[xlnx:xlnx_rebase_v5.10 813/1761] drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1141:3: warning: comparison of distinct pointer types ('unsigned long *' and 'typeof (flags) *' (aka 'unsigned int *'))
kernel test robot
lkp at intel.com
Fri Aug 13 04:33:26 PDT 2021
tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10
head: e14d4574ca81a569ee6d07e03271f2ae2dad38e4
commit: 1b5d1c43433b3ec5407db48688e717285e7edafe [813/1761] net: xilinx: axiethernet: Add check for transmit data FIFO vacancy
config: s390-randconfig-r012-20210812 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 767496d19cb9a1fbba57ff08095faa161998ee36)
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 s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/Xilinx/linux-xlnx/commit/1b5d1c43433b3ec5407db48688e717285e7edafe
git remote add xlnx https://github.com/Xilinx/linux-xlnx
git fetch --no-tags xlnx xlnx_rebase_v5.10
git checkout 1b5d1c43433b3ec5407db48688e717285e7edafe
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
All warnings (new ones prefixed by >>):
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/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : \
^
include/uapi/linux/swab.h:20:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
^
In file included from drivers/net/ethernet/xilinx/xilinx_axienet_main.c:28:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:80:
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/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : \
^
include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
^
In file included from drivers/net/ethernet/xilinx/xilinx_axienet_main.c:28:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:80:
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/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : \
^
include/uapi/linux/swab.h:22:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
^
In file included from drivers/net/ethernet/xilinx/xilinx_axienet_main.c:28:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:80:
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/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32'
__fswab32(x))
^
In file included from drivers/net/ethernet/xilinx/xilinx_axienet_main.c:28:
In file included from include/linux/etherdevice.h:20:
In file included from include/linux/if_ether.h:19:
In file included from include/linux/skbuff.h:31:
In file included from include/linux/dma-mapping.h:10:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:80:
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:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1141:3: warning: comparison of distinct pointer types ('unsigned long *' and 'typeof (flags) *' (aka 'unsigned int *')) [-Wcompare-distinct-pointer-types]
spin_lock_irqsave(&lp->ptp_tx_lock, flags);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/spinlock.h:384:2: note: expanded from macro 'spin_lock_irqsave'
raw_spin_lock_irqsave(spinlock_check(lock), flags); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/spinlock.h:251:3: note: expanded from macro 'raw_spin_lock_irqsave'
typecheck(unsigned long, flags); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/typecheck.h:12:18: note: expanded from macro 'typecheck'
(void)(&__dummy == &__dummy2); \
~~~~~~~~ ^ ~~~~~~~~~
drivers/net/ethernet/xilinx/xilinx_axienet_main.c:702:12: warning: unused function 'axienet_free_tx_chain' [-Wunused-function]
static int axienet_free_tx_chain(struct net_device *ndev, u32 first_bd,
^
In file included from drivers/net/ethernet/xilinx/xilinx_axienet_main.c:25:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
arch/s390/include/asm/bitops.h:90:4: error: invalid operand in inline asm: 'ni $0,${1:b}'
"ni %0,%b1\n"
^
arch/s390/include/asm/bitops.h:90:4: error: invalid operand in inline asm: 'ni $0,${1:b}'
arch/s390/include/asm/bitops.h:90:4: error: invalid operand in inline asm: 'ni $0,${1:b}'
arch/s390/include/asm/bitops.h:69:4: error: invalid operand in inline asm: 'oi $0,${1:b}'
"oi %0,%b1\n"
^
arch/s390/include/asm/bitops.h:69:4: error: invalid operand in inline asm: 'oi $0,${1:b}'
22 warnings and 5 errors generated.
vim +1141 drivers/net/ethernet/xilinx/xilinx_axienet_main.c
1118
1119 if (msg_type == TX_TS_OP_NOOP) {
1120 buf[0] = TX_TS_OP_NOOP;
1121 } else if (msg_type == TX_TS_OP_ONESTEP) {
1122 buf[0] = TX_TS_OP_ONESTEP;
1123 buf[1] = TX_TS_CSUM_UPDATE;
1124 buf[4] = TX_PTP_TS_OFFSET;
1125 buf[6] = TX_PTP_CSUM_OFFSET;
1126 } else {
1127 buf[0] = TX_TS_OP_TWOSTEP;
1128 buf[2] = cur_p->ptp_tx_ts_tag & 0xFF;
1129 buf[3] = (cur_p->ptp_tx_ts_tag >> 8) & 0xFF;
1130 }
1131
1132 if (lp->axienet_config->mactype == XAXIENET_1G ||
1133 lp->axienet_config->mactype == XAXIENET_2_5G) {
1134 memcpy(&val, buf, AXIENET_TS_HEADER_LEN);
1135 swab64s(&val);
1136 memcpy(buf, &val, AXIENET_TS_HEADER_LEN);
1137 } else if (lp->axienet_config->mactype == XAXIENET_10G_25G ||
1138 lp->axienet_config->mactype == XAXIENET_MRMAC) {
1139 memcpy(&tmp, buf, XXVENET_TS_HEADER_LEN);
1140 /* Check for Transmit Data FIFO Vacancy */
> 1141 spin_lock_irqsave(&lp->ptp_tx_lock, flags);
1142 if (!axienet_txts_ior(lp, XAXIFIFO_TXTS_TDFV)) {
1143 spin_unlock_irqrestore(&lp->ptp_tx_lock, flags);
1144 return NETDEV_TX_BUSY;
1145 }
1146 axienet_txts_iow(lp, XAXIFIFO_TXTS_TXFD, tmp);
1147 axienet_txts_iow(lp, XAXIFIFO_TXTS_TLR,
1148 XXVENET_TS_HEADER_LEN);
1149 spin_unlock_irqrestore(&lp->ptp_tx_lock, flags);
1150 }
1151
1152 return 0;
1153 }
1154 #endif
1155
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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