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charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: baeb9a7d8b60b021d907127509c44507539c15e5 commit: 3aff0c459e77ac0fb1c4d6884433467f797f7357 RISC-V: Drop invalid test from CONFIG_AS_HAS_OPTION_ARCH date: 7 months ago config: riscv-randconfig-r113-20240920 (https://download.01.org/0day-ci/archive/20240921/202409210356.qCeOh9PA-lkp@intel.com/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 8663a75fa2f31299ab8d1d90288d9df92aadee88) reproduce: (https://download.01.org/0day-ci/archive/20240921/202409210356.qCeOh9PA-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/202409210356.qCeOh9PA-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> arch/riscv/kernel/signal.c:129:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __user *datap @@ got void * @@ arch/riscv/kernel/signal.c:129:15: sparse: expected void [noderef] __user *datap arch/riscv/kernel/signal.c:129:15: sparse: got void * >> arch/riscv/kernel/signal.c:129:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __user *datap @@ got void * @@ arch/riscv/kernel/signal.c:129:15: sparse: expected void [noderef] __user *datap arch/riscv/kernel/signal.c:129:15: sparse: got void * >> arch/riscv/kernel/signal.c:129:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __user *datap @@ got void * @@ arch/riscv/kernel/signal.c:129:15: sparse: expected void [noderef] __user *datap arch/riscv/kernel/signal.c:129:15: sparse: got void * >> arch/riscv/kernel/signal.c:129:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __user *datap @@ got void * @@ arch/riscv/kernel/signal.c:129:15: sparse: expected void [noderef] __user *datap arch/riscv/kernel/signal.c:129:15: sparse: got void * vim +129 arch/riscv/kernel/signal.c 8ee0b41898fa26 Greentime Hu 2023-06-05 110 8ee0b41898fa26 Greentime Hu 2023-06-05 111 /* 8ee0b41898fa26 Greentime Hu 2023-06-05 112 * Restore Vector extension context from the user's signal frame. This function 8ee0b41898fa26 Greentime Hu 2023-06-05 113 * assumes a valid extension header. So magic and size checking must be done by 8ee0b41898fa26 Greentime Hu 2023-06-05 114 * the caller. 8ee0b41898fa26 Greentime Hu 2023-06-05 115 */ 8ee0b41898fa26 Greentime Hu 2023-06-05 116 static long __restore_v_state(struct pt_regs *regs, void __user *sc_vec) 8ee0b41898fa26 Greentime Hu 2023-06-05 117 { 8ee0b41898fa26 Greentime Hu 2023-06-05 118 long err; 8ee0b41898fa26 Greentime Hu 2023-06-05 119 struct __sc_riscv_v_state __user *state = sc_vec; 8ee0b41898fa26 Greentime Hu 2023-06-05 120 void __user *datap; 8ee0b41898fa26 Greentime Hu 2023-06-05 121 8ee0b41898fa26 Greentime Hu 2023-06-05 122 /* Copy everything of __sc_riscv_v_state except datap. */ 8ee0b41898fa26 Greentime Hu 2023-06-05 123 err = __copy_from_user(¤t->thread.vstate, &state->v_state, 8ee0b41898fa26 Greentime Hu 2023-06-05 124 offsetof(struct __riscv_v_ext_state, datap)); 8ee0b41898fa26 Greentime Hu 2023-06-05 125 if (unlikely(err)) 8ee0b41898fa26 Greentime Hu 2023-06-05 126 return err; 8ee0b41898fa26 Greentime Hu 2023-06-05 127 8ee0b41898fa26 Greentime Hu 2023-06-05 128 /* Copy the pointer datap itself. */ 8ee0b41898fa26 Greentime Hu 2023-06-05 @129 err = __get_user(datap, &state->v_state.datap); 8ee0b41898fa26 Greentime Hu 2023-06-05 130 if (unlikely(err)) 8ee0b41898fa26 Greentime Hu 2023-06-05 131 return err; 8ee0b41898fa26 Greentime Hu 2023-06-05 132 /* 8ee0b41898fa26 Greentime Hu 2023-06-05 133 * Copy the whole vector content from user space datap. Use 8ee0b41898fa26 Greentime Hu 2023-06-05 134 * copy_from_user to prevent information leak. 8ee0b41898fa26 Greentime Hu 2023-06-05 135 */ 8ee0b41898fa26 Greentime Hu 2023-06-05 136 err = copy_from_user(current->thread.vstate.datap, datap, riscv_v_vsize); 8ee0b41898fa26 Greentime Hu 2023-06-05 137 if (unlikely(err)) 8ee0b41898fa26 Greentime Hu 2023-06-05 138 return err; 8ee0b41898fa26 Greentime Hu 2023-06-05 139 7df56cbc27e423 Andy Chiu 2024-01-15 140 riscv_v_vstate_set_restore(current, regs); 8ee0b41898fa26 Greentime Hu 2023-06-05 141 8ee0b41898fa26 Greentime Hu 2023-06-05 142 return err; 8ee0b41898fa26 Greentime Hu 2023-06-05 143 } 8ee0b41898fa26 Greentime Hu 2023-06-05 144 #else 8ee0b41898fa26 Greentime Hu 2023-06-05 145 #define save_v_state(task, regs) (0) 8ee0b41898fa26 Greentime Hu 2023-06-05 146 #define __restore_v_state(task, regs) (0) 8ee0b41898fa26 Greentime Hu 2023-06-05 147 #endif 8ee0b41898fa26 Greentime Hu 2023-06-05 148 :::::: The code at line 129 was first introduced by commit :::::: 8ee0b41898fa26f66e32237f179b6989c65600d6 riscv: signal: Add sigcontext save/restore for vector :::::: TO: Greentime Hu :::::: CC: Palmer Dabbelt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki