Im trying to use macros from include/linux/compiler.h and theyre giving me warnings that dont look right. after thrashing on my own hacks, I looked to well established uses for guidance. But make C=1 fs/file.o also gives errors, similar to mine. What am I missing ? or has some bitrot set in ? 202static int expand_fdtable(struct files_struct *files, int nr) 203 __releases(files->file_lock) 204 __acquires(files->file_lock) 205{ 206 struct fdtable *new_fdt, *cur_fdt; 207 208 spin_unlock(&files->file_lock); 209 new_fdt = alloc_fdtable(nr); 210 spin_lock(&files->file_lock); ... 247int expand_files(struct files_struct *files, int nr) 248{ ... 268 /* All good, so we try */ 269 return expand_fdtable(files, nr); 270} CHECK /home/jimc/projects/lx/linux-2.6/fs/file.c /home/jimc/projects/lx/linux-2.6/fs/file.c:32:5: warning: symbol 'sysctl_nr_open_min' was not declared. Should it be static? /home/jimc/projects/lx/linux-2.6/fs/file.c:33:5: warning: symbol 'sysctl_nr_open_max' was not declared. Should it be static? /home/jimc/projects/lx/linux-2.6/fs/file.c:416:21: warning: symbol 'init_files' was not declared. Should it be static? /home/jimc/projects/lx/linux-2.6/include/linux/spinlock.h:325:2: warning: context problem in 'expand_fdtable': '_raw_spin_unlock' expected different context /home/jimc/projects/lx/linux-2.6/include/linux/spinlock.h:325:2: context 'lock': wanted >= 1, got 0 /home/jimc/projects/lx/linux-2.6/fs/file.c:269:23: warning: context problem in 'expand_files': 'expand_fdtable' expected different context /home/jimc/projects/lx/linux-2.6/fs/file.c:269:23: context 'file_lock': wanted >= 1, got 0