[android-common:android12-kiwi-5.10 235/235] arch/x86/kernel/alternative.c:1541:2-3: Unneeded semicolon

[android-common:android12-kiwi-5.10 235/235] arch/x86/kernel/alternative.c:1541:2-3: Unneeded semicolon

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android12-kiwi-5.10
head:   8c66939857f7c1785dcf957b4374265db31c6af5
commit: 1f6e6683c46612baf01555e214d863aaa03c399b [235/235] x86/alternative: Relax text_poke_bp() constraint
config: x86_64-randconfig-r064-20260524 (https://download.01.org/0day-ci/archive/20260525/202605250044.G8sVBJa6-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3)

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>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605250044.G8sVBJa6-lkp@intel.com/

cocci warnings: (new ones prefixed by >>)
>> arch/x86/kernel/alternative.c:1541:2-3: Unneeded semicolon

vim +1541 arch/x86/kernel/alternative.c

  1509	
  1510	static void text_poke_loc_init(struct text_poke_loc *tp, void *addr,
  1511				       const void *opcode, size_t len, const void *emulate)
  1512	{
  1513		struct insn insn;
  1514		int ret, i;
  1515	
  1516		memcpy((void *)tp->text, opcode, len);
  1517		if (!emulate)
  1518			emulate = opcode;
  1519	
  1520		ret = insn_decode_kernel(&insn, emulate);
  1521		BUG_ON(ret < 0);
  1522	
  1523		tp->rel_addr = addr - (void *)_stext;
  1524		tp->len = len;
  1525		tp->opcode = insn.opcode.bytes[0];
  1526	
  1527		switch (tp->opcode) {
  1528		case RET_INSN_OPCODE:
  1529		case JMP32_INSN_OPCODE:
  1530		case JMP8_INSN_OPCODE:
  1531			/*
  1532			 * Control flow instructions without implied execution of the
  1533			 * next instruction can be padded with INT3.
  1534			 */
  1535			for (i = insn.length; i < len; i++)
  1536				BUG_ON(tp->text[i] != INT3_INSN_OPCODE);
  1537			break;
  1538	
  1539		default:
  1540			BUG_ON(len != insn.length);
> 1541		};
  1542	
  1543	
  1544		switch (tp->opcode) {
  1545		case INT3_INSN_OPCODE:
  1546		case RET_INSN_OPCODE:
  1547			break;
  1548	
  1549		case CALL_INSN_OPCODE:
  1550		case JMP32_INSN_OPCODE:
  1551		case JMP8_INSN_OPCODE:
  1552			tp->disp = insn.immediate.value;
  1553			break;
  1554	
  1555		default: /* assume NOP */
  1556			switch (len) {
  1557			case 2: /* NOP2 -- emulate as JMP8+0 */
  1558				BUG_ON(memcmp(emulate, ideal_nops[len], len));
  1559				tp->opcode = JMP8_INSN_OPCODE;
  1560				tp->disp = 0;
  1561				break;
  1562	
  1563			case 5: /* NOP5 -- emulate as JMP32+0 */
  1564				BUG_ON(memcmp(emulate, ideal_nops[NOP_ATOMIC5], len));
  1565				tp->opcode = JMP32_INSN_OPCODE;
  1566				tp->disp = 0;
  1567				break;
  1568	
  1569			default: /* unknown instruction */
  1570				BUG();
  1571			}
  1572			break;
  1573		}
  1574	}
  1575	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki