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-rw-r--r--include/linux/ata.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 61535e72834d..5c4e54a2a8d6 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -425,6 +425,8 @@ static inline int ata_id_has_lba48(const u16 *id)
{
if ((id[83] & 0xC000) != 0x4000)
return 0;
+ if (!ata_id_u64(id, 100))
+ return 0;
return id[83] & (1 << 10);
}
@@ -535,6 +537,15 @@ static inline int ata_drive_40wire(const u16 *dev_id)
return 1;
}
+static inline int ata_drive_40wire_relaxed(const u16 *dev_id)
+{
+ if (ata_id_is_sata(dev_id))
+ return 0; /* SATA */
+ if ((dev_id[93] & 0x2000) == 0x2000)
+ return 0; /* 80 wire */
+ return 1;
+}
+
static inline int atapi_cdb_len(const u16 *dev_id)
{
u16 tmp = dev_id[0] & 0x3;