From c0d1adefe0a3775cc16374dc9ebdfd8504afa14b Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Wed, 11 Oct 2017 20:57:12 -0400
Subject: [PATCH] capabilities: invert logic for clarity

The way the logic was presented, it was awkward to read and verify.
Invert the logic using DeMorgan's Law to be more easily able to read and
understand.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Acked-by: Kees Cook <keescook@chromium.org>
Okay-ished-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
---
 security/commoncap.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/security/commoncap.c b/security/commoncap.c
index eac70e2b400b..0bd94d36e635 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -782,10 +782,10 @@ static inline bool nonroot_raised_pE(struct cred *cred, kuid_t root)
 	bool ret = false;
 
 	if (__cap_grew(effective, ambient, cred) &&
-	    (!__cap_full(effective, cred) ||
-	     !__is_eff(root, cred) ||
-	     !__is_real(root, cred) ||
-	     !root_privileged()))
+	    !(__cap_full(effective, cred) &&
+	      __is_eff(root, cred) &&
+	      __is_real(root, cred) &&
+	      root_privileged()))
 		ret = true;
 	return ret;
 }