The driver tries to redefine mutex_lock_interruptible as an open-coded
mutex_lock_killable, but that definition clashes with the normal
mutex_lock_interruptible definition when CONFIG_DEBUG_LOCK_ALLOC
is set:
staging/vc04_services/interface/vchiq_arm/vchiq_killable.h:67:0: error:
"mutex_lock_interruptible" redefined [-Werror]
#define mutex_lock_interruptible mutex_lock_interruptible_killable
include/linux/mutex.h:161:0: note: this is the location of the previous
definition
This simply removes the private implementation and uses the
normal mutex_lock_killable directly.
We could do the same for the down_interruptible_killable here, but
it's better to just remove the semaphores entirely from the driver,
which also takes care of that.
Signed-off-by: Arnd Bergmann
---
.../vc04_services/interface/vchiq_arm/vchiq_arm.c| 2 +-
.../interface/vchiq_arm/vchiq_connected.c| 4 ++--
.../vc04_services/interface/vchiq_arm/vchiq_core.c | 20 ++--
.../interface/vchiq_arm/vchiq_kern_lib.c | 4 ++--
.../interface/vchiq_arm/vchiq_killable.h | 14 --
5 files changed, 15 insertions(+), 29 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index d0435a05ea35..0d987898b4f8 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -554,7 +554,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned
long arg)
ret = -EINVAL;
break;
}
- rc = mutex_lock_interruptible(&instance->state->mutex);
+ rc = mutex_lock_killable(&instance->state->mutex);
if (rc != 0) {
vchiq_log_error(vchiq_arm_log_level,
"vchiq: connect: could not lock mutex for "
diff --git
a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
index 5efc62ffb2f5..7ea29665bd0c 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_connected.c
@@ -72,7 +72,7 @@ void vchiq_add_connected_callback(VCHIQ_CONNECTED_CALLBACK_T
callback)
{
connected_init();
- if (mutex_lock_interruptible(&g_connected_mutex) != 0)
+ if (mutex_lock_killable(&g_connected_mutex) != 0)
return;
if (g_connected)
@@ -107,7 +107,7 @@ void vchiq_call_connected_callbacks(void)
connected_init();
- if (mutex_lock_interruptible(&g_connected_mutex) != 0)
+ if (mutex_lock_killable(&g_connected_mutex) != 0)
return;
for (i = 0; i < g_num_deferred_callbacks; i++)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
index 7440db2ce40b..028e90bc1cdc 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
@@ -794,7 +794,7 @@ queue_message(VCHIQ_STATE_T *state, VCHIQ_SERVICE_T
*service,
WARN_ON(!(stride <= VCHIQ_SLOT_SIZE));
if (!(flags & QMFLAGS_NO_MUTEX_LOCK) &&
- (mutex_lock_interruptible(&state->slot_mutex) != 0))
+ (mutex_lock_killable(&state->slot_mutex) != 0))
return VCHIQ_RETRY;
if (type == VCHIQ_MSG_DATA) {
@@ -863,7 +863,7 @@ queue_message(VCHIQ_STATE_T *state, VCHIQ_SERVICE_T
*service,
return VCHIQ_RETRY;
if (service->closing)
return VCHIQ_ERROR;
- if (mutex_lock_interruptible(&state->slot_mutex) != 0)
+ if (mutex_lock_killable(&state->slot_mutex) != 0)
return VCHIQ_RETRY;
if (service->srvstate != VCHIQ_SRVSTATE_OPEN) {
/* The service has been closed */
@@ -1033,7 +1033,7 @@ queue_message_sync(VCHIQ_STATE_T *state, VCHIQ_SERVICE_T
*service,
local = state->local;
if ((VCHIQ_MSG_TYPE(msgid) != VCHIQ_MSG_RESUME) &&
- (mutex_lock_interruptible(&state->sync_mutex) != 0))
+ (mutex_lock_killable(&state->sync_mutex) != 0))
return VCHIQ_RETRY;
remote_event_wait(state, &local->sync_release);
@@ -1365,7 +1365,7 @@ resolve_bulks(VCHIQ_SERVICE_T *service,
VCHIQ_BULK_QUEUE_T *queue)
WARN_ON(!((int)(queue->local_insert - queue->process) > 0));
WARN_ON(!((int)(queue->remote_insert - queue->process) > 0));
- rc = mutex_lock_interruptible(&state->bulk_transfer_mutex);
+ rc = mutex_lock_killable(&state->bulk_transfer_mutex);
