crypto: digest: Return -errno if stat() fails ...

Strictly speaking, stat() doesn't return a detailed error code as its
return value and it can and should be obtained via 'errno'.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

crypto: digest: Return -errno if lseek() fails ...

Strictly speaking, lseek() doesn't return a detailed error code as its
return value and it can and should be obtained via 'errno'. In this
case this change also allows us to avoid potential problems from
downconverting 'loff_t' to 'int'.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

crypto: digest: Return -errno if open() fails ...

Strictly speaking, open() doesn't return a detailed error code as its
return value and it can and should be obtained via 'errno'.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

crypto: digest: Change the signature of digest_file_window() ...

On 32-bit systems "ulong" will limit digest_file_window()'s maximum
size to 4 GiB. Convert "start" and "size" to "loff_t" in order to be
able to handle maximum file size supported by the rest of the system.

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

commands: digest: Use MAX_LFS_FILESIZE instead of ~0 ...

Loff_t is a signed type, so ~0 is a negative number. While it works OK
due to clamping/conversion to ulong when passed to
digest_file_window(), it is better not to rely on that fact and use an
appropriate constant.

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

crypto: digest: Split memory vs. file code into separate functions ...

Instead of trying to fit two rather different cases into a single
loop, split digesting memory and digesting files into separate
subroutines. While duplicating some of the code shared by both of the
while() loops this makes the body of the loop easier to follow as well
as gets rid of poorly named "flags" variable.

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

crypto: digest: Replace 4096 with PAGE_SIZE ...

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

crypto: digest: Remove unused variable ...

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

treewide: Introduce MAP_FAILED and replace ad-hoc constants with it ...

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

Merge branch 'for-next/ultrascale'

Merge branch 'for-next/risc-V'

Merge branch 'for-next/pci'

Merge branch 'for-next/nvstore'

Merge branch 'for-next/net'

Merge branch 'for-next/mtd'

Merge branch 'for-next/mmc'

Merge branch 'for-next/missing-prototypes'

Merge branch 'for-next/misc'

Merge branch 'for-next/mips'

Merge branch 'for-next/kconfig'

Merge branch 'for-next/imx'

Merge branch 'for-next/fastboot'

Merge branch 'for-next/envfs-sort'

Merge branch 'for-next/e1000'

Merge branch 'for-next/dts'

Merge branch 'for-next/clps711x'

Merge branch 'for-next/am35xx'

ARM: imx8mq: use upstream devicetree ...

The basic DT is upstream now, so we can now reuse this in Barebox.

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

pinctrl: imx-v3: imx8mq does use the old binding ...

The upstream discussion concluded on using the same binding as
on previous i.MX SoCs.

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

clk: imx: sync imx8mq clock driver with upstream kernel ...

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