[PATCH 2/8] drm/xe: covert sysfs over to devm

[Matthew Auld]

Hotunplugging the device seems to result in stuff like:

kobject_add_internal failed for tile0 with -EEXIST, don't try to
register things with the same name in the same directory.

We only remove the sysfs as part of drmm, however that is tied to the
lifetime of the driver instance and not the device underneath. Attempt
to fix by using devm for all of the remaining sysfs stuff related to the
device.

Closes: https://gitlab.freedesktop.org/dt srm/xe/kernel/-/issues/1667
Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/xe/xe_gt_ccs_mode.c           |  4 ++--
 drivers/gpu/drm/xe/xe_gt_freq.c               |  4 ++--
 drivers/gpu/drm/xe/xe_gt_idle.c               |  4 ++--
 drivers/gpu/drm/xe/xe_gt_sysfs.c              |  4 ++--
 drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c     |  4 ++--
 drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c | 12 ++++++------
 drivers/gpu/drm/xe/xe_tile_sysfs.c            |  4 ++--
 drivers/gpu/drm/xe/xe_vram_freq.c             |  4 ++--
 8 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_gt_ccs_mode.c b/drivers/gpu/drm/xe/xe_gt_ccs_mode.c
index 396aeb5b9924..890da8870b0d 100644
--- a/drivers/gpu/drm/xe/xe_gt_ccs_mode.c
+++ b/drivers/gpu/drm/xe/xe_gt_ccs_mode.c
@@ -150,7 +150,7 @@ static const struct attribute *gt_ccs_mode_attrs[] = {
 	NULL,
 };
 
-static void xe_gt_ccs_mode_sysfs_fini(struct drm_device *drm, void *arg)
+static void xe_gt_ccs_mode_sysfs_fini(void *arg)
 {
 	struct xe_gt *gt = arg;
 
@@ -182,5 +182,5 @@ int xe_gt_ccs_mode_sysfs_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
-	return drmm_add_action_or_reset(&xe->drm, xe_gt_ccs_mode_sysfs_fini, gt);
+	return devm_add_action_or_reset(xe->drm.dev, xe_gt_ccs_mode_sysfs_fini, gt);
 }
diff --git a/drivers/gpu/drm/xe/xe_gt_freq.c b/drivers/gpu/drm/xe/xe_gt_freq.c
index 855de40e40ea..e0305942644c 100644
--- a/drivers/gpu/drm/xe/xe_gt_freq.c
+++ b/drivers/gpu/drm/xe/xe_gt_freq.c
@@ -209,7 +209,7 @@ static const struct attribute *freq_attrs[] = {
 	NULL
 };
 
-static void freq_fini(struct drm_device *drm, void *arg)
+static void freq_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -237,7 +237,7 @@ int xe_gt_freq_init(struct xe_gt *gt)
 	if (!gt->freq)
 		return -ENOMEM;
 
-	err = drmm_add_action_or_reset(&xe->drm, freq_fini, gt->freq);
+	err = devm_add_action(xe->drm.dev, freq_fini, gt->freq);
 	if (err)
 		return err;
 
diff --git a/drivers/gpu/drm/xe/xe_gt_idle.c b/drivers/gpu/drm/xe/xe_gt_idle.c
index 8fc0f3f6ecc5..9e907033f32b 100644
--- a/drivers/gpu/drm/xe/xe_gt_idle.c
+++ b/drivers/gpu/drm/xe/xe_gt_idle.c
@@ -144,7 +144,7 @@ static const struct attribute *gt_idle_attrs[] = {
 	NULL,
 };
 
-static void gt_idle_sysfs_fini(struct drm_device *drm, void *arg)
+static void gt_idle_sysfs_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -181,7 +181,7 @@ int xe_gt_idle_sysfs_init(struct xe_gt_idle *gtidle)
 		return err;
 	}
 
-	return drmm_add_action_or_reset(&xe->drm, gt_idle_sysfs_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, gt_idle_sysfs_fini, kobj);
 }
 
 void xe_gt_idle_enable_c6(struct xe_gt *gt)
diff --git a/drivers/gpu/drm/xe/xe_gt_sysfs.c b/drivers/gpu/drm/xe/xe_gt_sysfs.c
index 1e5971072bc8..a05c3699e8b9 100644
--- a/drivers/gpu/drm/xe/xe_gt_sysfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_sysfs.c
@@ -22,7 +22,7 @@ static const struct kobj_type xe_gt_sysfs_kobj_type = {
 	.sysfs_ops = &kobj_sysfs_ops,
 };
 
-static void gt_sysfs_fini(struct drm_device *drm, void *arg)
+static void gt_sysfs_fini(void *arg)
 {
 	struct xe_gt *gt = arg;
 
@@ -51,5 +51,5 @@ int xe_gt_sysfs_init(struct xe_gt *gt)
 
 	gt->sysfs = &kg->base;
 
-	return drmm_add_action_or_reset(&xe->drm, gt_sysfs_fini, gt);
+	return devm_add_action(xe->drm.dev, gt_sysfs_fini, gt);
 }
diff --git a/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c b/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c
index fbe21a8599ca..c9e04151286d 100644
--- a/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c
+++ b/drivers/gpu/drm/xe/xe_gt_throttle_sysfs.c
@@ -229,7 +229,7 @@ static const struct attribute_group throttle_group_attrs = {
 	.attrs = throttle_attrs,
 };
 
-static void gt_throttle_sysfs_fini(struct drm_device *drm, void *arg)
+static void gt_throttle_sysfs_fini(void *arg)
 {
 	struct xe_gt *gt = arg;
 
@@ -245,5 +245,5 @@ int xe_gt_throttle_sysfs_init(struct xe_gt *gt)
 	if (err)
 		return err;
 
-	return drmm_add_action_or_reset(&xe->drm, gt_throttle_sysfs_fini, gt);
+	return devm_add_action_or_reset(xe->drm.dev, gt_throttle_sysfs_fini, gt);
 }
diff --git a/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c b/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c
index 844ec68cbbb8..258078a6b461 100644
--- a/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c
+++ b/drivers/gpu/drm/xe/xe_hw_engine_class_sysfs.c
@@ -492,7 +492,7 @@ static const struct attribute * const files[] = {
 	NULL
 };
 
-static void kobj_xe_hw_engine_class_fini(struct drm_device *drm, void *arg)
+static void kobj_xe_hw_engine_class_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -517,7 +517,7 @@ kobj_xe_hw_engine_class(struct xe_device *xe, struct kobject *parent, const char
 	}
 	keclass->xe = xe;
 
-	err = drmm_add_action_or_reset(&xe->drm, kobj_xe_hw_engine_class_fini,
+	err = devm_add_action_or_reset(xe->drm.dev, kobj_xe_hw_engine_class_fini,
 				       &keclass->base);
 	if (err)
 		return NULL;
@@ -525,7 +525,7 @@ kobj_xe_hw_engine_class(struct xe_device *xe, struct kobject *parent, const char
 	return keclass;
 }
 
-static void hw_engine_class_defaults_fini(struct drm_device *drm, void *arg)
+static void hw_engine_class_defaults_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -552,7 +552,7 @@ static int xe_add_hw_engine_class_defaults(struct xe_device *xe,
 	if (err)
 		goto err_object;
 
-	return drmm_add_action_or_reset(&xe->drm, hw_engine_class_defaults_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, hw_engine_class_defaults_fini, kobj);
 
 err_object:
 	kobject_put(kobj);
@@ -611,7 +611,7 @@ static const struct kobj_type xe_hw_engine_sysfs_kobj_type = {
 	.sysfs_ops = &xe_hw_engine_class_sysfs_ops,
 };
 
-static void hw_engine_class_sysfs_fini(struct drm_device *drm, void *arg)
+static void hw_engine_class_sysfs_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -698,7 +698,7 @@ int xe_hw_engine_class_sysfs_init(struct xe_gt *gt)
 			goto err_object;
 	}
 
-	return drmm_add_action_or_reset(&xe->drm, hw_engine_class_sysfs_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, hw_engine_class_sysfs_fini, kobj);
 
 err_object:
 	kobject_put(kobj);
diff --git a/drivers/gpu/drm/xe/xe_tile_sysfs.c b/drivers/gpu/drm/xe/xe_tile_sysfs.c
index 64661403afcd..b804234a6551 100644
--- a/drivers/gpu/drm/xe/xe_tile_sysfs.c
+++ b/drivers/gpu/drm/xe/xe_tile_sysfs.c
@@ -22,7 +22,7 @@ static const struct kobj_type xe_tile_sysfs_kobj_type = {
 	.sysfs_ops = &kobj_sysfs_ops,
 };
 
-static void tile_sysfs_fini(struct drm_device *drm, void *arg)
+static void tile_sysfs_fini(void *arg)
 {
 	struct xe_tile *tile = arg;
 
@@ -55,5 +55,5 @@ int xe_tile_sysfs_init(struct xe_tile *tile)
 	if (err)
 		return err;
 
-	return drmm_add_action_or_reset(&xe->drm, tile_sysfs_fini, tile);
+	return devm_add_action_or_reset(xe->drm.dev, tile_sysfs_fini, tile);
 }
diff --git a/drivers/gpu/drm/xe/xe_vram_freq.c b/drivers/gpu/drm/xe/xe_vram_freq.c
index 3e21ddc6e60c..99ff95e408e0 100644
--- a/drivers/gpu/drm/xe/xe_vram_freq.c
+++ b/drivers/gpu/drm/xe/xe_vram_freq.c
@@ -87,7 +87,7 @@ static const struct attribute_group freq_group_attrs = {
 	.attrs = freq_attrs,
 };
 
-static void vram_freq_sysfs_fini(struct drm_device *drm, void *arg)
+static void vram_freq_sysfs_fini(void *arg)
 {
 	struct kobject *kobj = arg;
 
@@ -122,5 +122,5 @@ int xe_vram_freq_sysfs_init(struct xe_tile *tile)
 		return err;
 	}
 
-	return drmm_add_action_or_reset(&xe->drm, vram_freq_sysfs_fini, kobj);
+	return devm_add_action_or_reset(xe->drm.dev, vram_freq_sysfs_fini, kobj);
 }
-- 
2.44.0