[PATCH V4 08/10] capabilities: invert logic for clarity
From: Richard Guy Briggs <hidden>
Date: 2017-09-05 06:46:08
Subsystem:
capabilities, security subsystem, the rest · Maintainers:
Serge Hallyn, Paul Moore, James Morris, "Serge E. Hallyn", Linus Torvalds
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 <redacted> Reviewed-by: Serge Hallyn <serge@hallyn.com> Acked-by: James Morris <redacted> --- security/commoncap.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/security/commoncap.c b/security/commoncap.c
index cf95d73..7e8041d 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c@@ -544,10 +544,10 @@ 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; }
--
1.7.1
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