tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f6e1ea19649216156576aeafa784e3b4cee45549 commit: c6cc4c5a72505a0ecefc9b413f16bec512f38078 cifs: handle -EINTR in cifs_setattr date: 3 months ago config: powerpc-randconfig-r036-20210101 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 6b316febb4388764789677f81f03aff373ec35b2) 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 powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c6cc4c5a72505a0ecefc9b413f16bec512f38078 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout c6cc4c5a72505a0ecefc9b413f16bec512f38078 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): In file included from fs/cifs/inode.c:24: 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:604: arch/powerpc/include/asm/io-defs.h:45:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:116:1: note: expanded from here __do_insw ^ arch/powerpc/include/asm/io.h:542:56: note: expanded from macro '__do_insw' #define __do_insw(p, b, n) readsw((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) ~~~~~~~~~~~~~~~~~~~~~^ In file included from fs/cifs/inode.c:24: 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:604: 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:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:118:1: note: expanded from here __do_insl ^ arch/powerpc/include/asm/io.h:543:56: 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/cifs/inode.c:24: 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:604: 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:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:120:1: note: expanded from here __do_outsb ^ arch/powerpc/include/asm/io.h:544:58: 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/cifs/inode.c:24: 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:604: 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:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:122:1: note: expanded from here __do_outsw ^ arch/powerpc/include/asm/io.h:545:58: 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/cifs/inode.c:24: 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:604: 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:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' __do_##name al; \ ^~~~~~~~~~~~~~ <scratch space>:124:1: note: expanded from here __do_outsl ^ arch/powerpc/include/asm/io.h:546:58: note: expanded from macro '__do_outsl' #define __do_outsl(p, b, n) writesl((PCI_IO_ADDR)_IO_BASE+(p),(b),(n)) ~~~~~~~~~~~~~~~~~~~~~^ >> fs/cifs/inode.c:2882:1: warning: stack frame size of 2096 bytes in function >> 'cifs_setattr' [-Wframe-larger-than=] cifs_setattr(struct dentry *direntry, struct iattr *attrs) ^ 13 warnings generated. vim +/cifs_setattr +2882 fs/cifs/inode.c ^1da177e4c3f415 Linus Torvalds 2005-04-16 2880 0510eeb7367aca0 Jeff Layton 2008-08-02 2881 int 0510eeb7367aca0 Jeff Layton 2008-08-02 @2882 cifs_setattr(struct dentry *direntry, struct iattr *attrs) 0510eeb7367aca0 Jeff Layton 2008-08-02 2883 { fc64005c93090c0 Al Viro 2016-04-10 2884 struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb); 96daf2b09178d8e Steve French 2011-05-27 2885 struct cifs_tcon *pTcon = cifs_sb_master_tcon(cifs_sb); c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2886 int rc, retries = 0; 0510eeb7367aca0 Jeff Layton 2008-08-02 2887 c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2888 do { 0510eeb7367aca0 Jeff Layton 2008-08-02 2889 if (pTcon->unix_ext) c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2890 rc = cifs_setattr_unix(direntry, attrs); c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2891 else c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2892 rc = cifs_setattr_nounix(direntry, attrs); c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2893 retries++; c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2894 } while (is_retryable_error(rc) && retries < 2); 0510eeb7367aca0 Jeff Layton 2008-08-02 2895 0510eeb7367aca0 Jeff Layton 2008-08-02 2896 /* BB: add cifs_setattr_legacy for really old servers */ c6cc4c5a72505a0 Ronnie Sahlberg 2020-10-09 2897 return rc; 0510eeb7367aca0 Jeff Layton 2008-08-02 2898 } 0510eeb7367aca0 Jeff Layton 2008-08-02 2899 :::::: The code at line 2882 was first introduced by commit :::::: 0510eeb7367aca017c6320d04cfd9cbc3b5dd992 turn cifs_setattr into a multiplexor that calls the correct function :::::: TO: Jeff Layton <jlay...@redhat.com> :::::: CC: Steve French <sfre...@us.ibm.com> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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