From: Simon Glass <simon.glass@canonical.com> This series continues the ext4l port by adding super.c to the build. The super.c file contains the superblock operations and filesystem registration code from the kernel's ext4 driver. To support this effort compilation, this series adds numerous stubs and compatibility shims for Linux kernel interfaces not available in U-Boot, including block device operations, filesystem context handling, NFS export helpers, and various utility functions. In particular, fs/ext4l/ext4_uboot.h contains a lot of U-Boot specific declarations and stubs, with fs/ext4l/stub.c containing various others. The goal is to eventually have a fully functional ext4 implementation ported from Linux that can be used for both reading and writing ext4 filesystems in U-Boot. Simon Glass (10): ext4l: Fix unused variable warnings in extents_status.c ext4l: Add stubs for xattr functions used by ialloc.c ext4l: Add orphan.c and required support ext4l: Add xattr_trusted.c ext4l: Add xattr_user.c and xattr_hurd.c ext4l: Add linux/utsname.h stub header ext4l: Add kiocb, iov_iter structures and IOCB_* constants ext4l: Add inode.c to build ext4l: Add dir.c to build ext4l: Add super.c to build fs/ext4l/Makefile | 7 +- fs/ext4l/dir.c | 6 +- fs/ext4l/ext4_uboot.h | 1276 +++++++++++++++++++++++++++++++- fs/ext4l/extents_status.c | 13 +- fs/ext4l/file.c | 20 +- fs/ext4l/ialloc.c | 1 + fs/ext4l/inode.c | 39 +- fs/ext4l/orphan.c | 5 +- fs/ext4l/stub.c | 802 ++++++++++++++++---- fs/ext4l/super.c | 32 +- fs/ext4l/xattr_hurd.c | 1 + fs/ext4l/xattr_trusted.c | 3 +- fs/ext4l/xattr_user.c | 2 +- include/kunit/static_stub.h | 13 + include/linux/atomic.h | 0 include/linux/buffer_head.h | 12 +- include/linux/freezer.h | 8 +- include/linux/fs.h | 22 +- include/linux/init.h | 4 +- include/linux/iomap.h | 8 + include/linux/jbd2.h | 3 + include/linux/kthread.h | 4 +- include/linux/mpage.h | 14 + include/linux/mutex.h | 2 +- include/linux/nospec.h | 14 + include/linux/percpu_counter.h | 2 + include/linux/rmap.h | 7 + include/linux/sched.h | 7 + include/linux/seq_file.h | 7 +- include/linux/slab.h | 12 +- include/linux/timer.h | 18 +- include/linux/utsname.h | 21 + include/linux/workqueue.h | 4 +- include/linux/xattr.h | 3 + 34 files changed, 2100 insertions(+), 292 deletions(-) create mode 100644 include/kunit/static_stub.h create mode 100644 include/linux/atomic.h create mode 100644 include/linux/mpage.h create mode 100644 include/linux/nospec.h create mode 100644 include/linux/rmap.h create mode 100644 include/linux/utsname.h -- 2.43.0 base-commit: f78459ca04cbcfd85e57459d76497c03b3bf07a4 branch: extd