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Delete those which aren't used. Delete some unused/unnecessary forward struct declarations for a change. Signed-off-by: Alexey Dobriyan --- fs/ramfs/inode.c | 1 - include/linux/console.h | 2 -- include/linux/device.h | 3 --- include/linux/ftrace.h | 4 ---- include/linux/security.h | 6 ------ include/linux/signal.h | 2 -- include/linux/syscalls.h | 7 ------- include/linux/sysfs.h | 2 -- mm/internal.h | 4 ---- mm/shmem.c | 1 - 10 files changed, 32 deletions(-) --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -51,7 +51,6 @@ struct ramfs_fs_info { #define RAMFS_DEFAULT_MODE 0755 -static const struct super_operations ramfs_ops; static const struct inode_operations ramfs_dir_inode_operations; struct inode *ramfs_get_inode(struct super_block *sb, --- a/include/linux/console.h +++ b/include/linux/console.h @@ -21,10 +21,8 @@ #include struct vc_data; -struct console_font_op; struct console_font; struct module; -struct tty_struct; struct notifier_block; enum con_scroll { --- a/include/linux/device.h +++ b/include/linux/device.h @@ -36,10 +36,7 @@ struct device; struct device_private; struct device_driver; -struct driver_private; struct module; -struct class; -struct subsys_private; struct device_node; struct fwnode_handle; struct iommu_group; --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -531,8 +531,6 @@ extern const void *ftrace_expected; void ftrace_bug(int err, struct dyn_ftrace *rec); -struct seq_file; - extern int ftrace_text_reserved(const void *start, const void *end); struct ftrace_ops *ftrace_ops_trampoline(unsigned long addr); @@ -1147,8 +1145,6 @@ static inline void unpause_graph_tracing(void) { } #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ #ifdef CONFIG_TRACING -enum ftrace_dump_mode; - #define MAX_TRACER_SIZE 100 extern char ftrace_dump_on_oops[]; extern int ftrace_dump_on_oops_enabled(void); --- a/include/linux/security.h +++ b/include/linux/security.h @@ -41,7 +41,6 @@ struct rlimit; struct kernel_siginfo; struct sembuf; struct kern_ipc_perm; -struct audit_context; struct super_block; struct inode; struct dentry; @@ -59,8 +58,6 @@ struct xfrm_sec_ctx; struct mm_struct; struct fs_context; struct fs_parameter; -enum fs_value_type; -struct watch; struct watch_notification; struct lsm_ctx; @@ -183,8 +180,6 @@ struct sock; struct sockaddr; struct socket; struct flowi_common; -struct dst_entry; -struct xfrm_selector; struct xfrm_policy; struct xfrm_state; struct xfrm_user_sec_ctx; @@ -219,7 +214,6 @@ extern unsigned long dac_mmap_min_addr; #define LSM_PRLIMIT_WRITE 2 /* forward declares to avoid warnings */ -struct sched_param; struct request_sock; /* bprm->unsafe reasons */ --- a/include/linux/signal.h +++ b/include/linux/signal.h @@ -274,8 +274,6 @@ static inline int valid_signal(unsigned long sig) return sig <= _NSIG ? 1 : 0; } -struct timespec; -struct pt_regs; enum pid_type; extern int next_signal(struct sigpending *pending, sigset_t *mask); --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -11,8 +11,6 @@ struct __aio_sigset; struct epoll_event; -struct iattr; -struct inode; struct iocb; struct io_event; struct iovec; @@ -20,14 +18,12 @@ struct __kernel_old_itimerval; struct kexec_segment; struct linux_dirent; struct linux_dirent64; -struct list_head; struct mmap_arg_struct; struct msgbuf; struct user_msghdr; struct mmsghdr; struct msqid_ds; struct new_utsname; -struct nfsctl_arg; struct __old_kernel_stat; struct oldold_utsname; struct old_utsname; @@ -38,7 +34,6 @@ struct rusage; struct sched_param; struct sched_attr; struct sel_arg_struct; -struct semaphore; struct sembuf; struct shmid_ds; struct sockaddr; @@ -48,14 +43,12 @@ struct statfs; struct statfs64; struct statx; struct sysinfo; -struct timespec; struct __kernel_old_timeval; struct __kernel_timex; struct timezone; struct tms; struct utimbuf; struct mq_attr; -struct compat_stat; struct old_timeval32; struct robust_list_head; struct futex_waitv; --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -23,9 +23,7 @@ #include struct kobject; -struct module; struct bin_attribute; -enum kobj_ns_type; struct attribute { const char *name; --- a/mm/internal.h +++ b/mm/internal.h @@ -1095,10 +1095,6 @@ unsigned int reclaim_clean_pages_from_list(struct zone *zone, /* Flags that allow allocations below the min watermark. */ #define ALLOC_RESERVES (ALLOC_NON_BLOCK|ALLOC_MIN_RESERVE|ALLOC_HIGHATOMIC|ALLOC_OOM) -enum ttu_flags; -struct tlbflush_unmap_batch; - - /* * only for MM internal work items which do not depend on * any allocations or locks which might depend on allocations --- a/mm/shmem.c +++ b/mm/shmem.c @@ -261,7 +261,6 @@ static const struct inode_operations shmem_dir_inode_operations; static const struct inode_operations shmem_special_inode_operations; static const struct vm_operations_struct shmem_vm_ops; static const struct vm_operations_struct shmem_anon_vm_ops; -static struct file_system_type shmem_fs_type; bool shmem_mapping(struct address_space *mapping) {