* Re: [PATCH] staging: sm750fb: make g_fbmode array const
2026-02-02 2:32 [PATCH] staging: sm750fb: make g_fbmode array const James
@ 2026-02-02 7:50 ` kernel test robot
2026-02-02 9:02 ` kernel test robot
1 sibling, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-02-02 7:50 UTC (permalink / raw)
To: James, sudipm.mukherjee
Cc: oe-kbuild-all, teddy.wang, linux-fbdev, linux-staging, gregkh,
James
Hi James,
kernel test robot noticed the following build errors:
[auto build test ERROR on staging/staging-testing]
url: https://github.com/intel-lab-lkp/linux/commits/James/staging-sm750fb-make-g_fbmode-array-const/20260202-103616
base: staging/staging-testing
patch link: https://lore.kernel.org/r/20260202023253.67552-1-supernitsuasnowpee%40gmail.com
patch subject: [PATCH] staging: sm750fb: make g_fbmode array const
config: parisc-allmodconfig (https://download.01.org/0day-ci/archive/20260202/202602021517.sqf68PlG-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260202/202602021517.sqf68PlG-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602021517.sqf68PlG-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/staging/sm750fb/sm750.c: In function 'lynxfb_set_fbinfo':
>> drivers/staging/sm750fb/sm750.c:795:33: error: assignment of read-only location 'g_fbmode[index]'
795 | g_fbmode[index] = g_def_fbmode;
| ^
drivers/staging/sm750fb/sm750.c:797:41: error: assignment of read-only location 'g_fbmode[index]'
797 | g_fbmode[index] = g_fbmode[0];
| ^
drivers/staging/sm750fb/sm750.c: In function 'sm750fb_setup':
>> drivers/staging/sm750fb/sm750.c:958:45: error: assignment of read-only location 'g_fbmode[0]'
958 | g_fbmode[0] = opt;
| ^
drivers/staging/sm750fb/sm750.c:962:45: error: assignment of read-only location 'g_fbmode[1]'
962 | g_fbmode[1] = opt;
| ^
vim +795 drivers/staging/sm750fb/sm750.c
81dee67e215b23 Sudip Mukherjee 2015-03-03 722
81dee67e215b23 Sudip Mukherjee 2015-03-03 723 static int lynxfb_set_fbinfo(struct fb_info *info, int index)
81dee67e215b23 Sudip Mukherjee 2015-03-03 724 {
81dee67e215b23 Sudip Mukherjee 2015-03-03 725 int i;
81dee67e215b23 Sudip Mukherjee 2015-03-03 726 struct lynxfb_par *par;
e359b6a863e19f Mike Rapoport 2015-10-26 727 struct sm750_dev *sm750_dev;
81dee67e215b23 Sudip Mukherjee 2015-03-03 728 struct lynxfb_crtc *crtc;
81dee67e215b23 Sudip Mukherjee 2015-03-03 729 struct lynxfb_output *output;
81dee67e215b23 Sudip Mukherjee 2015-03-03 730 struct fb_var_screeninfo *var;
81dee67e215b23 Sudip Mukherjee 2015-03-03 731 struct fb_fix_screeninfo *fix;
81dee67e215b23 Sudip Mukherjee 2015-03-03 732
81dee67e215b23 Sudip Mukherjee 2015-03-03 733 const struct fb_videomode *pdb[] = {
81dee67e215b23 Sudip Mukherjee 2015-03-03 734 lynx750_ext, NULL, vesa_modes,
81dee67e215b23 Sudip Mukherjee 2015-03-03 735 };
81dee67e215b23 Sudip Mukherjee 2015-03-03 736 int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE};
d5d66cfea2ca28 Kelsey Skunberg 2019-04-27 737 static const char * const mdb_desc[] = {
81dee67e215b23 Sudip Mukherjee 2015-03-03 738 "driver prepared modes",
81dee67e215b23 Sudip Mukherjee 2015-03-03 739 "kernel prepared default modedb",
81dee67e215b23 Sudip Mukherjee 2015-03-03 740 "kernel HELPERS prepared vesa_modes",
81dee67e215b23 Sudip Mukherjee 2015-03-03 741 };
81dee67e215b23 Sudip Mukherjee 2015-03-03 742
8c475735085a7d Tim Wassink 2025-12-21 743 static const char *fix_id[2] = {
81dee67e215b23 Sudip Mukherjee 2015-03-03 744 "sm750_fb1", "sm750_fb2",
81dee67e215b23 Sudip Mukherjee 2015-03-03 745 };
81dee67e215b23 Sudip Mukherjee 2015-03-03 746
81dee67e215b23 Sudip Mukherjee 2015-03-03 747 int ret, line_length;
81dee67e215b23 Sudip Mukherjee 2015-03-03 748
81dee67e215b23 Sudip Mukherjee 2015-03-03 749 ret = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 750 par = (struct lynxfb_par *)info->par;
e359b6a863e19f Mike Rapoport 2015-10-26 751 sm750_dev = par->dev;
81dee67e215b23 Sudip Mukherjee 2015-03-03 752 crtc = &par->crtc;
81dee67e215b23 Sudip Mukherjee 2015-03-03 753 output = &par->output;
81dee67e215b23 Sudip Mukherjee 2015-03-03 754 var = &info->var;
81dee67e215b23 Sudip Mukherjee 2015-03-03 755 fix = &info->fix;
81dee67e215b23 Sudip Mukherjee 2015-03-03 756
81dee67e215b23 Sudip Mukherjee 2015-03-03 757 /* set index */
81dee67e215b23 Sudip Mukherjee 2015-03-03 758 par->index = index;
81dee67e215b23 Sudip Mukherjee 2015-03-03 759 output->channel = &crtc->channel;
81dee67e215b23 Sudip Mukherjee 2015-03-03 760 sm750fb_set_drv(par);
81dee67e215b23 Sudip Mukherjee 2015-03-03 761
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 762 /*
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 763 * set current cursor variable and proc pointer,
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 764 * must be set after crtc member initialized
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 765 */
fdc234d85210d9 Benjamin Philip 2021-07-28 766 crtc->cursor.offset = crtc->o_screen + crtc->vidmem_size - 1024;
e359b6a863e19f Mike Rapoport 2015-10-26 767 crtc->cursor.mmio = sm750_dev->pvReg +
e359b6a863e19f Mike Rapoport 2015-10-26 768 0x800f0 + (int)crtc->channel * 0x140;
81dee67e215b23 Sudip Mukherjee 2015-03-03 769
81dee67e215b23 Sudip Mukherjee 2015-03-03 770 pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio);
cd33da26036ea5 Christopher Carbone 2022-08-23 771 crtc->cursor.max_h = 64;
cd33da26036ea5 Christopher Carbone 2022-08-23 772 crtc->cursor.max_w = 64;
39f9137268ee3d Benjamin Philip 2021-07-26 773 crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8;
e359b6a863e19f Mike Rapoport 2015-10-26 774 crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset;
81dee67e215b23 Sudip Mukherjee 2015-03-03 775
3de08a2d14ff8c Lorenzo Stoakes 2015-03-20 776 memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
f7c8a046577e09 Thomas Zimmermann 2023-11-27 777 if (!g_hwcursor)
52d0744d751d8f Arnd Bergmann 2016-11-09 778 sm750_hw_cursor_disable(&crtc->cursor);
81dee67e215b23 Sudip Mukherjee 2015-03-03 779
81dee67e215b23 Sudip Mukherjee 2015-03-03 780 /* set info->fbops, must be set before fb_find_mode */
e359b6a863e19f Mike Rapoport 2015-10-26 781 if (!sm750_dev->accel_off) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 782 /* use 2d acceleration */
f7c8a046577e09 Thomas Zimmermann 2023-11-27 783 if (!g_hwcursor)
f7c8a046577e09 Thomas Zimmermann 2023-11-27 784 info->fbops = &lynxfb_ops_accel;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 785 else
f7c8a046577e09 Thomas Zimmermann 2023-11-27 786 info->fbops = &lynxfb_ops_accel_with_cursor;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 787 } else {
f7c8a046577e09 Thomas Zimmermann 2023-11-27 788 if (!g_hwcursor)
81dee67e215b23 Sudip Mukherjee 2015-03-03 789 info->fbops = &lynxfb_ops;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 790 else
f7c8a046577e09 Thomas Zimmermann 2023-11-27 791 info->fbops = &lynxfb_ops_with_cursor;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 792 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 793
81dee67e215b23 Sudip Mukherjee 2015-03-03 794 if (!g_fbmode[index]) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 @795 g_fbmode[index] = g_def_fbmode;
81dee67e215b23 Sudip Mukherjee 2015-03-03 796 if (index)
81dee67e215b23 Sudip Mukherjee 2015-03-03 797 g_fbmode[index] = g_fbmode[0];
81dee67e215b23 Sudip Mukherjee 2015-03-03 798 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 799
81dee67e215b23 Sudip Mukherjee 2015-03-03 800 for (i = 0; i < 3; i++) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 801 ret = fb_find_mode(var, info, g_fbmode[index],
81dee67e215b23 Sudip Mukherjee 2015-03-03 802 pdb[i], cdb[i], NULL, 8);
81dee67e215b23 Sudip Mukherjee 2015-03-03 803
81dee67e215b23 Sudip Mukherjee 2015-03-03 804 if (ret == 1) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 805 pr_info("success! use specified mode:%s in %s\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 806 g_fbmode[index],
81dee67e215b23 Sudip Mukherjee 2015-03-03 807 mdb_desc[i]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 808 break;
81dee67e215b23 Sudip Mukherjee 2015-03-03 809 } else if (ret == 2) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 810 pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 811 g_fbmode[index],
81dee67e215b23 Sudip Mukherjee 2015-03-03 812 mdb_desc[i]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 813 break;
81dee67e215b23 Sudip Mukherjee 2015-03-03 814 } else if (ret == 3) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 815 pr_warn("wanna use default mode\n");
4bd9503d0becdb Michel von Czettritz 2015-03-26 816 /*break;*/
81dee67e215b23 Sudip Mukherjee 2015-03-03 817 } else if (ret == 4) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 818 pr_warn("fall back to any valid mode\n");
81dee67e215b23 Sudip Mukherjee 2015-03-03 819 } else {
3318bb5e945f70 Michel von Czettritz 2015-03-26 820 pr_warn("ret = %d,fb_find_mode failed,with %s\n",
3318bb5e945f70 Michel von Czettritz 2015-03-26 821 ret,
3318bb5e945f70 Michel von Czettritz 2015-03-26 822 mdb_desc[i]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 823 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 824 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 825
81dee67e215b23 Sudip Mukherjee 2015-03-03 826 /* some member of info->var had been set by fb_find_mode */
81dee67e215b23 Sudip Mukherjee 2015-03-03 827
271dbae3c6a1da Prasant Jalan 2017-04-01 828 pr_info("Member of info->var is :\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 829 "xres=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 830 "yres=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 831 "xres_virtual=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 832 "yres_virtual=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 833 "xoffset=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 834 "yoffset=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 835 "bits_per_pixel=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 836 " ...\n",
3318bb5e945f70 Michel von Czettritz 2015-03-26 837 var->xres,
3318bb5e945f70 Michel von Czettritz 2015-03-26 838 var->yres,
3318bb5e945f70 Michel von Czettritz 2015-03-26 839 var->xres_virtual,
3318bb5e945f70 Michel von Czettritz 2015-03-26 840 var->yres_virtual,
3318bb5e945f70 Michel von Czettritz 2015-03-26 841 var->xoffset,
3318bb5e945f70 Michel von Czettritz 2015-03-26 842 var->yoffset,
3318bb5e945f70 Michel von Czettritz 2015-03-26 843 var->bits_per_pixel);
81dee67e215b23 Sudip Mukherjee 2015-03-03 844
81dee67e215b23 Sudip Mukherjee 2015-03-03 845 /* set par */
81dee67e215b23 Sudip Mukherjee 2015-03-03 846 par->info = info;
81dee67e215b23 Sudip Mukherjee 2015-03-03 847
81dee67e215b23 Sudip Mukherjee 2015-03-03 848 /* set info */
e3a3f9f5123683 Mike Rapoport 2015-10-26 849 line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8),
e3a3f9f5123683 Mike Rapoport 2015-10-26 850 crtc->line_pad);
81dee67e215b23 Sudip Mukherjee 2015-03-03 851
81dee67e215b23 Sudip Mukherjee 2015-03-03 852 info->pseudo_palette = &par->pseudo_palette[0];
cc59bde1c920ab Benjamin Philip 2021-07-28 853 info->screen_base = crtc->v_screen;
81dee67e215b23 Sudip Mukherjee 2015-03-03 854 pr_debug("screen_base vaddr = %p\n", info->screen_base);
81dee67e215b23 Sudip Mukherjee 2015-03-03 855 info->screen_size = line_length * var->yres_virtual;
81dee67e215b23 Sudip Mukherjee 2015-03-03 856
81dee67e215b23 Sudip Mukherjee 2015-03-03 857 /* set info->fix */
81dee67e215b23 Sudip Mukherjee 2015-03-03 858 fix->type = FB_TYPE_PACKED_PIXELS;
81dee67e215b23 Sudip Mukherjee 2015-03-03 859 fix->type_aux = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 860 fix->xpanstep = crtc->xpanstep;
81dee67e215b23 Sudip Mukherjee 2015-03-03 861 fix->ypanstep = crtc->ypanstep;
81dee67e215b23 Sudip Mukherjee 2015-03-03 862 fix->ywrapstep = crtc->ywrapstep;
81dee67e215b23 Sudip Mukherjee 2015-03-03 863 fix->accel = FB_ACCEL_SMI;
81dee67e215b23 Sudip Mukherjee 2015-03-03 864
8c475735085a7d Tim Wassink 2025-12-21 865 strscpy(fix->id, fix_id[index], sizeof(fix->id));
81dee67e215b23 Sudip Mukherjee 2015-03-03 866
fdc234d85210d9 Benjamin Philip 2021-07-28 867 fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start;
81dee67e215b23 Sudip Mukherjee 2015-03-03 868 pr_info("fix->smem_start = %lx\n", fix->smem_start);
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 869 /*
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 870 * according to mmap experiment from user space application,
81dee67e215b23 Sudip Mukherjee 2015-03-03 871 * fix->mmio_len should not larger than virtual size
81dee67e215b23 Sudip Mukherjee 2015-03-03 872 * (xres_virtual x yres_virtual x ByPP)
81dee67e215b23 Sudip Mukherjee 2015-03-03 873 * Below line maybe buggy when user mmap fb dev node and write
81dee67e215b23 Sudip Mukherjee 2015-03-03 874 * data into the bound over virtual size
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 875 */
81dee67e215b23 Sudip Mukherjee 2015-03-03 876 fix->smem_len = crtc->vidmem_size;
81dee67e215b23 Sudip Mukherjee 2015-03-03 877 pr_info("fix->smem_len = %x\n", fix->smem_len);
81dee67e215b23 Sudip Mukherjee 2015-03-03 878 info->screen_size = fix->smem_len;
81dee67e215b23 Sudip Mukherjee 2015-03-03 879 fix->line_length = line_length;
e359b6a863e19f Mike Rapoport 2015-10-26 880 fix->mmio_start = sm750_dev->vidreg_start;
81dee67e215b23 Sudip Mukherjee 2015-03-03 881 pr_info("fix->mmio_start = %lx\n", fix->mmio_start);
e359b6a863e19f Mike Rapoport 2015-10-26 882 fix->mmio_len = sm750_dev->vidreg_size;
81dee67e215b23 Sudip Mukherjee 2015-03-03 883 pr_info("fix->mmio_len = %x\n", fix->mmio_len);
b610e1193a917f Matej Dujava 2020-04-30 884
b610e1193a917f Matej Dujava 2020-04-30 885 lynxfb_set_visual_mode(info);
81dee67e215b23 Sudip Mukherjee 2015-03-03 886
81dee67e215b23 Sudip Mukherjee 2015-03-03 887 /* set var */
81dee67e215b23 Sudip Mukherjee 2015-03-03 888 var->activate = FB_ACTIVATE_NOW;
81dee67e215b23 Sudip Mukherjee 2015-03-03 889 var->accel_flags = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 890 var->vmode = FB_VMODE_NONINTERLACED;
81dee67e215b23 Sudip Mukherjee 2015-03-03 891
81dee67e215b23 Sudip Mukherjee 2015-03-03 892 pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 893 info->cmap.start, info->cmap.len,
81dee67e215b23 Sudip Mukherjee 2015-03-03 894 info->cmap.red, info->cmap.green, info->cmap.blue,
81dee67e215b23 Sudip Mukherjee 2015-03-03 895 info->cmap.transp);
81dee67e215b23 Sudip Mukherjee 2015-03-03 896
61c507cf652da1 Michel von Czettritz 2015-03-26 897 ret = fb_alloc_cmap(&info->cmap, 256, 0);
61c507cf652da1 Michel von Czettritz 2015-03-26 898 if (ret < 0) {
008272072d61a8 Masanari Iida 2015-05-28 899 pr_err("Could not allocate memory for cmap.\n");
81dee67e215b23 Sudip Mukherjee 2015-03-03 900 goto exit;
81dee67e215b23 Sudip Mukherjee 2015-03-03 901 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 902
81dee67e215b23 Sudip Mukherjee 2015-03-03 903 pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 904 info->cmap.start, info->cmap.len,
81dee67e215b23 Sudip Mukherjee 2015-03-03 905 info->cmap.red, info->cmap.green, info->cmap.blue,
81dee67e215b23 Sudip Mukherjee 2015-03-03 906 info->cmap.transp);
81dee67e215b23 Sudip Mukherjee 2015-03-03 907
81dee67e215b23 Sudip Mukherjee 2015-03-03 908 exit:
81dee67e215b23 Sudip Mukherjee 2015-03-03 909 lynxfb_ops_check_var(var, info);
81dee67e215b23 Sudip Mukherjee 2015-03-03 910 return ret;
81dee67e215b23 Sudip Mukherjee 2015-03-03 911 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 912
81dee67e215b23 Sudip Mukherjee 2015-03-03 913 /* chip specific g_option configuration routine */
700591a9adc8b1 Mike Rapoport 2015-10-26 914 static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
81dee67e215b23 Sudip Mukherjee 2015-03-03 915 {
81dee67e215b23 Sudip Mukherjee 2015-03-03 916 char *opt;
81dee67e215b23 Sudip Mukherjee 2015-03-03 917 int swap;
81dee67e215b23 Sudip Mukherjee 2015-03-03 918
81dee67e215b23 Sudip Mukherjee 2015-03-03 919 swap = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 920
cc34db609ff98c Madhumitha Sundar 2026-01-27 921 sm750_dev->init_parm.chip_clk = 0;
cc34db609ff98c Madhumitha Sundar 2026-01-27 922 sm750_dev->init_parm.mem_clk = 0;
cc34db609ff98c Madhumitha Sundar 2026-01-27 923 sm750_dev->init_parm.master_clk = 0;
cc34db609ff98c Madhumitha Sundar 2026-01-27 924 sm750_dev->init_parm.powerMode = 0;
cc34db609ff98c Madhumitha Sundar 2026-01-27 925 sm750_dev->init_parm.setAllEngOff = 0;
cc34db609ff98c Madhumitha Sundar 2026-01-27 926 sm750_dev->init_parm.resetMemory = 1;
81dee67e215b23 Sudip Mukherjee 2015-03-03 927
81dee67e215b23 Sudip Mukherjee 2015-03-03 928 /* defaultly turn g_hwcursor on for both view */
81dee67e215b23 Sudip Mukherjee 2015-03-03 929 g_hwcursor = 3;
81dee67e215b23 Sudip Mukherjee 2015-03-03 930
81dee67e215b23 Sudip Mukherjee 2015-03-03 931 if (!src || !*src) {
c56de0967a658c Elise Lennion 2016-10-31 932 dev_warn(&sm750_dev->pdev->dev, "no specific g_option.\n");
81dee67e215b23 Sudip Mukherjee 2015-03-03 933 goto NO_PARAM;
81dee67e215b23 Sudip Mukherjee 2015-03-03 934 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 935
0fa96e39279988 Sudip Mukherjee 2015-03-10 936 while ((opt = strsep(&src, ":")) != NULL && *opt != 0) {
c56de0967a658c Elise Lennion 2016-10-31 937 dev_info(&sm750_dev->pdev->dev, "opt=%s\n", opt);
c56de0967a658c Elise Lennion 2016-10-31 938 dev_info(&sm750_dev->pdev->dev, "src=%s\n", src);
81dee67e215b23 Sudip Mukherjee 2015-03-03 939
144634a6b42146 Katie Dunne 2017-02-19 940 if (!strncmp(opt, "swap", strlen("swap"))) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 941 swap = 1;
144634a6b42146 Katie Dunne 2017-02-19 942 } else if (!strncmp(opt, "nocrt", strlen("nocrt"))) {
1757d106a9ce8c Mike Rapoport 2015-10-26 943 sm750_dev->nocrt = 1;
144634a6b42146 Katie Dunne 2017-02-19 944 } else if (!strncmp(opt, "36bit", strlen("36bit"))) {
1757d106a9ce8c Mike Rapoport 2015-10-26 945 sm750_dev->pnltype = sm750_doubleTFT;
144634a6b42146 Katie Dunne 2017-02-19 946 } else if (!strncmp(opt, "18bit", strlen("18bit"))) {
1757d106a9ce8c Mike Rapoport 2015-10-26 947 sm750_dev->pnltype = sm750_dualTFT;
144634a6b42146 Katie Dunne 2017-02-19 948 } else if (!strncmp(opt, "24bit", strlen("24bit"))) {
1757d106a9ce8c Mike Rapoport 2015-10-26 949 sm750_dev->pnltype = sm750_24TFT;
144634a6b42146 Katie Dunne 2017-02-19 950 } else if (!strncmp(opt, "nohwc0", strlen("nohwc0"))) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 951 g_hwcursor &= ~0x1;
144634a6b42146 Katie Dunne 2017-02-19 952 } else if (!strncmp(opt, "nohwc1", strlen("nohwc1"))) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 953 g_hwcursor &= ~0x2;
144634a6b42146 Katie Dunne 2017-02-19 954 } else if (!strncmp(opt, "nohwc", strlen("nohwc"))) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 955 g_hwcursor = 0;
144634a6b42146 Katie Dunne 2017-02-19 956 } else {
81dee67e215b23 Sudip Mukherjee 2015-03-03 957 if (!g_fbmode[0]) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 @958 g_fbmode[0] = opt;
cee9ba1c30d051 Abdul Rauf 2017-01-08 959 dev_info(&sm750_dev->pdev->dev,
cee9ba1c30d051 Abdul Rauf 2017-01-08 960 "find fbmode0 : %s\n", g_fbmode[0]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 961 } else if (!g_fbmode[1]) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 962 g_fbmode[1] = opt;
cee9ba1c30d051 Abdul Rauf 2017-01-08 963 dev_info(&sm750_dev->pdev->dev,
cee9ba1c30d051 Abdul Rauf 2017-01-08 964 "find fbmode1 : %s\n", g_fbmode[1]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 965 } else {
c56de0967a658c Elise Lennion 2016-10-31 966 dev_warn(&sm750_dev->pdev->dev, "How many view you wann set?\n");
81dee67e215b23 Sudip Mukherjee 2015-03-03 967 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 968 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 969 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 970
81dee67e215b23 Sudip Mukherjee 2015-03-03 971 NO_PARAM:
e359b6a863e19f Mike Rapoport 2015-10-26 972 if (sm750_dev->revid != SM750LE_REVISION_ID) {
a3f92cc94c6126 Mike Rapoport 2016-01-17 973 if (sm750_dev->fb_count > 1) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 974 if (swap)
1757d106a9ce8c Mike Rapoport 2015-10-26 975 sm750_dev->dataflow = sm750_dual_swap;
81dee67e215b23 Sudip Mukherjee 2015-03-03 976 else
1757d106a9ce8c Mike Rapoport 2015-10-26 977 sm750_dev->dataflow = sm750_dual_normal;
81dee67e215b23 Sudip Mukherjee 2015-03-03 978 } else {
81dee67e215b23 Sudip Mukherjee 2015-03-03 979 if (swap)
1757d106a9ce8c Mike Rapoport 2015-10-26 980 sm750_dev->dataflow = sm750_simul_sec;
81dee67e215b23 Sudip Mukherjee 2015-03-03 981 else
1757d106a9ce8c Mike Rapoport 2015-10-26 982 sm750_dev->dataflow = sm750_simul_pri;
81dee67e215b23 Sudip Mukherjee 2015-03-03 983 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 984 } else {
81dee67e215b23 Sudip Mukherjee 2015-03-03 985 /* SM750LE only have one crt channel */
1757d106a9ce8c Mike Rapoport 2015-10-26 986 sm750_dev->dataflow = sm750_simul_sec;
81dee67e215b23 Sudip Mukherjee 2015-03-03 987 /* sm750le do not have complex attributes */
1757d106a9ce8c Mike Rapoport 2015-10-26 988 sm750_dev->nocrt = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 989 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 990 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 991
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] staging: sm750fb: make g_fbmode array const
2026-02-02 2:32 [PATCH] staging: sm750fb: make g_fbmode array const James
2026-02-02 7:50 ` kernel test robot
@ 2026-02-02 9:02 ` kernel test robot
1 sibling, 0 replies; 3+ messages in thread
From: kernel test robot @ 2026-02-02 9:02 UTC (permalink / raw)
To: James, sudipm.mukherjee
Cc: llvm, oe-kbuild-all, teddy.wang, linux-fbdev, linux-staging,
gregkh, James
Hi James,
kernel test robot noticed the following build errors:
[auto build test ERROR on staging/staging-testing]
url: https://github.com/intel-lab-lkp/linux/commits/James/staging-sm750fb-make-g_fbmode-array-const/20260202-103616
base: staging/staging-testing
patch link: https://lore.kernel.org/r/20260202023253.67552-1-supernitsuasnowpee%40gmail.com
patch subject: [PATCH] staging: sm750fb: make g_fbmode array const
config: riscv-allmodconfig (https://download.01.org/0day-ci/archive/20260202/202602021649.9bGhL8np-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260202/202602021649.9bGhL8np-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602021649.9bGhL8np-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/staging/sm750fb/sm750.c:795:19: error: cannot assign to variable 'g_fbmode' with const-qualified type 'const char *const[2]'
795 | g_fbmode[index] = g_def_fbmode;
| ~~~~~~~~~~~~~~~ ^
drivers/staging/sm750fb/sm750.c:36:27: note: variable 'g_fbmode' declared const here
36 | static const char * const g_fbmode[] = {NULL, NULL};
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/sm750fb/sm750.c:797:20: error: cannot assign to variable 'g_fbmode' with const-qualified type 'const char *const[2]'
797 | g_fbmode[index] = g_fbmode[0];
| ~~~~~~~~~~~~~~~ ^
drivers/staging/sm750fb/sm750.c:36:27: note: variable 'g_fbmode' declared const here
36 | static const char * const g_fbmode[] = {NULL, NULL};
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/sm750fb/sm750.c:958:17: error: cannot assign to variable 'g_fbmode' with const-qualified type 'const char *const[2]'
958 | g_fbmode[0] = opt;
| ~~~~~~~~~~~ ^
drivers/staging/sm750fb/sm750.c:36:27: note: variable 'g_fbmode' declared const here
36 | static const char * const g_fbmode[] = {NULL, NULL};
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/sm750fb/sm750.c:962:17: error: cannot assign to variable 'g_fbmode' with const-qualified type 'const char *const[2]'
962 | g_fbmode[1] = opt;
| ~~~~~~~~~~~ ^
drivers/staging/sm750fb/sm750.c:36:27: note: variable 'g_fbmode' declared const here
36 | static const char * const g_fbmode[] = {NULL, NULL};
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
4 errors generated.
vim +795 drivers/staging/sm750fb/sm750.c
81dee67e215b23 Sudip Mukherjee 2015-03-03 722
81dee67e215b23 Sudip Mukherjee 2015-03-03 723 static int lynxfb_set_fbinfo(struct fb_info *info, int index)
81dee67e215b23 Sudip Mukherjee 2015-03-03 724 {
81dee67e215b23 Sudip Mukherjee 2015-03-03 725 int i;
81dee67e215b23 Sudip Mukherjee 2015-03-03 726 struct lynxfb_par *par;
e359b6a863e19f Mike Rapoport 2015-10-26 727 struct sm750_dev *sm750_dev;
81dee67e215b23 Sudip Mukherjee 2015-03-03 728 struct lynxfb_crtc *crtc;
81dee67e215b23 Sudip Mukherjee 2015-03-03 729 struct lynxfb_output *output;
81dee67e215b23 Sudip Mukherjee 2015-03-03 730 struct fb_var_screeninfo *var;
81dee67e215b23 Sudip Mukherjee 2015-03-03 731 struct fb_fix_screeninfo *fix;
81dee67e215b23 Sudip Mukherjee 2015-03-03 732
81dee67e215b23 Sudip Mukherjee 2015-03-03 733 const struct fb_videomode *pdb[] = {
81dee67e215b23 Sudip Mukherjee 2015-03-03 734 lynx750_ext, NULL, vesa_modes,
81dee67e215b23 Sudip Mukherjee 2015-03-03 735 };
81dee67e215b23 Sudip Mukherjee 2015-03-03 736 int cdb[] = {ARRAY_SIZE(lynx750_ext), 0, VESA_MODEDB_SIZE};
d5d66cfea2ca28 Kelsey Skunberg 2019-04-27 737 static const char * const mdb_desc[] = {
81dee67e215b23 Sudip Mukherjee 2015-03-03 738 "driver prepared modes",
81dee67e215b23 Sudip Mukherjee 2015-03-03 739 "kernel prepared default modedb",
81dee67e215b23 Sudip Mukherjee 2015-03-03 740 "kernel HELPERS prepared vesa_modes",
81dee67e215b23 Sudip Mukherjee 2015-03-03 741 };
81dee67e215b23 Sudip Mukherjee 2015-03-03 742
8c475735085a7d Tim Wassink 2025-12-21 743 static const char *fix_id[2] = {
81dee67e215b23 Sudip Mukherjee 2015-03-03 744 "sm750_fb1", "sm750_fb2",
81dee67e215b23 Sudip Mukherjee 2015-03-03 745 };
81dee67e215b23 Sudip Mukherjee 2015-03-03 746
81dee67e215b23 Sudip Mukherjee 2015-03-03 747 int ret, line_length;
81dee67e215b23 Sudip Mukherjee 2015-03-03 748
81dee67e215b23 Sudip Mukherjee 2015-03-03 749 ret = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 750 par = (struct lynxfb_par *)info->par;
e359b6a863e19f Mike Rapoport 2015-10-26 751 sm750_dev = par->dev;
81dee67e215b23 Sudip Mukherjee 2015-03-03 752 crtc = &par->crtc;
81dee67e215b23 Sudip Mukherjee 2015-03-03 753 output = &par->output;
81dee67e215b23 Sudip Mukherjee 2015-03-03 754 var = &info->var;
81dee67e215b23 Sudip Mukherjee 2015-03-03 755 fix = &info->fix;
81dee67e215b23 Sudip Mukherjee 2015-03-03 756
81dee67e215b23 Sudip Mukherjee 2015-03-03 757 /* set index */
81dee67e215b23 Sudip Mukherjee 2015-03-03 758 par->index = index;
81dee67e215b23 Sudip Mukherjee 2015-03-03 759 output->channel = &crtc->channel;
81dee67e215b23 Sudip Mukherjee 2015-03-03 760 sm750fb_set_drv(par);
81dee67e215b23 Sudip Mukherjee 2015-03-03 761
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 762 /*
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 763 * set current cursor variable and proc pointer,
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 764 * must be set after crtc member initialized
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 765 */
fdc234d85210d9 Benjamin Philip 2021-07-28 766 crtc->cursor.offset = crtc->o_screen + crtc->vidmem_size - 1024;
e359b6a863e19f Mike Rapoport 2015-10-26 767 crtc->cursor.mmio = sm750_dev->pvReg +
e359b6a863e19f Mike Rapoport 2015-10-26 768 0x800f0 + (int)crtc->channel * 0x140;
81dee67e215b23 Sudip Mukherjee 2015-03-03 769
81dee67e215b23 Sudip Mukherjee 2015-03-03 770 pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio);
cd33da26036ea5 Christopher Carbone 2022-08-23 771 crtc->cursor.max_h = 64;
cd33da26036ea5 Christopher Carbone 2022-08-23 772 crtc->cursor.max_w = 64;
39f9137268ee3d Benjamin Philip 2021-07-26 773 crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8;
e359b6a863e19f Mike Rapoport 2015-10-26 774 crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset;
81dee67e215b23 Sudip Mukherjee 2015-03-03 775
3de08a2d14ff8c Lorenzo Stoakes 2015-03-20 776 memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
f7c8a046577e09 Thomas Zimmermann 2023-11-27 777 if (!g_hwcursor)
52d0744d751d8f Arnd Bergmann 2016-11-09 778 sm750_hw_cursor_disable(&crtc->cursor);
81dee67e215b23 Sudip Mukherjee 2015-03-03 779
81dee67e215b23 Sudip Mukherjee 2015-03-03 780 /* set info->fbops, must be set before fb_find_mode */
e359b6a863e19f Mike Rapoport 2015-10-26 781 if (!sm750_dev->accel_off) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 782 /* use 2d acceleration */
f7c8a046577e09 Thomas Zimmermann 2023-11-27 783 if (!g_hwcursor)
f7c8a046577e09 Thomas Zimmermann 2023-11-27 784 info->fbops = &lynxfb_ops_accel;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 785 else
f7c8a046577e09 Thomas Zimmermann 2023-11-27 786 info->fbops = &lynxfb_ops_accel_with_cursor;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 787 } else {
f7c8a046577e09 Thomas Zimmermann 2023-11-27 788 if (!g_hwcursor)
81dee67e215b23 Sudip Mukherjee 2015-03-03 789 info->fbops = &lynxfb_ops;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 790 else
f7c8a046577e09 Thomas Zimmermann 2023-11-27 791 info->fbops = &lynxfb_ops_with_cursor;
f7c8a046577e09 Thomas Zimmermann 2023-11-27 792 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 793
81dee67e215b23 Sudip Mukherjee 2015-03-03 794 if (!g_fbmode[index]) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 @795 g_fbmode[index] = g_def_fbmode;
81dee67e215b23 Sudip Mukherjee 2015-03-03 796 if (index)
81dee67e215b23 Sudip Mukherjee 2015-03-03 797 g_fbmode[index] = g_fbmode[0];
81dee67e215b23 Sudip Mukherjee 2015-03-03 798 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 799
81dee67e215b23 Sudip Mukherjee 2015-03-03 800 for (i = 0; i < 3; i++) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 801 ret = fb_find_mode(var, info, g_fbmode[index],
81dee67e215b23 Sudip Mukherjee 2015-03-03 802 pdb[i], cdb[i], NULL, 8);
81dee67e215b23 Sudip Mukherjee 2015-03-03 803
81dee67e215b23 Sudip Mukherjee 2015-03-03 804 if (ret == 1) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 805 pr_info("success! use specified mode:%s in %s\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 806 g_fbmode[index],
81dee67e215b23 Sudip Mukherjee 2015-03-03 807 mdb_desc[i]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 808 break;
81dee67e215b23 Sudip Mukherjee 2015-03-03 809 } else if (ret == 2) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 810 pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 811 g_fbmode[index],
81dee67e215b23 Sudip Mukherjee 2015-03-03 812 mdb_desc[i]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 813 break;
81dee67e215b23 Sudip Mukherjee 2015-03-03 814 } else if (ret == 3) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 815 pr_warn("wanna use default mode\n");
4bd9503d0becdb Michel von Czettritz 2015-03-26 816 /*break;*/
81dee67e215b23 Sudip Mukherjee 2015-03-03 817 } else if (ret == 4) {
81dee67e215b23 Sudip Mukherjee 2015-03-03 818 pr_warn("fall back to any valid mode\n");
81dee67e215b23 Sudip Mukherjee 2015-03-03 819 } else {
3318bb5e945f70 Michel von Czettritz 2015-03-26 820 pr_warn("ret = %d,fb_find_mode failed,with %s\n",
3318bb5e945f70 Michel von Czettritz 2015-03-26 821 ret,
3318bb5e945f70 Michel von Czettritz 2015-03-26 822 mdb_desc[i]);
81dee67e215b23 Sudip Mukherjee 2015-03-03 823 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 824 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 825
81dee67e215b23 Sudip Mukherjee 2015-03-03 826 /* some member of info->var had been set by fb_find_mode */
81dee67e215b23 Sudip Mukherjee 2015-03-03 827
271dbae3c6a1da Prasant Jalan 2017-04-01 828 pr_info("Member of info->var is :\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 829 "xres=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 830 "yres=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 831 "xres_virtual=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 832 "yres_virtual=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 833 "xoffset=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 834 "yoffset=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 835 "bits_per_pixel=%d\n"
271dbae3c6a1da Prasant Jalan 2017-04-01 836 " ...\n",
3318bb5e945f70 Michel von Czettritz 2015-03-26 837 var->xres,
3318bb5e945f70 Michel von Czettritz 2015-03-26 838 var->yres,
3318bb5e945f70 Michel von Czettritz 2015-03-26 839 var->xres_virtual,
3318bb5e945f70 Michel von Czettritz 2015-03-26 840 var->yres_virtual,
3318bb5e945f70 Michel von Czettritz 2015-03-26 841 var->xoffset,
3318bb5e945f70 Michel von Czettritz 2015-03-26 842 var->yoffset,
3318bb5e945f70 Michel von Czettritz 2015-03-26 843 var->bits_per_pixel);
81dee67e215b23 Sudip Mukherjee 2015-03-03 844
81dee67e215b23 Sudip Mukherjee 2015-03-03 845 /* set par */
81dee67e215b23 Sudip Mukherjee 2015-03-03 846 par->info = info;
81dee67e215b23 Sudip Mukherjee 2015-03-03 847
81dee67e215b23 Sudip Mukherjee 2015-03-03 848 /* set info */
e3a3f9f5123683 Mike Rapoport 2015-10-26 849 line_length = ALIGN((var->xres_virtual * var->bits_per_pixel / 8),
e3a3f9f5123683 Mike Rapoport 2015-10-26 850 crtc->line_pad);
81dee67e215b23 Sudip Mukherjee 2015-03-03 851
81dee67e215b23 Sudip Mukherjee 2015-03-03 852 info->pseudo_palette = &par->pseudo_palette[0];
cc59bde1c920ab Benjamin Philip 2021-07-28 853 info->screen_base = crtc->v_screen;
81dee67e215b23 Sudip Mukherjee 2015-03-03 854 pr_debug("screen_base vaddr = %p\n", info->screen_base);
81dee67e215b23 Sudip Mukherjee 2015-03-03 855 info->screen_size = line_length * var->yres_virtual;
81dee67e215b23 Sudip Mukherjee 2015-03-03 856
81dee67e215b23 Sudip Mukherjee 2015-03-03 857 /* set info->fix */
81dee67e215b23 Sudip Mukherjee 2015-03-03 858 fix->type = FB_TYPE_PACKED_PIXELS;
81dee67e215b23 Sudip Mukherjee 2015-03-03 859 fix->type_aux = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 860 fix->xpanstep = crtc->xpanstep;
81dee67e215b23 Sudip Mukherjee 2015-03-03 861 fix->ypanstep = crtc->ypanstep;
81dee67e215b23 Sudip Mukherjee 2015-03-03 862 fix->ywrapstep = crtc->ywrapstep;
81dee67e215b23 Sudip Mukherjee 2015-03-03 863 fix->accel = FB_ACCEL_SMI;
81dee67e215b23 Sudip Mukherjee 2015-03-03 864
8c475735085a7d Tim Wassink 2025-12-21 865 strscpy(fix->id, fix_id[index], sizeof(fix->id));
81dee67e215b23 Sudip Mukherjee 2015-03-03 866
fdc234d85210d9 Benjamin Philip 2021-07-28 867 fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start;
81dee67e215b23 Sudip Mukherjee 2015-03-03 868 pr_info("fix->smem_start = %lx\n", fix->smem_start);
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 869 /*
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 870 * according to mmap experiment from user space application,
81dee67e215b23 Sudip Mukherjee 2015-03-03 871 * fix->mmio_len should not larger than virtual size
81dee67e215b23 Sudip Mukherjee 2015-03-03 872 * (xres_virtual x yres_virtual x ByPP)
81dee67e215b23 Sudip Mukherjee 2015-03-03 873 * Below line maybe buggy when user mmap fb dev node and write
81dee67e215b23 Sudip Mukherjee 2015-03-03 874 * data into the bound over virtual size
d11ac7cbcc266c Sudip Mukherjee 2015-08-07 875 */
81dee67e215b23 Sudip Mukherjee 2015-03-03 876 fix->smem_len = crtc->vidmem_size;
81dee67e215b23 Sudip Mukherjee 2015-03-03 877 pr_info("fix->smem_len = %x\n", fix->smem_len);
81dee67e215b23 Sudip Mukherjee 2015-03-03 878 info->screen_size = fix->smem_len;
81dee67e215b23 Sudip Mukherjee 2015-03-03 879 fix->line_length = line_length;
e359b6a863e19f Mike Rapoport 2015-10-26 880 fix->mmio_start = sm750_dev->vidreg_start;
81dee67e215b23 Sudip Mukherjee 2015-03-03 881 pr_info("fix->mmio_start = %lx\n", fix->mmio_start);
e359b6a863e19f Mike Rapoport 2015-10-26 882 fix->mmio_len = sm750_dev->vidreg_size;
81dee67e215b23 Sudip Mukherjee 2015-03-03 883 pr_info("fix->mmio_len = %x\n", fix->mmio_len);
b610e1193a917f Matej Dujava 2020-04-30 884
b610e1193a917f Matej Dujava 2020-04-30 885 lynxfb_set_visual_mode(info);
81dee67e215b23 Sudip Mukherjee 2015-03-03 886
81dee67e215b23 Sudip Mukherjee 2015-03-03 887 /* set var */
81dee67e215b23 Sudip Mukherjee 2015-03-03 888 var->activate = FB_ACTIVATE_NOW;
81dee67e215b23 Sudip Mukherjee 2015-03-03 889 var->accel_flags = 0;
81dee67e215b23 Sudip Mukherjee 2015-03-03 890 var->vmode = FB_VMODE_NONINTERLACED;
81dee67e215b23 Sudip Mukherjee 2015-03-03 891
81dee67e215b23 Sudip Mukherjee 2015-03-03 892 pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 893 info->cmap.start, info->cmap.len,
81dee67e215b23 Sudip Mukherjee 2015-03-03 894 info->cmap.red, info->cmap.green, info->cmap.blue,
81dee67e215b23 Sudip Mukherjee 2015-03-03 895 info->cmap.transp);
81dee67e215b23 Sudip Mukherjee 2015-03-03 896
61c507cf652da1 Michel von Czettritz 2015-03-26 897 ret = fb_alloc_cmap(&info->cmap, 256, 0);
61c507cf652da1 Michel von Czettritz 2015-03-26 898 if (ret < 0) {
008272072d61a8 Masanari Iida 2015-05-28 899 pr_err("Could not allocate memory for cmap.\n");
81dee67e215b23 Sudip Mukherjee 2015-03-03 900 goto exit;
81dee67e215b23 Sudip Mukherjee 2015-03-03 901 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 902
81dee67e215b23 Sudip Mukherjee 2015-03-03 903 pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n",
81dee67e215b23 Sudip Mukherjee 2015-03-03 904 info->cmap.start, info->cmap.len,
81dee67e215b23 Sudip Mukherjee 2015-03-03 905 info->cmap.red, info->cmap.green, info->cmap.blue,
81dee67e215b23 Sudip Mukherjee 2015-03-03 906 info->cmap.transp);
81dee67e215b23 Sudip Mukherjee 2015-03-03 907
81dee67e215b23 Sudip Mukherjee 2015-03-03 908 exit:
81dee67e215b23 Sudip Mukherjee 2015-03-03 909 lynxfb_ops_check_var(var, info);
81dee67e215b23 Sudip Mukherjee 2015-03-03 910 return ret;
81dee67e215b23 Sudip Mukherjee 2015-03-03 911 }
81dee67e215b23 Sudip Mukherjee 2015-03-03 912
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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