[PATCH 03/13] signal: use cred_ids_allow_signal()

[Josef Bacik]

kill_ok_by_cred() and kill_as_cred_perm() have the same four comparisons
each. Use the library.

No functional change.

Assisted-by: LLM
Signed-off-by: Josef Bacik <josef at toxicpanda.com>
---
 kernel/signal.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index e433de93b430..bdca8f9e0fbd 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -791,10 +791,7 @@ static bool kill_ok_by_cred(struct task_struct *t)
 	const struct cred *cred = current_cred();
 	const struct cred *tcred = __task_cred(t);
 
-	return uid_eq(cred->euid, tcred->suid) ||
-	       uid_eq(cred->euid, tcred->uid) ||
-	       uid_eq(cred->uid, tcred->suid) ||
-	       uid_eq(cred->uid, tcred->uid) ||
+	return cred_ids_allow_signal(cred, tcred) ||
 	       ns_capable(tcred->user_ns, CAP_KILL);
 }
 
@@ -1530,10 +1527,7 @@ static inline bool kill_as_cred_perm(const struct cred *cred,
 {
 	const struct cred *pcred = __task_cred(target);
 
-	return uid_eq(cred->euid, pcred->suid) ||
-	       uid_eq(cred->euid, pcred->uid) ||
-	       uid_eq(cred->uid, pcred->suid) ||
-	       uid_eq(cred->uid, pcred->uid);
+	return cred_ids_allow_signal(cred, pcred);
 }
 
 /*

-- 
2.55.0