[PATCH v2 2/5] drm/hdcp: fix DRM_HDCP_2_KSV_COUNT_2_LSBITS

Ramalingam C
2020-02-12T10:29:37Z

Need to extract the 2 most significant bits from a byte for constructing
the revoked KSV count of the SRM.

Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
---
include/drm/drm_hdcp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h
index d512089b873f..c6bab4986a65 100644
--- a/include/drm/drm_hdcp.h
+++ b/include/drm/drm_hdcp.h
@@ -276,7 +276,7 @@ void drm_hdcp_cpu_to_be24(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN], u32 val)
#define DRM_HDCP_2_VRL_LENGTH_SIZE 3
#define DRM_HDCP_2_DCP_SIG_SIZE 384
#define DRM_HDCP_2_NO_OF_DEV_PLUS_RESERVED_SZ 4
-#define DRM_HDCP_2_KSV_COUNT_2_LSBITS(byte) (((byte) & 0xC) >> 6)
+#define DRM_HDCP_2_KSV_COUNT_2_LSBITS(byte) (((byte) & 0xC0) >> 6)

struct hdcp_srm_header {
u8 srm_id;
--
2.20.1