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@i...) 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@i...) 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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