Messages in this thread | | | Date | Mon, 1 Nov 2021 23:32:32 +0800 | From | kernel test robot <> | Subject | fs/hugetlbfs/inode.c:1503:1: warning: ISO C90 forbids mixed declarations and code |
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tree: https://github.com/0day-ci/linux/commits/UPDATE-20211101-194552/zhangyiru/mm-hugetlb-remove-mlock-ulimit-for-SHM_HUGETLB/20211009-094538 head: 00d28e7a2b1786c1ab3b63cc3abb4aca5c02fdfd commit: 00d28e7a2b1786c1ab3b63cc3abb4aca5c02fdfd mm,hugetlb: remove mlock ulimit for SHM_HUGETLB date: 4 hours ago config: x86_64-randconfig-a012-20211101 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/00d28e7a2b1786c1ab3b63cc3abb4aca5c02fdfd git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20211101-194552/zhangyiru/mm-hugetlb-remove-mlock-ulimit-for-SHM_HUGETLB/20211009-094538 git checkout 00d28e7a2b1786c1ab3b63cc3abb4aca5c02fdfd # save the attached .config to linux build tree make W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
fs/hugetlbfs/inode.c:1448:14: error: conflicting types for 'hugetlb_file_setup' 1448 | struct file *hugetlb_file_setup(const char *name, size_t size, | ^~~~~~~~~~~~~~~~~~ In file included from fs/hugetlbfs/inode.c:28: include/linux/hugetlb.h:470:14: note: previous declaration of 'hugetlb_file_setup' was here 470 | struct file *hugetlb_file_setup(const char *name, size_t size, vm_flags_t acct, | ^~~~~~~~~~~~~~~~~~ fs/hugetlbfs/inode.c: In function 'hugetlb_file_setup': fs/hugetlbfs/inode.c:1466:4: error: 'ucounts' undeclared (first use in this function) 1466 | *ucounts = current_ucounts(); | ^~~~~~~ fs/hugetlbfs/inode.c:1466:4: note: each undeclared identifier is reported only once for each function it appears in fs/hugetlbfs/inode.c:1503:32: error: invalid storage class for function 'mount_one_hugetlbfs' 1503 | static struct vfsmount *__init mount_one_hugetlbfs(struct hstate *h) | ^~~~~~~~~~~~~~~~~~~ >> fs/hugetlbfs/inode.c:1503:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 1503 | static struct vfsmount *__init mount_one_hugetlbfs(struct hstate *h) | ^~~~~~ fs/hugetlbfs/inode.c:1523:19: error: invalid storage class for function 'init_hugetlbfs_fs' 1523 | static int __init init_hugetlbfs_fs(void) | ^~~~~~~~~~~~~~~~~ In file included from include/asm-generic/bug.h:5, from arch/x86/include/asm/bug.h:84, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from fs/hugetlbfs/inode.c:12: include/linux/compiler.h:244:46: error: initializer element is not constant 244 | __UNIQUE_ID(__PASTE(__addressable_,sym)) = (void *)&sym; | ^ include/linux/init.h:236:2: note: in expansion of macro '__ADDRESSABLE' 236 | __ADDRESSABLE(fn) | ^~~~~~~~~~~~~ include/linux/init.h:241:2: note: in expansion of macro '__define_initcall_stub' 241 | __define_initcall_stub(__stub, fn) \ | ^~~~~~~~~~~~~~~~~~~~~~ include/linux/init.h:254:2: note: in expansion of macro '____define_initcall' 254 | ____define_initcall(fn, \ | ^~~~~~~~~~~~~~~~~~~ include/linux/init.h:260:2: note: in expansion of macro '__unique_initcall' 260 | __unique_initcall(fn, id, __sec, __initcall_id(fn)) | ^~~~~~~~~~~~~~~~~ include/linux/init.h:262:35: note: in expansion of macro '___define_initcall' 262 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id) | ^~~~~~~~~~~~~~~~~~ include/linux/init.h:288:27: note: in expansion of macro '__define_initcall' 288 | #define fs_initcall(fn) __define_initcall(fn, 5) | ^~~~~~~~~~~~~~~~~ fs/hugetlbfs/inode.c:1579:1: note: in expansion of macro 'fs_initcall' 1579 | fs_initcall(init_hugetlbfs_fs) | ^~~~~~~~~~~ In file included from include/linux/bits.h:22, from include/linux/ratelimit_types.h:5, from include/linux/printk.h:10, from include/asm-generic/bug.h:22, from arch/x86/include/asm/bug.h:84, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from fs/hugetlbfs/inode.c:12: >> include/linux/build_bug.h:78:41: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~~~~~~~~~~~ include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) | ^~~~~~~~~~~~~~~ include/linux/init.h:246:2: note: in expansion of macro 'static_assert' 246 | static_assert(__same_type(initcall_t, &fn)); | ^~~~~~~~~~~~~ include/linux/init.h:254:2: note: in expansion of macro '____define_initcall' 254 | ____define_initcall(fn, \ | ^~~~~~~~~~~~~~~~~~~ include/linux/init.h:260:2: note: in expansion of macro '__unique_initcall' 260 | __unique_initcall(fn, id, __sec, __initcall_id(fn)) | ^~~~~~~~~~~~~~~~~ include/linux/init.h:262:35: note: in expansion of macro '___define_initcall' 262 | #define __define_initcall(fn, id) ___define_initcall(fn, id, .initcall##id) | ^~~~~~~~~~~~~~~~~~ include/linux/init.h:288:27: note: in expansion of macro '__define_initcall' 288 | #define fs_initcall(fn) __define_initcall(fn, 5) | ^~~~~~~~~~~~~~~~~ fs/hugetlbfs/inode.c:1579:1: note: in expansion of macro 'fs_initcall' 1579 | fs_initcall(init_hugetlbfs_fs) | ^~~~~~~~~~~ fs/hugetlbfs/inode.c:1579:1: error: expected declaration or statement at end of input fs/hugetlbfs/inode.c:1579: error: control reaches end of non-void function [-Werror=return-type] 1579 | fs_initcall(init_hugetlbfs_fs) | cc1: some warnings being treated as errors
vim +1503 fs/hugetlbfs/inode.c
^1da177e4c3f41 Linus Torvalds 2005-04-16 1502 32021982a324dc David Howells 2018-11-01 @1503 static struct vfsmount *__init mount_one_hugetlbfs(struct hstate *h) 32021982a324dc David Howells 2018-11-01 1504 { 32021982a324dc David Howells 2018-11-01 1505 struct fs_context *fc; 32021982a324dc David Howells 2018-11-01 1506 struct vfsmount *mnt; 32021982a324dc David Howells 2018-11-01 1507 32021982a324dc David Howells 2018-11-01 1508 fc = fs_context_for_mount(&hugetlbfs_fs_type, SB_KERNMOUNT); 32021982a324dc David Howells 2018-11-01 1509 if (IS_ERR(fc)) { 32021982a324dc David Howells 2018-11-01 1510 mnt = ERR_CAST(fc); 32021982a324dc David Howells 2018-11-01 1511 } else { 32021982a324dc David Howells 2018-11-01 1512 struct hugetlbfs_fs_context *ctx = fc->fs_private; 32021982a324dc David Howells 2018-11-01 1513 ctx->hstate = h; 32021982a324dc David Howells 2018-11-01 1514 mnt = fc_mount(fc); 32021982a324dc David Howells 2018-11-01 1515 put_fs_context(fc); 32021982a324dc David Howells 2018-11-01 1516 } 32021982a324dc David Howells 2018-11-01 1517 if (IS_ERR(mnt)) a25fddced835ae Miaohe Lin 2021-02-24 1518 pr_err("Cannot mount internal hugetlbfs for page size %luK", a25fddced835ae Miaohe Lin 2021-02-24 1519 huge_page_size(h) >> 10); 32021982a324dc David Howells 2018-11-01 1520 return mnt; 32021982a324dc David Howells 2018-11-01 1521 } 32021982a324dc David Howells 2018-11-01 1522
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