linux-kernel - [PATCH] ipc/msg: Replace testmsg with msg_matchs

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Message-ID: <20250902140548.110167-1-sef1548@gmail.com>
Date: Tue,  2 Sep 2025 22:05:48 +0800
From: Nick Huang <sef1548@...il.com>
To: linux-kernel@...r.kernel.org
Cc: kusogame68@...il.com,
	Nick Huang <sef1548@...il.com>
Subject: [PATCH] ipc/msg: Replace testmsg with  msg_matchs_type

The function name testmsg is misleading, as its purpose is not to test a message
but to check whether a message matches the given mode and type conditions.

To more clearly convey its role in validating whether a message can be used for
send or receive operations, it has been renamed to msg_matchs_type.

Signed-off-by: Nick Huang <sef1548@...il.com>
---
 ipc/msg.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/ipc/msg.c b/ipc/msg.c
index ee6af4fe52..0831a3589c 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -791,7 +791,7 @@ COMPAT_SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, void __user *, uptr)
 #endif
 #endif
 
-static int testmsg(struct msg_msg *msg, long type, int mode)
+static int msg_matchs_type(struct msg_msg *msg, long type, int mode)
 {
 	switch (mode) {
 	case SEARCH_ANY:
@@ -819,7 +819,7 @@ static inline int pipelined_send(struct msg_queue *msq, struct msg_msg *msg,
 	struct msg_receiver *msr, *t;
 
 	list_for_each_entry_safe(msr, t, &msq->q_receivers, r_list) {
-		if (testmsg(msg, msr->r_msgtype, msr->r_mode) &&
+		if (msg_matchs_type(msg, msr->r_msgtype, msr->r_mode) &&
 		    !security_msg_queue_msgrcv(&msq->q_perm, msg, msr->r_tsk,
 					       msr->r_msgtype, msr->r_mode)) {
 
@@ -1077,7 +1077,7 @@ static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode)
 	long count = 0;
 
 	list_for_each_entry(msg, &msq->q_messages, m_list) {
-		if (testmsg(msg, *msgtyp, mode) &&
+		if (msg_matchs_type(msg, *msgtyp, mode) &&
 		    !security_msg_queue_msgrcv(&msq->q_perm, msg, current,
 					       *msgtyp, mode)) {
 			if (mode == SEARCH_LESSEQUAL && msg->m_type != 1) {
-- 
2.48.1