From: Günther Noack <gnoack3000@gmail.com>
Date: Fri, 27 Mar 2026 16:48:27 +0000 (+0100)
Subject: landlock: Use mem_is_zero() in is_layer_masks_allowed()
X-Git-Url: http://git.ipfire.org/index.cgi?a=commitdiff_plain;h=1c4fe87364782d1b058cc9d15fc8acef44bce033;p=thirdparty%2Fkernel%2Flinux.git

landlock: Use mem_is_zero() in is_layer_masks_allowed()

This is equivalent, but expresses the intent a bit clearer.

Signed-off-by: Günther Noack <gnoack3000@gmail.com>
Link: https://lore.kernel.org/r/20260327164838.38231-3-gnoack3000@gmail.com
Signed-off-by: Mickaël Salaün <mic@digikod.net>
---

diff --git a/security/landlock/fs.c b/security/landlock/fs.c
index a03ec664c78e9..97065d51685a9 100644
--- a/security/landlock/fs.c
+++ b/security/landlock/fs.c
@@ -564,7 +564,7 @@ static void test_no_more_access(struct kunit *const test)
 
 static bool is_layer_masks_allowed(const struct layer_access_masks *masks)
 {
-	return !memchr_inv(&masks->access, 0, sizeof(masks->access));
+	return mem_is_zero(&masks->access, sizeof(masks->access));
 }
 
 /*