Messages in this thread | | | From | Ilya Dryomov <> | Date | Mon, 28 Jun 2021 10:02:40 +0200 | Subject | Re: net/ceph/messenger_v2.c:2808:5: warning: stack frame size (2336) exceeds limit (2048) in function 'ceph_con_v2_try_read' |
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On Mon, Jun 28, 2021 at 3:25 AM kernel test robot <lkp@intel.com> wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 62fb9874f5da54fdb243003b386128037319b219 > commit: cd1a677cad994021b19665ed476aea63f5d54f31 libceph, ceph: implement msgr2.1 protocol (crc and secure modes) > date: 7 months ago > config: powerpc64-randconfig-r034-20210628 (attached as .config) > compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 59558129276098d62046c8cda92240d292cbfb1c) > 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/torvalds/linux.git/commit/?id=cd1a677cad994021b19665ed476aea63f5d54f31 > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout cd1a677cad994021b19665ed476aea63f5d54f31 > # 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@intel.com> > > All warnings (new ones prefixed by >>): > > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > arch/powerpc/include/asm/io.h:601:3: note: expanded from macro 'DEF_PCI_AC_NORET' > __do_##name al; \ > ^~~~~~~~~~~~~~ > <scratch space>:2:1: note: expanded from here > __do_outl > ^ > arch/powerpc/include/asm/io.h:522:62: note: expanded from macro '__do_outl' > #define __do_outl(val, port) writel(val,(PCI_IO_ADDR)_IO_BASE+port); > ~~~~~~~~~~~~~~~~~~~~~^ > In file included from net/ceph/messenger_v2.c:17: > In file included from include/linux/scatterlist.h:9: > In file included from arch/powerpc/include/asm/io.h:604: > arch/powerpc/include/asm/io-defs.h:43:1: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] > DEF_PCI_AC_NORET(insb, (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>:30:1: note: expanded from here > __do_insb > ^ > arch/powerpc/include/asm/io.h:541:56: note: expanded from macro '__do_insb' > #define __do_insb(p, b, n) readsb((PCI_IO_ADDR)_IO_BASE+(p), (b), (n)) > ~~~~~~~~~~~~~~~~~~~~~^ > In file included from net/ceph/messenger_v2.c:17: > In file included from include/linux/scatterlist.h:9: > 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>:34:1: 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 net/ceph/messenger_v2.c:17: > In file included from include/linux/scatterlist.h:9: > 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>:38:1: 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 net/ceph/messenger_v2.c:17: > In file included from include/linux/scatterlist.h:9: > 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>:42:1: 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 net/ceph/messenger_v2.c:17: > In file included from include/linux/scatterlist.h:9: > 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>:46:1: 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 net/ceph/messenger_v2.c:17: > In file included from include/linux/scatterlist.h:9: > 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>:50:1: 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)) > ~~~~~~~~~~~~~~~~~~~~~^ > >> net/ceph/messenger_v2.c:2808:5: warning: stack frame size (2336) exceeds limit (2048) in function 'ceph_con_v2_try_read' [-Wframe-larger-than]
Same as for ceph_con_v1_try_read(), please add this instance to the allowlist.
Thanks,
Ilya
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