crypto: qat - remove unused members in suof structure

Remove the members `css_key` and `css_signature` which are not used for
doing the firmware authentication.

The signed image pointer can be calculated using the pointer to the CSS
header and the length of the CSS header, making these members redundant.

Signed-off-by: Jack Xu <[email protected]>
Reviewed-by: Ahsan Atta <[email protected]>
Reviewed-by: Giovanni Cabiddu <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Giovanni Cabiddu <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

Author: jxu75

drivers/crypto/intel/qat/qat_common/icp_qat_uclo.h

@@ -404,8 +404,6 @@ struct icp_qat_suof_img_hdr {
 	char          *simg_buf;
 	unsigned long simg_len;
 	char          *css_header;
-	char          *css_key;
-	char          *css_signature;
 	char          *css_simg;
 	unsigned long simg_size;
 	unsigned int  ae_num;

drivers/crypto/intel/qat/qat_common/qat_uclo.c

@@ -1064,6 +1064,7 @@ static void qat_uclo_map_simg(struct icp_qat_fw_loader_handle *handle,
 			      struct icp_qat_suof_chunk_hdr *suof_chunk_hdr)
 {
 	struct icp_qat_suof_handle *suof_handle = handle->sobj_handle;
+	unsigned int offset = ICP_QAT_AE_IMG_OFFSET(handle);
 	struct icp_qat_simg_ae_mode *ae_mode;
 	struct icp_qat_suof_objhdr *suof_objhdr;
 
@@ -1075,13 +1076,7 @@ static void qat_uclo_map_simg(struct icp_qat_fw_loader_handle *handle,
 				   suof_chunk_hdr->offset))->img_length;
 
 	suof_img_hdr->css_header = suof_img_hdr->simg_buf;
-	suof_img_hdr->css_key = (suof_img_hdr->css_header +
-				 sizeof(struct icp_qat_css_hdr));
-	suof_img_hdr->css_signature = suof_img_hdr->css_key +
-				      ICP_QAT_CSS_FWSK_MODULUS_LEN(handle) +
-				      ICP_QAT_CSS_FWSK_EXPONENT_LEN(handle);
-	suof_img_hdr->css_simg = suof_img_hdr->css_signature +
-				 ICP_QAT_CSS_SIGNATURE_LEN(handle);
+	suof_img_hdr->css_simg = suof_img_hdr->css_header + offset;
 
 	ae_mode = (struct icp_qat_simg_ae_mode *)(suof_img_hdr->css_simg);
 	suof_img_hdr->ae_mask = ae_mode->ae_mask;