Hi Deepak, kernel test robot noticed the following build errors: [auto build test ERROR on shuah-kselftest/next] [also build test ERROR on shuah-kselftest/fixes tip/x86/core robh/for-next arnd-asm-generic/master tip/smp/core kees/for-next/execve linus/master v6.11-rc7] [cannot apply to akpm-mm/mm-everything next-20240913] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Deepak-Gupta/mm-Introduce-ARCH_HAS_USER_SHADOW_STACK/20240913-072124 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next patch link: https://lore.kernel.org/r/20240912231650.3740732-17-debug%40rivosinc.com patch subject: [PATCH v4 16/30] riscv/shstk: If needed allocate a new shadow stack on clone config: riscv-randconfig-r071-20240914 (https://download.01.org/0day-ci/archive/20240914/202409141139.mn5fTYCl-lkp@xxxxxxxxx/config) compiler: riscv64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240914/202409141139.mn5fTYCl-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202409141139.mn5fTYCl-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): In file included from arch/riscv/include/asm/processor.h:17, from arch/riscv/include/asm/thread_info.h:37, from include/linux/thread_info.h:60, from include/asm-generic/preempt.h:5, from ./arch/riscv/include/generated/asm/preempt.h:1, from include/linux/preempt.h:79, from include/linux/spinlock.h:56, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/mm.h:7, from arch/riscv/kernel/asm-offsets.c:10: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ -- In file included from arch/riscv/include/asm/processor.h:17, from include/linux/sched.h:13, from kernel/ptrace.c:13: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ In file included from include/linux/string.h:374, from include/linux/bitmap.h:13, from include/linux/cpumask.h:12, from arch/riscv/include/asm/processor.h:79: In function 'fortify_memcpy_chk', inlined from 'syscall_get_arguments.isra' at arch/riscv/include/asm/syscall.h:66:2: include/linux/fortify-string.h:580:25: warning: call to '__read_overflow2_field' declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning] 580 | __read_overflow2_field(q_size_field, size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from arch/riscv/include/asm/processor.h:17, from include/linux/mutex.h:19, from include/linux/notifier.h:14, from include/linux/clk.h:14, from lib/vsprintf.c:22: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ lib/vsprintf.c: In function 'va_format': lib/vsprintf.c:1683:9: warning: function 'va_format' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 1683 | buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va); | ^~~ -- In file included from arch/riscv/include/asm/processor.h:17, from include/linux/sched.h:13, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from lib/string_helpers.c:13: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ lib/string_helpers.c: In function 'string_get_size': lib/string_helpers.c:124:46: warning: '%03u' directive output may be truncated writing between 3 and 10 bytes into a region of size 7 [-Wformat-truncation=] 124 | snprintf(tmp, sizeof(tmp), ".%03u", remainder); | ^~~~ lib/string_helpers.c:124:44: note: directive argument in the range [0, 4294966295] 124 | snprintf(tmp, sizeof(tmp), ".%03u", remainder); | ^~~~~~~ lib/string_helpers.c:124:17: note: 'snprintf' output between 5 and 12 bytes into a destination of size 8 124 | snprintf(tmp, sizeof(tmp), ".%03u", remainder); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from arch/riscv/include/asm/processor.h:17, from arch/riscv/include/asm/thread_info.h:37, from include/linux/thread_info.h:60, from include/asm-generic/preempt.h:5, from ./arch/riscv/include/generated/asm/preempt.h:1, from include/linux/preempt.h:79, from include/linux/spinlock.h:56, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:17, from lib/test_bitops.c:10: >> arch/riscv/include/asm/usercfi.h:44:15: error: no previous prototype for 'get_shstk_base' [-Werror=missing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- In file included from arch/riscv/include/asm/processor.h:17, from include/linux/mutex.h:19, from kernel/locking/lockdep.c:30: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ In file included from kernel/locking/lockdep.c:62: kernel/locking/lockdep_internals.h:69:28: warning: 'LOCKF_USED_IN_IRQ_READ' defined but not used [-Wunused-const-variable=] 69 | static const unsigned long LOCKF_USED_IN_IRQ_READ = | ^~~~~~~~~~~~~~~~~~~~~~ kernel/locking/lockdep_internals.h:63:28: warning: 'LOCKF_ENABLED_IRQ_READ' defined but not used [-Wunused-const-variable=] 63 | static const unsigned long LOCKF_ENABLED_IRQ_READ = | ^~~~~~~~~~~~~~~~~~~~~~ kernel/locking/lockdep_internals.h:57:28: warning: 'LOCKF_USED_IN_IRQ' defined but not used [-Wunused-const-variable=] 57 | static const unsigned long LOCKF_USED_IN_IRQ = | ^~~~~~~~~~~~~~~~~ kernel/locking/lockdep_internals.h:51:28: warning: 'LOCKF_ENABLED_IRQ' defined but not used [-Wunused-const-variable=] 51 | static const unsigned long LOCKF_ENABLED_IRQ = | ^~~~~~~~~~~~~~~~~ -- In file included from arch/riscv/include/asm/processor.h:17, from arch/riscv/include/asm/thread_info.h:37, from include/linux/thread_info.h:60, from include/asm-generic/preempt.h:5, from ./arch/riscv/include/generated/asm/preempt.h:1, from include/linux/preempt.h:79, from include/linux/spinlock.h:56, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:17, from net/sunrpc/clnt.c:22: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ net/sunrpc/clnt.c: In function 'rpc_create': net/sunrpc/clnt.c:582:75: warning: '%s' directive output may be truncated writing up to 107 bytes into a region of size 48 [-Wformat-truncation=] 582 | snprintf(servername, sizeof(servername), "%s", | ^~ net/sunrpc/clnt.c:582:33: note: 'snprintf' output between 1 and 108 bytes into a destination of size 48 582 | snprintf(servername, sizeof(servername), "%s", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 583 | sun->sun_path); | ~~~~~~~~~~~~~~ -- In file included from arch/riscv/include/asm/processor.h:17, from arch/riscv/include/asm/thread_info.h:37, from include/linux/thread_info.h:60, from include/asm-generic/preempt.h:5, from ./arch/riscv/include/generated/asm/preempt.h:1, from include/linux/preempt.h:79, from include/linux/spinlock.h:56, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:17, from drivers/clk/clkdev.c:9: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ drivers/clk/clkdev.c: In function 'vclkdev_alloc': drivers/clk/clkdev.c:185:17: warning: function 'vclkdev_alloc' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 185 | res = vsnprintf(cla->dev_id, sizeof(cla->dev_id), dev_fmt, ap); | ^~~ -- riscv64-linux-ld: net/dns_resolver/dns_query.o: in function `get_shstk_base': >> arch/riscv/include/asm/usercfi.h:45: multiple definition of `get_shstk_base'; net/dns_resolver/dns_key.o:arch/riscv/include/asm/usercfi.h:45: first defined here -- In file included from arch/riscv/include/asm/processor.h:17, from include/linux/sched.h:13, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/miscdevice.h:7, from drivers/misc/xilinx_sdfec.c:13: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ drivers/misc/xilinx_sdfec.c: In function 'xsdfec_probe': drivers/misc/xilinx_sdfec.c:1404:57: warning: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size 6 [-Wformat-truncation=] 1404 | snprintf(xsdfec->dev_name, DEV_NAME_LEN, "xsdfec%d", xsdfec->dev_id); | ^~ drivers/misc/xilinx_sdfec.c:1404:50: note: directive argument in the range [0, 2147483647] 1404 | snprintf(xsdfec->dev_name, DEV_NAME_LEN, "xsdfec%d", xsdfec->dev_id); | ^~~~~~~~~~ drivers/misc/xilinx_sdfec.c:1404:9: note: 'snprintf' output between 8 and 17 bytes into a destination of size 12 1404 | snprintf(xsdfec->dev_name, DEV_NAME_LEN, "xsdfec%d", xsdfec->dev_id); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- In file included from arch/riscv/include/asm/processor.h:17, from include/linux/sched.h:13, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/node.h:18, from include/linux/cpu.h:17, from kernel/time/hrtimer.c:25: >> arch/riscv/include/asm/usercfi.h:44:15: warning: no previous prototype for 'get_shstk_base' [-Wmissing-prototypes] 44 | unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) | ^~~~~~~~~~~~~~ kernel/time/hrtimer.c:121:35: warning: initialized field overwritten [-Woverride-init] 121 | [CLOCK_REALTIME] = HRTIMER_BASE_REALTIME, | ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:121:35: note: (near initialization for 'hrtimer_clock_to_base_table[0]') kernel/time/hrtimer.c:122:35: warning: initialized field overwritten [-Woverride-init] 122 | [CLOCK_MONOTONIC] = HRTIMER_BASE_MONOTONIC, | ^~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:122:35: note: (near initialization for 'hrtimer_clock_to_base_table[1]') kernel/time/hrtimer.c:123:35: warning: initialized field overwritten [-Woverride-init] 123 | [CLOCK_BOOTTIME] = HRTIMER_BASE_BOOTTIME, | ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:123:35: note: (near initialization for 'hrtimer_clock_to_base_table[7]') kernel/time/hrtimer.c:124:35: warning: initialized field overwritten [-Woverride-init] 124 | [CLOCK_TAI] = HRTIMER_BASE_TAI, | ^~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:124:35: note: (near initialization for 'hrtimer_clock_to_base_table[11]') .. vim +/get_shstk_base +44 arch/riscv/include/asm/usercfi.h 43 > 44 unsigned long get_shstk_base(struct task_struct *task, unsigned long *size) > 45 { 46 return 0; 47 } 48 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
