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drm/exynos: ipp: remove usless list_empty() functions
list_for_each_entry() handles empty lists, so there is no need to check whether the list is empty first. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Seong-Woo Kim <sw0312.kim@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
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@ -276,11 +276,6 @@ static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id)
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DRM_DEBUG_KMS("prop_id[%d]\n", prop_id);
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if (list_empty(&exynos_drm_ippdrv_list)) {
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DRM_DEBUG_KMS("ippdrv_list is empty.\n");
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return ERR_PTR(-ENODEV);
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}
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/*
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* This case is search ipp driver by prop_id handle.
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* sometimes, ipp subsystem find driver by prop_id.
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@ -289,11 +284,9 @@ static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id)
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list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
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DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n", count++, (int)ippdrv);
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if (!list_empty(&ippdrv->cmd_list)) {
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list_for_each_entry(c_node, &ippdrv->cmd_list, list)
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if (c_node->property.prop_id == prop_id)
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return ippdrv;
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}
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list_for_each_entry(c_node, &ippdrv->cmd_list, list)
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if (c_node->property.prop_id == prop_id)
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return ippdrv;
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}
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return ERR_PTR(-ENODEV);
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@ -573,11 +566,6 @@ static int ipp_check_mem_list(struct drm_exynos_ipp_cmd_node *c_node)
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/* source/destination memory list */
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head = &c_node->mem_list[i];
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if (list_empty(head)) {
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DRM_DEBUG_KMS("%s memory empty.\n", i ? "dst" : "src");
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continue;
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}
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/* find memory node entry */
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list_for_each_entry(m_node, head, list) {
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DRM_DEBUG_KMS("%s,count[%d]m_node[0x%x]\n",
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@ -816,11 +804,6 @@ static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node,
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struct drm_exynos_ipp_send_event *e, *te;
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int count = 0;
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if (list_empty(&c_node->event_list)) {
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DRM_DEBUG_KMS("event_list is empty.\n");
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return;
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}
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list_for_each_entry_safe(e, te, &c_node->event_list, base.link) {
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DRM_DEBUG_KMS("count[%d]e[0x%x]\n", count++, (int)e);
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@ -918,14 +901,12 @@ static void ipp_clean_queue_buf(struct drm_device *drm_dev,
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{
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struct drm_exynos_ipp_mem_node *m_node, *tm_node;
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if (!list_empty(&c_node->mem_list[qbuf->ops_id])) {
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/* delete list */
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list_for_each_entry_safe(m_node, tm_node,
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&c_node->mem_list[qbuf->ops_id], list) {
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if (m_node->buf_id == qbuf->buf_id &&
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m_node->ops_id == qbuf->ops_id)
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ipp_put_mem_node(drm_dev, c_node, m_node);
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}
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/* delete list */
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list_for_each_entry_safe(m_node, tm_node,
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&c_node->mem_list[qbuf->ops_id], list) {
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if (m_node->buf_id == qbuf->buf_id &&
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m_node->ops_id == qbuf->ops_id)
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ipp_put_mem_node(drm_dev, c_node, m_node);
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}
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}
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@ -1361,11 +1342,6 @@ static int ipp_stop_property(struct drm_device *drm_dev,
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/* source/destination memory list */
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head = &c_node->mem_list[i];
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if (list_empty(head)) {
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DRM_DEBUG_KMS("mem_list is empty.\n");
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break;
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}
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list_for_each_entry_safe(m_node, tm_node,
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head, list) {
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ret = ipp_put_mem_node(drm_dev, c_node,
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@ -1381,11 +1357,6 @@ static int ipp_stop_property(struct drm_device *drm_dev,
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/* destination memory list */
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head = &c_node->mem_list[EXYNOS_DRM_OPS_DST];
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if (list_empty(head)) {
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DRM_DEBUG_KMS("mem_list is empty.\n");
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break;
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}
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list_for_each_entry_safe(m_node, tm_node, head, list) {
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ret = ipp_put_mem_node(drm_dev, c_node, m_node);
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if (ret) {
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@ -1398,11 +1369,6 @@ static int ipp_stop_property(struct drm_device *drm_dev,
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/* source memory list */
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head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC];
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if (list_empty(head)) {
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DRM_DEBUG_KMS("mem_list is empty.\n");
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break;
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}
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list_for_each_entry_safe(m_node, tm_node, head, list) {
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ret = ipp_put_mem_node(drm_dev, c_node, m_node);
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if (ret) {
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@ -1790,15 +1756,7 @@ static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev,
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DRM_DEBUG_KMS("for priv[0x%x]\n", (int)priv);
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if (list_empty(&exynos_drm_ippdrv_list)) {
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DRM_DEBUG_KMS("ippdrv_list is empty.\n");
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goto err_clear;
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}
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list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) {
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if (list_empty(&ippdrv->cmd_list))
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continue;
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list_for_each_entry_safe(c_node, tc_node,
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&ippdrv->cmd_list, list) {
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DRM_DEBUG_KMS("count[%d]ippdrv[0x%x]\n",
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@ -1825,7 +1783,6 @@ static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev,
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}
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}
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err_clear:
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kfree(priv);
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return;
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}
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