[src/trunk]: src/sys/external/bsd/drm2/dist/drm Make it build.

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/158108868b22
branches:  trunk
changeset: 1027840:158108868b22
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 00:56:01 2021 +0000

description:
Make it build.

- mutex_init/destroy -> linux_mutex_init/destroy
- refcount_dec_and_test -> kref_put
  (until we implement Linux refcount(9))
- LIST_HEAD(x) -> struct list_head x = LIST_HEAD_INIT(x)

diffstat:

 sys/external/bsd/drm2/dist/drm/drm_connector.c |  17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)

diffs (61 lines):

diff -r 4689b47d982e -r 158108868b22 sys/external/bsd/drm2/dist/drm/drm_connector.c
--- a/sys/external/bsd/drm2/dist/drm/drm_connector.c    Sun Dec 19 00:55:51 2021 +0000
+++ b/sys/external/bsd/drm2/dist/drm/drm_connector.c    Sun Dec 19 00:56:01 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: drm_connector.c,v 1.2 2021/12/18 23:44:57 riastradh Exp $      */
+/*     $NetBSD: drm_connector.c,v 1.3 2021/12/19 00:56:01 riastradh Exp $      */
 
 /*
  * Copyright (c) 2016 Intel Corporation
@@ -23,7 +23,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: drm_connector.c,v 1.2 2021/12/18 23:44:57 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: drm_connector.c,v 1.3 2021/12/19 00:56:01 riastradh Exp $");
 
 #include <drm/drm_connector.h>
 #include <drm/drm_edid.h>
@@ -256,7 +256,11 @@
 
        INIT_LIST_HEAD(&connector->probed_modes);
        INIT_LIST_HEAD(&connector->modes);
+#ifdef __NetBSD__
+       linux_mutex_init(&connector->mutex);
+#else
        mutex_init(&connector->mutex);
+#endif
        connector->edid_blob_ptr = NULL;
        connector->tile_blob_ptr = NULL;
        connector->status = connector_status_unknown;
@@ -469,7 +473,11 @@
                connector->funcs->atomic_destroy_state(connector,
                                                       connector->state);
 
+#ifdef __NetBSD__
+       linux_mutex_destroy(&connector->mutex);
+#else
        mutex_destroy(&connector->mutex);
+#endif
 
        memset(connector, 0, sizeof(*connector));
 }
@@ -659,7 +667,8 @@
 
        lockdep_assert_held(&config->connector_list_lock);
 
-       if (!refcount_dec_and_test(&conn->base.refcount.refcount))
+       /* XXX sketchy function pointer cast */
+       if (!kref_put(&conn->base.refcount, (void (*)(struct kref *))voidop))
                return;
 
        llist_add(&conn->free_node, &config->connector_free_list);
@@ -2196,7 +2205,7 @@
        struct drm_mode_modeinfo u_mode;
        struct drm_mode_modeinfo __user *mode_ptr;
        uint32_t __user *encoder_ptr;
-       LIST_HEAD(export_list);
+       struct list_head export_list = LIST_HEAD_INIT(export_list);
 
        if (!drm_core_check_feature(dev, DRIVER_MODESET))
                return -EOPNOTSUPP;