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Sat, 06 Apr 2024 15:40:52 -0700 (PDT) Received: from localhost.localdomain ([2407:7000:8942:5500:aaa1:59ff:fe57:eb97]) by smtp.gmail.com with ESMTPSA id jf20-20020a170903269400b001dd82855d47sm3869450plb.265.2024.04.06.15.40.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Apr 2024 15:40:51 -0700 (PDT) From: Barry Song <21cnbao@gmail.com> To: lkp@intel.com Cc: akpm@linux-foundation.org, linux-mm@kvack.org, llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, v-songbaohua@oppo.com Subject: [akpm-mm:mm-unstable 313/322] include/linux/huge_mm.h:274:16: error: fields must have a constant size: 'variable length array in structure' extension will never be supported Date: Sun, 7 Apr 2024 10:40:38 +1200 Message-Id: <20240406224038.5412-1-21cnbao@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <202404061754.n8jmZ6s3-lkp@intel.com> References: <202404061754.n8jmZ6s3-lkp@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 637F7C000A X-Stat-Signature: nubj1tp68crbd3tu5n46s56mep5g5kpj X-Rspam-User: X-HE-Tag: 1712443253-576753 X-HE-Meta: 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 ucJLFWHy Nceb0+QYJCpV3oM9Bdm+bq7k6Ak46SDYXXNUzo44jxM+601LcYhebV5um11vjkyFgJeFdqsBMHDmvfZ83ltqCtUfRep2k68gHyFoa2gZk9Viad+Y1t43Pr/cWBlrL3gdzOPHLZc/mCyW/17RyF6K2V1m0HofbeTpHtvwA X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable > head: f43b3aae94511d62174c3b29239da0dd22d0eeb3 > commit: d4358ee0a075e232114dfec0cd162860cfa2771b [313/322] mm: add per-order mTHP anon_alloc and anon_alloc_fallback counters > config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20240406/202404061754.n8jmZ6s3-lkp@intel.com/config) > compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 546dc2245ffc4cccd0b05b58b7a5955e355a3b27) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240406/202404061754.n8jmZ6s3-lkp@intel.com/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 > | Closes: https://lore.kernel.org/oe-kbuild-all/202404061754.n8jmZ6s3-lkp@intel.com/ > > All error/warnings (new ones prefixed by >>): > > In file included from arch/powerpc/kernel/asm-offsets.c:19: > In file included from include/linux/mman.h:5: > In file included from include/linux/mm.h:1115: >>> include/linux/huge_mm.h:274:22: warning: variable length array used [-Wvla] > 274 | unsigned long stats[PMD_ORDER + 1][__MTHP_STAT_COUNT]; > | ^~~~~~~~~~~~~ This is amazing. powerpc's PMD_ORDER isn't const. I will move to alloc_percpu instead of using a static array. Thanks Barry