Many DRM drivers implement an encoder with an empty implementation. This
patchset adds drm_simple_encoder_init() and drm_simple_encoder_create(),
which can be used by drivers instead. Except for the destroy callback, the
simple encoder's implementation is empty.
The patchset also converts 4 encoder instances to use the simple-encoder
helpers. But there are at least 11 other drivers which can use the helper
and I think I did not examine all drivers yet.
The patchset was smoke-tested on mgag200 by running the fbdev console
and Gnome on X11.
Thomas Zimmermann (6):
drm: Move initialization of encoder into an internal function
drm: Add drm_simple_encoder_{init,create}()
drm/ast: Use simple encoder
drm/mgag200: Use simple encoder
drm/qxl: Use simple encoder
drm/simple-pipe: Use simple encoder
drivers/gpu/drm/ast/ast_drv.h | 6 +-
drivers/gpu/drm/ast/ast_mode.c | 25 +---
drivers/gpu/drm/drm_encoder.c | 190 +++++++++++++++++++++---
drivers/gpu/drm/drm_simple_kms_helper.c | 8 +-
drivers/gpu/drm/mgag200/mgag200_drv.h | 7 -
drivers/gpu/drm/mgag200/mgag200_mode.c | 60 +-------
drivers/gpu/drm/qxl/qxl_display.c | 17 +--
include/drm/drm_encoder.h | 10 ++
8 files changed, 191 insertions(+), 132 deletions(-)
--
2.25.0
Thomas Zimmermann
2020-Feb-07 08:41 UTC
[PATCH 1/6] drm: Move initialization of encoder into an internal function
Moving encoder init code into an internal function, so it can be reused.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/drm_encoder.c | 78 +++++++++++++++++++++++------------
1 file changed, 52 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c
index e555281f43d4..ffe691a1bf34 100644
--- a/drivers/gpu/drm/drm_encoder.c
+++ b/drivers/gpu/drm/drm_encoder.c
@@ -91,6 +91,47 @@ void drm_encoder_unregister_all(struct drm_device *dev)
}
}
+static int __drm_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ const struct drm_encoder_funcs *funcs,
+ int encoder_type, char *name)
+{
+ int ret;
+
+ /* encoder index is used with 32-bit bitmasks */
+ if (WARN_ON(dev->mode_config.num_encoder >= 32))
+ return -EINVAL;
+
+ ret = drm_mode_object_add(dev, &encoder->base,
DRM_MODE_OBJECT_ENCODER);
+ if (ret)
+ return ret;
+
+ encoder->dev = dev;
+ encoder->encoder_type = encoder_type;
+ encoder->funcs = funcs;
+ if (name) {
+ encoder->name = name;
+ } else {
+ encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
+ drm_encoder_enum_list[encoder_type].name,
+ encoder->base.id);
+ if (!encoder->name) {
+ ret = -ENOMEM;
+ goto out_put;
+ }
+ }
+
+ INIT_LIST_HEAD(&encoder->bridge_chain);
+ list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
+ encoder->index = dev->mode_config.num_encoder++;
+
+out_put:
+ if (ret)
+ drm_mode_object_unregister(dev, &encoder->base);
+
+ return ret;
+}
+
/**
* drm_encoder_init - Init a preallocated encoder
* @dev: drm device
@@ -111,43 +152,28 @@ int drm_encoder_init(struct drm_device *dev,
const struct drm_encoder_funcs *funcs,
int encoder_type, const char *name, ...)
{
+ char *namestr = NULL;
int ret;
- /* encoder index is used with 32bit bitmasks */
- if (WARN_ON(dev->mode_config.num_encoder >= 32))
- return -EINVAL;
-
- ret = drm_mode_object_add(dev, &encoder->base,
DRM_MODE_OBJECT_ENCODER);
- if (ret)
- return ret;
-
- encoder->dev = dev;
- encoder->encoder_type = encoder_type;
- encoder->funcs = funcs;
if (name) {
va_list ap;
va_start(ap, name);
- encoder->name = kvasprintf(GFP_KERNEL, name, ap);
+ namestr = kvasprintf(GFP_KERNEL, name, ap);
va_end(ap);
- } else {
- encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
- drm_encoder_enum_list[encoder_type].name,
- encoder->base.id);
- }
- if (!encoder->name) {
- ret = -ENOMEM;
- goto out_put;
+ if (!namestr)
+ return -ENOMEM;
}
- INIT_LIST_HEAD(&encoder->bridge_chain);
- list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
- encoder->index = dev->mode_config.num_encoder++;
-
-out_put:
+ ret = __drm_encoder_init(dev, encoder, funcs, encoder_type, namestr);
if (ret)
- drm_mode_object_unregister(dev, &encoder->base);
+ goto err_kfree;
+
+ return 0;
+err_kfree:
+ if (name)
+ kfree(namestr);
return ret;
}
EXPORT_SYMBOL(drm_encoder_init);
--
2.25.0
Thomas Zimmermann
2020-Feb-07 08:41 UTC
[PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
The simple-encoder helpers initialize an encoder with an empty
implementation. This covers the requirements of most of the existing
DRM drivers. A call to drm_simple_encoder_create() allocates and
initializes an encoder instance, a call to drm_simple_encoder_init()
initializes a pre-allocated instance.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/drm_encoder.c | 116 ++++++++++++++++++++++++++++++++++
include/drm/drm_encoder.h | 10 +++
2 files changed, 126 insertions(+)
diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c
index ffe691a1bf34..1a65cab1f310 100644
--- a/drivers/gpu/drm/drm_encoder.c
+++ b/drivers/gpu/drm/drm_encoder.c
@@ -178,6 +178,122 @@ int drm_encoder_init(struct drm_device *dev,
}
EXPORT_SYMBOL(drm_encoder_init);
+static const struct drm_encoder_funcs drm_simple_encoder_funcs_cleanup = {
+ .destroy = drm_encoder_cleanup,
+};
+
+/**
+ * drm_simple_encoder_init - Init a preallocated encoder
+ * @dev: drm device
+ * @funcs: callbacks for this encoder
+ * @encoder_type: user visible type of the encoder
+ * @name: printf style format string for the encoder name, or NULL
+ * for default name
+ *
+ * Initialises a preallocated encoder that has no further functionality. The
+ * encoder will be released automatically.
+ *
+ * Returns:
+ * Zero on success, error code on failure.
+ */
+int drm_simple_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ int encoder_type, const char *name, ...)
+{
+ char *namestr = NULL;
+ int ret;
+
+ if (name) {
+ va_list ap;
+
+ va_start(ap, name);
+ namestr = kvasprintf(GFP_KERNEL, name, ap);
+ va_end(ap);
+ if (!namestr)
+ return -ENOMEM;
+ }
+
+ ret = __drm_encoder_init(dev, encoder,
+ &drm_simple_encoder_funcs_cleanup,
+ encoder_type, namestr);
+ if (ret)
+ goto err_kfree;
+
+ return 0;
+
+err_kfree:
+ if (name)
+ kfree(namestr);
+ return ret;
+}
+EXPORT_SYMBOL(drm_simple_encoder_init);
+
+static void drm_encoder_destroy(struct drm_encoder *encoder)
+{
+ struct drm_device *dev = encoder->dev;
+
+ drm_encoder_cleanup(encoder);
+ devm_kfree(dev->dev, encoder);
+}
+
+static const struct drm_encoder_funcs drm_simple_encoder_funcs_destroy = {
+ .destroy = drm_encoder_destroy,
+};
+
+/**
+ * drm_simple_encoder_create - Allocate and initialize an encoder
+ * @dev: drm device
+ * @encoder_type: user visible type of the encoder
+ * @name: printf style format string for the encoder name, or NULL for
+ * default name
+ *
+ * Allocates and initialises an encoder that has no further functionality. The
+ * encoder will be released automatically.
+ *
+ * Returns:
+ * The encoder on success, a pointer-encoder error code on failure.
+ */
+struct drm_encoder *drm_simple_encoder_create(struct drm_device *dev,
+ int encoder_type,
+ const char *name, ...)
+{
+ char *namestr = NULL;
+ struct drm_encoder *encoder;
+ int ret;
+
+ encoder = devm_kzalloc(dev->dev, sizeof(*encoder), GFP_KERNEL);
+ if (!encoder)
+ return ERR_PTR(-ENOMEM);
+
+ if (name) {
+ va_list ap;
+
+ va_start(ap, name);
+ namestr = kvasprintf(GFP_KERNEL, name, ap);
+ va_end(ap);
+ if (!namestr) {
+ ret = -ENOMEM;
+ goto err_devm_kfree;
+ }
+ }
+
+ ret = __drm_encoder_init(dev, encoder,
+ &drm_simple_encoder_funcs_destroy,
+ encoder_type, namestr);
+ if (ret)
+ goto err_kfree;
+
+ return encoder;
+
+err_kfree:
+ if (name)
+ kfree(namestr);
+err_devm_kfree:
+ devm_kfree(dev->dev, encoder);
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL(drm_simple_encoder_create);
+
/**
* drm_encoder_cleanup - cleans up an initialised encoder
* @encoder: encoder to cleanup
diff --git a/include/drm/drm_encoder.h b/include/drm/drm_encoder.h
index 5623994b6e9e..0214f6cf9de6 100644
--- a/include/drm/drm_encoder.h
+++ b/include/drm/drm_encoder.h
@@ -190,6 +190,16 @@ int drm_encoder_init(struct drm_device *dev,
const struct drm_encoder_funcs *funcs,
int encoder_type, const char *name, ...);
+__printf(4, 5)
+int drm_simple_encoder_init(struct drm_device *dev,
+ struct drm_encoder *encoder,
+ int encoder_type, const char *name, ...);
+
+__printf(3, 4)
+struct drm_encoder *drm_simple_encoder_create(struct drm_device *dev,
+ int encoder_type,
+ const char *name, ...);
+
/**
* drm_encoder_index - find the index of a registered encoder
* @encoder: encoder to find index for
--
2.25.0
The ast driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/ast/ast_drv.h | 6 +-----
drivers/gpu/drm/ast/ast_mode.c | 25 ++++++++-----------------
2 files changed, 9 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index f5d8780776ae..656d591b154b 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -121,6 +121,7 @@ struct ast_private {
unsigned int next_index;
} cursor;
+ struct drm_encoder encoder;
struct drm_plane primary_plane;
struct drm_plane cursor_plane;
@@ -238,13 +239,8 @@ struct ast_crtc {
u8 offset_x, offset_y;
};
-struct ast_encoder {
- struct drm_encoder base;
-};
-
#define to_ast_crtc(x) container_of(x, struct ast_crtc, base)
#define to_ast_connector(x) container_of(x, struct ast_connector, base)
-#define to_ast_encoder(x) container_of(x, struct ast_encoder, base)
struct ast_vbios_stdtable {
u8 misc;
diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 562ea6d9df13..60facaa152ac 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -968,28 +968,19 @@ static int ast_crtc_init(struct drm_device *dev)
* Encoder
*/
-static void ast_encoder_destroy(struct drm_encoder *encoder)
-{
- drm_encoder_cleanup(encoder);
- kfree(encoder);
-}
-
-static const struct drm_encoder_funcs ast_enc_funcs = {
- .destroy = ast_encoder_destroy,
-};
-
static int ast_encoder_init(struct drm_device *dev)
{
- struct ast_encoder *ast_encoder;
+ struct ast_private *ast = dev->dev_private;
+ struct drm_encoder *encoder = &ast->encoder;
+ int ret;
- ast_encoder = kzalloc(sizeof(struct ast_encoder), GFP_KERNEL);
- if (!ast_encoder)
- return -ENOMEM;
+ ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_DAC,
+ NULL);
+ if (ret)
+ return ret;
- drm_encoder_init(dev, &ast_encoder->base, &ast_enc_funcs,
- DRM_MODE_ENCODER_DAC, NULL);
+ encoder->possible_crtcs = 1;
- ast_encoder->base.possible_crtcs = 1;
return 0;
}
--
2.25.0
The mgag200 driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/mgag200/mgag200_drv.h | 7 ---
drivers/gpu/drm/mgag200/mgag200_mode.c | 60 +-------------------------
2 files changed, 2 insertions(+), 65 deletions(-)
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h
b/drivers/gpu/drm/mgag200/mgag200_drv.h
index aa32aad222c2..9bb9e8e14539 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -95,7 +95,6 @@
#define MATROX_DPMS_CLEARED (-1)
#define to_mga_crtc(x) container_of(x, struct mga_crtc, base)
-#define to_mga_encoder(x) container_of(x, struct mga_encoder, base)
#define to_mga_connector(x) container_of(x, struct mga_connector, base)
struct mga_crtc {
@@ -110,12 +109,6 @@ struct mga_mode_info {
struct mga_crtc *crtc;
};
-struct mga_encoder {
- struct drm_encoder base;
- int last_dpms;
-};
-
-
struct mga_i2c_chan {
struct i2c_adapter adapter;
struct drm_device *dev;
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c
b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 62a8e9ccb16d..d8f1a552f8ac 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1449,72 +1449,16 @@ static void mga_crtc_init(struct mga_device *mdev)
drm_crtc_helper_add(&mga_crtc->base, &mga_helper_funcs);
}
-/*
- * The encoder comes after the CRTC in the output pipeline, but before
- * the connector. It's responsible for ensuring that the digital
- * stream is appropriately converted into the output format. Setup is
- * very simple in this case - all we have to do is inform qemu of the
- * colour depth in order to ensure that it displays appropriately
- */
-
-/*
- * These functions are analagous to those in the CRTC code, but are intended
- * to handle any encoder-specific limitations
- */
-static void mga_encoder_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
-
-}
-
-static void mga_encoder_dpms(struct drm_encoder *encoder, int state)
-{
- return;
-}
-
-static void mga_encoder_prepare(struct drm_encoder *encoder)
-{
-}
-
-static void mga_encoder_commit(struct drm_encoder *encoder)
-{
-}
-
-static void mga_encoder_destroy(struct drm_encoder *encoder)
-{
- struct mga_encoder *mga_encoder = to_mga_encoder(encoder);
- drm_encoder_cleanup(encoder);
- kfree(mga_encoder);
-}
-
-static const struct drm_encoder_helper_funcs mga_encoder_helper_funcs = {
- .dpms = mga_encoder_dpms,
- .mode_set = mga_encoder_mode_set,
- .prepare = mga_encoder_prepare,
- .commit = mga_encoder_commit,
-};
-
-static const struct drm_encoder_funcs mga_encoder_encoder_funcs = {
- .destroy = mga_encoder_destroy,
-};
-
static struct drm_encoder *mga_encoder_init(struct drm_device *dev)
{
struct drm_encoder *encoder;
- struct mga_encoder *mga_encoder;
- mga_encoder = kzalloc(sizeof(struct mga_encoder), GFP_KERNEL);
- if (!mga_encoder)
+ encoder = drm_simple_encoder_create(dev, DRM_MODE_ENCODER_DAC, NULL);
+ if (IS_ERR(encoder))
return NULL;
- encoder = &mga_encoder->base;
encoder->possible_crtcs = 0x1;
- drm_encoder_init(dev, encoder, &mga_encoder_encoder_funcs,
- DRM_MODE_ENCODER_DAC, NULL);
- drm_encoder_helper_add(encoder, &mga_encoder_helper_funcs);
-
return encoder;
}
--
2.25.0
The qxl driver uses an empty implementation for its encoder. Replace
the code with the generic simple encoder.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/qxl/qxl_display.c | 17 ++---------------
1 file changed, 2 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_display.c
b/drivers/gpu/drm/qxl/qxl_display.c
index ab4f8dd00400..fc71f7d9436a 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -1007,9 +1007,6 @@ static struct drm_encoder *qxl_best_encoder(struct
drm_connector *connector)
return &qxl_output->enc;
}
-static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
-};
-
static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
.get_modes = qxl_conn_get_modes,
.mode_valid = qxl_conn_mode_valid,
@@ -1059,15 +1056,6 @@ static const struct drm_connector_funcs
qxl_connector_funcs = {
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
-static void qxl_enc_destroy(struct drm_encoder *encoder)
-{
- drm_encoder_cleanup(encoder);
-}
-
-static const struct drm_encoder_funcs qxl_enc_funcs = {
- .destroy = qxl_enc_destroy,
-};
-
static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device
*qdev)
{
if (qdev->hotplug_mode_update_property)
@@ -1098,15 +1086,14 @@ static int qdev_output_init(struct drm_device *dev, int
num_output)
drm_connector_init(dev, &qxl_output->base,
&qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
- drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
- DRM_MODE_ENCODER_VIRTUAL, NULL);
+ drm_simple_encoder_init(dev, qxl_output->enc, DRM_MODE_ENCODER_VIRTUAL,
+ NULL);
/* we get HPD via client monitors config */
connector->polled = DRM_CONNECTOR_POLL_HPD;
encoder->possible_crtcs = 1 << num_output;
drm_connector_attach_encoder(&qxl_output->base,
&qxl_output->enc);
- drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
drm_object_attach_property(&connector->base,
--
2.25.0
The simple-pipe helpers use an empty implementation for the encoder.
Replace the code with the generic simple encoder.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
drivers/gpu/drm/drm_simple_kms_helper.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c
b/drivers/gpu/drm/drm_simple_kms_helper.c
index 15fb516ae2d8..e16606b3ee20 100644
--- a/drivers/gpu/drm/drm_simple_kms_helper.c
+++ b/drivers/gpu/drm/drm_simple_kms_helper.c
@@ -28,10 +28,6 @@
* encoder drivers.
*/
-static const struct drm_encoder_funcs drm_simple_kms_encoder_funcs = {
- .destroy = drm_encoder_cleanup,
-};
-
static enum drm_mode_status
drm_simple_kms_crtc_mode_valid(struct drm_crtc *crtc,
const struct drm_display_mode *mode)
@@ -288,8 +284,8 @@ int drm_simple_display_pipe_init(struct drm_device *dev,
return ret;
encoder->possible_crtcs = drm_crtc_mask(crtc);
- ret = drm_encoder_init(dev, encoder, &drm_simple_kms_encoder_funcs,
- DRM_MODE_ENCODER_NONE, NULL);
+ ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_NONE,
+ NULL);
if (ret || !connector)
return ret;
--
2.25.0
Gerd Hoffmann
2020-Feb-07 10:33 UTC
[PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
> +static const struct drm_encoder_funcs drm_simple_encoder_funcs_cleanup = { > + .destroy = drm_encoder_cleanup, > +}; > + > +/** > + * drm_simple_encoder_init - Init a preallocated encoder > + * @dev: drm device > + * @funcs: callbacks for this encoder > + * @encoder_type: user visible type of the encoder > + * @name: printf style format string for the encoder name, or NULL > + * for default name > + * > + * Initialises a preallocated encoder that has no further functionality. The > + * encoder will be released automatically. > + * > + * Returns: > + * Zero on success, error code on failure. > + */ > +int drm_simple_encoder_init(struct drm_device *dev, > + struct drm_encoder *encoder, > + int encoder_type, const char *name, ...)How about using #define drm_simple_encoder_init(dev, type, name, ...) \ drm_encoder_init(dev, drm_simple_encoder_funcs_cleanup, type, name, __VA_ARGS__) instead ? cheers, Gerd
Daniel Vetter
2020-Feb-07 13:37 UTC
[PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
On Fri, Feb 07, 2020 at 09:41:31AM +0100, Thomas Zimmermann wrote:> The simple-encoder helpers initialize an encoder with an empty > implementation. This covers the requirements of most of the existing > DRM drivers. A call to drm_simple_encoder_create() allocates and > initializes an encoder instance, a call to drm_simple_encoder_init() > initializes a pre-allocated instance. > > Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>This has quick a bit midlayer taste to it ... I think having this as a helper would be cleaner ... The other bit is drm_encoder->possible_crtcs. If we do create a helper for these, lets at least try to make them not suck too badly :-) Otherwise I guess it would be time to officially document what exactly possible_crtcs == 0 means from an uabi pov. -Daniel> --- > drivers/gpu/drm/drm_encoder.c | 116 ++++++++++++++++++++++++++++++++++ > include/drm/drm_encoder.h | 10 +++ > 2 files changed, 126 insertions(+) > > diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c > index ffe691a1bf34..1a65cab1f310 100644 > --- a/drivers/gpu/drm/drm_encoder.c > +++ b/drivers/gpu/drm/drm_encoder.c > @@ -178,6 +178,122 @@ int drm_encoder_init(struct drm_device *dev, > } > EXPORT_SYMBOL(drm_encoder_init); > > +static const struct drm_encoder_funcs drm_simple_encoder_funcs_cleanup = { > + .destroy = drm_encoder_cleanup, > +}; > + > +/** > + * drm_simple_encoder_init - Init a preallocated encoder > + * @dev: drm device > + * @funcs: callbacks for this encoder > + * @encoder_type: user visible type of the encoder > + * @name: printf style format string for the encoder name, or NULL > + * for default name > + * > + * Initialises a preallocated encoder that has no further functionality. The > + * encoder will be released automatically. > + * > + * Returns: > + * Zero on success, error code on failure. > + */ > +int drm_simple_encoder_init(struct drm_device *dev, > + struct drm_encoder *encoder, > + int encoder_type, const char *name, ...) > +{ > + char *namestr = NULL; > + int ret; > + > + if (name) { > + va_list ap; > + > + va_start(ap, name); > + namestr = kvasprintf(GFP_KERNEL, name, ap); > + va_end(ap); > + if (!namestr) > + return -ENOMEM; > + } > + > + ret = __drm_encoder_init(dev, encoder, > + &drm_simple_encoder_funcs_cleanup, > + encoder_type, namestr); > + if (ret) > + goto err_kfree; > + > + return 0; > + > +err_kfree: > + if (name) > + kfree(namestr); > + return ret; > +} > +EXPORT_SYMBOL(drm_simple_encoder_init); > + > +static void drm_encoder_destroy(struct drm_encoder *encoder) > +{ > + struct drm_device *dev = encoder->dev; > + > + drm_encoder_cleanup(encoder); > + devm_kfree(dev->dev, encoder); > +} > + > +static const struct drm_encoder_funcs drm_simple_encoder_funcs_destroy = { > + .destroy = drm_encoder_destroy, > +}; > + > +/** > + * drm_simple_encoder_create - Allocate and initialize an encoder > + * @dev: drm device > + * @encoder_type: user visible type of the encoder > + * @name: printf style format string for the encoder name, or NULL for > + * default name > + * > + * Allocates and initialises an encoder that has no further functionality. The > + * encoder will be released automatically. > + * > + * Returns: > + * The encoder on success, a pointer-encoder error code on failure. > + */ > +struct drm_encoder *drm_simple_encoder_create(struct drm_device *dev, > + int encoder_type, > + const char *name, ...) > +{ > + char *namestr = NULL; > + struct drm_encoder *encoder; > + int ret; > + > + encoder = devm_kzalloc(dev->dev, sizeof(*encoder), GFP_KERNEL); > + if (!encoder) > + return ERR_PTR(-ENOMEM); > + > + if (name) { > + va_list ap; > + > + va_start(ap, name); > + namestr = kvasprintf(GFP_KERNEL, name, ap); > + va_end(ap); > + if (!namestr) { > + ret = -ENOMEM; > + goto err_devm_kfree; > + } > + } > + > + ret = __drm_encoder_init(dev, encoder, > + &drm_simple_encoder_funcs_destroy, > + encoder_type, namestr); > + if (ret) > + goto err_kfree; > + > + return encoder; > + > +err_kfree: > + if (name) > + kfree(namestr); > +err_devm_kfree: > + devm_kfree(dev->dev, encoder); > + return ERR_PTR(ret); > +} > +EXPORT_SYMBOL(drm_simple_encoder_create); > + > /** > * drm_encoder_cleanup - cleans up an initialised encoder > * @encoder: encoder to cleanup > diff --git a/include/drm/drm_encoder.h b/include/drm/drm_encoder.h > index 5623994b6e9e..0214f6cf9de6 100644 > --- a/include/drm/drm_encoder.h > +++ b/include/drm/drm_encoder.h > @@ -190,6 +190,16 @@ int drm_encoder_init(struct drm_device *dev, > const struct drm_encoder_funcs *funcs, > int encoder_type, const char *name, ...); > > +__printf(4, 5) > +int drm_simple_encoder_init(struct drm_device *dev, > + struct drm_encoder *encoder, > + int encoder_type, const char *name, ...); > + > +__printf(3, 4) > +struct drm_encoder *drm_simple_encoder_create(struct drm_device *dev, > + int encoder_type, > + const char *name, ...); > + > /** > * drm_encoder_index - find the index of a registered encoder > * @encoder: encoder to find index for > -- > 2.25.0 >-- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
Noralf Trønnes
2020-Feb-07 14:36 UTC
[PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
Den 07.02.2020 09.41, skrev Thomas Zimmermann:> The simple-encoder helpers initialize an encoder with an empty > implementation. This covers the requirements of most of the existing > DRM drivers. A call to drm_simple_encoder_create() allocates and > initializes an encoder instance, a call to drm_simple_encoder_init() > initializes a pre-allocated instance. > > Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de> > --- > drivers/gpu/drm/drm_encoder.c | 116 ++++++++++++++++++++++++++++++++++ > include/drm/drm_encoder.h | 10 +++ > 2 files changed, 126 insertions(+) > > diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c<snip>> +/** > + * drm_simple_encoder_create - Allocate and initialize an encoder > + * @dev: drm device > + * @encoder_type: user visible type of the encoder > + * @name: printf style format string for the encoder name, or NULL for > + * default name > + * > + * Allocates and initialises an encoder that has no further functionality. The > + * encoder will be released automatically. > + * > + * Returns: > + * The encoder on success, a pointer-encoder error code on failure. > + */ > +struct drm_encoder *drm_simple_encoder_create(struct drm_device *dev, > + int encoder_type, > + const char *name, ...) > +{ > + char *namestr = NULL; > + struct drm_encoder *encoder; > + int ret; > + > + encoder = devm_kzalloc(dev->dev, sizeof(*encoder), GFP_KERNEL);The encoder can outlive the devres if the device is unbound when userspace has open fds, so you can't use devm_ here. Noralf.> + if (!encoder) > + return ERR_PTR(-ENOMEM); > + > + if (name) { > + va_list ap; > + > + va_start(ap, name); > + namestr = kvasprintf(GFP_KERNEL, name, ap); > + va_end(ap); > + if (!namestr) { > + ret = -ENOMEM; > + goto err_devm_kfree; > + } > + } > + > + ret = __drm_encoder_init(dev, encoder, > + &drm_simple_encoder_funcs_destroy, > + encoder_type, namestr); > + if (ret) > + goto err_kfree; > + > + return encoder; > + > +err_kfree: > + if (name) > + kfree(namestr); > +err_devm_kfree: > + devm_kfree(dev->dev, encoder); > + return ERR_PTR(ret); > +} > +EXPORT_SYMBOL(drm_simple_encoder_create); > +
Hi Thomas,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.6-rc1 next-20200210]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to
specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url:
https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-Provide-a-simple-encoder/20200210-153139
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9
config: x86_64-randconfig-f002-20200210 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>
All errors (new ones prefixed by >>):
drivers/gpu/drm/qxl/qxl_display.c: In function
'qdev_output_init':>> drivers/gpu/drm/qxl/qxl_display.c:1103:31: error: incompatible type for
argument 2 of 'drm_simple_encoder_init'
drm_simple_encoder_init(dev, qxl_output->enc, DRM_MODE_ENCODER_VIRTUAL,
^~~~~~~~~~
In file included from include/drm/drm_modeset_helper_vtables.h:33:0,
from include/drm/drm_atomic_helper.h:32,
from drivers/gpu/drm/qxl/qxl_display.c:30:
include/drm/drm_encoder.h:194:5: note: expected 'struct drm_encoder
*' but argument is of type 'struct drm_encoder'
int drm_simple_encoder_init(struct drm_device *dev,
^~~~~~~~~~~~~~~~~~~~~~~
vim +/drm_simple_encoder_init +1103 drivers/gpu/drm/qxl/qxl_display.c
1084
1085 static int qdev_output_init(struct drm_device *dev, int num_output)
1086 {
1087 struct qxl_device *qdev = dev->dev_private;
1088 struct qxl_output *qxl_output;
1089 struct drm_connector *connector;
1090 struct drm_encoder *encoder;
1091
1092 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1093 if (!qxl_output)
1094 return -ENOMEM;
1095
1096 qxl_output->index = num_output;
1097
1098 connector = &qxl_output->base;
1099 encoder = &qxl_output->enc;
1100 drm_connector_init(dev, &qxl_output->base,
1101 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1102 > 1103 drm_simple_encoder_init(dev, qxl_output->enc,
DRM_MODE_ENCODER_VIRTUAL,
1104 NULL);
1105
1106 /* we get HPD via client monitors config */
1107 connector->polled = DRM_CONNECTOR_POLL_HPD;
1108 encoder->possible_crtcs = 1 << num_output;
1109 drm_connector_attach_encoder(&qxl_output->base,
1110 &qxl_output->enc);
1111 drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1112
1113 drm_object_attach_property(&connector->base,
1114 qdev->hotplug_mode_update_property, 0);
1115 drm_object_attach_property(&connector->base,
1116 dev->mode_config.suggested_x_property, 0);
1117 drm_object_attach_property(&connector->base,
1118 dev->mode_config.suggested_y_property, 0);
1119 return 0;
1120 }
1121
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all at lists.01.org
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kbuild test robot
2020-Feb-10 10:28 UTC
[PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
Hi Thomas, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.6-rc1 next-20200210] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/drm-Provide-a-simple-encoder/20200210-153139 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9 reproduce: make htmldocs If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp at intel.com> All warnings (new ones prefixed by >>): include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'getprocattr' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'setprocattr' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'locked_down' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_open' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_alloc' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_free' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_read' not described in 'security_list_options' include/linux/lsm_hooks.h:1830: warning: Function parameter or member 'perf_event_write' not described in 'security_list_options' drivers/usb/typec/bus.c:1: warning: 'typec_altmode_register_driver' not found drivers/usb/typec/bus.c:1: warning: 'typec_altmode_unregister_driver' not found drivers/usb/typec/class.c:1: warning: 'typec_altmode_unregister_notifier' not found drivers/usb/typec/class.c:1: warning: 'typec_altmode_register_notifier' not found include/linux/regulator/machine.h:196: warning: Function parameter or member 'max_uV_step' not described in 'regulation_constraints' include/linux/regulator/driver.h:223: warning: Function parameter or member 'resume' not described in 'regulator_ops' include/linux/skbuff.h:890: warning: Function parameter or member 'dev_scratch' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'list' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'ip_defrag_offset' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'skb_mstamp_ns' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member '__cloned_offset' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'head_frag' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member '__pkt_type_offset' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'encapsulation' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'encap_hdr_csum' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'csum_valid' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member '__pkt_vlan_present_offset' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'vlan_present' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'csum_complete_sw' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'csum_level' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'inner_protocol_type' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'remcsum_offload' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'sender_cpu' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'reserved_tailroom' not described in 'sk_buff' include/linux/skbuff.h:890: warning: Function parameter or member 'inner_ipproto' not described in 'sk_buff' include/net/sock.h:232: warning: Function parameter or member 'skc_addrpair' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_portpair' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_ipv6only' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_net_refcnt' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_v6_daddr' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_v6_rcv_saddr' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_cookie' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_listener' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_tw_dr' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_rcv_wnd' not described in 'sock_common' include/net/sock.h:232: warning: Function parameter or member 'skc_tw_rcv_nxt' not described in 'sock_common' include/net/sock.h:498: warning: Function parameter or member 'sk_rx_skb_cache' not described in 'sock' include/net/sock.h:498: warning: Function parameter or member 'sk_wq_raw' not described in 'sock' include/net/sock.h:498: warning: Function parameter or member 'tcp_rtx_queue' not described in 'sock' include/net/sock.h:498: warning: Function parameter or member 'sk_tx_skb_cache' not described in 'sock' include/net/sock.h:498: warning: Function parameter or member 'sk_route_forced_caps' not described in 'sock' include/net/sock.h:498: warning: Function parameter or member 'sk_txtime_report_errors' not described in 'sock' include/net/sock.h:498: warning: Function parameter or member 'sk_validate_xmit_skb' not described in 'sock' include/net/sock.h:498: warning: Function parameter or member 'sk_bpf_storage' not described in 'sock' include/net/sock.h:2444: warning: Function parameter or member 'tcp_rx_skb_cache_key' not described in 'DECLARE_STATIC_KEY_FALSE' include/net/sock.h:2444: warning: Excess function parameter 'sk' description in 'DECLARE_STATIC_KEY_FALSE' include/net/sock.h:2444: warning: Excess function parameter 'skb' description in 'DECLARE_STATIC_KEY_FALSE' include/linux/netdevice.h:2100: warning: Function parameter or member 'gso_partial_features' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'l3mdev_ops' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'xfrmdev_ops' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'tlsdev_ops' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'name_assign_type' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'ieee802154_ptr' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'mpls_ptr' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'xdp_prog' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'gro_flush_timeout' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'xdp_bulkq' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'xps_cpus_map' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'xps_rxqs_map' not described in 'net_device' include/linux/netdevice.h:2100: warning: Function parameter or member 'qdisc_hash' not described in 'net_device' include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising' not described in 'phylink_link_state' include/linux/phylink.h:56: warning: Function parameter or member '__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising' not described in 'phylink_link_state' drivers/infiniband/core/umem_odp.c:161: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_alloc_child' drivers/infiniband/core/umem_odp.c:211: warning: Function parameter or member 'ops' not described in 'ib_umem_odp_get' drivers/infiniband/ulp/iser/iscsi_iser.h:401: warning: Function parameter or member 'all_list' not described in 'iser_fr_desc' drivers/infiniband/ulp/iser/iscsi_iser.h:415: warning: Function parameter or member 'all_list' not described in 'iser_fr_pool' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd0' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd1' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd2' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd3' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:148: warning: Function parameter or member 'rsvd4' not described in 'opa_vesw_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd0' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd1' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd2' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:205: warning: Function parameter or member 'rsvd3' not described in 'opa_per_veswport_info' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:263: warning: Function parameter or member 'tbl_entries' not described in 'opa_veswport_mactable' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:342: warning: Function parameter or member 'reserved' not described in 'opa_veswport_summary_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd0' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd1' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd2' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd3' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd4' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd5' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd6' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd7' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd8' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:394: warning: Function parameter or member 'rsvd9' not described in 'opa_veswport_error_counters' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:460: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:485: warning: Function parameter or member 'reserved' not described in 'opa_vnic_notice_attr' drivers/infiniband/ulp/opa_vnic/opa_vnic_encap.h:500: warning: Function parameter or member 'reserved' not described in 'opa_vnic_vema_mad_trap' include/linux/input/sparse-keymap.h:43: warning: Function parameter or member 'sw' not described in 'key_entry' drivers/gpu/drm/drm_encoder.c:202: warning: Excess function parameter 'funcs' description in 'drm_simple_encoder_init'>> drivers/gpu/drm/drm_encoder.c:203: warning: Function parameter or member 'encoder' not described in 'drm_simple_encoder_init'drivers/gpu/drm/drm_encoder.c:203: warning: Excess function parameter 'funcs' description in 'drm_simple_encoder_init' include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'prepare_writeback_job' not described in 'drm_connector_helper_funcs' include/drm/drm_modeset_helper_vtables.h:1052: warning: Function parameter or member 'cleanup_writeback_job' not described in 'drm_connector_helper_funcs' drivers/gpu/drm/bridge/panel.c:303: warning: Function parameter or member 'bridge' not described in 'drm_panel_bridge_connector' include/drm/drm_dp_mst_helper.h:162: warning: Function parameter or member 'fec_capable' not described in 'drm_dp_mst_port' include/drm/gpu_scheduler.h:103: warning: Function parameter or member 'priority' not described in 'drm_sched_entity' drivers/gpu/drm/i915/i915_vma.h:1: warning: 'Virtual Memory Address' not found drivers/gpu/drm/i915/i915_gem_gtt.c:1: warning: 'Global GTT views' not found include/linux/host1x.h:66: warning: Function parameter or member 'parent' not described in 'host1x_client' include/linux/host1x.h:66: warning: Function parameter or member 'usecount' not described in 'host1x_client' include/linux/host1x.h:66: warning: Function parameter or member 'lock' not described in 'host1x_client' include/net/cfg80211.h:1189: warning: Function parameter or member 'txpwr' not described in 'station_parameters' include/net/mac80211.h:4081: warning: Function parameter or member 'sta_set_txpwr' not described in 'ieee80211_ops' include/net/mac80211.h:2036: warning: Function parameter or member 'txpwr' not described in 'ieee80211_sta' kernel/sched/fair.c:3526: warning: Excess function parameter 'flags' description in 'attach_entity_load_avg' Documentation/admin-guide/acpi/fan_performance_states.rst:21: WARNING: Literal block ends without a blank line; unexpected unindent. Documentation/admin-guide/acpi/fan_performance_states.rst:41: WARNING: Literal block expected; none found. Documentation/admin-guide/perf/imx-ddr.rst:47: WARNING: Unexpected indentation. Documentation/x86/index.rst:7: WARNING: toctree contains reference to nonexisting document 'x86/intel_mpx' Documentation/admin-guide/bootconfig.rst:26: WARNING: Literal block expected; none found. Documentation/admin-guide/hw-vuln/tsx_async_abort.rst:142: WARNING: duplicate label virt_mechanism, other instance in Documentation/admin-guide/hw-vuln/mds.rst drivers/message/fusion/mptbase.c:5057: WARNING: Definition list ends without a blank line; unexpected unindent. include/uapi/linux/firewire-cdev.h:312: WARNING: Inline literal start-string without end-string. drivers/firewire/core-transaction.c:606: WARNING: Inline strong start-string without end-string. Documentation/driver-api/gpio/driver.rst:425: WARNING: Unexpected indentation. Documentation/driver-api/gpio/driver.rst:423: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:427: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:429: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:433: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:446: WARNING: Unexpected indentation. Documentation/driver-api/gpio/driver.rst:440: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:440: WARNING: Inline emphasis start-string without end-string. 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Documentation/driver-api/gpio/driver.rst:471: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/gpio/driver.rst:478: WARNING: Inline emphasis start-string without end-string. include/linux/spi/spi.h:399: WARNING: Unexpected indentation. Documentation/power/index.rst:7: WARNING: toctree contains reference to nonexisting document 'power/interface' Documentation/power/pm_qos_interface.rst:12: WARNING: Unexpected indentation. Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/admin-guide/ras.rst:358: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/admin-guide/ras.rst:363: WARNING: Definition list ends without a blank line; unexpected unindent. include/linux/devfreq.h:156: WARNING: Inline emphasis start-string without end-string. include/linux/devfreq.h:261: WARNING: Inline emphasis start-string without end-string. include/linux/devfreq.h:281: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/dmaengine/client.rst:203: WARNING: Unexpected indentation. Documentation/driver-api/dmaengine/client.rst:204: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/dmaengine/client.rst:210: WARNING: Unexpected indentation. Documentation/driver-api/dmaengine/client.rst:211: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/dmaengine/client.rst:220: WARNING: Unexpected indentation. Documentation/driver-api/dmaengine/client.rst:221: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/dmaengine/client.rst:229: WARNING: Unexpected indentation. Documentation/driver-api/dmaengine/client.rst:230: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/dmaengine/provider.rst:270: WARNING: Unexpected indentation. Documentation/driver-api/dmaengine/provider.rst:273: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/dmaengine/provider.rst:288: WARNING: Unexpected indentation. Documentation/driver-api/dmaengine/provider.rst:290: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/driver-api/driver-model/driver.rst:215: WARNING: Inline emphasis start-string without end-string. Documentation/driver-api/driver-model/driver.rst:215: WARNING: Inline emphasis start-string without end-string. Documentation/filesystems/fuse.rst:2: WARNING: Explicit markup ends without a blank line; unexpected unindent. Documentation/filesystems/ubifs-authentication.rst:94: WARNING: Inline interpreted text or phrase reference start-string without end-string. Documentation/trace/events.rst:589: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/trace/events.rst:620: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:623: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:626: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:703: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:697: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:722: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:775: WARNING: Definition list ends without a blank line; unexpected unindent. Documentation/trace/events.rst:814: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:817: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:820: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:823: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:826: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:829: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:832: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:844: WARNING: Unexpected indentation. Documentation/trace/events.rst:845: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/trace/events.rst:849: WARNING: Unexpected indentation. Documentation/trace/events.rst:850: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/trace/events.rst:883: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:886: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:889: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:895: WARNING: Bullet list ends without a blank line; unexpected unindent. Documentation/trace/events.rst:895: WARNING: Inline emphasis start-string without end-string. Documentation/trace/events.rst:968: WARNING: Inline emphasis start-string without end-string. fs/inode.c:1608: WARNING: Inline emphasis start-string without end-string. fs/inode.c:1608: WARNING: Inline emphasis start-string without end-string. fs/inode.c:1614: WARNING: Inline emphasis start-string without end-string. fs/seq_file.c:40: WARNING: Inline strong start-string without end-string. vim +203 drivers/gpu/drm/drm_encoder.c 184 185 /** 186 * drm_simple_encoder_init - Init a preallocated encoder 187 * @dev: drm device 188 * @funcs: callbacks for this encoder 189 * @encoder_type: user visible type of the encoder 190 * @name: printf style format string for the encoder name, or NULL 191 * for default name 192 * 193 * Initialises a preallocated encoder that has no further functionality. The 194 * encoder will be released automatically. 195 * 196 * Returns: 197 * Zero on success, error code on failure. 198 */ 199 int drm_simple_encoder_init(struct drm_device *dev, 200 struct drm_encoder *encoder, 201 int encoder_type, const char *name, ...) 202 { > 203 char *namestr = NULL; 204 int ret; 205 206 if (name) { 207 va_list ap; 208 209 va_start(ap, name); 210 namestr = kvasprintf(GFP_KERNEL, name, ap); 211 va_end(ap); 212 if (!namestr) 213 return -ENOMEM; 214 } 215 216 ret = __drm_encoder_init(dev, encoder, 217 &drm_simple_encoder_funcs_cleanup, 218 encoder_type, namestr); 219 if (ret) 220 goto err_kfree; 221 222 return 0; 223 224 err_kfree: 225 if (name) 226 kfree(namestr); 227 return ret; 228 } 229 EXPORT_SYMBOL(drm_simple_encoder_init); 230 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all at lists.01.org -------------- next part -------------- A non-text attachment was scrubbed... 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Reasonably Related Threads
- [PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
- [PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
- [PATCH v2 0/4] drm: Provide a simple encoder
- [PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()
- [PATCH 2/6] drm: Add drm_simple_encoder_{init,create}()