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-rw-r--r--include/linux/ata.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 1648026e06b4..681520f8a3de 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -696,6 +696,13 @@ static inline bool ata_id_wcache_enabled(const u16 *id)
return id[ATA_ID_CFS_ENABLE_1] & (1 << 5);
}
+static inline bool ata_id_has_read_log_dma_ext(const u16 *id)
+{
+ if (!(id[ATA_ID_CFS_ENABLE_2] & (1 << 15)))
+ return false;
+ return id[ATA_ID_COMMAND_SET_3] & (1 << 3);
+}
+
/**
* ata_id_major_version - get ATA level of drive
* @id: Identify data