Better use recently introduced kernel core helper.

Signed-off-by: Andrzej Hajda <andrzej.ha...@intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_pages.c             | 4 ++--
 drivers/gpu/drm/i915/gem/i915_gem_stolen.c            | 2 +-
 drivers/gpu/drm/i915/gem/i915_gem_ttm.c               | 6 +++---
 drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 4 ++--
 drivers/gpu/drm/i915/i915_hwmon.c                     | 2 +-
 drivers/gpu/drm/i915/i915_perf.c                      | 2 +-
 drivers/gpu/drm/i915/i915_query.c                     | 2 +-
 drivers/gpu/drm/i915/i915_request.c                   | 4 ++--
 drivers/gpu/drm/i915/i915_vma.c                       | 2 +-
 drivers/gpu/drm/i915/intel_memory_region.c            | 2 +-
 drivers/gpu/drm/i915/intel_uncore.c                   | 4 ++--
 drivers/gpu/drm/i915/intel_wakeref.c                  | 4 ++--
 drivers/gpu/drm/i915/pxp/intel_pxp.c                  | 2 +-
 drivers/gpu/drm/i915/pxp/intel_pxp_session.c          | 4 ++--
 drivers/gpu/drm/i915/pxp/intel_pxp_tee.c              | 2 +-
 15 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c 
b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
index 05a27723ebb8cb..5498bd00ffd5e1 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
@@ -209,7 +209,7 @@ __i915_gem_object_unset_pages(struct drm_i915_gem_object 
*obj)
 
        assert_object_held_shared(obj);
 
-       pages = fetch_and_zero(&obj->mm.pages);
+       pages = exchange(&obj->mm.pages, NULL);
        if (IS_ERR_OR_NULL(pages))
                return pages;
 
@@ -515,7 +515,7 @@ void __i915_gem_object_release_map(struct 
drm_i915_gem_object *obj)
         * Furthermore, since this is an unsafe operation reserved only
         * for construction time manipulation, we ignore locking prudence.
         */
-       unmap_object(obj, page_mask_bits(fetch_and_zero(&obj->mm.mapping)));
+       unmap_object(obj, page_mask_bits(exchange(&obj->mm.mapping, 0)));
 
        i915_gem_object_unpin_map(obj);
 }
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c 
b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index bc952107880734..6901b2529d1b29 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -652,7 +652,7 @@ static void
 i915_gem_object_release_stolen(struct drm_i915_gem_object *obj)
 {
        struct drm_i915_private *i915 = to_i915(obj->base.dev);
-       struct drm_mm_node *stolen = fetch_and_zero(&obj->stolen);
+       struct drm_mm_node *stolen = exchange(&obj->stolen, NULL);
 
        GEM_BUG_ON(!stolen);
        i915_gem_stolen_remove_node(i915, stolen);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c 
b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 5247d88b3c13e6..075112ebe30247 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -447,7 +447,7 @@ int i915_ttm_purge(struct drm_i915_gem_object *obj)
                 */
                shmem_truncate_range(file_inode(i915_tt->filp),
                                     0, (loff_t)-1);
-               fput(fetch_and_zero(&i915_tt->filp));
+               fput(exchange(&i915_tt->filp, 0));
        }
 
        obj->write_domain = 0;
@@ -779,7 +779,7 @@ static int __i915_ttm_get_pages(struct drm_i915_gem_object 
*obj,
        int ret;
 
        /* First try only the requested placement. No eviction. */
-       real_num_busy = fetch_and_zero(&placement->num_busy_placement);
+       real_num_busy = exchange(&placement->num_busy_placement, 0);
        ret = ttm_bo_validate(bo, placement, &ctx);
        if (ret) {
                ret = i915_ttm_err_to_gem(ret);
@@ -905,7 +905,7 @@ static void i915_ttm_put_pages(struct drm_i915_gem_object 
*obj,
         */
 
        if (obj->mm.rsgt)
-               i915_refct_sgt_put(fetch_and_zero(&obj->mm.rsgt));
+               i915_refct_sgt_put(exchange(&obj->mm.rsgt, 0));
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c 
b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index ac02fb03659208..4d456f74d5d901 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -615,7 +615,7 @@ static void throttle_release(struct i915_request **q, int 
count)
                if (IS_ERR_OR_NULL(q[i]))
                        continue;
 
-               i915_request_put(fetch_and_zero(&q[i]));
+               i915_request_put(exchange(&q[i], 0));
        }
 }
 
@@ -1072,7 +1072,7 @@ __sseu_prepare(const char *name,
 err_fini:
        igt_spinner_fini(*spin);
 err_free:
-       kfree(fetch_and_zero(spin));
+       kfree(exchange(spin, 0));
        return ret;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_hwmon.c 
b/drivers/gpu/drm/i915/i915_hwmon.c
index cca7a4350ec8fd..c9d02f1124a067 100644
--- a/drivers/gpu/drm/i915/i915_hwmon.c
+++ b/drivers/gpu/drm/i915/i915_hwmon.c
@@ -732,5 +732,5 @@ void i915_hwmon_register(struct drm_i915_private *i915)
 
 void i915_hwmon_unregister(struct drm_i915_private *i915)
 {
-       fetch_and_zero(&i915->hwmon);
+       exchange(&i915->hwmon, 0);
 }
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index d22f30dd4fba27..d8b412e75b6079 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1535,7 +1535,7 @@ static void oa_put_render_ctx_id(struct i915_perf_stream 
*stream)
 {
        struct intel_context *ce;
 
-       ce = fetch_and_zero(&stream->pinned_ctx);
+       ce = exchange(&stream->pinned_ctx, NULL);
        if (ce) {
                ce->tag = 0; /* recomputed on next submission after parking */
                intel_context_unpin(ce);
diff --git a/drivers/gpu/drm/i915/i915_query.c 
b/drivers/gpu/drm/i915/i915_query.c
index 00871ef9979204..ace0f6f98a430b 100644
--- a/drivers/gpu/drm/i915/i915_query.c
+++ b/drivers/gpu/drm/i915/i915_query.c
@@ -404,7 +404,7 @@ static int query_perf_config_list(struct drm_i915_private 
*i915,
                if (!ids)
                        return -ENOMEM;
 
-               alloc = fetch_and_zero(&n_configs);
+               alloc = exchange(&n_configs, 0);
 
                ids[n_configs++] = 1ull; /* reserved for test_config */
                rcu_read_lock();
diff --git a/drivers/gpu/drm/i915/i915_request.c 
b/drivers/gpu/drm/i915/i915_request.c
index f949a9495758a0..9173b6c33d03c4 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -117,7 +117,7 @@ static void i915_fence_release(struct dma_fence *fence)
        GEM_BUG_ON(rq->guc_prio != GUC_PRIO_INIT &&
                   rq->guc_prio != GUC_PRIO_FINI);
 
-       i915_request_free_capture_list(fetch_and_zero(&rq->capture_list));
+       i915_request_free_capture_list(exchange(&rq->capture_list, 0));
        if (rq->batch_res) {
                i915_vma_resource_put(rq->batch_res);
                rq->batch_res = NULL;
@@ -1948,7 +1948,7 @@ static void request_wait_wake(struct dma_fence *fence, 
struct dma_fence_cb *cb)
 {
        struct request_wait *wait = container_of(cb, typeof(*wait), cb);
 
-       wake_up_process(fetch_and_zero(&wait->tsk));
+       wake_up_process(exchange(&wait->tsk, 0));
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 34f0e6c923c26d..d3498314357073 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -635,7 +635,7 @@ void i915_vma_unpin_and_release(struct i915_vma **p_vma, 
unsigned int flags)
        struct i915_vma *vma;
        struct drm_i915_gem_object *obj;
 
-       vma = fetch_and_zero(p_vma);
+       vma = exchange(p_vma, NULL);
        if (!vma)
                return;
 
diff --git a/drivers/gpu/drm/i915/intel_memory_region.c 
b/drivers/gpu/drm/i915/intel_memory_region.c
index 9a4a7fb55582db..95d3ca1aa9a8f1 100644
--- a/drivers/gpu/drm/i915/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/intel_memory_region.c
@@ -367,7 +367,7 @@ void intel_memory_regions_driver_release(struct 
drm_i915_private *i915)
 
        for (i = 0; i < ARRAY_SIZE(i915->mm.regions); i++) {
                struct intel_memory_region *region =
-                       fetch_and_zero(&i915->mm.regions[i]);
+                       exchange(&i915->mm.regions[i], NULL);
 
                if (region)
                        intel_memory_region_destroy(region);
diff --git a/drivers/gpu/drm/i915/intel_uncore.c 
b/drivers/gpu/drm/i915/intel_uncore.c
index 614013745fcafe..c86abf1755039a 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -627,7 +627,7 @@ void intel_uncore_resume_early(struct intel_uncore *uncore)
        if (!intel_uncore_has_forcewake(uncore))
                return;
 
-       restore_forcewake = fetch_and_zero(&uncore->fw_domains_saved);
+       restore_forcewake = exchange(&uncore->fw_domains_saved, 0);
        forcewake_early_sanitize(uncore, restore_forcewake);
 
        iosf_mbi_register_pmic_bus_access_notifier(&uncore->pmic_bus_access_nb);
@@ -2249,7 +2249,7 @@ static void fw_domain_fini(struct intel_uncore *uncore,
 
        GEM_BUG_ON(domain_id >= FW_DOMAIN_ID_COUNT);
 
-       d = fetch_and_zero(&uncore->fw_domain[domain_id]);
+       d = exchange(&uncore->fw_domain[domain_id], NULL);
        if (!d)
                return;
 
diff --git a/drivers/gpu/drm/i915/intel_wakeref.c 
b/drivers/gpu/drm/i915/intel_wakeref.c
index dfd87d08221807..01ee7713e8171b 100644
--- a/drivers/gpu/drm/i915/intel_wakeref.c
+++ b/drivers/gpu/drm/i915/intel_wakeref.c
@@ -16,7 +16,7 @@ static void rpm_get(struct intel_wakeref *wf)
 
 static void rpm_put(struct intel_wakeref *wf)
 {
-       intel_wakeref_t wakeref = fetch_and_zero(&wf->wakeref);
+       intel_wakeref_t wakeref = exchange(&wf->wakeref, 0);
 
        intel_runtime_pm_put(wf->rpm, wakeref);
        INTEL_WAKEREF_BUG_ON(!wakeref);
@@ -134,7 +134,7 @@ static void wakeref_auto_timeout(struct timer_list *t)
        if (!refcount_dec_and_lock_irqsave(&wf->count, &wf->lock, &flags))
                return;
 
-       wakeref = fetch_and_zero(&wf->wakeref);
+       wakeref = exchange(&wf->wakeref, 0);
        spin_unlock_irqrestore(&wf->lock, flags);
 
        intel_runtime_pm_put(wf->rpm, wakeref);
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp.c 
b/drivers/gpu/drm/i915/pxp/intel_pxp.c
index 5efe61f6754601..d2c13bf7e9acf2 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp.c
@@ -104,7 +104,7 @@ static int create_vcs_context(struct intel_pxp *pxp)
 static void destroy_vcs_context(struct intel_pxp *pxp)
 {
        if (pxp->ce)
-               intel_engine_destroy_pinned_context(fetch_and_zero(&pxp->ce));
+               intel_engine_destroy_pinned_context(exchange(&pxp->ce, 0));
 }
 
 static void pxp_init_full(struct intel_pxp *pxp)
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c 
b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
index 85572360c71a99..89e37ebb93b0ab 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_session.c
@@ -132,7 +132,7 @@ static void pxp_terminate(struct intel_pxp *pxp)
 static void pxp_terminate_complete(struct intel_pxp *pxp)
 {
        /* Re-create the arb session after teardown handle complete */
-       if (fetch_and_zero(&pxp->hw_state_invalidated))
+       if (exchange(&pxp->hw_state_invalidated, 0))
                pxp_create_arb_session(pxp);
 
        complete_all(&pxp->termination);
@@ -146,7 +146,7 @@ static void pxp_session_work(struct work_struct *work)
        u32 events = 0;
 
        spin_lock_irq(gt->irq_lock);
-       events = fetch_and_zero(&pxp->session_events);
+       events = exchange(&pxp->session_events, 0);
        spin_unlock_irq(gt->irq_lock);
 
        if (!events)
diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c 
b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
index b0c9170b139542..345656515b8f0e 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_tee.c
@@ -231,7 +231,7 @@ static int alloc_streaming_command(struct intel_pxp *pxp)
 
 static void free_streaming_command(struct intel_pxp *pxp)
 {
-       struct drm_i915_gem_object *obj = fetch_and_zero(&pxp->stream_cmd.obj);
+       struct drm_i915_gem_object *obj = exchange(&pxp->stream_cmd.obj, NULL);
 
        if (!obj)
                return;
-- 
2.34.1

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