u-boot.git/include/linux/kernel.h, branch v2025.01

mbedtls: add mbedtls into the build system

2024-10-14T23:58:12+00:00

Port mbedtls with adapted libc header files.
Add mbedtls default config header file.
Optimize mbedtls default config by disabling unused features to
reduce the target size.
Add mbedtls kbuild makefile.
Add Kconfig skeleton and config submenu entry for selecting
crypto libraries between mbedtls and legacy ones.
Add the mbedtls include directories into the build system.
Port u-boot hash functions as MbedTLS crypto alternatives and set
it as default.

Subsequent patches will separate those Kconfigs into pairs of
_LEGACY and _MBEDTLS for controlling the implementations of legacy
crypto libraries and MbedTLS ones respectively.

The motivation of moving and adapting *INT* macros from kernel.h
to limits.h is to fulfill the MbedTLS building requirement.
The conditional compilation statements in MbedTLS expects the
*INT* macros as constant expressions, thus expressions like
`((int)(~0U >> 1))` will not work.

Prerequisite
------------

This patch series requires mbedtls git repo to be added as a
subtree to the main U-Boot repo via:

$ git subtree add --prefix lib/mbedtls/external/mbedtls \
      https://github.com/Mbed-TLS/mbedtls.git \
      v3.6.0 --squash

Moreover, due to the Windows-style files from mbedtls git repo,
we need to convert the CRLF endings to LF and do a commit manually:

$ git add --renormalize .
$ git commit

Signed-off-by: Raymond Mao

include: linux: Remove duplicate newlines

2024-07-29T21:01:04+00:00

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut

include: kernel.h: port find_closest() from Linux

2023-03-30T19:09:59+00:00

The find_closest() macro can be used to find an element in a sorted
array that is closest to an input value. Bring in this macro from
Linux v6.3-rc1-2-g8ca09d5fa354.

Signed-off-by: Chris Packham 
Reviewed-by: Simon Glass

include: kernel.h: define SSIZE_MAX

2020-08-24T14:37:53+00:00

Define SSIZE_MAX, the largest value fitting into a variable of type
ssize_t.

Signed-off-by: Heinrich Schuchardt

common: Move ROUND() into kernel.h

2020-01-17T22:53:52+00:00

Move this macro in with all the other rounding macros.

Signed-off-by: Simon Glass

common: Move check_member() to kernel.h

2020-01-17T22:53:52+00:00

The kernel.h file has a number of useful macros including a few related
to structures. Move check_member() there too.

Signed-off-by: Simon Glass

include: kernel.h: include printk.h

2019-12-06T21:44:19+00:00

Adding "printk.h" will help improve portability from linux kernel
code (in my case, lib/asn1_decoder.c and others) where printf and
pr_* variant functions are used.

Signed-off-by: AKASHI Takahiro

fdt: Add INT32_MAX to kernel.h for libfdt

2019-11-05T01:15:32+00:00

Unfortunately libfdt needs this value now, which is present in the
stdint.h header. That file is just a placeholder in U-Boot and these sorts
of constants appear in the linux/kernel.h header instead.

To keep libfdt happy, add INT32_MAX too.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

linux/kernel.h: import DIV_ROUND_CLOSEST_ULL from Linux

2018-12-29T02:38:36+00:00

Copied from Linux v4.20-rc7.

Signed-off-by: Masahiro Yamada

Add UINT32_MAX and UINT64_MAX

2018-12-05T13:01:35+00:00

These constants are defined by stdint.h but not by kernel.h, which is
its stand-in in U-Boot. Add the definitions so that libraries which expect
stdint.h constants can work.

Signed-off-by: Simon Glass