Re: [PATCH v4 1/1] vringh: IOMEM support

From: kernel test robot
Date: Fri Jun 02 2023 - 22:51:25 EST

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Hi Shunsuke,

kernel test robot noticed the following build warnings:

[auto build test WARNING on mst-vhost/linux-next]
[also build test WARNING on linus/master horms-ipvs/master v6.4-rc4 next-20230602]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Shunsuke-Mie/vringh-IOMEM-support/20230602-135351
base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
patch link: https://lore.kernel.org/r/20230602055211.309960-2-mie%40igel.co.jp
patch subject: [PATCH v4 1/1] vringh: IOMEM support
config: nios2-randconfig-s053-20230531 (https://download.01.org/0day-ci/archive/20230603/202306031019.wWKekRGz-lkp@xxxxxxxxx/config)
compiler: nios2-linux-gcc (GCC) 12.3.0
reproduce:
mkdir -p ~/bin
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/intel-lab-lkp/linux/commit/de2a1f5220c32e953400f225aba6bd294a8d41b8
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Shunsuke-Mie/vringh-IOMEM-support/20230602-135351
git checkout de2a1f5220c32e953400f225aba6bd294a8d41b8
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=nios2 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=nios2 SHELL=/bin/bash drivers/vhost/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306031019.wWKekRGz-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/vhost/vringh.c:1630:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got struct vring_used_elem *dst @@
drivers/vhost/vringh.c:1630:21: sparse: expected void volatile [noderef] __iomem *addr
drivers/vhost/vringh.c:1630:21: sparse: got struct vring_used_elem *dst
drivers/vhost/vringh.c:592:18: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vringh.c:592:18: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vringh.c:592:18: sparse: sparse: cast to restricted __virtio16
drivers/vhost/vringh.c:1280:23: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vringh.c:1280:23: sparse: sparse: restricted __virtio16 degrades to integer
drivers/vhost/vringh.c:1280:23: sparse: sparse: cast to restricted __virtio16
>> drivers/vhost/vringh.c:1610:46: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got restricted __virtio16 const [usertype] *p @@
drivers/vhost/vringh.c:1610:46: sparse: expected void const volatile [noderef] __iomem *addr
drivers/vhost/vringh.c:1610:46: sparse: got restricted __virtio16 const [usertype] *p
>> drivers/vhost/vringh.c:1610:45: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __virtio16 [usertype] val @@ got unsigned short @@
drivers/vhost/vringh.c:1610:45: sparse: expected restricted __virtio16 [usertype] val
drivers/vhost/vringh.c:1610:45: sparse: got unsigned short
>> drivers/vhost/vringh.c:1623:28: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void const *src @@
drivers/vhost/vringh.c:1623:28: sparse: expected void const volatile [noderef] __iomem *addr
drivers/vhost/vringh.c:1623:28: sparse: got void const *src
>> drivers/vhost/vringh.c:1637:28: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void *src @@
drivers/vhost/vringh.c:1637:28: sparse: expected void const volatile [noderef] __iomem *addr
drivers/vhost/vringh.c:1637:28: sparse: got void *src
>> drivers/vhost/vringh.c:1644:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *dst @@
drivers/vhost/vringh.c:1644:21: sparse: expected void volatile [noderef] __iomem *addr
drivers/vhost/vringh.c:1644:21: sparse: got void *dst
>> drivers/vhost/vringh.c:1616:34: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned short [usertype] value @@ got restricted __virtio16 @@
drivers/vhost/vringh.c:1616:34: sparse: expected unsigned short [usertype] value
drivers/vhost/vringh.c:1616:34: sparse: got restricted __virtio16
>> drivers/vhost/vringh.c:1616:46: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got restricted __virtio16 [usertype] *p @@
drivers/vhost/vringh.c:1616:46: sparse: expected void volatile [noderef] __iomem *addr
drivers/vhost/vringh.c:1616:46: sparse: got restricted __virtio16 [usertype] *p
drivers/vhost/vringh.c: note: in included file (through include/uapi/linux/swab.h, include/linux/swab.h, include/uapi/linux/byteorder/little_endian.h, ...):
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:31:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini
arch/nios2/include/uapi/asm/swab.h:25:24: sparse: sparse: too many arguments for function __builtin_custom_ini

vim +1630 drivers/vhost/vringh.c

1606
1607 static inline int getu16_iomem(const struct vringh *vrh, u16 *val,
1608 const __virtio16 *p)
1609 {
> 1610 *val = vringh16_to_cpu(vrh, ioread16(p));
1611 return 0;
1612 }
1613
1614 static inline int putu16_iomem(const struct vringh *vrh, __virtio16 *p, u16 val)
1615 {
> 1616 iowrite16(cpu_to_vringh16(vrh, val), p);
1617 return 0;
1618 }
1619
1620 static inline int copydesc_iomem(const struct vringh *vrh, void *dst,
1621 const void *src, size_t len)
1622 {
> 1623 memcpy_fromio(dst, src, len);
1624 return 0;
1625 }
1626
1627 static int putused_iomem(const struct vringh *vrh, struct vring_used_elem *dst,
1628 const struct vring_used_elem *src, unsigned int num)
1629 {
> 1630 memcpy_toio(dst, src, num * sizeof(*dst));
1631 return 0;
1632 }
1633
1634 static inline int xfer_from_iomem(const struct vringh *vrh, void *src,
1635 void *dst, size_t len)
1636 {
> 1637 memcpy_fromio(dst, src, len);
1638 return 0;
1639 }
1640
1641 static inline int xfer_to_iomem(const struct vringh *vrh, void *dst, void *src,
1642 size_t len)
1643 {
> 1644 memcpy_toio(dst, src, len);
1645 return 0;
1646 }
1647

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https://github.com/intel/lkp-tests/wiki

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Previous message: Jianmin Lv: "Re: [PATCH pci] PCI: don't skip probing entire device if first fn OF node has status = "disabled""
In reply to: kernel test robot: "Re: [PATCH v4 1/1] vringh: IOMEM support"
Next in thread: Simon Horman: "Re: [PATCH v4 1/1] vringh: IOMEM support"
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