Merge branch 'for-next/misc'

recursive_action: add ACTION_SORT flag ...

Add a flag to sort directory entries before recursing into them.

Since this part of lib/ is used inside barebox as well as in
scripts/bareboxenv.c, we cannot easily use stringlists from lib/, which
would have made the code a bit nicer.

Signed-off-by: Florian Bäuerle <florian.baeuerle@allegion.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add generic implementation for muldi3 ...

Since version v2018.08.0 some shared copies of gcc routines got added to
barebox so that archs don't need to have their own copy inside their
lib. The arch I am working on atm also needs support for muldi3 which is
not present as a generic version right now.

This patch adds the generic version from latest linux v4.20 to barebox
and lets the archs select it in their Kconfig so they don't need to
provide it themself.

Signed-off-by: Martin Hofmann <martin.hofmann_at_mni.thm.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

2d-primitives: fix no previous prototype warning ...

Fix the following warnings:

lib/gui/2d-primitives.c:88:6: warning: no
previous prototype for ‘gu_draw_line’ [-Wmissing-prototypes]
 void gu_draw_line(struct screen *sc,
      ^~~~~~~~~~~~
lib/gui/2d-primitives.c:174:6: warning: no
previous prototype for ‘gu_draw_circle’ [-Wmissing-prototypes]
 void gu_draw_circle(struct screen *sc,
      ^~~~~~~~~~~~~~

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib/parameter: Fix typecases to match corresponding PARAM_TYPE_* ...

This change should be a no-op in terms of behavior, but it makes code
less confusing when PARAM_TYPE_* matches the type used in the type
cast.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/missing-prototypes'

lib: bootstrap: fix instance of possibly mismatched pointer sizes ...

len was int but &len is passed to read_file(..., size_t *size),
Fix this.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

getopt: Add pr_fmt ...

To give the debug output more context.

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

lib: lodepng: remove useless test ...

Either the condition 'code_ll==(unsigned int)(-1)' is redundant or the
array 'LENGTHBASE[29]' is accessed at index 4294967038, which is out of
bounds.

On other hand this condition is tested within other scope:
"if(code_ll >= FIRST_LENGTH_CODE_INDEX && code_ll <= LAST_LENGTH_CODE_INDEX)"
with is already limited to (code_ll >= 257 && code_ll <= 285),
so it can't be -1 any way.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

gui: lodepng: Avoid missing prototypes warning ...

- move prototypes to header file
- remove some unused functions
- make locally used functions static.

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

Merge branch 'for-next/net-switch-mv88e6xxx'

Merge branch 'for-next/malloc'

Merge branch 'for-next/imx'

lib: Port CRC8 implementation from Linux kernel ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Port kstrtox.c from Linux kernel ...

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

linux: string: Port kbasename() ...

Port kbasename() from Linux and use it to implement basename() we
already have.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

libfile: Error out if out of memory in read_file_2() ...

All other error cases in read_file_2() are handled gracefully, so
there shouldn't be any reason not do so for the case of trying to
allocate too much memory. This error path can be easily triggered
with:

barebox_update file-bigger-than-availible-ram.img

Currently this would result in a crash which is not really desirable
from user experience.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/ubifs'

vsprintf: implement %pV ...

%pV allows to pass in a struct va_format as a pointer. UBIFS uses this
for its logging functions, but it may be useful in other places aswell.

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

kfifo: roundup fifo size to next power of two ...

Comments in include/kfifo.h state that the FIFO size will be rounded up
to the next power of two, but so far we haven't actually done this,
probably because we didn't have roundup_pow_of_two() back then when
kfifo support was added.

Fix that now and do what the comments state.

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

Merge branch 'for-next/misc'

ratp: fix sending data that won't fit in a single RATP packet ...

We need to advance the input buffer used to create messages when the
data doesn't fit in a single RATP packet.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

libfile: Introduce pwrite_full() ...

Analogous to what we have with write()/write_full(), introduce a
lightweight wrapper around pwrite() that guarantees the either all
data is going to be written or a negative error code would be
returned.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

libfile: open_and_lseek: enlarge small files enough to make lseek possible ...

This makes the following do the expected thing:

	barebox@barebox sandbox:/ ls -l lala
	-rwxrwxrwx              4 lala
	barebox@barebox sandbox:/ mw -d lala 72 0

Without this patch mw dies with

	lseek: Invalid argument

memset, memcpy and probably others benefit in the same way.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

libfile: open_and_lseek: don't imply O_RDONLY ...

There are several users that pass O_RDWR or O_WRONLY in mode to
open_and_lseek() and use the resulting file descriptor for writing. This
is no real issue becauce O_RDONLY is 0 and so can be dropped without
any side effects.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

cmdlinepart: Allow empty string ...

Currently when cmdlinepart_do_parse() is called with an empty
partitions string then an unnamed partition with size 0 is created.
This is wrong of course and instead no partition should be
created.

With this barebox no longer crashes while booting when all partitions
are deleted on the commandline using "nand0.partitions="

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

lib: Add shared copies of some GCC library routines ...

This commit is based on these linux kernel commits:

| commit b35cd98
| Author: Palmer Dabbelt <palmer@dabbelt.com>
| Date:   Tue May 23 10:28:26 2017 -0700
|
|     lib: Add shared copies of some GCC library routines
|
| commit e3d5980
| Author: Matt Redfearn <matt.redfearn@mips.com>
| Date:   Wed Apr 11 08:50:17 2018 +0100
|
|     lib: Rename compiler intrinsic selects to GENERIC_LIB_*

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

Merge branch 'for-next/mvebu'

ARM: lib64: Make string functions aware of MMU configuration ...

Optimized version of memset() in memset.S if called as:

    memset(foo, 0, size)

will try to explicitly zero out data cache with:

    dc	zva, dst

which will result in Alignement Exception (DABT) if MMU is not
enabled.

For more info see:

    - C4.4.8 "DC ZVA, Data Cache Zero by VA"
    - D5.2.8 "The effects of disabling a stage of address translation"

in "ARM Architecture Reference Manual. ARMv8, for ARMv8-A architecture
profile"

In similar vein, using optimized version of memcpy() could lead to a
unaligned 16-byte write (using 'stp'), which is not allowed for
Device-nGnRnE type of memory (see D5.2.8) and would liead to
Alignement Exception.

To fix both problems expose non-optimized and optimzied versions of
the function and created a wrapper to dispatch the call to either one
based on if MMU is enabled or not.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

libfile: implement new helper write_file_flash() ...

Compared to write_file() this new function also calls erase() to be
suitable for flash devices.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>