Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: implement HORKAGE_1_5_GBPS and apply it to WD My Book
  libata: add no penalty retry request for EH device handling routines
  libata: improve probe failure handling
  libata: add @spd_limit to sata_down_spd_limit()
  libata: clear dev->ering in smarter way
  libata: check onlineness before using SPD in sata_down_spd_limit()
  libata: move ata_dev_disable() to libata-eh.c
  libata: fix EH device failure handling
  sata_nv: ck804 has borked hardreset too
  ide/libata: fix ata_id_is_cfa() (take 4)
  libata: fix kernel-doc warnings
  ahci: add a module parameter to ignore the SSS flags for async scanning
  sata_mv: Fix chip type for Hightpoint RocketRaid 1740/1742
  [libata] sata_sil: Fix compilation error with libata debugging enabled

1 files changed, 11 insertions, 8 deletions

diff --git a/include/linux/libata.h b/include/linux/libata.h
index bca3ba25f52a..5d87bc09a1f5 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -380,6 +380,7 @@ enum {
         ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands
                                                     not multiple of 16 bytes */
         ATA_HORKAGE_FIRMWARE_WARN = (1 << 12),  /* firwmare update warning */
+        ATA_HORKAGE_1_5_GBPS    = (1 << 13),    /* force 1.5 Gbps */
 
          /* DMA mask for user DMA control: User visible values; DO NOT
             renumber */
@@ -580,7 +581,7 @@ struct ata_device {
         acpi_handle             acpi_handle;
         union acpi_object       *gtf_cache;
 #endif
-        /* n_sector is used as CLEAR_OFFSET, read comment above CLEAR_OFFSET */
+        /* n_sector is CLEAR_BEGIN, read comment above CLEAR_BEGIN */
         u64                     n_sectors;      /* size of device, if ATA */
         unsigned int            class;          /* ATA_DEV_xxx */
         unsigned long           unpark_deadline;
@@ -605,20 +606,22 @@ struct ata_device {
         u16                     heads;          /* Number of heads */
         u16                     sectors;        /* Number of sectors per track */
 
-        /* error history */
-        int                     spdn_cnt;
-        struct ata_ering        ering;
-
         union {
                 u16             id[ATA_ID_WORDS]; /* IDENTIFY xxx DEVICE data */
                 u32             gscr[SATA_PMP_GSCR_DWORDS]; /* PMP GSCR block */
         };
+
+        /* error history */
+        int                     spdn_cnt;
+        /* ering is CLEAR_END, read comment above CLEAR_END */
+        struct ata_ering        ering;
 };
 
-/* Offset into struct ata_device.  Fields above it are maintained
- * acress device init.  Fields below are zeroed.
+/* Fields between ATA_DEVICE_CLEAR_BEGIN and ATA_DEVICE_CLEAR_END are
+ * cleared to zero on ata_dev_init().
  */
-#define ATA_DEVICE_CLEAR_OFFSET         offsetof(struct ata_device, n_sectors)
+#define ATA_DEVICE_CLEAR_BEGIN          offsetof(struct ata_device, n_sectors)
+#define ATA_DEVICE_CLEAR_END            offsetof(struct ata_device, ering)
 
 struct ata_eh_info {
         struct ata_device       *dev;           /* offending device */