From 0c9b3c439120273194970b572c3c041a02ab054e Mon Sep 17 00:00:00 2001
From: Fernando Ramos <greenfoo@u92.eu>
Date: Fri, 24 Sep 2021 08:43:08 +0200
Subject: drm: cleanup: drm_modeset_lock_all_ctx() -->
DRM_MODESET_LOCK_ALL_BEGIN()
Git-commit: 21dde40902d2636f70766b3154931de57e1215e9
Patch-mainline: v5.16-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
As requested in Documentation/gpu/todo.rst, replace the boilerplate code
surrounding drm_modeset_lock_all_ctx() with DRM_MODESET_LOCK_ALL_BEGIN()
and DRM_MODESET_LOCK_ALL_END()
Signed-off-by: Fernando Ramos <greenfoo@u92.eu>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210924064324.229457-2-greenfoo@u92.eu
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/drm_client_modeset.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
index ced09c7c06f9..5f5184f071ed 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -574,6 +574,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
int num_connectors_detected = 0;
int num_tiled_conns = 0;
struct drm_modeset_acquire_ctx ctx;
+ int err;
if (!drm_drv_uses_atomic_modeset(dev))
return false;
@@ -585,10 +586,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
if (!save_enabled)
return false;
- drm_modeset_acquire_init(&ctx, 0);
-
- while (drm_modeset_lock_all_ctx(dev, &ctx) != 0)
- drm_modeset_backoff(&ctx);
+ DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, err);
memcpy(save_enabled, enabled, count);
mask = GENMASK(count - 1, 0);
@@ -743,8 +741,7 @@ static bool drm_client_firmware_config(struct drm_client_dev *client,
ret = false;
}
- drm_modeset_drop_locks(&ctx);
- drm_modeset_acquire_fini(&ctx);
+ DRM_MODESET_LOCK_ALL_END(dev, ctx, err);
kfree(save_enabled);
return ret;
--
2.38.1