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Date: Fri, 9 Dec 2022 23:59:56 +0800
From: kernel test robot <lkp@...el.com>
To: Stafford Horne <shorne@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to
restricted __le64
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0d1409e4ff08aa4a9a254d3f723410db32aa7552
commit: ded2ee36313c941f1a12b6f85cde295b575264ae openrisc: Add pci bus support
date: 4 months ago
config: openrisc-randconfig-s053-20221209
compiler: or1k-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ded2ee36313c941f1a12b6f85cde295b575264ae
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout ded2ee36313c941f1a12b6f85cde295b575264ae
# 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=openrisc SHELL=/bin/bash drivers/staging/vt6655/
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/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
>> drivers/staging/vt6655/card.c:758:16: sparse: sparse: cast to restricted __le64
vim +758 drivers/staging/vt6655/card.c
5449c685a4b395 Forest Bond 2009-04-25 728
5449c685a4b395 Forest Bond 2009-04-25 729 /*
5449c685a4b395 Forest Bond 2009-04-25 730 * Description: Read NIC TSF counter
5449c685a4b395 Forest Bond 2009-04-25 731 * Get local TSF counter
5449c685a4b395 Forest Bond 2009-04-25 732 *
5449c685a4b395 Forest Bond 2009-04-25 733 * Parameters:
5449c685a4b395 Forest Bond 2009-04-25 734 * In:
919612444272c0 Malcolm Priestley 2015-10-17 735 * priv - The adapter to be read
5449c685a4b395 Forest Bond 2009-04-25 736 * Out:
5449c685a4b395 Forest Bond 2009-04-25 737 * qwCurrTSF - Current TSF counter
5449c685a4b395 Forest Bond 2009-04-25 738 *
5a5a2a6ad4aa24 Charles Clément 2010-08-01 739 * Return Value: true if success; otherwise false
5449c685a4b395 Forest Bond 2009-04-25 740 */
60a16985171c4e Philipp Hortmann 2022-05-01 741 u64 vt6655_get_current_tsf(struct vnt_private *priv)
5449c685a4b395 Forest Bond 2009-04-25 742 {
1977dcf07bddf7 Tommaso Merciai 2021-10-05 743 void __iomem *iobase = priv->port_offset;
2986db5fd31e31 Charles Clément 2010-06-24 744 unsigned short ww;
eb3bdf59803905 Tommaso Merciai 2021-11-06 745 unsigned char data;
79ffde57deb8e3 Philipp Hortmann 2022-05-01 746 u32 low, high;
5449c685a4b395 Forest Bond 2009-04-25 747
26f64a6ba14994 Varsha Rao 2016-10-15 748 MACvRegBitsOn(iobase, MAC_REG_TFTCTL, TFTCTL_TSFCNTRRD);
5449c685a4b395 Forest Bond 2009-04-25 749 for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
08bea7da71b34c Philipp Hortmann 2022-04-16 750 data = ioread8(iobase + MAC_REG_TFTCTL);
eb3bdf59803905 Tommaso Merciai 2021-11-06 751 if (!(data & TFTCTL_TSFCNTRRD))
5449c685a4b395 Forest Bond 2009-04-25 752 break;
5449c685a4b395 Forest Bond 2009-04-25 753 }
5449c685a4b395 Forest Bond 2009-04-25 754 if (ww == W_MAX_TIMEOUT)
60a16985171c4e Philipp Hortmann 2022-05-01 755 return 0;
79ffde57deb8e3 Philipp Hortmann 2022-05-01 756 low = ioread32(iobase + MAC_REG_TSFCNTR);
79ffde57deb8e3 Philipp Hortmann 2022-05-01 757 high = ioread32(iobase + MAC_REG_TSFCNTR + 4);
60a16985171c4e Philipp Hortmann 2022-05-01 @758 return le64_to_cpu(low + ((u64)high << 32));
5449c685a4b395 Forest Bond 2009-04-25 759 }
5449c685a4b395 Forest Bond 2009-04-25 760
:::::: The code at line 758 was first introduced by commit
:::::: 60a16985171c4e53e98facf40dfe035f7e34fc83 staging: vt6655: Replace unused return value of vt6655_get_current_tsf
:::::: TO: Philipp Hortmann <philipp.g.hortmann@...il.com>
:::::: CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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