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From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: Kees Cook <keescook@chromium.org>, Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	Linus Torvalds <torvalds@linux-foundation.org>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 12/19] wait_bit: Parameterize the return variable to __wait_var_event_timeout()
Date: Wed,  2 Mar 2022 04:34:44 +0000	[thread overview]
Message-ID: <20220302043451.2441320-13-willy@infradead.org> (raw)
In-Reply-To: <20220302043451.2441320-1-willy@infradead.org>

Macros should not refer to variables which aren't in their arguments.
Pass the name from its caller.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
 include/linux/wait_bit.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h
index 227e6a20a978..46744e5e7d61 100644
--- a/include/linux/wait_bit.h
+++ b/include/linux/wait_bit.h
@@ -291,7 +291,7 @@ do {									\
 	__ret;								\
 })
 
-#define __wait_var_event_timeout(var, condition, timeout)		\
+#define __wait_var_event_timeout(var, condition, timeout, __ret)	\
 	___wait_var_event(var, ___wait_cond_timeout(condition, __ret),	\
 			  TASK_UNINTERRUPTIBLE, 0, timeout,		\
 			  __ret = schedule_timeout(__ret))
@@ -301,7 +301,8 @@ do {									\
 	long __ret = timeout;						\
 	might_sleep();							\
 	if (!___wait_cond_timeout(condition, __ret))			\
-		__ret = __wait_var_event_timeout(var, condition, timeout); \
+		__ret = __wait_var_event_timeout(var, condition,	\
+						timeout, __ret);	\
 	__ret;								\
 })
 
-- 
2.34.1


  parent reply	other threads:[~2022-03-02  4:35 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-02  4:34 [PATCH 00/19] Enable -Wshadow=local for kernel/sched Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 01/19] wait: Parameterize the return variable to ___wait_event() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 02/19] swait: Parameterize the return variable to __swait_event_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 03/19] swait: Parameterize the return variable to __swait_event_interruptible_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 04/19] swait: Parameterize the return variable to __swait_event_idle_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 05/19] wait: Parameterize the return variable to __wait_event_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 06/19] wait: Parameterize the return variable to __wait_event_freezable_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 07/19] wait: Parameterize the return variable to __wait_event_interruptible_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 08/19] wait: Parameterize the return variable to __wait_event_idle_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 09/19] wait: Parameterize the return variable to __wait_event_idle_exclusive_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 10/19] wait: Parameterize the return variable to __wait_event_killable_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` [PATCH 11/19] wait: Parameterize the return variable to __wait_event_lock_irq_timeout() Matthew Wilcox (Oracle)
2022-03-02  4:34 ` Matthew Wilcox (Oracle) [this message]
2022-03-02 18:32 ` [PATCH 00/19] Enable -Wshadow=local for kernel/sched Kees Cook
2022-03-02 18:43   ` Matthew Wilcox
2022-03-02 19:18     ` Peter Zijlstra
2024-04-16 21:15 ` Kees Cook
2024-04-17  0:29   ` Linus Torvalds
2024-04-17  0:50     ` Linus Torvalds
2024-04-17  0:52     ` Matthew Wilcox
2024-04-17 11:23       ` Ingo Molnar
2024-04-19 22:06       ` Kees Cook

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