Existing functions for converting a 3bytes(be24) of big endian value into u32 of little endian and vice versa are renamed as
s/drm_hdcp2_seq_num_to_u32/drm_hdcp_be24_to_cpu s/drm_hdcp2_u32_to_seq_num/drm_hdcp_cpu_to_be24
Signed-off-by: Ramalingam C ramalingam.c@intel.com Suggested-by: Daniel Vetter daniel@ffwll.ch cc: Tomas Winkler tomas.winkler@intel.com --- drivers/gpu/drm/i915/intel_hdcp.c | 5 +++-- drivers/misc/mei/hdcp/mei_hdcp.c | 2 +- include/drm/drm_hdcp.h | 4 ++-- 3 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index b8c8d6d1a33d..c308dfee9ca4 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1305,7 +1305,7 @@ int hdcp2_propagate_stream_management_info(struct intel_connector *connector)
/* Prepare RepeaterAuth_Stream_Manage msg */ msgs.stream_manage.msg_id = HDCP_2_2_REP_STREAM_MANAGE; - drm_hdcp2_u32_to_seq_num(msgs.stream_manage.seq_num_m, hdcp->seq_num_m); + drm_hdcp_cpu_to_be24(msgs.stream_manage.seq_num_m, hdcp->seq_num_m);
/* K no of streams is fixed as 1. Stored as big-endian. */ msgs.stream_manage.k = cpu_to_be16(1); @@ -1370,7 +1370,8 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector) }
/* Converting and Storing the seq_num_v to local variable as DWORD */ - seq_num_v = drm_hdcp2_seq_num_to_u32(msgs.recvid_list.seq_num_v); + seq_num_v = + drm_hdcp_be24_to_cpu((const u8 *)msgs.recvid_list.seq_num_v);
if (seq_num_v < hdcp->seq_num_v) { /* Roll over of the seq_num_v from repeater. Reauthenticate. */ diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 90b6ae8e9dae..2f192d6d8b54 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -576,7 +576,7 @@ static int mei_hdcp_verify_mprime(struct device *dev,
memcpy(verify_mprime_in.m_prime, stream_ready->m_prime, HDCP_2_2_MPRIME_LEN); - drm_hdcp2_u32_to_seq_num(verify_mprime_in.seq_num_m, data->seq_num_m); + drm_hdcp_cpu_to_be24(verify_mprime_in.seq_num_m, data->seq_num_m); memcpy(verify_mprime_in.streams, data->streams, (data->k * sizeof(struct hdcp2_streamid_type)));
diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index f243408ecf26..1cc66df05a43 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -252,13 +252,13 @@ struct hdcp2_rep_stream_ready { * host format and back */ static inline -u32 drm_hdcp2_seq_num_to_u32(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN]) +u32 drm_hdcp_be24_to_cpu(const u8 seq_num[HDCP_2_2_SEQ_NUM_LEN]) { return (u32)(seq_num[2] | seq_num[1] << 8 | seq_num[0] << 16); }
static inline -void drm_hdcp2_u32_to_seq_num(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN], u32 val) +void drm_hdcp_cpu_to_be24(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN], u32 val) { seq_num[0] = val >> 16; seq_num[1] = val >> 8;