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X-IronPort-AV: E=McAfee;i="6500,9779,10641"; a="334562376" X-IronPort-AV: E=Sophos;i="5.98,241,1673942400"; d="scan'208";a="334562376" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Mar 2023 05:25:12 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10641"; a="765639366" X-IronPort-AV: E=Sophos;i="5.98,241,1673942400"; d="scan'208";a="765639366" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by FMSMGA003.fm.intel.com with ESMTP; 07 Mar 2023 05:25:07 -0800 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pZXJS-0001Lr-2s; Tue, 07 Mar 2023 13:25:06 +0000 Date: Tue, 7 Mar 2023 21:24:38 +0800 From: kernel test robot To: Al Viro Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Ammar Faizi , GNU/Weeb Mailing List Subject: [ammarfaizi2-block:viro/vfs/work.fd 7/8] kernel/cgroup/cgroup.c:6861:4: error: assigning to 'struct fd *' from incompatible type 'struct fd' Message-ID: <202303072147.0eID82fX-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline List-Id: tree: https://github.com/ammarfaizi2/linux-block viro/vfs/work.fd head: 792be394ebd3f30e973319f4a8019c294ca02ce2 commit: 96416baecdcc05aa7bfe16986dd9955e613ed808 [7/8] cgroup_get_from_fd(): switch to fdget_raw() config: s390-randconfig-r034-20230305 (https://download.01.org/0day-ci/archive/20230307/202303072147.0eID82fX-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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/ammarfaizi2/linux-block/commit/96416baecdcc05aa7bfe16986dd9955e613ed808 git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block viro/vfs/work.fd git checkout 96416baecdcc05aa7bfe16986dd9955e613ed808 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash kernel/cgroup/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202303072147.0eID82fX-lkp@intel.com/ All errors (new ones prefixed by >>): In file included from kernel/cgroup/cgroup.c:33: In file included from include/linux/bpf-cgroup.h:11: In file included from include/net/sock.h:46: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:28: 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:75: include/asm-generic/io.h:547:31: 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:560:61: 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/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from kernel/cgroup/cgroup.c:33: In file included from include/linux/bpf-cgroup.h:11: In file included from include/net/sock.h:46: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:28: 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:75: include/asm-generic/io.h:573:61: 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:35:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from kernel/cgroup/cgroup.c:33: In file included from include/linux/bpf-cgroup.h:11: In file included from include/net/sock.h:46: In file included from include/linux/netdevice.h:38: In file included from include/net/net_namespace.h:43: In file included from include/linux/skbuff.h:28: 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:75: include/asm-generic/io.h:584:33: 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:594:59: 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:604:59: 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:692:20: 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:700:20: 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:708:20: 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:717:21: 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:726:21: 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:735:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ >> kernel/cgroup/cgroup.c:6861:4: error: assigning to 'struct fd *' from incompatible type 'struct fd' f = fdget_raw(fd); ^ ~~~~~~~~~~~~~ >> kernel/cgroup/cgroup.c:6862:8: error: member reference type 'struct fd *' is a pointer; did you mean to use '->'? if (!f.file) ~^ -> kernel/cgroup/cgroup.c:6865:36: error: member reference type 'struct fd *' is a pointer; did you mean to use '->'? cgrp = cgroup_v1v2_get_from_file(f.file); ~^ -> >> kernel/cgroup/cgroup.c:6866:8: error: passing 'struct fd *' to parameter of incompatible type 'struct fd'; dereference with * fdput(f); ^ * include/linux/file.h:42:36: note: passing argument to parameter 'fd' here static inline void fdput(struct fd fd) ^ 12 warnings and 4 errors generated. vim +6861 kernel/cgroup/cgroup.c 6846 6847 /** 6848 * cgroup_v1v2_get_from_fd - get a cgroup pointer from a fd 6849 * @fd: fd obtained by open(cgroup_dir) 6850 * 6851 * Find the cgroup from a fd which should be obtained 6852 * by opening a cgroup directory. Returns a pointer to the 6853 * cgroup on success. ERR_PTR is returned if the cgroup 6854 * cannot be found. 6855 */ 6856 struct cgroup *cgroup_v1v2_get_from_fd(int fd) 6857 { 6858 struct cgroup *cgrp; 6859 struct fd *f; 6860 > 6861 f = fdget_raw(fd); > 6862 if (!f.file) 6863 return ERR_PTR(-EBADF); 6864 6865 cgrp = cgroup_v1v2_get_from_file(f.file); > 6866 fdput(f); 6867 return cgrp; 6868 } 6869 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests