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-rw-r--r--include/ufs/ufshci.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/ufs/ufshci.h b/include/ufs/ufshci.h
index f525566a0864..e145a478afa2 100644
--- a/include/ufs/ufshci.h
+++ b/include/ufs/ufshci.h
@@ -422,18 +422,23 @@ struct ufshcd_sg_entry {
__le64 addr;
__le32 reserved;
__le32 size;
+ /*
+ * followed by variant-specific fields if
+ * CONFIG_SCSI_UFS_VARIABLE_SG_ENTRY_SIZE has been defined.
+ */
};
/**
* struct utp_transfer_cmd_desc - UTP Command Descriptor (UCD)
* @command_upiu: Command UPIU Frame address
* @response_upiu: Response UPIU Frame address
- * @prd_table: Physical Region Descriptor
+ * @prd_table: Physical Region Descriptor: an array of SG_ALL struct
+ * ufshcd_sg_entry's. Variant-specific fields may be present after each.
*/
struct utp_transfer_cmd_desc {
u8 command_upiu[ALIGNED_UPIU_SIZE];
u8 response_upiu[ALIGNED_UPIU_SIZE];
- struct ufshcd_sg_entry prd_table[SG_ALL];
+ u8 prd_table[];
};
/**