drivers/firmware/dmi_scan.c:151:9: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Sat Jul 24 2021 - 10:33:08 EST

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Hi Stephen,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f0fddcec6b6254b4b3611388786bbafb703ad257
commit: 1062fc45d1e93faefb93961f3be0a687f3f0e2e1 MIPS: Loongson64: Select SMP in Kconfig to avoid build error
date: 10 months ago
config: mips-randconfig-s031-20210724 (attached as .config)
compiler: mips64-linux-gcc (GCC) 10.3.0
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: v0.6.3-341-g8af24329-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1062fc45d1e93faefb93961f3be0a687f3f0e2e1
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 1062fc45d1e93faefb93961f3be0a687f3f0e2e1
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=mips

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)
command-line: note: in included file:
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
builtin:0:0: sparse: this was the original definition
drivers/firmware/dmi_scan.c:143:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned char [usertype] *buf @@ got void [noderef] __iomem * @@
drivers/firmware/dmi_scan.c:143:13: sparse: expected unsigned char [usertype] *buf
drivers/firmware/dmi_scan.c:143:13: sparse: got void [noderef] __iomem *
>> drivers/firmware/dmi_scan.c:151:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned char [usertype] *buf @@
drivers/firmware/dmi_scan.c:151:9: sparse: expected void const volatile [noderef] __iomem *addr
drivers/firmware/dmi_scan.c:151:9: sparse: got unsigned char [usertype] *buf
drivers/firmware/dmi_scan.c:775:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned char [usertype] *dmi_table @@ got void [noderef] __iomem * @@
drivers/firmware/dmi_scan.c:775:19: sparse: expected unsigned char [usertype] *dmi_table
drivers/firmware/dmi_scan.c:775:19: sparse: got void [noderef] __iomem *
>> drivers/firmware/dmi_scan.c:794:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned char [usertype] *dmi_table @@
drivers/firmware/dmi_scan.c:794:9: sparse: expected void const volatile [noderef] __iomem *addr
drivers/firmware/dmi_scan.c:794:9: sparse: got unsigned char [usertype] *dmi_table
drivers/firmware/dmi_scan.c:1108:13: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned char [usertype] *buf @@ got void [noderef] __iomem * @@
drivers/firmware/dmi_scan.c:1108:13: sparse: expected unsigned char [usertype] *buf
drivers/firmware/dmi_scan.c:1108:13: sparse: got void [noderef] __iomem *
drivers/firmware/dmi_scan.c:1114:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned char [usertype] *buf @@
drivers/firmware/dmi_scan.c:1114:9: sparse: expected void const volatile [noderef] __iomem *addr
drivers/firmware/dmi_scan.c:1114:9: sparse: got unsigned char [usertype] *buf
--
command-line: note: in included file:
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
builtin:0:0: sparse: this was the original definition
>> drivers/irqchip/irq-loongson-htpic.c:80:20: sparse: sparse: symbol 'htpic_syscore_ops' was not declared. Should it be static?
drivers/irqchip/irq-loongson-htpic.c:84:12: sparse: sparse: symbol 'htpic_of_init' was not declared. Should it be static?
--
command-line: note: in included file:
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
builtin:0:0: sparse: this was the original definition
builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
builtin:0:0: sparse: this was the original definition
drivers/pci/controller/pci-ftpci100.c:37:9: sparse: sparse: preprocessor token PCI_IOSIZE redefined
drivers/pci/controller/pci-ftpci100.c: note: in included file (through arch/mips/include/asm/addrspace.h, arch/mips/include/asm/barrier.h, arch/mips/include/asm/bitops.h, ...):
>> arch/mips/include/asm/mach-loongson64/spaces.h:11:9: sparse: this was the original definition

vim +151 drivers/firmware/dmi_scan.c

7fce084a0b3e2b drivers/firmware/dmi_scan.c Jean Delvare 2007-11-03 136
e7a19c5624c66a drivers/firmware/dmi_scan.c Jean Delvare 2009-03-30 137 static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
e7a19c5624c66a drivers/firmware/dmi_scan.c Jean Delvare 2009-03-30 138 void *))
7fce084a0b3e2b drivers/firmware/dmi_scan.c Jean Delvare 2007-11-03 139 {
7fce084a0b3e2b drivers/firmware/dmi_scan.c Jean Delvare 2007-11-03 140 u8 *buf;
6e0ad59e3d838a drivers/firmware/dmi_scan.c Jean Delvare 2015-06-25 141 u32 orig_dmi_len = dmi_len;
7fce084a0b3e2b drivers/firmware/dmi_scan.c Jean Delvare 2007-11-03 142
6e0ad59e3d838a drivers/firmware/dmi_scan.c Jean Delvare 2015-06-25 143 buf = dmi_early_remap(dmi_base, orig_dmi_len);
7fce084a0b3e2b drivers/firmware/dmi_scan.c Jean Delvare 2007-11-03 144 if (buf == NULL)
c926820085437a drivers/firmware/dmi_scan.c Andy Lutomirski 2017-06-15 145 return -ENOMEM;
7fce084a0b3e2b drivers/firmware/dmi_scan.c Jean Delvare 2007-11-03 146
eb4c5ea50e60aa drivers/firmware/dmi_scan.c Ivan Khoronzhuk 2015-06-25 147 dmi_decode_table(buf, decode, NULL);
7fce084a0b3e2b drivers/firmware/dmi_scan.c Jean Delvare 2007-11-03 148
d114a333874725 drivers/firmware/dmi_scan.c Tony Luck 2012-07-20 149 add_device_randomness(buf, dmi_len);
d114a333874725 drivers/firmware/dmi_scan.c Tony Luck 2012-07-20 150
6e0ad59e3d838a drivers/firmware/dmi_scan.c Jean Delvare 2015-06-25 @151 dmi_early_unmap(buf, orig_dmi_len);
^1da177e4c3f41 arch/i386/kernel/dmi_scan.c Linus Torvalds 2005-04-16 152 return 0;
^1da177e4c3f41 arch/i386/kernel/dmi_scan.c Linus Torvalds 2005-04-16 153 }
^1da177e4c3f41 arch/i386/kernel/dmi_scan.c Linus Torvalds 2005-04-16 154

:::::: The code at line 151 was first introduced by commit
:::::: 6e0ad59e3d838a2887e7aa657baee5896030d009 firmware: dmi_scan: Trim DMI table length before exporting it

:::::: TO: Jean Delvare <jdelvare@xxxxxxx>
:::::: CC: Jean Delvare <jdelvare@xxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
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