[peterz-queue:x86/core 2/2] arch/x86/kernel/traps.c:468:38: error: 'address' undeclared

From: kernel test robot
Date: Thu Sep 16 2021 - 00:47:54 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git x86/core
head: 647d1adb49f099ced76b510d55365be7f3063341
commit: 647d1adb49f099ced76b510d55365be7f3063341 [2/2] x86/dumpstack/64: Add guard pages to stack_info
config: x86_64-randconfig-a011-20210916 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?id=647d1adb49f099ced76b510d55365be7f3063341
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue x86/core
git checkout 647d1adb49f099ced76b510d55365be7f3063341
# save the attached .config to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

arch/x86/kernel/traps.c: In function 'exc_double_fault':
>> arch/x86/kernel/traps.c:468:38: error: 'address' undeclared (first use in this function)
468 | if (get_stack_info_noinstr((void *)address, current, &info) &&
| ^~~~~~~
arch/x86/kernel/traps.c:468:38: note: each undeclared identifier is reported only once for each function it appears in


vim +/address +468 arch/x86/kernel/traps.c

463
464 #ifdef CONFIG_X86_64
465 {
466 struct stack_info info;
467
> 468 if (get_stack_info_noinstr((void *)address, current, &info) &&
469 info.type & STACK_TYPE_GUARD) {
470 const char *name = stack_type_name(info.type & ~STACK_TYPE_GUARD);
471 pr_emerg("BUG: %s stack guard hit at %p (stack is %p..%p)\n",
472 name, (void *)address, info.begin, info.end);
473 }
474 }
475 #endif
476
477 pr_emerg("PANIC: double fault, error_code: 0x%lx\n", error_code);
478 die("double fault", regs, error_code);
479 panic("Machine halted.");
480 instrumentation_end();
481 }
482

---
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Attachment: .config.gz
Description: application/gzip