Could someone figure this out? Its been there for years. On Sun, 11 Sep 2016, kbuild test robot wrote:
> Hi Christoph, > > FYI, the error/warning still remains. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > master > head: 98ac9a608dc79ba8a20cee77fe959a6dfccdaa63 > commit: abec1a806e0c3cf168999667d5fb6218398ef12a percpu: Make > __verify_pcu_ptr handle per cpu pointers to arrays > date: 3 years, 1 month ago > config: mn10300-allmodconfig (attached as .config) > compiler: am33_2.0-linux-gcc (GCC) 4.9.0 > reproduce: > wget > https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross > -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout abec1a806e0c3cf168999667d5fb6218398ef12a > # save the attached .config to linux build tree > make.cross ARCH=mn10300 > > All errors (new ones prefixed by >>): > > In file included from net/dccp/probe.c:26:0: > include/linux/kprobes.h: In function 'get_kprobe_ctlblk': > >> include/linux/kprobes.h:332:2: error: invalid use of undefined type > >> 'struct kprobe_ctlblk' > return (&__get_cpu_var(kprobe_ctlblk)); > ^ > In file included from arch/mn10300/include/asm/percpu.h:1:0, > from include/linux/percpu.h:10, > from include/linux/kprobes.h:38, > from net/dccp/probe.c:26: > include/asm-generic/percpu.h:83:29: error: dereferencing pointer to > incomplete type > #define __get_cpu_var(var) (*VERIFY_PERCPU_PTR(&(var))) > ^ > include/linux/kprobes.h:332:11: note: in expansion of macro '__get_cpu_var' > return (&__get_cpu_var(kprobe_ctlblk)); > ^ > > vim +332 include/linux/kprobes.h > > ef53d9c5e Srinivasa D S 2008-07-25 316 void > kretprobe_hash_unlock(struct task_struct *tsk, unsigned long *flags); > b94cce926 Hien Nguyen 2005-06-23 317 struct hlist_head * > kretprobe_inst_table_head(struct task_struct *tsk); > ^1da177e4 Linus Torvalds 2005-04-16 318 > e65845235 Ananth N Mavinakayanahalli 2005-11-07 319 /* kprobe_running() > will just return the current_kprobe on this CPU */ > e65845235 Ananth N Mavinakayanahalli 2005-11-07 320 static inline struct > kprobe *kprobe_running(void) > e65845235 Ananth N Mavinakayanahalli 2005-11-07 321 { > b76834bc1 Christoph Lameter 2010-12-06 322 return > (__this_cpu_read(current_kprobe)); > e65845235 Ananth N Mavinakayanahalli 2005-11-07 323 } > e65845235 Ananth N Mavinakayanahalli 2005-11-07 324 > e65845235 Ananth N Mavinakayanahalli 2005-11-07 325 static inline void > reset_current_kprobe(void) > e65845235 Ananth N Mavinakayanahalli 2005-11-07 326 { > b76834bc1 Christoph Lameter 2010-12-06 327 > __this_cpu_write(current_kprobe, NULL); > e65845235 Ananth N Mavinakayanahalli 2005-11-07 328 } > e65845235 Ananth N Mavinakayanahalli 2005-11-07 329 > e65845235 Ananth N Mavinakayanahalli 2005-11-07 330 static inline struct > kprobe_ctlblk *get_kprobe_ctlblk(void) > e65845235 Ananth N Mavinakayanahalli 2005-11-07 331 { > e65845235 Ananth N Mavinakayanahalli 2005-11-07 @332 return > (&__get_cpu_var(kprobe_ctlblk)); > e65845235 Ananth N Mavinakayanahalli 2005-11-07 333 } > e65845235 Ananth N Mavinakayanahalli 2005-11-07 334 > ^1da177e4 Linus Torvalds 2005-04-16 335 int > register_kprobe(struct kprobe *p); > ^1da177e4 Linus Torvalds 2005-04-16 336 void > unregister_kprobe(struct kprobe *p); > 9861668f7 Masami Hiramatsu 2008-04-28 337 int > register_kprobes(struct kprobe **kps, int num); > 9861668f7 Masami Hiramatsu 2008-04-28 338 void > unregister_kprobes(struct kprobe **kps, int num); > ^1da177e4 Linus Torvalds 2005-04-16 339 int > setjmp_pre_handler(struct kprobe *, struct pt_regs *); > ^1da177e4 Linus Torvalds 2005-04-16 340 int > longjmp_break_handler(struct kprobe *, struct pt_regs *); > > :::::: The code at line 332 was first introduced by commit > :::::: e65845235c8120be63001fc1a4ac00c819194bbe [PATCH] Kprobes: Track kprobe > on a per_cpu basis - base changes > > :::::: TO: Ananth N Mavinakayanahalli <[email protected]> > :::::: CC: Linus Torvalds <[email protected]> > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation >
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