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drm/i915/hdcp: Clean up local variables

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Eliminate the inconsistencies in the hdcp code local variables:
- use dev_priv over dev
- use to_i915() instead of dev->dev_private
- initialize variables when declaring them
- a bit of declaration suffling to appease ocd

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191204180549.1267-10-ville.syrjala@linux.intel.com
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
This commit is contained in:
Ville Syrjälä
2019-12-04 20:05:49 +02:00
parent 5d1db3f61a
commit 486bba4524
1 changed files with 25 additions and 29 deletions
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54
drivers/gpu/drm/i915/display/intel_hdcp.c
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@@ -85,8 +85,8 @@ bool intel_hdcp_capable(struct intel_connector *connector)
/* Is HDCP2.2 capable on Platform and Sink */
bool intel_hdcp2_capable(struct intel_connector *connector)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
bool capable = false;
@@ -298,14 +298,12 @@ int intel_hdcp_validate_v_prime(struct intel_connector *connector,
u8 *ksv_fifo, u8 num_downstream, u8 *bstatus)
{
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
enum transcoder cpu_transcoder = connector->hdcp.cpu_transcoder;
enum port port = intel_dig_port->base.port;
u32 vprime, sha_text, sha_leftovers, rep_ctl;
int ret, i, j, sha_idx;
dev_priv = intel_dig_port->base.base.dev->dev_private;
/* Process V' values from the receiver */
for (i = 0; i < DRM_HDCP_V_PRIME_NUM_PARTS; i++) {
ret = shim->read_v_prime_part(intel_dig_port, i, &vprime);
@@ -514,8 +512,8 @@ static
int intel_hdcp_auth_downstream(struct intel_connector *connector)
{
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
const struct intel_hdcp_shim *shim = connector->hdcp.shim;
struct drm_device *dev = connector->base.dev;
u8 bstatus[2], num_downstream, *ksv_fifo;
int ret, i, tries = 3;
@@ -558,7 +556,8 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
if (ret)
goto err;
if (drm_hdcp_check_ksvs_revoked(dev, ksv_fifo, num_downstream)) {
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm, ksv_fifo,
num_downstream)) {
DRM_ERROR("Revoked Ksv(s) in ksv_fifo\n");
ret = -EPERM;
goto err;
@@ -593,12 +592,11 @@ int intel_hdcp_auth_downstream(struct intel_connector *connector)
static int intel_hdcp_auth(struct intel_connector *connector)
{
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
struct drm_device *dev = connector->base.dev;
const struct intel_hdcp_shim *shim = hdcp->shim;
struct drm_i915_private *dev_priv;
enum transcoder cpu_transcoder = connector->hdcp.cpu_transcoder;
enum port port;
enum port port = intel_dig_port->base.port;
unsigned long r0_prime_gen_start;
int ret, i, tries = 2;
union {
@@ -615,10 +613,6 @@ static int intel_hdcp_auth(struct intel_connector *connector)
} ri;
bool repeater_present, hdcp_capable;
dev_priv = intel_dig_port->base.base.dev->dev_private;
port = intel_dig_port->base.port;
/*
* Detects whether the display is HDCP capable. Although we check for
* valid Bksv below, the HDCP over DP spec requires that we check
@@ -664,7 +658,7 @@ static int intel_hdcp_auth(struct intel_connector *connector)
if (ret < 0)
return ret;
if (drm_hdcp_check_ksvs_revoked(dev, bksv.shim, 1)) {
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm, bksv.shim, 1)) {
DRM_ERROR("BKSV is revoked\n");
return -EPERM;
}
@@ -755,9 +749,9 @@ static int intel_hdcp_auth(struct intel_connector *connector)
static int _intel_hdcp_disable(struct intel_connector *connector)
{
struct intel_hdcp *hdcp = &connector->hdcp;
struct drm_i915_private *dev_priv = connector->base.dev->dev_private;
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
enum port port = intel_dig_port->base.port;
enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
int ret;
@@ -786,8 +780,8 @@ static int _intel_hdcp_disable(struct intel_connector *connector)
static int _intel_hdcp_enable(struct intel_connector *connector)
{
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
struct drm_i915_private *dev_priv = connector->base.dev->dev_private;
int i, ret, tries = 3;
DRM_DEBUG_KMS("[%s:%d] HDCP is being enabled...\n",
@@ -836,9 +830,9 @@ struct intel_connector *intel_hdcp_to_connector(struct intel_hdcp *hdcp)
/* Implements Part 3 of the HDCP authorization procedure */
static int intel_hdcp_check_link(struct intel_connector *connector)
{
struct intel_hdcp *hdcp = &connector->hdcp;
struct drm_i915_private *dev_priv = connector->base.dev->dev_private;
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
enum port port = intel_dig_port->base.port;
enum transcoder cpu_transcoder;
int ret = 0;
@@ -901,9 +895,9 @@ static void intel_hdcp_prop_work(struct work_struct *work)
struct intel_hdcp *hdcp = container_of(work, struct intel_hdcp,
prop_work);
struct intel_connector *connector = intel_hdcp_to_connector(hdcp);
struct drm_device *dev = connector->base.dev;
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
drm_modeset_lock(&dev_priv->drm.mode_config.connection_mutex, NULL);
mutex_lock(&hdcp->mutex);
/*
@@ -916,7 +910,7 @@ static void intel_hdcp_prop_work(struct work_struct *work)
hdcp->value);
mutex_unlock(&hdcp->mutex);
drm_modeset_unlock(&dev->mode_config.connection_mutex);
drm_modeset_unlock(&dev_priv->drm.mode_config.connection_mutex);
}
bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port)
@@ -1210,8 +1204,8 @@ static int hdcp2_deauthenticate_port(struct intel_connector *connector)
static int hdcp2_authentication_key_exchange(struct intel_connector *connector)
{
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
struct drm_device *dev = connector->base.dev;
union {
struct hdcp2_ake_init ake_init;
struct hdcp2_ake_send_cert send_cert;
@@ -1248,7 +1242,8 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector)
hdcp->is_repeater = HDCP_2_2_RX_REPEATER(msgs.send_cert.rx_caps[2]);
if (drm_hdcp_check_ksvs_revoked(dev, msgs.send_cert.cert_rx.receiver_id,
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm,
msgs.send_cert.cert_rx.receiver_id,
1)) {
DRM_ERROR("Receiver ID is revoked\n");
return -EPERM;
@@ -1405,8 +1400,8 @@ static
int hdcp2_authenticate_repeater_topology(struct intel_connector *connector)
{
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
struct drm_device *dev = connector->base.dev;
union {
struct hdcp2_rep_send_receiverid_list recvid_list;
struct hdcp2_rep_send_ack rep_ack;
@@ -1441,7 +1436,8 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector)
device_cnt = (HDCP_2_2_DEV_COUNT_HI(rx_info[0]) << 4 |
HDCP_2_2_DEV_COUNT_LO(rx_info[1]));
if (drm_hdcp_check_ksvs_revoked(dev, msgs.recvid_list.receiver_ids,
if (drm_hdcp_check_ksvs_revoked(&dev_priv->drm,
msgs.recvid_list.receiver_ids,
device_cnt)) {
DRM_ERROR("Revoked receiver ID(s) is in list\n");
return -EPERM;
@@ -1527,7 +1523,7 @@ static int hdcp2_enable_encryption(struct intel_connector *connector)
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
enum port port = intel_attached_encoder(connector)->port;
enum port port = intel_dig_port->base.port;
enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
int ret;
@@ -1565,7 +1561,7 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
enum port port = intel_attached_encoder(connector)->port;
enum port port = intel_dig_port->base.port;
enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
int ret;
@@ -1676,7 +1672,7 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
struct intel_digital_port *intel_dig_port = intel_attached_dig_port(connector);
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_hdcp *hdcp = &connector->hdcp;
enum port port = intel_attached_encoder(connector)->port;
enum port port = intel_dig_port->base.port;
enum transcoder cpu_transcoder;
int ret = 0;