staging: fsl-mc/dpio: remove incomplete refcount implementation

There's an unfinished implementation of reference counting for dpaa2_io
structure using atomics. Since it's unused lets remove it for now and,
if needed at a later time, make use of krefs instead of rolling our
own refcounting.

Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
index a609ec82daf34e7170c45e9636175d5781ddf70d..591d8b7d4f496a2fb50082dd92e017ff0bcfb2cb 100644 (file)
--- a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
@@ -43,7 +43,6 @@
 #include "qbman-portal.h"
 
 struct dpaa2_io {
-       atomic_t refs;
        struct dpaa2_io_desc dpio_desc;
        struct qbman_swp_desc swp_desc;
        struct qbman_swp *swp;
@@ -126,7 +125,6 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
                return NULL;
        }
 
-       atomic_set(&obj->refs, 1);
        obj->dpio_desc = *desc;
        obj->swp_desc.cena_bar = obj->dpio_desc.regs_cena;
        obj->swp_desc.cinh_bar = obj->dpio_desc.regs_cinh;
@@ -171,8 +169,6 @@ EXPORT_SYMBOL(dpaa2_io_create);
  */
 void dpaa2_io_down(struct dpaa2_io *d)
 {
-       if (!atomic_dec_and_test(&d->refs))
-               return;
        kfree(d);
 }
 EXPORT_SYMBOL(dpaa2_io_down);