[davidhildenbrand:foll_unshare 1/2] net/phonet/sysctl.c:24:8: error: field designator 'seqcount' does not refer to any field in type 'seqcount_t' (aka 'struct seqcount')
From: kernel test robot
Date: Wed Dec 08 2021 - 18:59:12 EST
tree: git://github.com/davidhildenbrand/linux foll_unshare
head: f4b54ddc31ca94dedc57a3aab1f42d348537a31b
commit: f270db76384cb1df5a7f1b67226a8c8515583e5f [1/2] seqlock: provide lockdep-free raw_seqcount_t variant
config: riscv-buildonly-randconfig-r003-20211207 (https://download.01.org/0day-ci/archive/20211209/202112090736.d9HFdWOz-lkp@xxxxxxxxx/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/davidhildenbrand/linux/commit/f270db76384cb1df5a7f1b67226a8c8515583e5f
git remote add davidhildenbrand git://github.com/davidhildenbrand/linux
git fetch --no-tags davidhildenbrand foll_unshare
git checkout f270db76384cb1df5a7f1b67226a8c8515583e5f
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash net/phonet/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
In file included from net/phonet/sysctl.c:17:
In file included from include/net/sock.h:38:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:36:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from net/phonet/sysctl.c:17:
In file included from include/net/sock.h:38:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:34:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from net/phonet/sysctl.c:17:
In file included from include/net/sock.h:38:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/riscv/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/riscv/include/asm/io.h:136:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:1024:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port;
~~~~~~~~~~ ^
>> net/phonet/sysctl.c:24:8: error: field designator 'seqcount' does not refer to any field in type 'seqcount_t' (aka 'struct seqcount')
static DEFINE_SEQLOCK(local_port_range_lock);
^
include/linux/seqlock.h:907:18: note: expanded from macro 'DEFINE_SEQLOCK'
seqlock_t sl = __SEQLOCK_UNLOCKED(sl)
^
include/linux/seqlock.h:888:15: note: expanded from macro '__SEQLOCK_UNLOCKED'
.seqcount = SEQCNT_SPINLOCK_ZERO(lockname, &(lockname).lock), \
^
include/linux/seqlock.h:358:42: note: expanded from macro 'SEQCNT_SPINLOCK_ZERO'
#define SEQCNT_SPINLOCK_ZERO(name, lock) SEQCOUNT_LOCKNAME_ZERO(name, lock)
^
include/linux/seqlock.h:353:15: note: expanded from macro 'SEQCOUNT_LOCKNAME_ZERO'
.seqcount = SEQCNT_ZERO(seq_name.seqcount), \
^
include/linux/seqlock.h:141:30: note: expanded from macro 'SEQCNT_ZERO'
#define SEQCNT_ZERO(name) { .seqcount = RAW_SEQCNT_ZERO(), SEQCOUNT_DEP_MAP_INIT(name) }
^
7 warnings and 1 error generated.
vim +24 net/phonet/sysctl.c
87ab4e20b445c6d Remi Denis-Courmont 2008-09-22 23
87ab4e20b445c6d Remi Denis-Courmont 2008-09-22 @24 static DEFINE_SEQLOCK(local_port_range_lock);
87ab4e20b445c6d Remi Denis-Courmont 2008-09-22 25 static int local_port_range_min[2] = {0, 0};
87ab4e20b445c6d Remi Denis-Courmont 2008-09-22 26 static int local_port_range_max[2] = {1023, 1023};
87ab4e20b445c6d Remi Denis-Courmont 2008-09-22 27 static int local_port_range[2] = {DYNAMIC_PORT_MIN, DYNAMIC_PORT_MAX};
87ab4e20b445c6d Remi Denis-Courmont 2008-09-22 28 static struct ctl_table_header *phonet_table_hrd;
87ab4e20b445c6d Remi Denis-Courmont 2008-09-22 29
:::::: The code at line 24 was first introduced by commit
:::::: 87ab4e20b445c6d2d2727ab4f96fa17f7259511e Phonet: proc interface for port range
:::::: TO: Remi Denis-Courmont <remi.denis-courmont@xxxxxxxxx>
:::::: CC: David S. Miller <davem@xxxxxxxxxxxxx>
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