[PATCH] libata: remove unused qc->waiting

There is no user of qc->waiting left after ata_exec_internal()
changes.  Kill the field.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 1c4dbf3..9ea1025 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -3503,7 +3503,7 @@ struct ata_queued_cmd *ata_qc_new_init(struct ata_port *ap,
 static void __ata_qc_complete(struct ata_queued_cmd *qc)
 {
        struct ata_port *ap = qc->ap;
-       unsigned int tag, do_clear = 0;
+       unsigned int tag;
 
        qc->flags = 0;
        tag = qc->tag;
@@ -3511,17 +3511,8 @@ static void __ata_qc_complete(struct ata_queued_cmd *qc)
                if (tag == ap->active_tag)
                        ap->active_tag = ATA_TAG_POISON;
                qc->tag = ATA_TAG_POISON;
-               do_clear = 1;
-       }
-
-       if (qc->waiting) {
-               struct completion *waiting = qc->waiting;
-               qc->waiting = NULL;
-               complete(waiting);
-       }
-
-       if (likely(do_clear))
                clear_bit(tag, &ap->qactive);
+       }
 }
 
 /**
@@ -3537,7 +3528,6 @@ static void __ata_qc_complete(struct ata_queued_cmd *qc)
 void ata_qc_free(struct ata_queued_cmd *qc)
 {
        assert(qc != NULL);     /* ata_qc_from_tag _might_ return NULL */
-       assert(qc->waiting == NULL);    /* nothing should be waiting */
 
        __ata_qc_complete(qc);
 }

diff --git a/include/linux/libata.h b/include/linux/libata.h
index 833e57a..46337e7 100644 (file)
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -285,8 +285,6 @@ struct ata_queued_cmd {
 
        ata_qc_cb_t             complete_fn;
 
-       struct completion       *waiting;
-
        void                    *private_data;
 };