* arch/riscv/kernel/traps.c:62 dump_instr() error: uninitialized symbol 'val'.
@ 2023-11-26 22:39 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-11-26 22:39 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Yunhui Cui <cuiyunhui@bytedance.com>
CC: Palmer Dabbelt <palmer@rivosinc.com>
CC: "Björn Töpel" <bjorn@rivosinc.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d2da77f431ac49b5763b88751a75f70daa46296c
commit: b8a03a634129b61a7ec69ece4460297ffbd790dc riscv: add userland instruction dump to RISC-V splats
date: 3 weeks ago
:::::: branch date: 2 hours ago
:::::: commit date: 3 weeks ago
config: riscv-randconfig-r071-20231126 (https://download.01.org/0day-ci/archive/20231127/202311270307.vlK7NGyN-lkp@intel.com/config)
compiler: riscv64-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231127/202311270307.vlK7NGyN-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 <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202311270307.vlK7NGyN-lkp@intel.com/
New smatch warnings:
arch/riscv/kernel/traps.c:62 dump_instr() error: uninitialized symbol 'val'.
Old smatch warnings:
arch/riscv/include/asm/syscall.h:88 syscall_handler() warn: inconsistent indenting
vim +/val +62 arch/riscv/kernel/traps.c
b8a03a634129b6 Yunhui Cui 2023-09-12 50
b8a03a634129b6 Yunhui Cui 2023-09-12 51 static void dump_instr(const char *loglvl, struct pt_regs *regs)
eb165bfa8eafc3 Björn Töpel 2023-01-19 52 {
eb165bfa8eafc3 Björn Töpel 2023-01-19 53 char str[sizeof("0000 ") * 12 + 2 + 1], *p = str;
eb165bfa8eafc3 Björn Töpel 2023-01-19 54 const u16 *insns = (u16 *)instruction_pointer(regs);
eb165bfa8eafc3 Björn Töpel 2023-01-19 55 long bad;
eb165bfa8eafc3 Björn Töpel 2023-01-19 56 u16 val;
eb165bfa8eafc3 Björn Töpel 2023-01-19 57 int i;
eb165bfa8eafc3 Björn Töpel 2023-01-19 58
eb165bfa8eafc3 Björn Töpel 2023-01-19 59 for (i = -10; i < 2; i++) {
b8a03a634129b6 Yunhui Cui 2023-09-12 60 bad = copy_code(regs, &val, &insns[i]);
eb165bfa8eafc3 Björn Töpel 2023-01-19 61 if (!bad) {
eb165bfa8eafc3 Björn Töpel 2023-01-19 @62 p += sprintf(p, i == 0 ? "(%04hx) " : "%04hx ", val);
eb165bfa8eafc3 Björn Töpel 2023-01-19 63 } else {
eb165bfa8eafc3 Björn Töpel 2023-01-19 64 printk("%sCode: Unable to access instruction at 0x%px.\n",
eb165bfa8eafc3 Björn Töpel 2023-01-19 65 loglvl, &insns[i]);
eb165bfa8eafc3 Björn Töpel 2023-01-19 66 return;
eb165bfa8eafc3 Björn Töpel 2023-01-19 67 }
eb165bfa8eafc3 Björn Töpel 2023-01-19 68 }
eb165bfa8eafc3 Björn Töpel 2023-01-19 69 printk("%sCode: %s\n", loglvl, str);
eb165bfa8eafc3 Björn Töpel 2023-01-19 70 }
eb165bfa8eafc3 Björn Töpel 2023-01-19 71
:::::: The code at line 62 was first introduced by commit
:::::: eb165bfa8eafc3d306e34b238e53aafb35dce102 riscv: Add instruction dump to RISC-V splats
:::::: TO: Björn Töpel <bjorn@rivosinc.com>
:::::: CC: Palmer Dabbelt <palmer@rivosinc.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
* arch/riscv/kernel/traps.c:62 dump_instr() error: uninitialized symbol 'val'.
@ 2024-10-30 12:39 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2024-10-30 12:39 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Yunhui Cui <cuiyunhui@bytedance.com>
CC: Palmer Dabbelt <palmer@rivosinc.com>
CC: "Björn Töpel" <bjorn@rivosinc.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c1e939a21eb111a6d6067b38e8e04b8809b64c4e
commit: b8a03a634129b61a7ec69ece4460297ffbd790dc riscv: add userland instruction dump to RISC-V splats
date: 12 months ago
:::::: branch date: 10 hours ago
:::::: commit date: 12 months ago
config: riscv-randconfig-r071-20241030 (https://download.01.org/0day-ci/archive/20241030/202410302031.iWYd3SJk-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
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>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202410302031.iWYd3SJk-lkp@intel.com/
New smatch warnings:
arch/riscv/kernel/traps.c:62 dump_instr() error: uninitialized symbol 'val'.
Old smatch warnings:
arch/riscv/include/asm/syscall.h:88 syscall_handler() warn: inconsistent indenting
arch/riscv/kernel/traps.c:375 is_valid_bugaddr() warn: unsigned 'pc' is never less than zero.
vim +/val +62 arch/riscv/kernel/traps.c
b8a03a634129b6 Yunhui Cui 2023-09-12 50
b8a03a634129b6 Yunhui Cui 2023-09-12 51 static void dump_instr(const char *loglvl, struct pt_regs *regs)
eb165bfa8eafc3 Björn Töpel 2023-01-19 52 {
eb165bfa8eafc3 Björn Töpel 2023-01-19 53 char str[sizeof("0000 ") * 12 + 2 + 1], *p = str;
eb165bfa8eafc3 Björn Töpel 2023-01-19 54 const u16 *insns = (u16 *)instruction_pointer(regs);
eb165bfa8eafc3 Björn Töpel 2023-01-19 55 long bad;
eb165bfa8eafc3 Björn Töpel 2023-01-19 56 u16 val;
eb165bfa8eafc3 Björn Töpel 2023-01-19 57 int i;
eb165bfa8eafc3 Björn Töpel 2023-01-19 58
eb165bfa8eafc3 Björn Töpel 2023-01-19 59 for (i = -10; i < 2; i++) {
b8a03a634129b6 Yunhui Cui 2023-09-12 60 bad = copy_code(regs, &val, &insns[i]);
eb165bfa8eafc3 Björn Töpel 2023-01-19 61 if (!bad) {
eb165bfa8eafc3 Björn Töpel 2023-01-19 @62 p += sprintf(p, i == 0 ? "(%04hx) " : "%04hx ", val);
eb165bfa8eafc3 Björn Töpel 2023-01-19 63 } else {
eb165bfa8eafc3 Björn Töpel 2023-01-19 64 printk("%sCode: Unable to access instruction at 0x%px.\n",
eb165bfa8eafc3 Björn Töpel 2023-01-19 65 loglvl, &insns[i]);
eb165bfa8eafc3 Björn Töpel 2023-01-19 66 return;
eb165bfa8eafc3 Björn Töpel 2023-01-19 67 }
eb165bfa8eafc3 Björn Töpel 2023-01-19 68 }
eb165bfa8eafc3 Björn Töpel 2023-01-19 69 printk("%sCode: %s\n", loglvl, str);
eb165bfa8eafc3 Björn Töpel 2023-01-19 70 }
eb165bfa8eafc3 Björn Töpel 2023-01-19 71
:::::: The code at line 62 was first introduced by commit
:::::: eb165bfa8eafc3d306e34b238e53aafb35dce102 riscv: Add instruction dump to RISC-V splats
:::::: TO: Björn Töpel <bjorn@rivosinc.com>
:::::: CC: Palmer Dabbelt <palmer@rivosinc.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
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