Hi Daniel, I love your patch! Perhaps something to improve: [auto build test WARNING on drm-intel/for-linux-next] [also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master drm/drm-next v5.10-rc1 next-20201028] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Daniel-Vetter/fbcon-Disable-accelerated-scrolling/20201029-181618 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: sparc64-randconfig-r005-20201029 (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/b457f0ea024ca7202fa63f5a94f9d5abf65529f8 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Daniel-Vetter/fbcon-Disable-accelerated-scrolling/20201029-181618 git checkout b457f0ea024ca7202fa63f5a94f9d5abf65529f8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/video/fbdev/core/fbcon.c: In function 'fbcon_init': >> drivers/video/fbdev/core/fbcon.c:1089:6: warning: variable 'cap' set but not used [-Wunused-but-set-variable] 1089 | int cap, ret; | ^~~ drivers/video/fbdev/core/fbcon.c: In function 'fbcon_exit': drivers/video/fbdev/core/fbcon.c:3646:7: warning: variable 'pending' set but not used [-Wunused-but-set-variable] 3646 | int pending = 0; | ^~~~~~~ vim +/cap +1089 drivers/video/fbdev/core/fbcon.c ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1080 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1081 static void fbcon_init(struct vc_data *vc, int init) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1082 { 1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1083 struct fb_info *info; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1084 struct fbcon_ops *ops; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1085 struct vc_data **default_mode = vc->vc_display_fg; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1086 struct vc_data *svc = *default_mode; 50233393f0cf9b drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1087 struct fbcon_display *t, *p = &fb_display[vc->vc_num]; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1088 int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256; 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 @1089 int cap, ret; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1090 1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1091 if (WARN_ON(info_idx == -1)) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1092 return; 306958e8e8d150 drivers/video/console/fbcon.c Adrian Bunk 2005-05-01 1093 1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1094 if (con2fb_map[vc->vc_num] == -1) 1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1095 con2fb_map[vc->vc_num] = info_idx; 1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1096 1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1097 info = registered_fb[con2fb_map[vc->vc_num]]; 306958e8e8d150 drivers/video/console/fbcon.c Adrian Bunk 2005-05-01 1098 cap = info->flags; 306958e8e8d150 drivers/video/console/fbcon.c Adrian Bunk 2005-05-01 1099 3c5a1b111373e6 drivers/video/fbdev/core/fbcon.c Andreas Schwab 2019-05-06 1100 if (logo_shown < 0 && console_loglevel <= CONSOLE_LOGLEVEL_QUIET) 10993504d64735 drivers/video/fbdev/core/fbcon.c Prarit Bhargava 2019-02-08 1101 logo_shown = FBCON_LOGO_DONTSHOW; 10993504d64735 drivers/video/fbdev/core/fbcon.c Prarit Bhargava 2019-02-08 1102 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1103 if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW || ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1104 (info->fix.type == FB_TYPE_TEXT)) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1105 logo = 0; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1106 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1107 if (var_to_display(p, &info->var, info)) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1108 return; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1109 d1baa4ffa677bf drivers/video/console/fbcon.c Antonino A. Daplas 2007-07-17 1110 if (!info->fbcon_par) d1baa4ffa677bf drivers/video/console/fbcon.c Antonino A. Daplas 2007-07-17 1111 con2fb_acquire_newinfo(vc, info, vc->vc_num, -1); d1baa4ffa677bf drivers/video/console/fbcon.c Antonino A. Daplas 2007-07-17 1112 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1113 /* If we are not the first console on this ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1114 fb, copy the font from that console */ e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1115 t = &fb_display[fg_console]; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1116 if (!p->fontdata) { e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1117 if (t->fontdata) { e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1118 struct vc_data *fvc = vc_cons[fg_console].d; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1119 e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1120 vc->vc_font.data = (void *)(p->fontdata = e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1121 fvc->vc_font.data); e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1122 vc->vc_font.width = fvc->vc_font.width; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1123 vc->vc_font.height = fvc->vc_font.height; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1124 p->userfont = t->userfont; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1125 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1126 if (p->userfont) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1127 REFCOUNT(p->fontdata)++; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1128 } else { e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1129 const struct font_desc *font = NULL; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1130 e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1131 if (!fontname[0] || !(font = find_font(fontname))) e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1132 font = get_default_font(info->var.xres, 2d2699d9849248 drivers/video/console/fbcon.c Antonino A. Daplas 2007-05-08 1133 info->var.yres, 2d2699d9849248 drivers/video/console/fbcon.c Antonino A. Daplas 2007-05-08 1134 info->pixmap.blit_x, 2d2699d9849248 drivers/video/console/fbcon.c Antonino A. Daplas 2007-05-08 1135 info->pixmap.blit_y); e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1136 vc->vc_font.width = font->width; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1137 vc->vc_font.height = font->height; e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1138 vc->vc_font.data = (void *)(p->fontdata = font->data); e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1139 vc->vc_font.charcount = 256; /* FIXME Need to e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1140 support more fonts */ ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1141 } e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1142 } e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1143 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1144 if (p->userfont) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1145 charcnt = FNTCHARCNT(p->fontdata); e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1146 b8c909454f046b drivers/video/console/fbcon.c Antonino A. Daplas 2005-09-09 1147 vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1); ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1148 vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1149 if (charcnt == 256) { ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1150 vc->vc_hi_font_mask = 0; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1151 } else { ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1152 vc->vc_hi_font_mask = 0x100; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1153 if (vc->vc_can_do_color) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1154 vc->vc_complement_mask <<= 1; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1155 } ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1156 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1157 if (!*svc->vc_uni_pagedir_loc) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1158 con_set_default_unimap(svc); ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1159 if (!*vc->vc_uni_pagedir_loc) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1160 con_copy_unimap(vc, svc); ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1161 e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1162 ops = info->fbcon_par; f235f664a8afab drivers/video/console/fbcon.c Scot Doyle 2015-10-09 1163 ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms); c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1164 2428e59b530928 drivers/video/console/fbcon.c Marcin Slusarz 2008-02-06 1165 p->con_rotate = initial_rotation; c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1166 if (p->con_rotate == -1) c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1167 p->con_rotate = info->fbcon_rotate_hint; c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1168 if (p->con_rotate == -1) f2f4946b0adfd6 drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1169 p->con_rotate = FB_ROTATE_UR; c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1170 b73deed32d0874 drivers/video/console/fbcon.c Antonino A. Daplas 2006-01-09 1171 set_blitting_type(vc, info); e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1172 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1173 cols = vc->vc_cols; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1174 rows = vc->vc_rows; e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1175 new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres); e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1176 new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres); e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1177 new_cols /= vc->vc_font.width; e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1178 new_rows /= vc->vc_font.height; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1179 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1180 /* ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1181 * We must always set the mode. The mode of the previous console ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1182 * driver could be in the same resolution but we are using different ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1183 * hardware so we have to initialize the hardware. ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1184 * ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1185 * We need to do it in fbcon_init() to prevent screen corruption. ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1186 */ 6ca8dfd78187d8 drivers/video/console/fbcon.c Jiri Slaby 2016-06-23 1187 if (con_is_visible(vc) && vc->vc_mode == KD_TEXT) { ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1188 if (info->fbops->fb_set_par && 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1189 !(ops->flags & FBCON_FLAGS_INIT)) { 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1190 ret = info->fbops->fb_set_par(info); 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1191 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1192 if (ret) 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1193 printk(KERN_ERR "fbcon_init: detected " 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1194 "unhandled fb_set_par error, " 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1195 "error code %d\n", ret); 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1196 } 0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1197 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1198 ops->flags |= FBCON_FLAGS_INIT; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1199 } ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1200 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1201 ops->graphics = 0; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1202 b457f0ea024ca7 drivers/video/fbdev/core/fbcon.c Daniel Vetter 2020-10-29 1203 /* b457f0ea024ca7 drivers/video/fbdev/core/fbcon.c Daniel Vetter 2020-10-29 1204 * No more hw acceleration for fbcon. b457f0ea024ca7 drivers/video/fbdev/core/fbcon.c Daniel Vetter 2020-10-29 1205 * b457f0ea024ca7 drivers/video/fbdev/core/fbcon.c Daniel Vetter 2020-10-29 1206 * FIXME: Garbage collect all the now dead code after sufficient time b457f0ea024ca7 drivers/video/fbdev/core/fbcon.c Daniel Vetter 2020-10-29 1207 * has passed. b457f0ea024ca7 drivers/video/fbdev/core/fbcon.c Daniel Vetter 2020-10-29 1208 */ ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1209 p->scrollmode = SCROLL_REDRAW; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1210 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1211 /* ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1212 * ++guenther: console.c:vc_allocate() relies on initializing ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1213 * vc_{cols,rows}, but we must not set those if we are only ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1214 * resizing the console. ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1215 */ 0035fe00f77d2b drivers/video/console/fbcon.c Johannes Weiner 2009-08-06 1216 if (init) { ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1217 vc->vc_cols = new_cols; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1218 vc->vc_rows = new_rows; 0035fe00f77d2b drivers/video/console/fbcon.c Johannes Weiner 2009-08-06 1219 } else 0035fe00f77d2b drivers/video/console/fbcon.c Johannes Weiner 2009-08-06 1220 vc_resize(vc, new_cols, new_rows); ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1221 ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1222 if (logo) ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1223 fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1224 4d9c5b6eb42d9e drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-07 1225 if (vc == svc && softback_buf) 4d9c5b6eb42d9e drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-07 1226 fbcon_update_softback(vc); e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1227 b73deed32d0874 drivers/video/console/fbcon.c Antonino A. Daplas 2006-01-09 1228 if (ops->rotate_font && ops->rotate_font(info, vc)) { e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1229 ops->rotate = FB_ROTATE_UR; b73deed32d0874 drivers/video/console/fbcon.c Antonino A. Daplas 2006-01-09 1230 set_blitting_type(vc, info); e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1231 } e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1232 1a37d5f51020b9 drivers/video/console/fbcon.c Antonino A. Daplas 2006-03-31 1233 ops->p = &fb_display[fg_console]; ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1234 } ^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1235 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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