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Message-ID: <52ed7607-a4bb-947e-d76d-00715ad7634e@huawei.com>
Date: Fri, 1 Apr 2022 13:17:49 +0800
From: Kefeng Wang <wangkefeng.wang@...wei.com>
To: kernel test robot <lkp@...el.com>, <catalin.marinas@....com>,
<will@...nel.org>, <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>
CC: <kbuild-all@...ts.01.org>, <vijayb@...ux.microsoft.com>,
<f.fainelli@...il.com>
Subject: Re: [PATCH v2 resend 2/3] arm64: mm: Don't defer
reserve_crashkernel() with dma_force_32bit
On 2022/4/1 0:14, kernel test robot wrote:
> Hi Kefeng,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on next-20220330]
> [cannot apply to arm64/for-next/core v5.17 v5.17-rc8 v5.17-rc7 v5.17]
> [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]
>
> url: https://github.com/intel-lab-lkp/linux/commits/Kefeng-Wang/arm64-mm-Do-not-defer-reserve_crashkernel/20220331-152839
> base: a67ba3cf9551f8c92d5ec9d7eae1aadbb9127b57
> config: arm64-buildonly-randconfig-r001-20220331 (https://download.01.org/0day-ci/archive/20220401/202204010040.RUk6NuNS-lkp@intel.com/config)
> compiler: aarch64-linux-gcc (GCC) 11.2.0
> 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
> # https://github.com/intel-lab-lkp/linux/commit/970ec526bd69287a4eb9838600aaf66c46fde350
> git remote add linux-review https://github.com/intel-lab-lkp/linux
> git fetch --no-tags linux-review Kefeng-Wang/arm64-mm-Do-not-defer-reserve_crashkernel/20220331-152839
> git checkout 970ec526bd69287a4eb9838600aaf66c46fde350
> # save the config file to linux build tree
> mkdir build_dir
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/mm/
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
>
> All warnings (new ones prefixed by >>):
>
>>> arch/arm64/mm/init.c:108:13: warning: no previous prototype for 'crashkernel_could_early_reserve' [-Wmissing-prototypes]
> 108 | bool __init crashkernel_could_early_reserve(void)
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Let's wait for some feedback, add <asm/kexec.h> into init.c could
silence the warning.
thanks.
>
> vim +/crashkernel_could_early_reserve +108 arch/arm64/mm/init.c
>
> 107
> > 108 bool __init crashkernel_could_early_reserve(void)
> 109 {
> 110 if (!IS_ENABLED(CONFIG_ZONE_DMA))
> 111 return true;
> 112 if (arm64_dma_force_32bit)
> 113 return true;
> 114 return false;
> 115 }
> 116
>
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