cdev: Add function to find cdev by device_node ...

This adds a device_node member to struct cdev and a function
to find a cdev by device_node.
This also removes the setting of cdev->dev->device_node in
the of partition parser. We must not set the device since it
may not refer to a partition but to a whole device with partitions.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/net'

fs: efivars: read the attributes on the second get_variable() ...

Some EFI get_variable() implementations don't set the attributes when
returning EFI_BUFFER_TOO_SMALL.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: efivars: add more error checking ...

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: efivars: use xstrdup_* when appropriate ...

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: efi: use xstrdup_* when appropriate ...

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

drop <stddef.h> includes ...

The compilers stddef.h should not be included. We declare all types
ourselves.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs/nfs.c: use SUNRPC_PORT remote port by default ...

pico_socket_connect() needs remote_port != 0.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs/nfs.c: use uint16_t for port numbers ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs/tftp.c: drop unused server_port variable ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/blspec'

Merge branch 'for-next/net'

treewide: fix 'new blank line at EOF' formatting error ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

tftp_recv(): handle opcode field in a more natural way ...

RFC1350 uses the 'opcode' term for the first 2-bytes field
of TFTP packet. But the U-boot tftp code uses the 'proto' term
for the same thing.

The patch takes back original term and makes opcode calculation
more clear.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

tftp_recv(): according to RFC1350 minimal tftp packet length is 4 bytes ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs/tftp: handle incoming packets in the separate tftp_recv() function ...

The separation of incoming packets handling makes it much easier
to run barebox tftp client on top of picotcp network stack in the future.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: nfs: Implement Linux rootarg ...

Add the root= parameter for NFS filesystems. We currently hardcode
v3 and tcp which probably needs to become configurable at some point.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: ubifs: Implement Linux rootarg ...

Add the parameter to boot from ubifs fileystems. This assumes that
there will be only one UBI device registered in the kernel, otherwise
there is no way to predict the ubi number.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: Add device parameter for Linux root= option ...

When registering a filesystem device add a device parameter suitable
for the Linux root= option to boot from exactly this filesystem. Currently
the fs layer sets this parameter to the root=PARTUUID= mechanism if a
partuuid is available. Other filesystems like NFS and UBIFS which do
not have a PARTUUID can overwrite this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

fs: Add O_RWSIZE_8 ...

To support native 64bit accesses in memcpy_sz.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mem: Fix memcpy_sz variable types ...

- Drop usage of 'ulong', use unsigned long
- remove unnecessary intermediate casting to unsigned long
- Use proper u8/u16/u32 types. Fixes 64bit systems on which ulong is 64bit

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/fs'

fs: rename inode member of struct filep to priv ...

Because that's what it is. 'inode' will become confusing
once we support real inodes.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: make "offset" parameter of erase() and protect() 64 bit safe ...

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

linux/kernel.h: rename USHORT_MAX, SHORT_MAX, SHORT_MIN ...

Linux uses SHRT_* instead of SHORT_*.  The <limits.h> of C does
the same.  Let's follow this standard.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: ubifs: remove redundant macro defines ...

fs/ubifs/ubifs.h includes <common.h> and the macros INT_MAX, INT_MIN,
LLONG_MAX are already defined there.

The same defines in fs/ubifs/ubifs.h are redundant.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/misc'

sizes.h: move include/sizes.h to include/linux/sizes.h ...

This file originates in Linux.  Linux has it under include/linux/
directory since commit dccd2304cc90.
Let's move it to the same place as well in barebox.

This commit was generated by the following commands:

  find -name '*.[chS]' | xargs sed -i -e 's:<sizes.h>:<linux/sizes.h>:'
  git mv include/sizes.h include/linux/

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: efivars: implement write support ...

Implement the standard FS ops for writing/manipulating
efivars.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>