[hch-misc:blkdev_get-cleanups 8/14] drivers/s390/block/dasd_genhd.c:108:10: warning: format specifies type 'long' but the argument has type 'bool' (aka '_Bool')
11:35 a.m.
tree: git://git.infradead.org/users/hch/misc.git blkdev_get-cleanups
head: 55dac63d56fe4cf5e47acc2fa99ac6213d6c96c1
commit: 2acfd13168491a99627a7452856a49c851a3e165 [8/14] dasd: cleanup
dasd_scan_partitions
config: s390-randconfig-r004-20200917 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
0ff28fa6a75617d61b1aeea77463d6a1684c3c89)
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
git checkout 2acfd13168491a99627a7452856a49c851a3e165
# 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(a)intel.com>
All warnings (new ones prefixed by >>):
include/uapi/linux/swab.h:19:12: note: expanded from macro
'___constant_swab32'
(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
^
In file included from drivers/s390/block/dasd_genhd.c:25:
In file included from drivers/s390/block/dasd_int.h:49:
In file included from include/linux/blkdev.h:25:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:72:
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/s390/block/dasd_genhd.c:25:
In file included from drivers/s390/block/dasd_int.h:49:
In file included from include/linux/blkdev.h:25:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:72:
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/s390/block/dasd_genhd.c:25:
In file included from drivers/s390/block/dasd_int.h:49:
In file included from include/linux/blkdev.h:25:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:72:
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/s390/block/dasd_genhd.c:25:
In file included from drivers/s390/block/dasd_int.h:49:
In file included from include/linux/blkdev.h:25:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:72:
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/s390/block/dasd_genhd.c:25:
In file included from drivers/s390/block/dasd_int.h:49:
In file included from include/linux/blkdev.h:25:
In file included from include/linux/scatterlist.h:9:
In file included from arch/s390/include/asm/io.h:72:
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/s390/block/dasd_genhd.c:108:10: warning: format specifies
type 'long' but the argument has type 'bool' (aka '_Bool')
[-Wformat]
IS_ERR(bdev));
^~~~~~~~~~~~
drivers/s390/block/dasd_int.h:96:8: note: expanded from macro 'DBF_DEV_EVENT'
d_data); \
^~~~~~
arch/s390/include/asm/debug.h:256:21: note: expanded from macro
'debug_sprintf_event'
_fmt, ## __VA_ARGS__); \
~~~~ ^~~~~~~~~~~
21 warnings generated.
git remote add hch-misc git://git.infradead.org/users/hch/misc.git
git fetch --no-tags hch-misc blkdev_get-cleanups
git checkout 2acfd13168491a99627a7452856a49c851a3e165
vim +108 drivers/s390/block/dasd_genhd.c
95
96 /*
97 * Trigger a partition detection.
98 */
99 int dasd_scan_partitions(struct dasd_block *block)
100 {
101 struct block_device *bdev;
102 int rc;
103
104 bdev = blkdev_get_by_dev(disk_devt(block->gdp), FMODE_READ, NULL);
105 if (IS_ERR(bdev)) {
106 DBF_DEV_EVENT(DBF_ERR, block->base,
107 "scan partitions error, blkdev_get returned %ld",
108 IS_ERR(bdev));
109 return -ENODEV;
110 }
111
112 mutex_lock(&bdev->bd_mutex);
113 rc = bdev_disk_changed(bdev, false);
114 mutex_unlock(&bdev->bd_mutex);
115 if (rc)
116 DBF_DEV_EVENT(DBF_ERR, block->base,
117 "scan partitions error, rc %d", rc);
118
119 /*
120 * Since the matching blkdev_put call to the blkdev_get in
121 * this function is not called before dasd_destroy_partitions
122 * the offline open_count limit needs to be increased from
123 * 0 to 1. This is done by setting device->bdev (see
124 * dasd_generic_set_offline). As long as the partition
125 * detection is running no offline should be allowed. That
126 * is why the assignment to device->bdev is done AFTER
127 * the BLKRRPART ioctl.
128 */
129 block->bdev = bdev;
130 return 0;
131 }
132
---
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