linux-kernel - [PATCH] locking/rwsem: Remove an unused parameter of rwsem

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1625547043-28103-1-git-send-email-yehanxu1@gmail.com>
Date:   Tue,  6 Jul 2021 12:50:43 +0800
From:   Yehan Xu <yehanxu1@...il.com>
To:     peterz@...radead.org, mingo@...hat.com, will@...nel.org
Cc:     longman@...hat.com, boqun.feng@...il.com,
        linux-kernel@...r.kernel.org, xuyehan <xuyehan@...omi.com>
Subject: [PATCH] locking/rwsem: Remove an unused parameter of rwsem_wake()

From: xuyehan <xuyehan@...omi.com>

The 2nd parameter 'count' is not used in this function.
The places where the function is called are also modified.

Signed-off-by: xuyehan <xuyehan@...omi.com>
---
 kernel/locking/rwsem.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 16bfbb1..8a595b6 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -1165,7 +1165,7 @@ rwsem_down_write_slowpath(struct rw_semaphore *sem, int state)
  * handle waking up a waiter on the semaphore
  * - up_read/up_write has decremented the active part of count if we come here
  */
-static struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem, long count)
+static struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
 {
 	unsigned long flags;
 	DEFINE_WAKE_Q(wake_q);
@@ -1297,7 +1297,7 @@ static inline void __up_read(struct rw_semaphore *sem)
 	if (unlikely((tmp & (RWSEM_LOCK_MASK|RWSEM_FLAG_WAITERS)) ==
 		      RWSEM_FLAG_WAITERS)) {
 		clear_nonspinnable(sem);
-		rwsem_wake(sem, tmp);
+		rwsem_wake(sem);
 	}
 }
 
@@ -1319,7 +1319,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 	rwsem_clear_owner(sem);
 	tmp = atomic_long_fetch_add_release(-RWSEM_WRITER_LOCKED, &sem->count);
 	if (unlikely(tmp & RWSEM_FLAG_WAITERS))
-		rwsem_wake(sem, tmp);
+		rwsem_wake(sem);
 }
 
 /*
-- 
2.7.4