S_ISBLK 25 include/uapi/linux/stat.h #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK) S_ISBLK 218 tools/include/nolibc/nolibc.h #define S_ISBLK(mode) (((mode) & S_IFBLK) == S_IFBLK) S_ISBLK 25 tools/include/uapi/linux/stat.h #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)