> -----Original Message-----
> From: Kandpal, Suraj <suraj.kandpal@xxxxxxxxx>
> Sent: Monday, May 29, 2023 4:38 PM
> To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Cc: Kandpal, Suraj <suraj.kandpal@xxxxxxxxx>; Borah, Chaitanya Kumar
> <chaitanya.kumar.borah@xxxxxxxxx>; Nautiyal, Ankit K
> <ankit.k.nautiyal@xxxxxxxxx>; Nikula, Jani <jani.nikula@xxxxxxxxx>
> Subject: [PATCH v4 2/3] drm/i915/hdcp: Move away from master naming to
> arbiter
>
> Rename variables to move away from master convention to arbiter
> %s/hdcp.master/hdcp.arbiter %s/i915_hdcp_master/i915_hdcp_arbiter
> %s/comp_master/comp_arbiter
>
> --v2
> - delete i915_hdcp_comp_master redundant declaration [Chaitanya]
> - use %s/foo/bar/ format in commit message to show changes [Chaitanya]
>
> --v3
> - replace i915_hdcp_comp_master declaration with i915_hdcp_arbiter to avoid
> any compile fail with old compilers [Chaitanya]
>
LGTM,
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@xxxxxxxxx>
> Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@xxxxxxxxx>
> Cc: Ankit Nautiyal <ankit.k.nautiyal@xxxxxxxxx>
> Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
> Signed-off-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
> ---
> .../gpu/drm/i915/display/intel_display_core.h | 4 +-
> drivers/gpu/drm/i915/display/intel_hdcp.c | 52 +++++++++----------
> drivers/gpu/drm/i915/display/intel_hdcp_gsc.c | 12 ++---
> drivers/misc/mei/hdcp/mei_hdcp.c | 26 +++++-----
> include/drm/i915_hdcp_interface.h | 4 +-
> 5 files changed, 49 insertions(+), 49 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h
> b/drivers/gpu/drm/i915/display/intel_display_core.h
> index e36f88a39b86..23957d80efe8 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_core.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_core.h
> @@ -30,7 +30,7 @@ struct drm_i915_private; struct drm_property; struct
> drm_property_blob; struct i915_audio_component; -struct
> i915_hdcp_comp_master;
> +struct i915_hdcp_arbiter;
> struct intel_atomic_state;
> struct intel_audio_funcs;
> struct intel_bios_encoder_data;
> @@ -395,7 +395,7 @@ struct intel_display {
> } gmbus;
>
> struct {
> - struct i915_hdcp_master *master;
> + struct i915_hdcp_arbiter *arbiter;
> bool comp_added;
>
> /*
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c
> b/drivers/gpu/drm/i915/display/intel_hdcp.c
> index e2e5527efc4b..bf28c6f1d748 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
> @@ -183,7 +183,7 @@ bool intel_hdcp2_capable(struct intel_connector
> *connector)
>
> /* MEI/GSC interface is solid depending on which is used */
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - if (!i915->display.hdcp.comp_added || !i915->display.hdcp.master) {
> + if (!i915->display.hdcp.comp_added || !i915->display.hdcp.arbiter) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> return false;
> }
> @@ -1114,11 +1114,11 @@ hdcp2_prepare_ake_init(struct intel_connector
> *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1144,11 +1144,11 @@ hdcp2_verify_rx_cert_prepare_km(struct
> intel_connector *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1172,11 +1172,11 @@ static int hdcp2_verify_hprime(struct
> intel_connector *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1198,11 +1198,11 @@ hdcp2_store_pairing_info(struct intel_connector
> *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1225,11 +1225,11 @@ hdcp2_prepare_lc_init(struct intel_connector
> *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1252,11 +1252,11 @@ hdcp2_verify_lprime(struct intel_connector
> *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1278,11 +1278,11 @@ static int hdcp2_prepare_skey(struct
> intel_connector *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1307,11 +1307,11 @@ hdcp2_verify_rep_topology_prepare_ack(struct
> intel_connector *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1337,11 +1337,11 @@ hdcp2_verify_mprime(struct intel_connector
> *connector,
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1361,11 +1361,11 @@ static int hdcp2_authenticate_port(struct
> intel_connector *connector)
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct hdcp_port_data *data = &dig_port->hdcp_port_data;
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -1385,11 +1385,11 @@ static int hdcp2_close_session(struct
> intel_connector *connector) {
> struct intel_digital_port *dig_port =
> intel_attached_dig_port(connector);
> struct drm_i915_private *i915 = to_i915(connector->base.dev);
> - struct i915_hdcp_master *arbiter;
> + struct i915_hdcp_arbiter *arbiter;
> int ret;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - arbiter = i915->display.hdcp.master;
> + arbiter = i915->display.hdcp.arbiter;
>
> if (!arbiter || !arbiter->ops) {
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> @@ -2109,8 +2109,8 @@ static int i915_hdcp_component_bind(struct device
> *i915_kdev,
>
> drm_dbg(&i915->drm, "I915 HDCP comp bind\n");
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - i915->display.hdcp.master = (struct i915_hdcp_master *)data;
> - i915->display.hdcp.master->hdcp_dev = mei_kdev;
> + i915->display.hdcp.arbiter = (struct i915_hdcp_arbiter *)data;
> + i915->display.hdcp.arbiter->hdcp_dev = mei_kdev;
> mutex_unlock(&i915->display.hdcp.comp_mutex);
>
> return 0;
> @@ -2123,7 +2123,7 @@ static void i915_hdcp_component_unbind(struct
> device *i915_kdev,
>
> drm_dbg(&i915->drm, "I915 HDCP comp unbind\n");
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - i915->display.hdcp.master = NULL;
> + i915->display.hdcp.arbiter = NULL;
> mutex_unlock(&i915->display.hdcp.comp_mutex);
> }
>
> diff --git a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
> b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
> index 4056bb2323ca..62e7bf0e1035 100644
> --- a/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
> +++ b/drivers/gpu/drm/i915/display/intel_hdcp_gsc.c
> @@ -697,17 +697,17 @@ static void intel_hdcp_gsc_free_message(struct
> drm_i915_private *i915)
>
> int intel_hdcp_gsc_init(struct drm_i915_private *i915) {
> - struct i915_hdcp_master *data;
> + struct i915_hdcp_arbiter *data;
> int ret;
>
> - data = kzalloc(sizeof(struct i915_hdcp_master), GFP_KERNEL);
> + data = kzalloc(sizeof(struct i915_hdcp_arbiter), GFP_KERNEL);
> if (!data)
> return -ENOMEM;
>
> mutex_lock(&i915->display.hdcp.comp_mutex);
> - i915->display.hdcp.master = data;
> - i915->display.hdcp.master->hdcp_dev = i915->drm.dev;
> - i915->display.hdcp.master->ops = &gsc_hdcp_ops;
> + i915->display.hdcp.arbiter = data;
> + i915->display.hdcp.arbiter->hdcp_dev = i915->drm.dev;
> + i915->display.hdcp.arbiter->ops = &gsc_hdcp_ops;
> ret = intel_hdcp_gsc_hdcp2_init(i915);
> mutex_unlock(&i915->display.hdcp.comp_mutex);
>
> @@ -717,7 +717,7 @@ int intel_hdcp_gsc_init(struct drm_i915_private *i915)
> void intel_hdcp_gsc_fini(struct drm_i915_private *i915) {
> intel_hdcp_gsc_free_message(i915);
> - kfree(i915->display.hdcp.master);
> + kfree(i915->display.hdcp.arbiter);
> }
>
> static int intel_gsc_send_sync(struct drm_i915_private *i915, diff --git
> a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c
> index 85cbfc3413ee..51359cc5ece9 100644
> --- a/drivers/misc/mei/hdcp/mei_hdcp.c
> +++ b/drivers/misc/mei/hdcp/mei_hdcp.c
> @@ -735,13 +735,13 @@ static const struct i915_hdcp_ops mei_hdcp_ops = {
> static int mei_component_master_bind(struct device *dev) {
> struct mei_cl_device *cldev = to_mei_cl_device(dev);
> - struct i915_hdcp_master *comp_master =
> mei_cldev_get_drvdata(cldev);
> + struct i915_hdcp_arbiter *comp_arbiter =
> mei_cldev_get_drvdata(cldev);
> int ret;
>
> dev_dbg(dev, "%s\n", __func__);
> - comp_master->ops = &mei_hdcp_ops;
> - comp_master->hdcp_dev = dev;
> - ret = component_bind_all(dev, comp_master);
> + comp_arbiter->ops = &mei_hdcp_ops;
> + comp_arbiter->hdcp_dev = dev;
> + ret = component_bind_all(dev, comp_arbiter);
> if (ret < 0)
> return ret;
>
> @@ -751,10 +751,10 @@ static int mei_component_master_bind(struct
> device *dev) static void mei_component_master_unbind(struct device *dev) {
> struct mei_cl_device *cldev = to_mei_cl_device(dev);
> - struct i915_hdcp_master *comp_master =
> mei_cldev_get_drvdata(cldev);
> + struct i915_hdcp_arbiter *comp_arbiter =
> mei_cldev_get_drvdata(cldev);
>
> dev_dbg(dev, "%s\n", __func__);
> - component_unbind_all(dev, comp_master);
> + component_unbind_all(dev, comp_arbiter);
> }
>
> static const struct component_master_ops mei_component_master_ops = {
> @@ -799,7 +799,7 @@ static int mei_hdcp_component_match(struct device
> *dev, int subcomponent, static int mei_hdcp_probe(struct mei_cl_device
> *cldev,
> const struct mei_cl_device_id *id) {
> - struct i915_hdcp_master *comp_master;
> + struct i915_hdcp_arbiter *comp_arbiter;
> struct component_match *master_match;
> int ret;
>
> @@ -809,8 +809,8 @@ static int mei_hdcp_probe(struct mei_cl_device *cldev,
> goto enable_err_exit;
> }
>
> - comp_master = kzalloc(sizeof(*comp_master), GFP_KERNEL);
> - if (!comp_master) {
> + comp_arbiter = kzalloc(sizeof(*comp_arbiter), GFP_KERNEL);
> + if (!comp_arbiter) {
> ret = -ENOMEM;
> goto err_exit;
> }
> @@ -823,7 +823,7 @@ static int mei_hdcp_probe(struct mei_cl_device *cldev,
> goto err_exit;
> }
>
> - mei_cldev_set_drvdata(cldev, comp_master);
> + mei_cldev_set_drvdata(cldev, comp_arbiter);
> ret = component_master_add_with_match(&cldev->dev,
> &mei_component_master_ops,
> master_match);
> @@ -836,7 +836,7 @@ static int mei_hdcp_probe(struct mei_cl_device *cldev,
>
> err_exit:
> mei_cldev_set_drvdata(cldev, NULL);
> - kfree(comp_master);
> + kfree(comp_arbiter);
> mei_cldev_disable(cldev);
> enable_err_exit:
> return ret;
> @@ -844,11 +844,11 @@ static int mei_hdcp_probe(struct mei_cl_device
> *cldev,
>
> static void mei_hdcp_remove(struct mei_cl_device *cldev) {
> - struct i915_hdcp_master *comp_master =
> mei_cldev_get_drvdata(cldev);
> + struct i915_hdcp_arbiter *comp_arbiter =
> mei_cldev_get_drvdata(cldev);
> int ret;
>
> component_master_del(&cldev->dev, &mei_component_master_ops);
> - kfree(comp_master);
> + kfree(comp_arbiter);
> mei_cldev_set_drvdata(cldev, NULL);
>
> ret = mei_cldev_disable(cldev);
> diff --git a/include/drm/i915_hdcp_interface.h
> b/include/drm/i915_hdcp_interface.h
> index 2059b066f8a1..4c9c8167c2d5 100644
> --- a/include/drm/i915_hdcp_interface.h
> +++ b/include/drm/i915_hdcp_interface.h
> @@ -168,12 +168,12 @@ struct i915_hdcp_ops { };
>
> /**
> - * struct i915_hdcp_master - Used for communication between i915
> + * struct i915_hdcp_arbiter - Used for communication between i915
> * and hdcp drivers for the HDCP2.2 services
> * @hdcp_dev: device that provide the HDCP2.2 service from MEI Bus.
> * @hdcp_ops: Ops implemented by hdcp driver or intel_hdcp_gsc , used by
> i915 driver.
> */
> -struct i915_hdcp_master {
> +struct i915_hdcp_arbiter {
> struct device *hdcp_dev;
> const struct i915_hdcp_ops *ops;
>
> --
> 2.25.1
