tree: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git reserve-rt-metadata-space head: 51f17deded84ae5863d2220a0a7c152ef4a8bbb2 commit: 4d8f99e0a4197987823f6df1681efd02e87c1b2a [109/196] xfs: add a ->xchg_file_range handler config: powerpc64-randconfig-r016-20210115 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project d7bc3b7ce23b664d6620cdc32370a8614523ca2f) 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 powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/comm... git remote add djwong-xfs https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git git fetch --no-tags djwong-xfs reserve-rt-metadata-space git checkout 4d8f99e0a4197987823f6df1681efd02e87c1b2a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): arch/powerpc/include/asm/io-defs.h:47:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:61:1: note: expanded from here __do_insl ^ arch/powerpc/include/asm/io.h:558:56: note: expanded from macro '__do_insl' #define __do_insl(p, b, n) readsl((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/xfs/xfs_xchgrange.c:6: In file included from fs/xfs/xfs.h:22: In file included from fs/xfs/xfs_linux.h:31: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:49:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:63:1: note: expanded from here __do_outsb ^ arch/powerpc/include/asm/io.h:559:58: note: expanded from macro '__do_outsb' #define __do_outsb(p, b, n) writesb((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/xfs/xfs_xchgrange.c:6: In file included from fs/xfs/xfs.h:22: In file included from fs/xfs/xfs_linux.h:31: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:51:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:65:1: note: expanded from here __do_outsw ^ arch/powerpc/include/asm/io.h:560:58: note: expanded from macro '__do_outsw' #define __do_outsw(p, b, n) writesw((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/xfs/xfs_xchgrange.c:6: In file included from fs/xfs/xfs.h:22: In file included from fs/xfs/xfs_linux.h:31: In file included from include/linux/blkdev.h:14: In file included from include/linux/pagemap.h:11: In file included from include/linux/highmem.h:10: In file included from include/linux/hardirq.h:10: In file included from arch/powerpc/include/asm/hardirq.h:6: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/powerpc/include/asm/io.h:619: arch/powerpc/include/asm/io-defs.h:53:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:616:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:67:1: note: expanded from here __do_outsl ^ arch/powerpc/include/asm/io.h:561:58: note: expanded from macro '__do_outsl' #define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/xfs/xfs_xchgrange.c:16: fs/xfs/xfs_quota.h:185:39: error: incompatible pointer types passing 'struct xfs_trans **' to parameter of type 'struct xfs_trans *'; remove & [-Werror,-Wincompatible-pointer-types] return xfs_trans_reserve_quota_nblks(&tp, ip, -nblks, -ninos, flags, ^~~ fs/xfs/xfs_quota.h:141:67: note: passing argument to parameter 'tp' here static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, ^ fs/xfs/xfs_quota.h:190:1: error: redefinition of 'xfs_quota_reserve_blkres' xfs_quota_reserve_blkres(struct xfs_inode *ip, int64_t nblks, ^ fs/xfs/xfs_quota.h:154:19: note: previous definition is here static inline int xfs_quota_reserve_blkres(struct xfs_inode *ip, ^ fs/xfs/xfs_quota.h:195:39: error: incompatible pointer types passing 'struct xfs_trans **' to parameter of type 'struct xfs_trans *'; remove & [-Werror,-Wincompatible-pointer-types] return xfs_trans_reserve_quota_nblks(&tp, ip, nblks, 0, flags, NULL); ^~~ fs/xfs/xfs_quota.h:141:67: note: passing argument to parameter 'tp' here static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, ^ error = xfs_trans_reserve_quota_nblks(tpp, req->ip1, ^~~ * fs/xfs/xfs_quota.h:141:67: note: passing argument to parameter 'tp' here static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, ^ fs/xfs/xfs_xchgrange.c:146:41: error: incompatible pointer types passing 'struct xfs_trans **' to parameter of type 'struct xfs_trans *'; dereference with * [-Werror,-Wincompatible-pointer-types] error = xfs_trans_reserve_quota_nblks(tpp, req->ip2, ^~~ * fs/xfs/xfs_quota.h:141:67: note: passing argument to parameter 'tp' here static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, ^ fs/xfs/xfs_xchgrange.c:162:40: error: incompatible pointer types passing 'struct xfs_trans **' to parameter of type 'struct xfs_trans *'; dereference with * [-Werror,-Wincompatible-pointer-types] error = xfs_trans_reserve_quota_nblks(tpp, req->ip1, ip1_mapped, 0, ^~~ * fs/xfs/xfs_quota.h:141:67: note: passing argument to parameter 'tp' here static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, ^ fs/xfs/xfs_xchgrange.c:167:39: error: incompatible pointer types passing 'struct xfs_trans **' to parameter of type 'struct xfs_trans *'; dereference with * [-Werror,-Wincompatible-pointer-types] return xfs_trans_reserve_quota_nblks(tpp, req->ip2, ip2_mapped, 0, ^~~ * fs/xfs/xfs_quota.h:141:67: note: passing argument to parameter 'tp' here static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp, ^ 6 warnings and 7 errors generated. vim +136 fs/xfs/xfs_xchgrange.c 117 118 /* Make a particular type of quota reservation. */ 119 STATIC int 120 xfs_xchg_range_reserve_quota_blocks( 121 struct xfs_trans **tpp, 122 const struct xfs_swapext_req *req, 123 xfs_filblks_t ip1_mapped, 124 xfs_filblks_t ip2_mapped, 125 unsigned int qmopts, 126 bool *quota_retry) 127 { 128 int error; 129 130 /* 131 * For each file, compute the net gain in the number of blocks that 132 * will be mapped into that file and reserve that much quota. The 133 * quota counts must be able to absorb at least that much space. 134 */ 135 if (ip2_mapped > ip1_mapped) { 137 ip2_mapped - ip1_mapped, 0, 138 qmopts, quota_retry); 139 if (!(*tpp) && req->ip1 != req->ip2) 140 xfs_iunlock(req->ip2, XFS_ILOCK_EXCL); 141 if (error || *quota_retry) 142 return error; 143 } 144 145 if (ip1_mapped > ip2_mapped) { 146 error = xfs_trans_reserve_quota_nblks(tpp, req->ip2, 147 ip1_mapped - ip2_mapped, 0, 148 qmopts, quota_retry); 149 if (!(*tpp) && req->ip1 != req->ip2) 150 xfs_iunlock(req->ip1, XFS_ILOCK_EXCL); 151 if (error || *quota_retry) 152 return error; 153 } 154 155 /* 156 * For each file, forcibly reserve the gross gain in mapped blocks so 157 * that we don't trip over any quota block reservation assertions. 158 * We must reserve the gross gain because the quota code subtracts from 159 * bcount the number of blocks that we unmap; it does not add that 160 * quantity back to the quota block reservation. 161 */ 162 error = xfs_trans_reserve_quota_nblks(tpp, req->ip1, ip1_mapped, 0, 163 XFS_QMOPT_FORCE_RES | qmopts, NULL); 164 if (error) 165 return error; 166 167 return xfs_trans_reserve_quota_nblks(tpp, req->ip2, ip2_mapped, 0, 168 XFS_QMOPT_FORCE_RES | qmopts, NULL); 169 } 170 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org