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Date: Wed, 6 Jul 2022 21:56:49 +0800
From: kernel test robot <lkp@...el.com>
To: Janne Grunau <j@...nau.net>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Hector Martin <marcan@...can.st>
Subject: [asahilinux:bits/090-spi-hid 11/11]
drivers/hid/spi-hid/spi-hid-apple-core.c:709:17: sparse: sparse: cast from
restricted __le16
tree: https://github.com/AsahiLinux/linux bits/090-spi-hid
head: 42af7072aa3351c9a5716b754babb8ded16874ab
commit: 42af7072aa3351c9a5716b754babb8ded16874ab [11/11] WIP: HID: transport: spi: add Apple SPI transport
config: powerpc-randconfig-s031-20220706 (https://download.01.org/0day-ci/archive/20220706/202207062145.V55bHrHO-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 11.3.0
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/42af7072aa3351c9a5716b754babb8ded16874ab
git remote add asahilinux https://github.com/AsahiLinux/linux
git fetch --no-tags asahilinux bits/090-spi-hid
git checkout 42af7072aa3351c9a5716b754babb8ded16874ab
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/hid/spi-hid/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.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 int @@
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 int
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 int [usertype] len @@ got restricted __le16 [usertype] length @@
drivers/hid/spi-hid/spi-hid-apple-core.c:639:67: sparse: expected unsigned int [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 int [usertype] len @@ got restricted __le16 [usertype] length @@
drivers/hid/spi-hid/spi-hid-apple-core.c:643:54: sparse: expected unsigned int [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 int [usertype] len @@ got restricted __le16 [usertype] length @@
drivers/hid/spi-hid/spi-hid-apple-core.c:665:50: sparse: expected unsigned int [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: cast from restricted __le16
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: 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: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
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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