tree: https://github.com/avpatel/linux.git riscv_kvm_v10 head: adf8e35ae72bfdf0ce6f00f7c30923ea8f791748 commit: ccdc1f5cf0b366a9a0600bfd4b5333f2fc8b7351 [5/31] RISC-V: Introduce a new config for SBI v0.1 config: riscv-allnoconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout ccdc1f5cf0b366a9a0600bfd4b5333f2fc8b7351 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): pr_warn("remote fence extension is not available in SBI v%lu.%lu\n", ^~~~~~~ arch/riscv/kernel/sbi.c:83:61: note: format string is defined here pr_warn("remote fence extension is not available in SBI v%lu.%lu\n", ~~^ %u In file included from include/linux/printk.h:7:0, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/pm.h:11, from arch/riscv/kernel/sbi.c:4: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:12:22: note: in expansion of macro 'KERN_SOH' #define KERN_WARNING KERN_SOH "4" /* warning conditions */ ^~~~~~~~ include/linux/printk.h:306:9: note: in expansion of macro 'KERN_WARNING' printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~~~~ include/linux/printk.h:307:17: note: in expansion of macro 'pr_warning' #define pr_warn pr_warning ^~~~~~~~~~ arch/riscv/kernel/sbi.c:83:2: note: in expansion of macro 'pr_warn' pr_warn("remote fence extension is not available in SBI v%lu.%lu\n", ^~~~~~~ arch/riscv/kernel/sbi.c:83:65: note: format string is defined here pr_warn("remote fence extension is not available in SBI v%lu.%lu\n", ~~^ %u arch/riscv/kernel/sbi.c: In function 'sbi_remote_fence_i': arch/riscv/kernel/sbi.c:240:15: error: 'SBI_EXT_0_1_REMOTE_FENCE_I' undeclared (first use in this function) __sbi_rfence(SBI_EXT_0_1_REMOTE_FENCE_I, 0, ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/kernel/sbi.c: In function 'sbi_remote_sfence_vma': arch/riscv/kernel/sbi.c:258:15: error: 'SBI_EXT_0_1_REMOTE_SFENCE_VMA' undeclared (first use in this function) __sbi_rfence(SBI_EXT_0_1_REMOTE_SFENCE_VMA, 0, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/kernel/sbi.c: In function 'sbi_remote_sfence_vma_asid': arch/riscv/kernel/sbi.c:279:15: error: 'SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID' undeclared (first use in this function) __sbi_rfence(SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID, 0, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/kernel/sbi.c: In function 'sbi_probe_extension': arch/riscv/kernel/sbi.c:292:16: error: storage size of 'ret' isn't known struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c:294:18: error: 'SBI_EXT_BASE' undeclared (first use in this function); did you mean 'BIT_MASK'? ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_PROBE_EXT, extid, 0, 0, 0, 0, 0); ^~~~~~~~~~~~ BIT_MASK arch/riscv/kernel/sbi.c:294:32: error: 'SBI_BASE_PROBE_EXT' undeclared (first use in this function) ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_PROBE_EXT, extid, 0, 0, 0, 0, 0); ^~~~~~~~~~~~~~~~~~ arch/riscv/kernel/sbi.c:292:16: warning: unused variable 'ret' [-Wunused-variable] struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c: In function 'sbi_get_spec_version': arch/riscv/kernel/sbi.c:305:16: error: storage size of 'ret' isn't known struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c:307:18: error: 'SBI_EXT_BASE' undeclared (first use in this function); did you mean 'BIT_MASK'? ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_GET_SPEC_VERSION, ^~~~~~~~~~~~ BIT_MASK arch/riscv/kernel/sbi.c:307:32: error: 'SBI_BASE_GET_SPEC_VERSION' undeclared (first use in this function) ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_GET_SPEC_VERSION, ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/riscv/kernel/sbi.c:305:16: warning: unused variable 'ret' [-Wunused-variable] struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c: In function 'sbi_get_firmware_id': arch/riscv/kernel/sbi.c:317:16: error: storage size of 'ret' isn't known struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c:319:18: error: 'SBI_EXT_BASE' undeclared (first use in this function); did you mean 'BIT_MASK'? ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_GET_IMP_ID, ^~~~~~~~~~~~ BIT_MASK arch/riscv/kernel/sbi.c:319:32: error: 'SBI_BASE_GET_IMP_ID' undeclared (first use in this function) ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_GET_IMP_ID, ^~~~~~~~~~~~~~~~~~~ arch/riscv/kernel/sbi.c:317:16: warning: unused variable 'ret' [-Wunused-variable] struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c: In function 'sbi_get_firmware_version': arch/riscv/kernel/sbi.c:329:16: error: storage size of 'ret' isn't known struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c:331:18: error: 'SBI_EXT_BASE' undeclared (first use in this function); did you mean 'BIT_MASK'? ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_GET_IMP_VERSION, ^~~~~~~~~~~~ BIT_MASK arch/riscv/kernel/sbi.c:331:32: error: 'SBI_BASE_GET_IMP_VERSION' undeclared (first use in this function); did you mean '__GXX_ABI_VERSION'? ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_GET_IMP_VERSION, ^~~~~~~~~~~~~~~~~~~~~~~~ __GXX_ABI_VERSION arch/riscv/kernel/sbi.c:329:16: warning: unused variable 'ret' [-Wunused-variable] struct sbiret ret; ^~~ arch/riscv/kernel/sbi.c: In function 'sbi_power_off': sbi_shutdown(); ^~~~~~~~~~~~ In file included from include/linux/printk.h:7:0, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/pm.h:11, from arch/riscv/kernel/sbi.c:4: arch/riscv/kernel/sbi.c: In function 'sbi_init': include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 2 has type 'int' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' #define KERN_INFO KERN_SOH "6" /* informational */ ^~~~~~~~ include/linux/printk.h:311:9: note: in expansion of macro 'KERN_INFO' printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~ arch/riscv/kernel/sbi.c:353:2: note: in expansion of macro 'pr_info' pr_info("SBI specification v%lu.%lu detected\n", ^~~~~~~ arch/riscv/kernel/sbi.c:353:32: note: format string is defined here pr_info("SBI specification v%lu.%lu detected\n", ~~^ %u In file included from include/linux/printk.h:7:0, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/pm.h:11, from arch/riscv/kernel/sbi.c:4: include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Wformat=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:14:19: note: in expansion of macro 'KERN_SOH' #define KERN_INFO KERN_SOH "6" /* informational */ ^~~~~~~~ include/linux/printk.h:311:9: note: in expansion of macro 'KERN_INFO' printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~~ arch/riscv/kernel/sbi.c:353:2: note: in expansion of macro 'pr_info' pr_info("SBI specification v%lu.%lu detected\n", ^~~~~~~ arch/riscv/kernel/sbi.c:353:36: note: format string is defined here pr_info("SBI specification v%lu.%lu detected\n", ~~^ %u arch/riscv/kernel/sbi.c:356:7: error: implicit declaration of function 'sbi_spec_is_0_1' [-Werror=implicit-function-declaration] if (!sbi_spec_is_0_1()) { ^~~~~~~~~~~~~~~ arch/riscv/kernel/sbi.c: In function 'sbi_get_spec_version': arch/riscv/kernel/sbi.c:313:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ arch/riscv/kernel/sbi.c: In function 'sbi_get_firmware_id': arch/riscv/kernel/sbi.c:325:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ arch/riscv/kernel/sbi.c: In function 'sbi_get_firmware_version': arch/riscv/kernel/sbi.c:337:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ cc1: some warnings being treated as errors vim +/sbi_shutdown +341 arch/riscv/kernel/sbi.c 16e90702b40cf6 Atish Patra 2019-11-26 326 16e90702b40cf6 Atish Patra 2019-11-26 327 static long sbi_get_firmware_version(void) 16e90702b40cf6 Atish Patra 2019-11-26 328 { 16e90702b40cf6 Atish Patra 2019-11-26 329 struct sbiret ret; 16e90702b40cf6 Atish Patra 2019-11-26 330 16e90702b40cf6 Atish Patra 2019-11-26 @331 ret = sbi_ecall(SBI_EXT_BASE, SBI_BASE_GET_IMP_VERSION, 16e90702b40cf6 Atish Patra 2019-11-26 332 0, 0, 0, 0, 0, 0); 16e90702b40cf6 Atish Patra 2019-11-26 333 if (!ret.error) 16e90702b40cf6 Atish Patra 2019-11-26 334 return ret.value; 16e90702b40cf6 Atish Patra 2019-11-26 335 else 16e90702b40cf6 Atish Patra 2019-11-26 336 return sbi_err_map_linux_errno(ret.error); 16e90702b40cf6 Atish Patra 2019-11-26 337 } 16e90702b40cf6 Atish Patra 2019-11-26 338 3320648ecc3819 Christoph Hellwig 2019-10-28 339 static void sbi_power_off(void) 3320648ecc3819 Christoph Hellwig 2019-10-28 340 { 3320648ecc3819 Christoph Hellwig 2019-10-28 @341 sbi_shutdown(); 3320648ecc3819 Christoph Hellwig 2019-10-28 342 } 3320648ecc3819 Christoph Hellwig 2019-10-28 343 :::::: The code at line 341 was first introduced by commit :::::: 3320648ecc38190caad298fbbce949f591a10253 riscv: cleanup the default power off implementation :::::: TO: Christoph Hellwig <hch(a)lst.de&gt; :::::: CC: Paul Walmsley <paul.walmsley(a)sifive.com&gt; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation