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From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Michael Jeanson <mjeanson@efficios.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Peter Zijlstra <peterz@infradead.org>,
	"Paul E. McKenney" <paulmck@kernel.org>,
	Boqun Feng <boqun.feng@gmail.com>, Wei Liu <wei.liu@kernel.org>,
	Jens Axboe <axboe@kernel.dk>
Subject: [patch 02/11] rseq: Condense the inline stubs
Date: Wed, 13 Aug 2025 18:29:17 +0200 (CEST)	[thread overview]
Message-ID: <20250813162823.909295085@linutronix.de> (raw)
In-Reply-To: <20250813155941.014821755@linutronix.de>

Scrolling over tons of pointless

{
}

lines to find the actual code is annoying at best.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Boqun Feng <boqun.feng@gmail.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 */


  parent reply	other threads:[~2025-08-13 16:29 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-13 16:29 [patch 00/11] rseq: Optimize exit to user space Thomas Gleixner
2025-08-13 16:29 ` [patch 01/11] rseq: Avoid pointless evaluation in __rseq_notify_resume() Thomas Gleixner
2025-08-20 14:23   ` Mathieu Desnoyers
2025-08-13 16:29 ` Thomas Gleixner [this message]
2025-08-20 14:24   ` [patch 02/11] rseq: Condense the inline stubs Mathieu Desnoyers
2025-08-13 16:29 ` [patch 03/11] rseq: Rename rseq_syscall() to rseq_debug_syscall_exit() Thomas Gleixner
2025-08-20 14:25   ` Mathieu Desnoyers
2025-08-13 16:29 ` [patch 04/11] rseq: Replace the pointless event mask bit fiddling Thomas Gleixner
2025-08-13 16:29 ` [patch 05/11] rseq: Optimize the signal delivery path Thomas Gleixner
2025-08-13 16:29 ` [patch 06/11] rseq: Optimize exit to user space further Thomas Gleixner
2025-08-13 16:29 ` [patch 07/11] entry: Cleanup header Thomas Gleixner
2025-08-13 17:09   ` Giorgi Tchankvetadze
2025-08-13 21:30     ` Thomas Gleixner
2025-08-13 16:29 ` [patch 08/11] entry: Distinguish between syscall and interrupt exit Thomas Gleixner
2025-08-13 16:29 ` [patch 09/11] entry: Provide exit_to_user_notify_resume() Thomas Gleixner
2025-08-13 16:29 ` [patch 10/11] rseq: Skip fixup when returning from a syscall Thomas Gleixner
2025-08-14  8:54   ` Peter Zijlstra
2025-08-14 13:24     ` Thomas Gleixner
2025-08-13 16:29 ` [patch 11/11] rseq: Convert to masked user access where applicable Thomas Gleixner
2025-08-13 17:45 ` [patch 00/11] rseq: Optimize exit to user space Jens Axboe
2025-08-13 21:32   ` Thomas Gleixner
2025-08-13 21:36     ` Jens Axboe
2025-08-13 22:08       ` Thomas Gleixner
2025-08-17 21:23         ` Thomas Gleixner
2025-08-18 14:00           ` BUG: rseq selftests and librseq vs. glibc fail Thomas Gleixner
2025-08-18 14:15             ` Florian Weimer
2025-08-18 17:13               ` Thomas Gleixner
2025-08-18 19:33                 ` Florian Weimer
2025-08-18 19:46                   ` Sean Christopherson
2025-08-18 19:55                     ` Florian Weimer
2025-08-18 20:27                       ` Sean Christopherson
2025-08-18 23:54                         ` Thomas Gleixner
2025-08-19  0:28                           ` Sean Christopherson
2025-08-19  6:18                             ` Florian Weimer
2025-08-29 18:44                 ` Prakash Sangappa
2025-08-29 18:50                   ` Mathieu Desnoyers
2025-09-01 19:30                     ` Prakash Sangappa
2025-08-18 17:38           ` [patch 00/11] rseq: Optimize exit to user space Michael Jeanson
2025-08-18 20:21             ` Thomas Gleixner
2025-08-18 21:29               ` Michael Jeanson
2025-08-18 23:43                 ` Thomas Gleixner
2025-08-20 14:27           ` Mathieu Desnoyers
2025-08-20 14:10 ` Mathieu Desnoyers

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