+/*
+ * Write LBA Range Entries to the buffer that will cover the extent from
+ * sector to sector + count. This is used for TRIM and for ADD LBA(S)
+ * TO NV CACHE PINNED SET.
+ */
+static inline unsigned ata_set_lba_range_entries(void *_buffer,
+ unsigned buf_size, u64 sector, unsigned long count)
+{
+ __le64 *buffer = _buffer;
+ unsigned i = 0, used_bytes;
+
+ while (i < buf_size / 8 ) { /* 6-byte LBA + 2-byte range per entry */
+ u64 entry = sector |
+ ((u64)(count > 0xffff ? 0xffff : count) << 48);
+ buffer[i++] = __cpu_to_le64(entry);
+ if (count <= 0xffff)
+ break;
+ count -= 0xffff;
+ sector += 0xffff;
+ }
+
+ used_bytes = ALIGN(i * 8, 512);
+ memset(buffer + i, 0, used_bytes - i * 8);
+ return used_bytes;
+}
+