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Subject[asahilinux:bits/090-spi-hid 11/18] drivers/hid/spi-hid/spi-hid-apple-core.c:709:17: sparse: sparse: incorrect type in argument 3 (different base types)
tree:   https://github.com/AsahiLinux/linux bits/090-spi-hid
head: 2902ed1bd2d6ac439a835c53841122c7f3455a6c
commit: caee9bbb3f5dd71fbcc4690a7c2e97ff6964ab92 [11/18] WIP: HID: transport: spi: add Apple SPI transport
config: arm64-randconfig-s042-20220715 (https://download.01.org/0day-ci/archive/20220717/202207170204.jVYBqcPh-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/AsahiLinux/linux/commit/caee9bbb3f5dd71fbcc4690a7c2e97ff6964ab92
git remote add asahilinux https://github.com/AsahiLinux/linux
git fetch --no-tags asahilinux bits/090-spi-hid
git checkout caee9bbb3f5dd71fbcc4690a7c2e97ff6964ab92
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kernel/ drivers/hid/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
drivers/hid/spi-hid/spi-hid-apple-core.c:233:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] length @@ got unsigned long @@
drivers/hid/spi-hid/spi-hid-apple-core.c:233:21: sparse: expected restricted __le16 [usertype] length
drivers/hid/spi-hid/spi-hid-apple-core.c:233:21: sparse: got unsigned long
drivers/hid/spi-hid/spi-hid-apple-core.c:248:20: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le16 [usertype] crc16 @@ got unsigned short @@
drivers/hid/spi-hid/spi-hid-apple-core.c:248:20: sparse: expected restricted __le16 [usertype] crc16
drivers/hid/spi-hid/spi-hid-apple-core.c:248:20: sparse: got unsigned short
drivers/hid/spi-hid/spi-hid-apple-core.c:259:21: sparse: sparse: symbol 'spihid_get_data' was not declared. Should it be static?
drivers/hid/spi-hid/spi-hid-apple-core.c:639:67: sparse: sparse: incorrect type in argument 5 (different base types) @@ expected unsigned long [usertype] len @@ got restricted __le16 [usertype] length @@
drivers/hid/spi-hid/spi-hid-apple-core.c:639:67: sparse: expected unsigned long [usertype] len
drivers/hid/spi-hid/spi-hid-apple-core.c:639:67: sparse: got restricted __le16 [usertype] length
drivers/hid/spi-hid/spi-hid-apple-core.c:643:54: sparse: sparse: incorrect type in argument 4 (different base types) @@ expected unsigned long [usertype] len @@ got restricted __le16 [usertype] length @@
drivers/hid/spi-hid/spi-hid-apple-core.c:643:54: sparse: expected unsigned long [usertype] len
drivers/hid/spi-hid/spi-hid-apple-core.c:643:54: sparse: got restricted __le16 [usertype] length
drivers/hid/spi-hid/spi-hid-apple-core.c:665:50: sparse: sparse: incorrect type in argument 6 (different base types) @@ expected unsigned long [usertype] len @@ got restricted __le16 [usertype] length @@
drivers/hid/spi-hid/spi-hid-apple-core.c:665:50: sparse: expected unsigned long [usertype] len
drivers/hid/spi-hid/spi-hid-apple-core.c:665:50: sparse: got restricted __le16 [usertype] length
drivers/hid/spi-hid/spi-hid-apple-core.c:686:16: sparse: sparse: restricted __le16 degrades to integer
drivers/hid/spi-hid/spi-hid-apple-core.c:700:43: sparse: sparse: restricted __le16 degrades to integer
drivers/hid/spi-hid/spi-hid-apple-core.c:703:23: sparse: sparse: restricted __le16 degrades to integer
drivers/hid/spi-hid/spi-hid-apple-core.c:704:24: sparse: sparse: restricted __le16 degrades to integer
drivers/hid/spi-hid/spi-hid-apple-core.c:704:47: sparse: sparse: restricted __le16 degrades to integer
drivers/hid/spi-hid/spi-hid-apple-core.c:709:17: sparse: sparse: restricted __le16 degrades to integer
>> drivers/hid/spi-hid/spi-hid-apple-core.c:709:17: sparse: sparse: incorrect type in argument 3 (different base types) @@ expected unsigned long [usertype] @@ got restricted __le16 [usertype] length @@
drivers/hid/spi-hid/spi-hid-apple-core.c:709:17: sparse: expected unsigned long [usertype]
drivers/hid/spi-hid/spi-hid-apple-core.c:709:17: sparse: got restricted __le16 [usertype] length
drivers/hid/spi-hid/spi-hid-apple-core.c:710:29: sparse: sparse: invalid assignment: +=
drivers/hid/spi-hid/spi-hid-apple-core.c:710:29: sparse: left side has type unsigned int
drivers/hid/spi-hid/spi-hid-apple-core.c:710:29: sparse: right side has type restricted __le16
drivers/hid/spi-hid/spi-hid-apple-core.c:735:23: sparse: sparse: restricted __le16 degrades to integer

vim +709 drivers/hid/spi-hid/spi-hid-apple-core.c

617
618 static void spihid_process_message(struct spihid_apple *spihid, u8 *data,
619 size_t length, u8 device, u8 flags)
620 {
621 struct device *dev = &spihid->spidev->dev;
622 struct spihid_msg_hdr *hdr;
623 bool handled = false;
624 u8 *payload;
625
626 if (!spihid_verify_msg(spihid, data, length))
627 return;
628
629 hdr = (struct spihid_msg_hdr *)data;
630
631 if (hdr->length == 0)
632 return;
633
634 payload = data + sizeof(struct spihid_msg_hdr);
635
636 switch (flags) {
637 case SPIHID_READ_PACKET:
638 handled = spihid_process_input_report(spihid, device, hdr,
639 payload, hdr->length);
640 break;
641 case SPIHID_WRITE_PACKET:
642 handled = spihid_process_response(spihid, hdr, payload,
643 hdr->length);
644 break;
645 default:
646 break;
647 }
648
649 #if defined(DEBUG) && DEBUG > 1
650 {
651 dev_dbg(dev,
652 "R msg: req:%02hhx rep:%02hhx dev:%02hhx id:%hu len:%hu\n",
653 hdr->unknown0, hdr->unknown1, hdr->unknown2, hdr->id,
654 hdr->length);
655 print_hex_dump_debug("spihid msg: ", DUMP_PREFIX_OFFSET, 16, 1,
656 payload, hdr->length, true);
657 }
658 #else
659 if (!handled) {
660 dev_dbg(dev,
661 "R unhandled msg: req:%02hhx rep:%02hhx dev:%02hhx id:%hu len:%hu\n",
662 hdr->unknown0, hdr->unknown1, hdr->unknown2, hdr->id,
663 hdr->length);
664 print_hex_dump_debug("spihid msg: ", DUMP_PREFIX_OFFSET, 16, 1,
> 665 payload, hdr->length, true);
666 }
667 #endif
668 }
669
670 static void spihid_assemble_meesage(struct spihid_apple *spihid,
671 struct spihid_transfer_packet *pkt)
672 {
673 size_t length, offset, remain;
674 struct device *dev = &spihid->spidev->dev;
675 struct spihid_input_report *rep = &spihid->report;
676
677 length = le16_to_cpu(pkt->length);
678 remain = le16_to_cpu(pkt->remain);
679 offset = le16_to_cpu(pkt->offset);
680
681 if (offset + length + remain > U16_MAX) {
682 return;
683 }
684
685 if (pkt->device != rep->device || pkt->flags != rep->flags ||
686 pkt->offset != rep->offset) {
687 rep->device = 0;
688 rep->flags = 0;
689 rep->offset = 0;
690 rep->length = 0;
691 }
692
693 if (pkt->offset == 0) {
694 if (rep->offset != 0) {
695 dev_warn(dev, "incomplete report off:%u len:%u",
696 rep->offset, rep->length);
697 }
698 memcpy(rep->buf, pkt->data, length);
699 rep->offset = length;
700 rep->length = length + pkt->remain;
701 rep->device = pkt->device;
702 rep->flags = pkt->flags;
703 } else if (pkt->offset == rep->offset) {
704 if (pkt->offset + length + pkt->remain != rep->length) {
705 dev_warn(dev, "incomplete report off:%u len:%u",
706 rep->offset, rep->length);
707 return;
708 }
> 709 memcpy(rep->buf + pkt->offset, pkt->data, pkt->length);
710 rep->offset += pkt->length;
711
712 if (rep->offset == rep->length) {
713 spihid_process_message(spihid, rep->buf, rep->length,
714 rep->device, rep->flags);
715 rep->device = 0;
716 rep->flags = 0;
717 rep->offset = 0;
718 rep->length = 0;
719 }
720 }
721 }
722

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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