From: alexandre.belloni@bootlin.com
To: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 01/19] rtc: introduce rtc_device.ops_lock guard()
Date: Mon, 19 Oct 2026 23:18:02 +0200 [thread overview]
Message-ID: <20261019211827.126262-1-alexandre.belloni@bootlin.com> (raw)
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Add guard class for rtc_device.ops_lock locks. This allows to simplify
error handling in interrupt handlers.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
include/linux/rtc.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 0f43b5027235..169d93520dbd 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -168,6 +168,9 @@ struct rtc_device {
#define rtc_lock(d) mutex_lock(&d->ops_lock)
#define rtc_unlock(d) mutex_unlock(&d->ops_lock)
+DEFINE_GUARD(rtc_ops, struct rtc_device *, mutex_lock(&_T->ops_lock),
+ mutex_unlock(&_T->ops_lock))
+
/* useful timestamps */
#define RTC_TIMESTAMP_BEGIN_0000 -62167219200ULL /* 0000-01-01 00:00:00 */
#define RTC_TIMESTAMP_BEGIN_1900 -2208988800LL /* 1900-01-01 00:00:00 */
--
2.56.0
next reply other threads:[~2026-10-19 21:18 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-19 21:18 alexandre.belloni [this message]
2026-10-19 21:18 ` [PATCH 02/19] rtc: ac100: use guard alexandre.belloni
2026-10-19 21:18 ` [PATCH 03/19] rtc: asm9260: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 04/19] rtc: atcrtc100: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 05/19] rtc: ds1305: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 06/19] rtc: ds1307: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 07/19] rtc: ds1343: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 08/19] rtc: ds1685: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 09/19] rtc: ds3232: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 10/19] rtc: hym8563: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 11/19] rtc: m41t80: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 12/19] rtc: mcp795: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 13/19] rtc: nct6694: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 14/19] rtc: pcf2123: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 15/19] rtc: rv3029c2: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 16/19] rtc: rx8010: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 17/19] rtc: rx8025: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 18/19] rtc: stm32: " alexandre.belloni
2026-10-19 21:18 ` [PATCH 19/19] rtc: abx80x: simplify locking alexandre.belloni
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