From 4fb419b216245297312aeafcadf8b4e852a6cfe4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Mon, 8 Jul 2019 15:53:07 +0300
Subject: drm: Add drm_modeset_lock_assert_held()
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Git-commit: 4fb419b216245297312aeafcadf8b4e852a6cfe4
Patch-mainline: v5.5-rc1
References: bsc#1152489
Add a small wrapper around lockdep_assert_held() to make
it a bit more conventinet to use with modeset locks.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190708125325.16576-2-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
include/drm/drm_modeset_lock.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/drm/drm_modeset_lock.h b/include/drm/drm_modeset_lock.h
index 7b8841065b11..4fc9a43ac45a 100644
--- a/include/drm/drm_modeset_lock.h
+++ b/include/drm/drm_modeset_lock.h
@@ -114,6 +114,15 @@ static inline bool drm_modeset_is_locked(struct drm_modeset_lock *lock)
return ww_mutex_is_locked(&lock->mutex);
}
+/**
+ * drm_modeset_lock_assert_held - equivalent to lockdep_assert_held()
+ * @lock: lock to check
+ */
+static inline void drm_modeset_lock_assert_held(struct drm_modeset_lock *lock)
+{
+ lockdep_assert_held(&lock->mutex.base);
+}
+
int drm_modeset_lock(struct drm_modeset_lock *lock,
struct drm_modeset_acquire_ctx *ctx);
int __must_check drm_modeset_lock_single_interruptible(struct drm_modeset_lock *lock);
--
2.28.0