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

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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>
This commit is contained in:
Laurentiu Tudor 2017-11-17 15:38:26 +02:00 committed by Greg Kroah-Hartman
parent 8ba6b44a5a
commit 2b0ff43ae5
1 changed files with 0 additions and 4 deletions
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4
drivers/staging/fsl-mc/bus/dpio/dpio-service.c
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@ -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);