linux-kernel - [patch 02/11] rseq: Condense the inline stubs

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Message-ID: <20250813162823.909295085@linutronix.de>
Date: Wed, 13 Aug 2025 18:29:17 +0200 (CEST)
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Michael Jeanson <mjeanson@...icios.com>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Peter Zijlstra <peterz@...radead.org>,
 "Paul E. McKenney" <paulmck@...nel.org>,
 Boqun Feng <boqun.feng@...il.com>,
 Wei Liu <wei.liu@...nel.org>,
 Jens Axboe <axboe@...nel.dk>
Subject: [patch 02/11] rseq: Condense the inline stubs

Scrolling over tons of pointless

{
}

lines to find the actual code is annoying at best.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Cc: Mathieu Desnoyers <mathieu.desnoyers@...icios.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: "Paul E. McKenney" <paulmck@...nel.org>
Cc: Boqun Feng <boqun.feng@...il.com>
---
 include/linux/rseq.h |   47 ++++++++++++-----------------------------------
 1 file changed, 12 insertions(+), 35 deletions(-)

--- a/include/linux/rseq.h
+++ b/include/linux/rseq.h
@@ -101,44 +101,21 @@ static inline void rseq_execve(struct ta
 	t->rseq_event_mask = 0;
 }
 
-#else
-
-static inline void rseq_set_notify_resume(struct task_struct *t)
-{
-}
-static inline void rseq_handle_notify_resume(struct ksignal *ksig,
-					     struct pt_regs *regs)
-{
-}
-static inline void rseq_signal_deliver(struct ksignal *ksig,
-				       struct pt_regs *regs)
-{
-}
-static inline void rseq_preempt(struct task_struct *t)
-{
-}
-static inline void rseq_migrate(struct task_struct *t)
-{
-}
-static inline void rseq_fork(struct task_struct *t, unsigned long clone_flags)
-{
-}
-static inline void rseq_execve(struct task_struct *t)
-{
-}
+#else /* CONFIG_RSEQ */
+static inline void rseq_set_notify_resume(struct task_struct *t) { }
+static inline void rseq_handle_notify_resume(struct ksignal *ksig, struct pt_regs *regs) { }
+static inline void rseq_signal_deliver(struct ksignal *ksig, struct pt_regs *regs) { }
+static inline void rseq_preempt(struct task_struct *t) { }
+static inline void rseq_migrate(struct task_struct *t) { }
+static inline void rseq_fork(struct task_struct *t, unsigned long clone_flags) { }
+static inline void rseq_execve(struct task_struct *t) { }
 static inline void rseq_exit_to_user_mode(void) { }
-#endif
+#endif  /* !CONFIG_RSEQ */
 
 #ifdef CONFIG_DEBUG_RSEQ
-
 void rseq_syscall(struct pt_regs *regs);
-
-#else
-
-static inline void rseq_syscall(struct pt_regs *regs)
-{
-}
-
-#endif
+#else /* CONFIG_DEBUG_RSEQ */
+static inline void rseq_syscall(struct pt_regs *regs) { }
+#endif /* !CONFIG_DEBUG_RSEQ */
 
 #endif /* _LINUX_RSEQ_H */