[linux-stable-rc:queue/5.10 9399/9999] drivers/video/fbdev/core/fbcon.c:1036:6: warning: variable 'cap' set but not used

From: kernel test robot
Date: Sat Mar 19 2022 - 17:18:20 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/5.10
head: 9b118919119ad8c625aca9ba42d836bbacea026a
commit: 57e8859acc6024ca9041f7fa58a0afed2ed6ea87 [9399/9999] fbcon: Add option to enable legacy hardware acceleration
config: x86_64-kexec (https://download.01.org/0day-ci/archive/20220320/202203200530.lG8DJ5qi-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=57e8859acc6024ca9041f7fa58a0afed2ed6ea87
git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
git fetch --no-tags linux-stable-rc queue/5.10
git checkout 57e8859acc6024ca9041f7fa58a0afed2ed6ea87
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/video/fbdev/core/

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:1036:6: warning: variable 'cap' set but not used [-Wunused-but-set-variable]
1036 | int cap, ret;
| ^~~
drivers/video/fbdev/core/fbcon.c: In function 'fbcon_exit':
drivers/video/fbdev/core/fbcon.c:3370:7: warning: variable 'pending' set but not used [-Wunused-but-set-variable]
3370 | int pending = 0;
| ^~~~~~~

vim +/cap +1036 drivers/video/fbdev/core/fbcon.c

^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1027
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1028 static void fbcon_init(struct vc_data *vc, int init)
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1029 {
1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1030 struct fb_info *info;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1031 struct fbcon_ops *ops;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1032 struct vc_data **default_mode = vc->vc_display_fg;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1033 struct vc_data *svc = *default_mode;
50233393f0cf9b drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1034 struct fbcon_display *t, *p = &fb_display[vc->vc_num];
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1035 int logo = 1, new_rows, new_cols, rows, cols, charcnt = 256;
460f6b1a238d2e drivers/video/fbdev/core/fbcon.c Helge Deller 2022-02-02 @1036 int cap, ret;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1037
1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1038 if (WARN_ON(info_idx == -1))
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1039 return;
306958e8e8d150 drivers/video/console/fbcon.c Adrian Bunk 2005-05-01 1040
1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1041 if (con2fb_map[vc->vc_num] == -1)
1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1042 con2fb_map[vc->vc_num] = info_idx;
1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1043
1f4ed2fb01f80f drivers/video/fbdev/core/fbcon.c Daniel Vetter 2019-05-28 1044 info = registered_fb[con2fb_map[vc->vc_num]];
460f6b1a238d2e drivers/video/fbdev/core/fbcon.c Helge Deller 2022-02-02 1045 cap = info->flags;
306958e8e8d150 drivers/video/console/fbcon.c Adrian Bunk 2005-05-01 1046
3c5a1b111373e6 drivers/video/fbdev/core/fbcon.c Andreas Schwab 2019-05-06 1047 if (logo_shown < 0 && console_loglevel <= CONSOLE_LOGLEVEL_QUIET)
10993504d64735 drivers/video/fbdev/core/fbcon.c Prarit Bhargava 2019-02-08 1048 logo_shown = FBCON_LOGO_DONTSHOW;
10993504d64735 drivers/video/fbdev/core/fbcon.c Prarit Bhargava 2019-02-08 1049
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1050 if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW ||
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1051 (info->fix.type == FB_TYPE_TEXT))
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1052 logo = 0;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1053
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1054 if (var_to_display(p, &info->var, info))
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1055 return;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1056
d1baa4ffa677bf drivers/video/console/fbcon.c Antonino A. Daplas 2007-07-17 1057 if (!info->fbcon_par)
d1baa4ffa677bf drivers/video/console/fbcon.c Antonino A. Daplas 2007-07-17 1058 con2fb_acquire_newinfo(vc, info, vc->vc_num, -1);
d1baa4ffa677bf drivers/video/console/fbcon.c Antonino A. Daplas 2007-07-17 1059
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1060 /* If we are not the first console on this
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1061 fb, copy the font from that console */
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1062 t = &fb_display[fg_console];
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1063 if (!p->fontdata) {
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1064 if (t->fontdata) {
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1065 struct vc_data *fvc = vc_cons[fg_console].d;
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1066
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1067 vc->vc_font.data = (void *)(p->fontdata =
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1068 fvc->vc_font.data);
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1069 vc->vc_font.width = fvc->vc_font.width;
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1070 vc->vc_font.height = fvc->vc_font.height;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1071 p->userfont = t->userfont;
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1072
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1073 if (p->userfont)
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1074 REFCOUNT(p->fontdata)++;
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1075 } else {
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1076 const struct font_desc *font = NULL;
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1077
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1078 if (!fontname[0] || !(font = find_font(fontname)))
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1079 font = get_default_font(info->var.xres,
2d2699d9849248 drivers/video/console/fbcon.c Antonino A. Daplas 2007-05-08 1080 info->var.yres,
2d2699d9849248 drivers/video/console/fbcon.c Antonino A. Daplas 2007-05-08 1081 info->pixmap.blit_x,
2d2699d9849248 drivers/video/console/fbcon.c Antonino A. Daplas 2007-05-08 1082 info->pixmap.blit_y);
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1083 vc->vc_font.width = font->width;
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1084 vc->vc_font.height = font->height;
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1085 vc->vc_font.data = (void *)(p->fontdata = font->data);
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1086 vc->vc_font.charcount = 256; /* FIXME Need to
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1087 support more fonts */
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1088 }
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1089 }
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1090
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1091 if (p->userfont)
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1092 charcnt = FNTCHARCNT(p->fontdata);
e614b18dcedb24 drivers/video/console/fbcon.c Antonino A. Daplas 2006-06-26 1093
b8c909454f046b drivers/video/console/fbcon.c Antonino A. Daplas 2005-09-09 1094 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 1095 vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1096 if (charcnt == 256) {
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1097 vc->vc_hi_font_mask = 0;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1098 } else {
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1099 vc->vc_hi_font_mask = 0x100;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1100 if (vc->vc_can_do_color)
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1101 vc->vc_complement_mask <<= 1;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1102 }
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1103
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1104 if (!*svc->vc_uni_pagedir_loc)
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1105 con_set_default_unimap(svc);
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1106 if (!*vc->vc_uni_pagedir_loc)
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1107 con_copy_unimap(vc, svc);
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1108
e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1109 ops = info->fbcon_par;
f235f664a8afab drivers/video/console/fbcon.c Scot Doyle 2015-10-09 1110 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 1111
2428e59b530928 drivers/video/console/fbcon.c Marcin Slusarz 2008-02-06 1112 p->con_rotate = initial_rotation;
c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1113 if (p->con_rotate == -1)
c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1114 p->con_rotate = info->fbcon_rotate_hint;
c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1115 if (p->con_rotate == -1)
f2f4946b0adfd6 drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1116 p->con_rotate = FB_ROTATE_UR;
c9e6a36492504e drivers/video/fbdev/core/fbcon.c Hans de Goede 2017-11-25 1117
b73deed32d0874 drivers/video/console/fbcon.c Antonino A. Daplas 2006-01-09 1118 set_blitting_type(vc, info);
e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1119
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1120 cols = vc->vc_cols;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1121 rows = vc->vc_rows;
e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1122 new_cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres);
e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1123 new_rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1124 new_cols /= vc->vc_font.width;
e4fc27618b7523 drivers/video/console/fbcon.c Antonino A. Daplas 2005-11-08 1125 new_rows /= vc->vc_font.height;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1126
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1127 /*
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1128 * We must always set the mode. The mode of the previous console
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1129 * driver could be in the same resolution but we are using different
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1130 * hardware so we have to initialize the hardware.
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1131 *
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1132 * We need to do it in fbcon_init() to prevent screen corruption.
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1133 */
6ca8dfd78187d8 drivers/video/console/fbcon.c Jiri Slaby 2016-06-23 1134 if (con_is_visible(vc) && vc->vc_mode == KD_TEXT) {
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1135 if (info->fbops->fb_set_par &&
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1136 !(ops->flags & FBCON_FLAGS_INIT)) {
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1137 ret = info->fbops->fb_set_par(info);
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1138
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1139 if (ret)
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1140 printk(KERN_ERR "fbcon_init: detected "
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1141 "unhandled fb_set_par error, "
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1142 "error code %d\n", ret);
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1143 }
0fcf6ada2b8eb4 drivers/video/console/fbcon.c Florian Tobias Schandinat 2009-09-22 1144
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1145 ops->flags |= FBCON_FLAGS_INIT;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1146 }
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1147
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1148 ops->graphics = 0;
^1da177e4c3f41 drivers/video/console/fbcon.c Linus Torvalds 2005-04-16 1149

:::::: The code at line 1036 was first introduced by commit
:::::: 460f6b1a238d2ee1d69a4911f81ee1728242f0dd Revert "fbcon: Disable accelerated scrolling"

:::::: TO: Helge Deller <deller@xxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

--
0-DAY CI Kernel Test Service
https://01.org/lkp

Next message: Borislav Petkov: "Re: [PATCH] boot install: Partially refactor the logic for detecting bootloader"
Previous message: Guilherme G. Piccoli: "Re: [RFC 0/4] Support kdump with LUKS encryption by reusing LUKS master key"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]