[openeuler:OLK-6.6 3557/3557] drivers/arm/mm_monitor/spe-decoder/arm-spe-pkt-decoder.c:43:35: sparse: sparse: cast to restricted __le16

[openeuler:OLK-6.6 3557/3557] drivers/arm/mm_monitor/spe-decoder/arm-spe-pkt-decoder.c:43:35: sparse: sparse: cast to restricted __le16

[kernel test robot]

tree:   https://gitee.com/openeuler/kernel.git OLK-6.6
head:   04473ee9ed912a16fff0d8846ad565bbf3d63c77
commit: b8a759002c48f227d03084fb6b6213a3beaa44e3 [3557/3557] mm_monitor/mm_spe: Introduce standalone SPE profiling framework
config: arm64-randconfig-r132-20251218 (https://download.01.org/0day-ci/archive/20251222/202512220002.7l3mjSAD-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251222/202512220002.7l3mjSAD-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>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512220002.7l3mjSAD-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/arm/mm_monitor/spe-decoder/arm-spe-pkt-decoder.c:43:35: sparse: sparse: cast to restricted __le16
>> drivers/arm/mm_monitor/spe-decoder/arm-spe-pkt-decoder.c:46:35: sparse: sparse: cast to restricted __le32
>> drivers/arm/mm_monitor/spe-decoder/arm-spe-pkt-decoder.c:49:35: sparse: sparse: cast to restricted __le64

vim +43 drivers/arm/mm_monitor/spe-decoder/arm-spe-pkt-decoder.c

    26	
    27	static int arm_spe_get_payload(const unsigned char *buf, size_t len,
    28				       unsigned char ext_hdr,
    29				       struct arm_spe_pkt *packet)
    30	{
    31		size_t payload_len = arm_spe_payload_len(buf[ext_hdr]);
    32	
    33		if (len < 1 + ext_hdr + payload_len)
    34			return ARM_SPE_NEED_MORE_BYTES;
    35	
    36		buf += 1 + ext_hdr;
    37	
    38		switch (payload_len) {
    39		case 1:
    40			packet->payload = *(uint8_t *)buf;
    41			break;
    42		case 2:
  > 43			packet->payload = le16_to_cpu(*(uint16_t *)buf);
    44			break;
    45		case 4:
  > 46			packet->payload = le32_to_cpu(*(uint32_t *)buf);
    47			break;
    48		case 8:
  > 49			packet->payload = le64_to_cpu(*(uint64_t *)buf);
    50			break;
    51		default:
    52			return ARM_SPE_BAD_PACKET;
    53		}
    54	
    55		return 1 + ext_hdr + payload_len;
    56	}
    57	

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