domain,
 	for (layer_level = 0; layer_level < domain->num_layers; layer_level++) {
 		const unsigned long access_req = access_request;
 		unsigned long access_bit;
+		access_mask_t access_mask =
+			get_access_mask(domain, layer_level);
 
 		for_each_set_bit(access_bit, &access_req, num_access) {
-			if (BIT_ULL(access_bit) &
-			    get_access_mask(domain, layer_level)) {
+			if (BIT_ULL(access_bit) & access_mask) {
 				(*layer_masks)[access_bit] |=
 					BIT_ULL(layer_level);
 				handled_accesses |= BIT_ULL(access_bit);
-- 
2.42.0.869.gea05f2083d-goog