Hi Shivasharan, I love your patch! Perhaps something to improve: [auto build test WARNING on mkp-scsi/for-next] [also build test WARNING on v5.1-rc6 next-20190426] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Shivasharan-S/megaraid_sas-Driver-updates/20190426-182011 base: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) drivers/scsi/megaraid/megaraid_sas_base.c:96:5: sparse: symbol 'rdpq_enable' was not declared. Should it be static? drivers/scsi/megaraid/megaraid_sas_base.c:104:14: sparse: symbol 'scmd_timeout' was not declared. Should it be static? drivers/scsi/megaraid/megaraid_sas_base.c:4418:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:4418:21: expected restricted __le16 [usertype] flags drivers/scsi/megaraid/megaraid_sas_base.c:4418:21: got int drivers/scsi/megaraid/megaraid_sas_base.c:4653:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:4653:21: expected restricted __le16 [usertype] flags drivers/scsi/megaraid/megaraid_sas_base.c:4653:21: got int drivers/scsi/megaraid/megaraid_sas_base.c:6244:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:6244:21: expected restricted __le16 [usertype] flags drivers/scsi/megaraid/megaraid_sas_base.c:6244:21: got int drivers/scsi/megaraid/megaraid_sas_base.c:4325:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:4325:21: expected restricted __le16 [usertype] flags drivers/scsi/megaraid/megaraid_sas_base.c:4325:21: got int include/linux/slab.h:664:13: sparse: undefined identifier '__builtin_mul_overflow' drivers/scsi/megaraid/megaraid_sas_base.c:262:31: sparse: restricted __le16 degrades to integer drivers/scsi/megaraid/megaraid_sas_base.c:268:31: sparse: cast from restricted __le16 drivers/scsi/megaraid/megaraid_sas_base.c:394:29: sparse: cast to restricted __le32 drivers/scsi/megaraid/megaraid_sas_base.c:1183:32: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [unsigned] [usertype] opcode @@ got ed int [unsigned] [usertype] opcode @@ drivers/scsi/megaraid/megaraid_sas_base.c:1183:32: expected unsigned int [unsigned] [usertype] opcode drivers/scsi/megaraid/megaraid_sas_base.c:1183:32: got restricted __le32 [usertype] opcode drivers/scsi/megaraid/megaraid_sas_base.c:1881:25: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:1881:25: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:1969:33: sparse: cast to restricted __le32 drivers/scsi/megaraid/megaraid_sas_base.c:1977:34: sparse: cast to restricted __le32 drivers/scsi/megaraid/megaraid_sas_base.c:1915:27: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:2918:24: sparse: cast removes address space of expression >> drivers/scsi/megaraid/megaraid_sas_base.c:2923:41: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:2>*addr @@ got st volatile [noderef] <asn:2>*addr @@ drivers/scsi/megaraid/megaraid_sas_base.c:2923:41: expected void const volatile [noderef] <asn:2>*addr drivers/scsi/megaraid/megaraid_sas_base.c:2923:41: got restricted __le32 [usertype] * drivers/scsi/megaraid/megaraid_sas_base.c:2923:41: sparse: cast to restricted __le32 drivers/scsi/megaraid/megaraid_sas_base.c:3275:25: sparse: symbol 'megaraid_host_attrs' was not declared. Should it be static? include/linux/slab.h:664:13: sparse: not a function <noident> drivers/scsi/megaraid/megaraid_sas_base.c:4541:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:4765:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:4886:25: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:4886:25: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:4933:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:4953:25: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:5013:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:5770:58: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:5770:58: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:5776:42: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:5776:42: sparse: expression using sizeof(void) drivers/scsi/megaraid/megaraid_sas_base.c:5795:42: sparse: cast removes address space of expression drivers/scsi/megaraid/megaraid_sas_base.c:5794:57: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned int [noderef] [usertype] <asn:2>*<noident> @@ got eref] [usertype] <asn:2>*<noident> @@ drivers/scsi/megaraid/megaraid_sas_base.c:5799:34: sparse: cast removes address space of expression drivers/scsi/megaraid/megaraid_sas_base.c:5798:57: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned int [noderef] [usertype] <asn:2>*<noident> @@ got eref] [usertype] <asn:2>*<noident> @@ include/linux/slab.h:664:13: sparse: not a function <noident> drivers/scsi/megaraid/megaraid_sas_base.c:6108:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:6322:21: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] flags @@ got e] flags @@ drivers/scsi/megaraid/megaraid_sas_base.c:7049:44: sparse: restricted __le32 degrades to integer drivers/scsi/megaraid/megaraid_sas_base.c:7628:23: sparse: incorrect type in assignment (different base types) @@ expected int [signed] crash_support @@ got restrint [signed] crash_support @@ drivers/scsi/megaraid/megaraid_sas_base.c:7708:31: sparse: invalid assignment: &= drivers/scsi/megaraid/megaraid_sas_base.c:7799:36: sparse: incorrect type in assignment (different base types) @@ expected unsigned long [unsigned] [long] <noident> @@ got igned long [unsigned] [long] <noident> @@ drivers/scsi/megaraid/megaraid_sas_base.c:7801:36: sparse: incorrect type in assignment (different base types) @@ expected unsigned long [unsigned] [long] <noident> @@ got igned long [unsigned] [long] <noident> @@ drivers/scsi/megaraid/megaraid_sas_base.c:8044:21: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:1>*<noident> @@ got latile [noderef] <asn:1>*<noident> @@ drivers/scsi/megaraid/megaraid_sas_base.c:8045:21: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] <asn:1>*<noident> @@ got atile [noderef] <asn:1>*<noident> @@ drivers/scsi/megaraid/megaraid_sas_base.c:8243:46: sparse: restricted __le32 degrades to integer include/linux/slab.h:664:13: sparse: call with no type! vim +2923 drivers/scsi/megaraid/megaraid_sas_base.c 2903 2904 /* 2905 * megasas_dump_sys_regs - This function will dump system registers through 2906 * sysfs. 2907 * @reg_set: Pointer to System register set. 2908 * @buf: Buffer to which output is to be written. 2909 * @return: Number of bytes written to buffer. 2910 */ 2911 static inline ssize_t 2912 megasas_dump_sys_regs(void __iomem *reg_set, char *buf) 2913 { 2914 unsigned int i, sz = 256; 2915 int bytes_wrote = 0; 2916 char *loc = (char *)buf; 2917 2918 __le32 *reg = (__le32 *)reg_set; 2919 2920 for (i = 0; i < sz / sizeof(__le32); i++) { 2921 bytes_wrote += snprintf(loc + bytes_wrote, PAGE_SIZE, 2922 "%08x: %08x\n", (i * 4), > 2923 le32_to_cpu(readl(®[i]))); 2924 } 2925 return bytes_wrote; 2926 } 2927 /** 2928 * megasas_reset_bus_host - Bus & host reset handler entry point 2929 */ 2930 static int megasas_reset_bus_host(struct scsi_cmnd *scmd) 2931 { 2932 int ret; 2933 struct megasas_instance *instance; 2934 2935 instance = (struct megasas_instance *)scmd->device->host->hostdata; 2936 2937 scmd_printk(KERN_INFO, scmd, 2938 "OCR is requested due to IO timeout!!\n"); 2939 2940 scmd_printk(KERN_INFO, scmd, 2941 "SCSI host state: %d SCSI host busy: %d FW outstanding: %d\n", 2942 scmd->device->host->shost_state, 2943 scsi_host_busy(scmd->device->host), 2944 atomic_read(&instance->fw_outstanding)); 2945 /* 2946 * First wait for all commands to complete 2947 */ 2948 if (instance->adapter_type == MFI_SERIES) { 2949 ret = megasas_generic_reset(scmd); 2950 } else { 2951 megasas_dump_fusion_io(scmd); 2952 ret = megasas_reset_fusion(scmd->device->host, 2953 SCSIIO_TIMEOUT_OCR); 2954 } 2955 2956 return ret; 2957 } 2958 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
