Hi Daniel, I love your patch! Yet something to improve: [auto build test ERROR on drm/drm-next] [also build test ERROR on v4.15-rc8 next-20180119] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Daniel-Vetter/drm-arcpgu-remove-drm_encoder_slave/20180120-085901 base: git://people.freedesktop.org/~airlied/linux.git drm-next config: x86_64-randconfig-x008-201802 (attached as .config) compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/gpu//drm/arc/arcpgu_sim.c: In function 'arcpgu_drm_sim_init': >> drivers/gpu//drm/arc/arcpgu_sim.c:116:22: error: passing argument 1 of 'drm_encoder_cleanup' from incompatible pointer type [-Werror=incompatible-pointer-types] drm_encoder_cleanup(&encoder->base); ^ In file included from include/drm/drm_modeset_helper_vtables.h:33:0, from include/drm/drm_crtc_helper.h:43, from drivers/gpu//drm/arc/arcpgu_sim.c:17: include/drm/drm_encoder.h:232:6: note: expected 'struct drm_encoder *' but argument is of type 'struct drm_mode_object *' void drm_encoder_cleanup(struct drm_encoder *encoder); ^~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/drm_encoder_cleanup +116 drivers/gpu//drm/arc/arcpgu_sim.c a189d28e Ruud Derwig 2016-06-06 66 a189d28e Ruud Derwig 2016-06-06 67 int arcpgu_drm_sim_init(struct drm_device *drm, struct device_node *np) a189d28e Ruud Derwig 2016-06-06 68 { a189d28e Ruud Derwig 2016-06-06 69 struct arcpgu_drm_connector *arcpgu_connector; 70fbd4a0 Daniel Vetter 2018-01-17 70 struct drm_encoder *encoder; a189d28e Ruud Derwig 2016-06-06 71 struct drm_connector *connector; a189d28e Ruud Derwig 2016-06-06 72 int ret; a189d28e Ruud Derwig 2016-06-06 73 a189d28e Ruud Derwig 2016-06-06 74 encoder = devm_kzalloc(drm->dev, sizeof(*encoder), GFP_KERNEL); a189d28e Ruud Derwig 2016-06-06 75 if (encoder == NULL) a189d28e Ruud Derwig 2016-06-06 76 return -ENOMEM; a189d28e Ruud Derwig 2016-06-06 77 70fbd4a0 Daniel Vetter 2018-01-17 78 encoder->possible_crtcs = 1; 70fbd4a0 Daniel Vetter 2018-01-17 79 encoder->possible_clones = 0; a189d28e Ruud Derwig 2016-06-06 80 70fbd4a0 Daniel Vetter 2018-01-17 81 ret = drm_encoder_init(drm, encoder, &arcpgu_drm_encoder_funcs, a189d28e Ruud Derwig 2016-06-06 82 DRM_MODE_ENCODER_VIRTUAL, NULL); a189d28e Ruud Derwig 2016-06-06 83 if (ret) a189d28e Ruud Derwig 2016-06-06 84 return ret; a189d28e Ruud Derwig 2016-06-06 85 a189d28e Ruud Derwig 2016-06-06 86 arcpgu_connector = devm_kzalloc(drm->dev, sizeof(*arcpgu_connector), a189d28e Ruud Derwig 2016-06-06 87 GFP_KERNEL); a189d28e Ruud Derwig 2016-06-06 88 if (!arcpgu_connector) { a189d28e Ruud Derwig 2016-06-06 89 ret = -ENOMEM; a189d28e Ruud Derwig 2016-06-06 90 goto error_encoder_cleanup; a189d28e Ruud Derwig 2016-06-06 91 } a189d28e Ruud Derwig 2016-06-06 92 a189d28e Ruud Derwig 2016-06-06 93 connector = &arcpgu_connector->connector; a189d28e Ruud Derwig 2016-06-06 94 drm_connector_helper_add(connector, &arcpgu_drm_connector_helper_funcs); a189d28e Ruud Derwig 2016-06-06 95 a189d28e Ruud Derwig 2016-06-06 96 ret = drm_connector_init(drm, connector, &arcpgu_drm_connector_funcs, a189d28e Ruud Derwig 2016-06-06 97 DRM_MODE_CONNECTOR_VIRTUAL); a189d28e Ruud Derwig 2016-06-06 98 if (ret < 0) { a189d28e Ruud Derwig 2016-06-06 99 dev_err(drm->dev, "failed to initialize drm connector\n"); a189d28e Ruud Derwig 2016-06-06 100 goto error_encoder_cleanup; a189d28e Ruud Derwig 2016-06-06 101 } a189d28e Ruud Derwig 2016-06-06 102 70fbd4a0 Daniel Vetter 2018-01-17 103 ret = drm_mode_connector_attach_encoder(connector, encoder); a189d28e Ruud Derwig 2016-06-06 104 if (ret < 0) { a189d28e Ruud Derwig 2016-06-06 105 dev_err(drm->dev, "could not attach connector to encoder\n"); a189d28e Ruud Derwig 2016-06-06 106 drm_connector_unregister(connector); a189d28e Ruud Derwig 2016-06-06 107 goto error_connector_cleanup; a189d28e Ruud Derwig 2016-06-06 108 } a189d28e Ruud Derwig 2016-06-06 109 a189d28e Ruud Derwig 2016-06-06 110 return 0; a189d28e Ruud Derwig 2016-06-06 111 a189d28e Ruud Derwig 2016-06-06 112 error_connector_cleanup: a189d28e Ruud Derwig 2016-06-06 113 drm_connector_cleanup(connector); a189d28e Ruud Derwig 2016-06-06 114 a189d28e Ruud Derwig 2016-06-06 115 error_encoder_cleanup: a189d28e Ruud Derwig 2016-06-06 @116 drm_encoder_cleanup(&encoder->base); :::::: The code at line 116 was first introduced by commit :::::: a189d28e5edea70f20995547ddc84c79b2f76c03 drm/arcpgu: Make ARC PGU usable on simulation platforms :::::: TO: Ruud Derwig <rderwig@xxxxxxxxxxxx> :::::: CC: Alexey Brodkin <abrodkin@xxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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