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Mon, 11 Dec 2023 20:07:17 +0000 Date: Tue, 12 Dec 2023 04:06:29 +0800 From: kernel test robot To: Dan Carpenter Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Ingo Molnar , Luca Abeni Subject: drivers/video/fbdev/ffb.c:938:27: sparse: sparse: incorrect type in assignment (different address spaces) Message-ID: <202312120413.oh2xnDJm-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: a39b6ac3781d46ba18193c9dbb2110f31e9bffe9 commit: aa5222e92f8000ed3c1c38dddf11c83222aadfb3 sched/deadline: Don't use dubious signed bitfields date: 6 years ago config: sparc-randconfig-r122-20231116 (https://download.01.org/0day-ci/archive/20231212/202312120413.oh2xnDJm-lkp@intel.com/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231212/202312120413.oh2xnDJm-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202312120413.oh2xnDJm-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/video/fbdev/ffb.c:938:27: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected char [noderef] __iomem *screen_base @@ got char * @@ drivers/video/fbdev/ffb.c:938:27: sparse: expected char [noderef] __iomem *screen_base drivers/video/fbdev/ffb.c:938:27: sparse: got char * In file included from include/linux/workqueue.h:9, from include/linux/srcu.h:34, from include/linux/notifier.h:16, from include/linux/memory_hotplug.h:7, from include/linux/mmzone.h:780, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:22, from include/linux/module.h:13, from drivers/video/fbdev/ffb.c:9: include/linux/timer.h: In function 'timer_setup': include/linux/timer.h:159:30: warning: cast between incompatible function types from 'void (*)(struct timer_list *)' to 'void (*)(long unsigned int)' [-Wcast-function-type] 159 | __setup_timer(timer, (TIMER_FUNC_TYPE)callback, | ^ include/linux/timer.h:126:39: note: in definition of macro '__setup_timer' 126 | (_timer)->function = (_fn); 20- | ^~~ include/linux/timer.h: In function 'timer_setup_on_stack': include/linux/timer.h:167:39: warning: cast between incompatible function types from 'void (*)(struct timer_list *)' to 'void (*)(long unsigned int)' [-Wcast-function-type] 167 | __setup_timer_on_stack(timer, (TIMER_FUNC_TYPE)callback, | ^ include/linux/timer.h:133:39: note: in definition of macro '__setup_timer_on_stack' 133 | (_timer)->function = (_fn); 27- | ^~~ drivers/video/fbdev/ffb.c:673: warning: Function parameter or member 'blank' not described in 'ffb_blank' drivers/video/fbdev/ffb.c:673: warning: Excess function parameter 'blank_mode' description in 'ffb_blank' vim +938 drivers/video/fbdev/ffb.c ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 895 48c68c4f1b5424 drivers/video/ffb.c Greg Kroah-Hartman 2012-12-21 896 static int ffb_probe(struct platform_device *op) ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 897 { 61c7a080a5a061 drivers/video/ffb.c Grant Likely 2010-04-13 898 struct device_node *dp = op->dev.of_node; 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 899 struct ffb_fbc __iomem *fbc; 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 900 struct ffb_dac __iomem *dac; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 901 struct fb_info *info; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 902 struct ffb_par *par; 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 903 u32 dac_pnum, dac_rev, dac_mrev; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 904 int err; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 905 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 906 info = framebuffer_alloc(sizeof(struct ffb_par), &op->dev); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 907 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 908 err = -ENOMEM; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 909 if (!info) c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 910 goto out_err; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 911 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 912 par = info->par; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 913 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 914 spin_lock_init(&par->lock); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 915 par->fbc = of_ioremap(&op->resource[2], 0, 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 916 sizeof(struct ffb_fbc), "ffb fbc"); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 917 if (!par->fbc) c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 918 goto out_release_fb; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 919 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 920 par->dac = of_ioremap(&op->resource[1], 0, 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 921 sizeof(struct ffb_dac), "ffb dac"); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 922 if (!par->dac) c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 923 goto out_unmap_fbc; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 924 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 925 par->rop_cache = FFB_ROP_NEW; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 926 par->physbase = op->resource[0].start; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 927 ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 928 /* Don't mention copyarea, so SCROLL_REDRAW is always ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 929 * used. It is the fastest on this chip. ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 930 */ c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 931 info->flags = (FBINFO_DEFAULT | ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 932 /* FBINFO_HWACCEL_COPYAREA | */ ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 933 FBINFO_HWACCEL_FILLRECT | ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 934 FBINFO_HWACCEL_IMAGEBLIT); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 935 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 936 info->fbops = &ffb_ops; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 937 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 @938 info->screen_base = (char *) par->physbase + FFB_DFB24_POFF; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 939 info->pseudo_palette = par->pseudo_palette; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 940 6cd5a86b56ec8f drivers/video/ffb.c Robert Reif 2008-05-08 941 sbusfb_fill_var(&info->var, dp, 32); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 942 par->fbsize = PAGE_ALIGN(info->var.xres * info->var.yres * 4); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 943 ffb_fixup_var_rgb(&info->var); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 944 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 945 info->var.accel_flags = FB_ACCELF_TEXT; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 946 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 947 if (!strcmp(dp->name, "SUNW,afb")) c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 948 par->flags |= FFB_FLAG_AFB; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 949 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 950 par->board_type = of_getintprop_default(dp, "board_type", 0); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 951 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 952 fbc = par->fbc; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 953 if ((upa_readl(&fbc->ucsr) & FFB_UCSR_ALL_ERRORS) != 0) ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 954 upa_writel(FFB_UCSR_ALL_ERRORS, &fbc->ucsr); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 955 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 956 dac = par->dac; 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 957 upa_writel(FFB_DAC_DID, &dac->type); 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 958 dac_pnum = upa_readl(&dac->value); 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 959 dac_rev = (dac_pnum & FFB_DAC_DID_REV) >> FFB_DAC_DID_REV_SHIFT; 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 960 dac_pnum = (dac_pnum & FFB_DAC_DID_PNUM) >> FFB_DAC_DID_PNUM_SHIFT; 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 961 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 962 upa_writel(FFB_DAC_UCTRL, &dac->type); 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 963 dac_mrev = upa_readl(&dac->value); 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 964 dac_mrev = (dac_mrev & FFB_DAC_UCTRL_MANREV) >> 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 965 FFB_DAC_UCTRL_MANREV_SHIFT; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 966 ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 967 /* Elite3D has different DAC revision numbering, and no DAC revisions 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 968 * have the reversed meaning of cursor enable. Otherwise, Pacifica 1 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 969 * ramdacs with manufacturing revision less than 3 have inverted 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 970 * cursor logic. We identify Pacifica 1 as not Pacifica 2, the 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 971 * latter having a part number value of 0x236e. ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 972 */ c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 973 if ((par->flags & FFB_FLAG_AFB) || dac_pnum == 0x236e) { c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 974 par->flags &= ~FFB_FLAG_INVCURSOR; 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 975 } else { 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 976 if (dac_mrev < 3) c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 977 par->flags |= FFB_FLAG_INVCURSOR; 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 978 } 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 979 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 980 ffb_switch_from_graph(par); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 981 ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 982 /* Unblank it just to be sure. When there are multiple ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 983 * FFB/AFB cards in the system, or it is not the OBP ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 984 * chosen console, it will have video outputs off in ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 985 * the DAC. ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 986 */ 59f7137a1369c2 drivers/video/ffb.c Robert Reif 2008-05-03 987 ffb_blank(FB_BLANK_UNBLANK, info); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 988 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 989 if (fb_alloc_cmap(&info->cmap, 256, 0)) c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 990 goto out_unmap_dac; c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 991 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 992 ffb_init_fix(info); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 993 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 994 err = register_framebuffer(info); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 995 if (err < 0) c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 996 goto out_dealloc_cmap; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 997 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 998 dev_set_drvdata(&op->dev, info); ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 999 6d7e653300e30f drivers/video/fbdev/ffb.c Rob Herring 2017-08-07 1000 printk(KERN_INFO "%pOF: %s at %016lx, type %d, " 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 1001 "DAC pnum[%x] rev[%d] manuf_rev[%d]\n", 6d7e653300e30f drivers/video/fbdev/ffb.c Rob Herring 2017-08-07 1002 dp, c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1003 ((par->flags & FFB_FLAG_AFB) ? "AFB" : "FFB"), c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1004 par->physbase, par->board_type, 37db9a348ad425 drivers/video/ffb.c David S. Miller 2007-03-26 1005 dac_pnum, dac_rev, dac_mrev); 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 1006 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 1007 return 0; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 1008 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1009 out_dealloc_cmap: c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1010 fb_dealloc_cmap(&info->cmap); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1011 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1012 out_unmap_dac: 7b0e278519eba8 drivers/video/ffb.c Axel Lin 2011-02-08 1013 of_iounmap(&op->resource[1], par->dac, sizeof(struct ffb_dac)); 50312ce9dd794e drivers/video/ffb.c David S. Miller 2006-06-29 1014 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1015 out_unmap_fbc: c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1016 of_iounmap(&op->resource[2], par->fbc, sizeof(struct ffb_fbc)); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1017 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1018 out_release_fb: c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1019 framebuffer_release(info); c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1020 c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1021 out_err: c7f439b99efbea drivers/video/ffb.c David S. Miller 2007-07-27 1022 return err; ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 1023 } ^1da177e4c3f41 drivers/video/ffb.c Linus Torvalds 2005-04-16 1024 :::::: The code at line 938 was first introduced by commit :::::: c7f439b99efbea74c70a5531f92566db5a6731f2 [VIDEO]: Fix OOPS in all SBUS framebuffer drivers. :::::: TO: David S. Miller :::::: CC: David S. Miller -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki