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dkim=pass header.d=oracle.com header.s=corp-2021-07-09 header.b=wUQBnF7Q; dkim=pass header.d=oracle.com header.s=corp-2020-01-29 header.b=NcF53XbV; dkim=pass header.d=oracle.onmicrosoft.com header.s=selector2-oracle-onmicrosoft-com header.b=zW0RYxT+; dmarc=pass (policy=none) header.from=oracle.com; spf=none (imf24.hostedemail.com: domain of dan.carpenter@oracle.com has no SPF policy when checking 205.220.177.32) smtp.mailfrom=dan.carpenter@oracle.com X-Stat-Signature: ppd9ckza6gotbu9kgzdhhkozs5gkcif1 X-HE-Tag: 1628669196-732341 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: [ I do a git show 2db9f815409f and it doesn't show that hugetlb.c was modified but it the git log the merge commit is listed. I don't know git well enough to explain it. But I think this was a merge issue. - dan ] Hello Stephen Rothwell, The patch 2db9f815409f: "Merge branch 'akpm-current/current'" from Aug 10, 2021, leads to the following Smatch static checker warning: mm/hugetlb.c:2172 alloc_buddy_huge_page_with_mpol() error: uninitialized symbol 'page'. mm/hugetlb.c 2151 static 2152 struct page *alloc_buddy_huge_page_with_mpol(struct hstate *h, 2153 struct vm_area_struct *vma, unsigned long addr) 2154 { 2155 struct page *page; This should be "struct page *page = NULL;" 2156 struct mempolicy *mpol; 2157 gfp_t gfp_mask = htlb_alloc_mask(h); 2158 int nid; 2159 nodemask_t *nodemask; 2160 2161 nid = huge_node(vma, addr, gfp_mask, &mpol, &nodemask); 2162 if (mpol_is_preferred_many(mpol)) { 2163 gfp_t gfp = gfp_mask | __GFP_NOWARN; 2164 2165 gfp &= ~(__GFP_DIRECT_RECLAIM | __GFP_NOFAIL); 2166 page = alloc_surplus_huge_page(h, gfp, nid, nodemask, false); 2167 2168 /* Fallback to all nodes if page==NULL */ 2169 nodemask = NULL; 2170 } 2171 --> 2172 if (!page) 2173 page = alloc_surplus_huge_page(h, gfp_mask, nid, nodemask, false); 2174 mpol_cond_put(mpol); 2175 return page; 2176 } regards, dan carpenter