From 21c76bd19e0c4b780474fe7cb285766edc9715f0 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 18 Jan 2019 13:20:12 +0100 Subject: [PATCH] drm/qxl: use qxl_num_crtc directly MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit qdev->monitors_config->max_allowed is effectively set by the qxl.num_heads module parameter, stored in the qxl_num_crtc variable. Lets get rid of the indirection and use the variable qxl_num_crtc directly. The kernel doesn't need to dereference pointers each time it needs the value, and when reading the code you don't have to trace where and why qdev->monitors_config->max_allowed is set. Signed-off-by: Gerd Hoffmann Acked-by: Noralf Trønnes Link: http://patchwork.freedesktop.org/patch/msgid/20190118122020.27596-16-kraxel@redhat.com --- drivers/gpu/drm/qxl/qxl_display.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c index 3f2e253f7244..a18afd21cc41 100644 --- a/drivers/gpu/drm/qxl/qxl_display.c +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -80,10 +80,10 @@ static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev) DRM_DEBUG_KMS("no client monitors configured\n"); return status; } - if (num_monitors > qdev->monitors_config->max_allowed) { + if (num_monitors > qxl_num_crtc) { DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n", - qdev->monitors_config->max_allowed, num_monitors); - num_monitors = qdev->monitors_config->max_allowed; + qxl_num_crtc, num_monitors); + num_monitors = qxl_num_crtc; } else { num_monitors = qdev->rom->client_monitors_config.count; } @@ -96,8 +96,7 @@ static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev) return status; } /* we copy max from the client but it isn't used */ - qdev->client_monitors_config->max_allowed = - qdev->monitors_config->max_allowed; + qdev->client_monitors_config->max_allowed = qxl_num_crtc; for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) { struct qxl_urect *c_rect = &qdev->rom->client_monitors_config.heads[i]; @@ -204,7 +203,7 @@ static int qxl_add_monitors_config_modes(struct drm_connector *connector, if (!qdev->monitors_config) return 0; - if (h >= qdev->monitors_config->max_allowed) + if (h >= qxl_num_crtc) return 0; if (!qdev->client_monitors_config) return 0; @@ -307,8 +306,7 @@ static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc, return; } - if (!qdev->monitors_config || - qdev->monitors_config->max_allowed <= i) + if (!qdev->monitors_config || qxl_num_crtc <= i) return; head.id = i; @@ -350,9 +348,10 @@ static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc, if (oldcount != qdev->monitors_config->count) DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n", oldcount, qdev->monitors_config->count, - qdev->monitors_config->max_allowed); + qxl_num_crtc); qdev->monitors_config->heads[i] = head; + qdev->monitors_config->max_allowed = qxl_num_crtc; qxl_send_monitors_config(qdev); } @@ -1146,9 +1145,8 @@ int qxl_create_monitors_object(struct qxl_device *qdev) { int ret; struct drm_gem_object *gobj; - int max_allowed = qxl_num_crtc; int monitors_config_size = sizeof(struct qxl_monitors_config) + - max_allowed * sizeof(struct qxl_head); + qxl_num_crtc * sizeof(struct qxl_head); ret = qxl_gem_object_create(qdev, monitors_config_size, 0, QXL_GEM_DOMAIN_VRAM, @@ -1170,9 +1168,8 @@ int qxl_create_monitors_object(struct qxl_device *qdev) qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0); memset(qdev->monitors_config, 0, monitors_config_size); - qdev->monitors_config->max_allowed = max_allowed; - - qdev->dumb_heads = kcalloc(max_allowed, sizeof(qdev->dumb_heads[0]), GFP_KERNEL); + qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]), + GFP_KERNEL); if (!qdev->dumb_heads) { qxl_destroy_monitors_object(qdev); return -ENOMEM; -- 2.30.2