tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 5c63bd0fa5e86474d30ecd06d67f2393de081434 commit: 7add7cc0243793dca7bdeeb53c37212a87076c69 [6289/23811] hisi_sas: add the bist loopback feature. config: arm64-randconfig-r111-20241003 (https://download.01.org/0day-ci/archive/20241004/202410041051.A286AcSf-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce: (https://download.01.org/0day-ci/archive/20241004/202410041051.A286AcSf-lkp@i...) 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/202410041051.A286AcSf-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) drivers/scsi/hisi_sas/hisi_sas_main.c:1660:52: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [assigned] [usertype] tag_of_task_to_be_managed @@ got restricted __le16 [usertype] @@ drivers/scsi/hisi_sas/hisi_sas_main.c:1660:52: sparse: expected unsigned short [assigned] [usertype] tag_of_task_to_be_managed drivers/scsi/hisi_sas/hisi_sas_main.c:1660:52: sparse: got restricted __le16 [usertype] drivers/scsi/hisi_sas/hisi_sas_main.c:1917:52: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned short [assigned] [usertype] tag_of_task_to_be_managed @@ got restricted __le16 [usertype] @@ drivers/scsi/hisi_sas/hisi_sas_main.c:1917:52: sparse: expected unsigned short [assigned] [usertype] tag_of_task_to_be_managed drivers/scsi/hisi_sas/hisi_sas_main.c:1917:52: sparse: got restricted __le16 [usertype] drivers/scsi/hisi_sas/hisi_sas_main.c:2800:12: sparse: sparse: symbol 'hisi_sas_debugfs_to_reg_name' was not declared. Should it be static? drivers/scsi/hisi_sas/hisi_sas_main.c:2827:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2827:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2827:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2827:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2827:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2827:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2830:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2830:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2830:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2830:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2830:36: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2830:36: sparse: sparse: cast to restricted __le32

...

drivers/scsi/hisi_sas/hisi_sas_main.c:2888:9: sparse: sparse: symbol 'hisi_sas_debugfs_bist_linkrate_write' was not declared. Should it be static? drivers/scsi/hisi_sas/hisi_sas_main.c:2979:9: sparse: sparse: symbol 'hisi_sas_debugfs_bist_code_mode_write' was not declared. Should it be static? drivers/scsi/hisi_sas/hisi_sas_main.c:3034:9: sparse: sparse: symbol 'hisi_sas_debugfs_bist_phy_write' was not declared. Should it be static? drivers/scsi/hisi_sas/hisi_sas_main.c:3120:9: sparse: sparse: symbol 'hisi_sas_debugfs_bist_mode_write' was not declared. Should it be static? drivers/scsi/hisi_sas/hisi_sas_main.c:3174:9: sparse: sparse: symbol 'hisi_sas_debugfs_bist_enable_write' was not declared. Should it be static? drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3277:45: sparse: sparse: cast to restricted __le64 drivers/scsi/hisi_sas/hisi_sas_main.c:3296:42: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:3296:42: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:3296:42: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:3296:42: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:3296:42: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:3296:42: sparse: sparse: cast to restricted __le32 drivers/scsi/hisi_sas/hisi_sas_main.c:2801:1: warning: no previous prototype for 'hisi_sas_debugfs_to_reg_name' [-Wmissing-prototypes] 2801 | hisi_sas_debugfs_to_reg_name(int off, int base_off, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_main.c:2888:9: warning: no previous prototype for 'hisi_sas_debugfs_bist_linkrate_write' [-Wmissing-prototypes] 2888 | ssize_t hisi_sas_debugfs_bist_linkrate_write(struct file *filp, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_main.c:2979:9: warning: no previous prototype for 'hisi_sas_debugfs_bist_code_mode_write' [-Wmissing-prototypes] 2979 | ssize_t hisi_sas_debugfs_bist_code_mode_write(struct file *filp, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_main.c:3034:9: warning: no previous prototype for 'hisi_sas_debugfs_bist_phy_write' [-Wmissing-prototypes] 3034 | ssize_t hisi_sas_debugfs_bist_phy_write(struct file *filp, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_main.c:3120:9: warning: no previous prototype for 'hisi_sas_debugfs_bist_mode_write' [-Wmissing-prototypes] 3120 | ssize_t hisi_sas_debugfs_bist_mode_write(struct file *filp, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_main.c:3174:9: warning: no previous prototype for 'hisi_sas_debugfs_bist_enable_write' [-Wmissing-prototypes] 3174 | ssize_t hisi_sas_debugfs_bist_enable_write(struct file *filp, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/scsi/libsas.h:36, from include/scsi/sas_ata.h:29, from drivers/scsi/hisi_sas/hisi_sas.h:29, from drivers/scsi/hisi_sas/hisi_sas_main.c:12: In function 'scsi_prot_sglist', inlined from 'hisi_sas_dif_dma_map' at drivers/scsi/hisi_sas/hisi_sas_main.c:448:2: include/scsi/scsi_cmnd.h:333:19: warning: 'scsi_cmnd' may be used uninitialized [-Wmaybe-uninitialized] 333 | return cmd->prot_sdb ? cmd->prot_sdb->table.sgl : NULL; | ~~~^~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_main.c: In function 'hisi_sas_dif_dma_map': drivers/scsi/hisi_sas/hisi_sas_main.c:418:27: note: 'scsi_cmnd' was declared here 418 | struct scsi_cmnd *scsi_cmnd; | ^~~~~~~~~ In file included from include/asm-generic/preempt.h:5, from ./arch/arm64/include/generated/asm/preempt.h:1, from include/linux/preempt.h:81, from include/linux/spinlock.h:51, from include/linux/mmzone.h:9, from include/linux/gfp.h:6, from include/linux/slab.h:15, from include/linux/resource_ext.h:19, from include/linux/acpi.h:26, from drivers/scsi/hisi_sas/hisi_sas.h:15: In function 'check_object_size', inlined from 'check_copy_size' at include/linux/thread_info.h:150:2, inlined from 'copy_from_user' at include/linux/uaccess.h:143:6, inlined from 'hisi_sas_debugfs_trigger_dump_write' at drivers/scsi/hisi_sas/hisi_sas_main.c:3550:6: include/linux/thread_info.h:119:17: warning: 'buf' may be used uninitialized [-Wmaybe-uninitialized] 119 | __check_object_size(ptr, n, to_user); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/thread_info.h: In function 'hisi_sas_debugfs_trigger_dump_write': include/linux/thread_info.h:112:13: note: by argument 1 of type 'const void *' to '__check_object_size' declared here 112 | extern void __check_object_size(const void *ptr, unsigned long n, | ^~~~~~~~~~~~~~~~~~~ drivers/scsi/hisi_sas/hisi_sas_main.c:3537:12: note: 'buf' declared here 3537 | u8 buf[8]; | ^~~

vim +/hisi_sas_debugfs_bist_linkrate_write +2888 drivers/scsi/hisi_sas/hisi_sas_main.c 2887

2888 ssize_t hisi_sas_debugfs_bist_linkrate_write(struct file *filp, 2889 const char __user *buf, 2890 size_t count, loff_t *ppos) 2891 { 2892 struct seq_file *m = filp->private_data; 2893 struct hisi_hba *hisi_hba = m->private; 2894 char kbuf[16] = {}, *pkbuf; 2895 bool found = false; 2896 int i; 2897 2898 if (hisi_hba->bist_loopback_enable) 2899 return -EINVAL; 2900 2901 if (count >= sizeof(kbuf)) 2902 return -EINVAL; 2903 2904 if (copy_from_user(kbuf, buf, count)) 2905 return -EINVAL; 2906 2907 pkbuf = strstrip(kbuf); 2908 2909 for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_linkrate); i++) { 2910 if (!strncmp(hisi_sas_debugfs_loop_linkrate[i].name, 2911 pkbuf, 16)) { 2912 hisi_hba->bist_loopback_linkrate = 2913 hisi_sas_debugfs_loop_linkrate[i].value; 2914 found = true; 2915 break; 2916 } 2917 } 2918 2919 if (!found) { 2920 dev_err(hisi_hba->dev, "unknown mode\n"); 2921 return -EINVAL; 2922 } 2923 2924 return count; 2925 } 2926 2927 static int hisi_sas_debugfs_bist_linkrate_open(struct inode *inode, 2928 struct file *filp) 2929 { 2930 return single_open(filp, hisi_sas_debugfs_bist_linkrate_show, 2931 inode->i_private); 2932 } 2933 2934 static const struct file_operations hisi_sas_debugfs_bist_linkrate_ops = { 2935 .open = hisi_sas_debugfs_bist_linkrate_open, 2936 .read = seq_read, 2937 .write = hisi_sas_debugfs_bist_linkrate_write, 2938 .llseek = seq_lseek, 2939 .release = single_release, 2940 .owner = THIS_MODULE, 2941 }; 2942 2943 static struct { 2944 int value; 2945 char *name; 2946 } hisi_sas_debugfs_loop_code_mode[] = { 2947 { HISI_SAS_BIST_CODE_MODE_PRBS7, "PRBS7" }, 2948 { HISI_SAS_BIST_CODE_MODE_PRBS23, "PRBS23" }, 2949 { HISI_SAS_BIST_CODE_MODE_PRBS31, "PRBS31" }, 2950 { HISI_SAS_BIST_CODE_MODE_JTPAT, "JTPAT" }, 2951 { HISI_SAS_BIST_CODE_MODE_CJTPAT, "CJTPAT" }, 2952 { HISI_SAS_BIST_CODE_MODE_SCRAMBED_0, "SCRAMBED_0" }, 2953 { HISI_SAS_BIST_CODE_MODE_TRAIN, "TRAIN" }, 2954 { HISI_SAS_BIST_CODE_MODE_TRAIN_DONE, "TRAIN_DONE" }, 2955 { HISI_SAS_BIST_CODE_MODE_HFTP, "HFTP" }, 2956 { HISI_SAS_BIST_CODE_MODE_MFTP, "MFTP" }, 2957 { HISI_SAS_BIST_CODE_MODE_LFTP, "LFTP" }, 2958 { HISI_SAS_BIST_CODE_MODE_FIXED_DATA, "FIXED_DATA" }, 2959 }; 2960 2961 static int hisi_sas_debugfs_bist_code_mode_show(struct seq_file *s, void *p) 2962 { 2963 struct hisi_hba *hisi_hba = s->private; 2964 int i; 2965 2966 for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_code_mode); i++) { 2967 int match = (hisi_hba->bist_loopback_code_mode == 2968 hisi_sas_debugfs_loop_code_mode[i].value); 2969 2970 seq_printf(s, "%s%s%s ", match ? "[" : "", 2971 hisi_sas_debugfs_loop_code_mode[i].name, 2972 match ? "]" : ""); 2973 } 2974 seq_puts(s, "\n"); 2975 2976 return 0; 2977 } 2978 2979 ssize_t hisi_sas_debugfs_bist_code_mode_write(struct file *filp, 2980 const char __user *buf, 2981 size_t count, loff_t *ppos) 2982 { 2983 struct seq_file *m = filp->private_data; 2984 struct hisi_hba *hisi_hba = m->private; 2985 char kbuf[16] = {}, *pkbuf; 2986 bool found = false; 2987 int i; 2988 2989 if (hisi_hba->bist_loopback_enable) 2990 return -EINVAL; 2991 2992 if (count >= sizeof(kbuf)) 2993 return -EINVAL; 2994 2995 if (copy_from_user(kbuf, buf, count)) 2996 return -EINVAL; 2997 2998 pkbuf = strstrip(kbuf); 2999 3000 for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_code_mode); i++) { 3001 if (!strncmp(hisi_sas_debugfs_loop_code_mode[i].name, 3002 pkbuf, 16)) { 3003 hisi_hba->bist_loopback_code_mode = 3004 hisi_sas_debugfs_loop_code_mode[i].value; 3005 found = true; 3006 break; 3007 } 3008 } 3009 3010 if (!found) { 3011 dev_err(hisi_hba->dev, "unknown mode\n"); 3012 return -EINVAL; 3013 } 3014 3015 return count; 3016 } 3017 3018 static int hisi_sas_debugfs_bist_code_mode_open(struct inode *inode, 3019 struct file *filp) 3020 { 3021 return single_open(filp, hisi_sas_debugfs_bist_code_mode_show, 3022 inode->i_private); 3023 } 3024 3025 static const struct file_operations hisi_sas_debugfs_bist_code_mode_ops = { 3026 .open = hisi_sas_debugfs_bist_code_mode_open, 3027 .read = seq_read, 3028 .write = hisi_sas_debugfs_bist_code_mode_write, 3029 .llseek = seq_lseek, 3030 .release = single_release, 3031 .owner = THIS_MODULE, 3032 }; 3033 3034 ssize_t hisi_sas_debugfs_bist_phy_write(struct file *filp, 3035 const char __user *buf, 3036 size_t count, loff_t *ppos) 3037 { 3038 struct seq_file *m = filp->private_data; 3039 struct hisi_hba *hisi_hba = m->private; 3040 char kbuf[16] = {}, *pkbuf; 3041 int val, phy; 3042 3043 if (hisi_hba->bist_loopback_enable) 3044 return -EINVAL; 3045 3046 if (count >= sizeof(kbuf)) 3047 return -EINVAL; 3048 3049 if (copy_from_user(kbuf, buf, count)) 3050 return -EINVAL; 3051 3052 pkbuf = strstrip(kbuf); 3053 3054 val = kstrtoint(pkbuf, 0, &phy); 3055 if (val < 0) 3056 return val; 3057 3058 if (phy >= hisi_hba->n_phy) { 3059 dev_err(hisi_hba->dev, "phy index %d exceeds limit\n", phy); 3060 return -EINVAL; 3061 } 3062 3063 hisi_hba->bist_loopback_phy_id = phy; 3064 3065 return count; 3066 } 3067

-- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki