[teigland-dlm:next 13/23] include/uapi/linux/byteorder/little_endian.h:32:43: warning: cast from pointer to integer of different size

From: kernel test robot
Date: Thu Apr 07 2022 - 00:18:25 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm.git next
head: dc1acd5c94699389a9ed023e94dd860c846ea1f6
commit: 2f9dbeda8dc04b5b754e032000adf6bab03aa9be [13/23] dlm: use __le types for rcom messages
config: microblaze-randconfig-r024-20220406 (https://download.01.org/0day-ci/archive/20220407/202204071256.lLGswbZA-lkp@xxxxxxxxx/config)
compiler: microblaze-linux-gcc (GCC) 11.2.0
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
# https://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm.git/commit/?id=2f9dbeda8dc04b5b754e032000adf6bab03aa9be
git remote add teigland-dlm https://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm.git
git fetch --no-tags teigland-dlm next
git checkout 2f9dbeda8dc04b5b754e032000adf6bab03aa9be
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=microblaze SHELL=/bin/bash fs/dlm/

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

All warnings (new ones prefixed by >>):

In file included from include/linux/byteorder/little_endian.h:5,
from arch/microblaze/include/uapi/asm/byteorder.h:6,
from include/asm-generic/bitops/le.h:6,
from include/asm-generic/bitops.h:35,
from ./arch/microblaze/include/generated/asm/bitops.h:1,
from include/linux/bitops.h:33,
from include/linux/log2.h:12,
from include/asm-generic/div64.h:55,
from ./arch/microblaze/include/generated/asm/div64.h:1,
from include/linux/math.h:6,
from include/linux/math64.h:6,
from include/linux/time64.h:5,
from include/linux/restart_block.h:10,
from include/linux/thread_info.h:14,
from include/asm-generic/preempt.h:5,
from ./arch/microblaze/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:55,
from include/linux/mmzone.h:8,
from include/linux/gfp.h:6,
from include/linux/slab.h:15,
from fs/dlm/dlm_internal.h:19,
from fs/dlm/rcom.c:12:
fs/dlm/rcom.c: In function 'dlm_send_rcom_lock':
>> include/uapi/linux/byteorder/little_endian.h:32:43: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
32 | #define __cpu_to_le64(x) ((__force __le64)(__u64)(x))
| ^
include/linux/byteorder/generic.h:86:21: note: in expansion of macro '__cpu_to_le64'
86 | #define cpu_to_le64 __cpu_to_le64
| ^~~~~~~~~~~~~
fs/dlm/rcom.c:457:21: note: in expansion of macro 'cpu_to_le64'
457 | rc->rc_id = cpu_to_le64(r);
| ^~~~~~~~~~~


vim +32 include/uapi/linux/byteorder/little_endian.h

5921e6f8809b16 David Howells 2012-10-13 15
5921e6f8809b16 David Howells 2012-10-13 16 #define __constant_htonl(x) ((__force __be32)___constant_swab32((x)))
5921e6f8809b16 David Howells 2012-10-13 17 #define __constant_ntohl(x) ___constant_swab32((__force __be32)(x))
5921e6f8809b16 David Howells 2012-10-13 18 #define __constant_htons(x) ((__force __be16)___constant_swab16((x)))
5921e6f8809b16 David Howells 2012-10-13 19 #define __constant_ntohs(x) ___constant_swab16((__force __be16)(x))
5921e6f8809b16 David Howells 2012-10-13 20 #define __constant_cpu_to_le64(x) ((__force __le64)(__u64)(x))
5921e6f8809b16 David Howells 2012-10-13 21 #define __constant_le64_to_cpu(x) ((__force __u64)(__le64)(x))
5921e6f8809b16 David Howells 2012-10-13 22 #define __constant_cpu_to_le32(x) ((__force __le32)(__u32)(x))
5921e6f8809b16 David Howells 2012-10-13 23 #define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x))
5921e6f8809b16 David Howells 2012-10-13 24 #define __constant_cpu_to_le16(x) ((__force __le16)(__u16)(x))
5921e6f8809b16 David Howells 2012-10-13 25 #define __constant_le16_to_cpu(x) ((__force __u16)(__le16)(x))
5921e6f8809b16 David Howells 2012-10-13 26 #define __constant_cpu_to_be64(x) ((__force __be64)___constant_swab64((x)))
5921e6f8809b16 David Howells 2012-10-13 27 #define __constant_be64_to_cpu(x) ___constant_swab64((__force __u64)(__be64)(x))
5921e6f8809b16 David Howells 2012-10-13 28 #define __constant_cpu_to_be32(x) ((__force __be32)___constant_swab32((x)))
5921e6f8809b16 David Howells 2012-10-13 29 #define __constant_be32_to_cpu(x) ___constant_swab32((__force __u32)(__be32)(x))
5921e6f8809b16 David Howells 2012-10-13 30 #define __constant_cpu_to_be16(x) ((__force __be16)___constant_swab16((x)))
5921e6f8809b16 David Howells 2012-10-13 31 #define __constant_be16_to_cpu(x) ___constant_swab16((__force __u16)(__be16)(x))
5921e6f8809b16 David Howells 2012-10-13 @32 #define __cpu_to_le64(x) ((__force __le64)(__u64)(x))
5921e6f8809b16 David Howells 2012-10-13 33 #define __le64_to_cpu(x) ((__force __u64)(__le64)(x))
5921e6f8809b16 David Howells 2012-10-13 34 #define __cpu_to_le32(x) ((__force __le32)(__u32)(x))
5921e6f8809b16 David Howells 2012-10-13 35 #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
5921e6f8809b16 David Howells 2012-10-13 36 #define __cpu_to_le16(x) ((__force __le16)(__u16)(x))
5921e6f8809b16 David Howells 2012-10-13 37 #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
5921e6f8809b16 David Howells 2012-10-13 38 #define __cpu_to_be64(x) ((__force __be64)__swab64((x)))
5921e6f8809b16 David Howells 2012-10-13 39 #define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x))
5921e6f8809b16 David Howells 2012-10-13 40 #define __cpu_to_be32(x) ((__force __be32)__swab32((x)))
5921e6f8809b16 David Howells 2012-10-13 41 #define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x))
5921e6f8809b16 David Howells 2012-10-13 42 #define __cpu_to_be16(x) ((__force __be16)__swab16((x)))
5921e6f8809b16 David Howells 2012-10-13 43 #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x))
5921e6f8809b16 David Howells 2012-10-13 44

:::::: The code at line 32 was first introduced by commit
:::::: 5921e6f8809b1616932ca4afd40fe449faa8fd88 UAPI: (Scripted) Disintegrate include/linux/byteorder

:::::: TO: David Howells <dhowells@xxxxxxxxxx>
:::::: CC: David Howells <dhowells@xxxxxxxxxx>

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https://01.org/lkp