Re: [PATCH] kdump: Remove redundant DEFAULT_CRASH_KERNEL_LOW_SIZE

From: kernel test robot
Date: Tue Dec 26 2023 - 12:14:09 EST


Hi Youling,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.7-rc7 next-20231222]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Youling-Tang/kdump-Remove-redundant-DEFAULT_CRASH_KERNEL_LOW_SIZE/20231226-193215
base: linus/master
patch link: https://lore.kernel.org/r/MW4PR84MB3145D3EB871BBD59AA71C0FC8198A%40MW4PR84MB3145.NAMPRD84.PROD.OUTLOOK.COM
patch subject: [PATCH] kdump: Remove redundant DEFAULT_CRASH_KERNEL_LOW_SIZE
config: i386-buildonly-randconfig-002-20231226 (https://download.01.org/0day-ci/archive/20231227/202312270133.8w4Wrh4h-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231227/202312270133.8w4Wrh4h-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312270133.8w4Wrh4h-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

arch/x86/kernel/setup.c: In function 'arch_reserve_crashkernel':
>> arch/x86/kernel/setup.c:479:8: error: implicit declaration of function 'parse_crashkernel' [-Werror=implicit-function-declaration]
479 | ret = parse_crashkernel(cmdline, memblock_phys_mem_size(),
| ^~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors


vim +/parse_crashkernel +479 arch/x86/kernel/setup.c

a0a0becd2da0ba Yinghai Lu 2008-07-03 468
9c08a2a139fe83 Baoquan He 2023-09-14 469 static void __init arch_reserve_crashkernel(void)
ccb4defa71744f Yinghai Lu 2008-06-25 470 {
9c08a2a139fe83 Baoquan He 2023-09-14 471 unsigned long long crash_base, crash_size, low_size = 0;
9c08a2a139fe83 Baoquan He 2023-09-14 472 char *cmdline = boot_command_line;
55a20ee7804ab6 Yinghai Lu 2013-04-15 473 bool high = false;
ccb4defa71744f Yinghai Lu 2008-06-25 474 int ret;
ccb4defa71744f Yinghai Lu 2008-06-25 475
4ece09be9913a8 Jisheng Zhang 2022-03-23 476 if (!IS_ENABLED(CONFIG_KEXEC_CORE))
4ece09be9913a8 Jisheng Zhang 2022-03-23 477 return;
4ece09be9913a8 Jisheng Zhang 2022-03-23 478
9c08a2a139fe83 Baoquan He 2023-09-14 @479 ret = parse_crashkernel(cmdline, memblock_phys_mem_size(),
9c08a2a139fe83 Baoquan He 2023-09-14 480 &crash_size, &crash_base,
9c08a2a139fe83 Baoquan He 2023-09-14 481 &low_size, &high);
9c08a2a139fe83 Baoquan He 2023-09-14 482 if (ret)
32105f7fd8faa7 Bernhard Walle 2008-06-26 483 return;
32105f7fd8faa7 Bernhard Walle 2008-06-26 484
3db3eb285259ac Petr Tesarik 2018-04-25 485 if (xen_pv_domain()) {
3db3eb285259ac Petr Tesarik 2018-04-25 486 pr_info("Ignoring crashkernel for a Xen PV domain\n");
3db3eb285259ac Petr Tesarik 2018-04-25 487 return;
3db3eb285259ac Petr Tesarik 2018-04-25 488 }
3db3eb285259ac Petr Tesarik 2018-04-25 489
9c08a2a139fe83 Baoquan He 2023-09-14 490 reserve_crashkernel_generic(cmdline, crash_size, crash_base,
9c08a2a139fe83 Baoquan He 2023-09-14 491 low_size, high);
ccb4defa71744f Yinghai Lu 2008-06-25 492 }
ccb4defa71744f Yinghai Lu 2008-06-25 493

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