add forgoten folder
This commit is contained in:
@@ -7,4 +7,5 @@ compile_commands.json
|
||||
.config
|
||||
.config.*
|
||||
include/
|
||||
!scripts/include/
|
||||
*.o
|
||||
@@ -0,0 +1,357 @@
|
||||
Valid-License-Identifier: GPL-2.0
|
||||
Valid-License-Identifier: GPL-2.0-only
|
||||
Valid-License-Identifier: GPL-2.0+
|
||||
Valid-License-Identifier: GPL-2.0-or-later
|
||||
SPDX-URL: https://spdx.org/licenses/GPL-2.0.html
|
||||
Usage-Guide:
|
||||
To use this license in source code, put one of the following SPDX
|
||||
tag/value pairs into a comment according to the placement
|
||||
guidelines in the licensing rules documentation.
|
||||
For 'GNU General Public License (GPL) version 2 only' use:
|
||||
SPDX-License-Identifier: GPL-2.0
|
||||
or
|
||||
SPDX-License-Identifier: GPL-2.0-only
|
||||
For 'GNU General Public License (GPL) version 2 or any later version' use:
|
||||
SPDX-License-Identifier: GPL-2.0+
|
||||
or
|
||||
SPDX-License-Identifier: GPL-2.0-or-later
|
||||
License-Text:
|
||||
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 2, June 1991
|
||||
|
||||
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
|
||||
<https://fsf.org/>
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
|
||||
|
||||
Preamble
|
||||
|
||||
The licenses for most software are designed to take away your
|
||||
freedom to share and change it. By contrast, the GNU General Public
|
||||
License is intended to guarantee your freedom to share and change free
|
||||
software--to make sure the software is free for all its users. This
|
||||
General Public License applies to most of the Free Software
|
||||
Foundation's software and to any other program whose authors commit to
|
||||
using it. (Some other Free Software Foundation software is covered by
|
||||
the GNU Library General Public License instead.) You can apply it to
|
||||
your programs, too.
|
||||
|
||||
When we speak of free software, we are referring to freedom, not
|
||||
price. Our General Public Licenses are designed to make sure that you
|
||||
have the freedom to distribute copies of free software (and charge for
|
||||
this service if you wish), that you receive source code or can get it
|
||||
if you want it, that you can change the software or use pieces of it
|
||||
in new free programs; and that you know you can do these things.
|
||||
|
||||
To protect your rights, we need to make restrictions that forbid
|
||||
anyone to deny you these rights or to ask you to surrender the rights.
|
||||
These restrictions translate to certain responsibilities for you if you
|
||||
distribute copies of the software, or if you modify it.
|
||||
|
||||
For example, if you distribute copies of such a program, whether
|
||||
gratis or for a fee, you must give the recipients all the rights that
|
||||
you have. You must make sure that they, too, receive or can get the
|
||||
source code. And you must show them these terms so they know their
|
||||
rights.
|
||||
|
||||
We protect your rights with two steps: (1) copyright the software, and
|
||||
(2) offer you this license which gives you legal permission to copy,
|
||||
distribute and/or modify the software.
|
||||
|
||||
Also, for each author's protection and ours, we want to make certain
|
||||
that everyone understands that there is no warranty for this free
|
||||
software. If the software is modified by someone else and passed on, we
|
||||
want its recipients to know that what they have is not the original, so
|
||||
that any problems introduced by others will not reflect on the original
|
||||
authors' reputations.
|
||||
|
||||
Finally, any free program is threatened constantly by software
|
||||
patents. We wish to avoid the danger that redistributors of a free
|
||||
program will individually obtain patent licenses, in effect making the
|
||||
program proprietary. To prevent this, we have made it clear that any
|
||||
patent must be licensed for everyone's free use or not licensed at all.
|
||||
|
||||
The precise terms and conditions for copying, distribution and
|
||||
modification follow.
|
||||
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
|
||||
|
||||
0. This License applies to any program or other work which contains
|
||||
a notice placed by the copyright holder saying it may be distributed
|
||||
under the terms of this General Public License. The "Program", below,
|
||||
refers to any such program or work, and a "work based on the Program"
|
||||
means either the Program or any derivative work under copyright law:
|
||||
that is to say, a work containing the Program or a portion of it,
|
||||
either verbatim or with modifications and/or translated into another
|
||||
language. (Hereinafter, translation is included without limitation in
|
||||
the term "modification".) Each licensee is addressed as "you".
|
||||
|
||||
Activities other than copying, distribution and modification are not
|
||||
covered by this License; they are outside its scope. The act of
|
||||
running the Program is not restricted, and the output from the Program
|
||||
is covered only if its contents constitute a work based on the
|
||||
Program (independent of having been made by running the Program).
|
||||
Whether that is true depends on what the Program does.
|
||||
|
||||
1. You may copy and distribute verbatim copies of the Program's
|
||||
source code as you receive it, in any medium, provided that you
|
||||
conspicuously and appropriately publish on each copy an appropriate
|
||||
copyright notice and disclaimer of warranty; keep intact all the
|
||||
notices that refer to this License and to the absence of any warranty;
|
||||
and give any other recipients of the Program a copy of this License
|
||||
along with the Program.
|
||||
|
||||
You may charge a fee for the physical act of transferring a copy, and
|
||||
you may at your option offer warranty protection in exchange for a fee.
|
||||
|
||||
2. You may modify your copy or copies of the Program or any portion
|
||||
of it, thus forming a work based on the Program, and copy and
|
||||
distribute such modifications or work under the terms of Section 1
|
||||
above, provided that you also meet all of these conditions:
|
||||
|
||||
a) You must cause the modified files to carry prominent notices
|
||||
stating that you changed the files and the date of any change.
|
||||
|
||||
b) You must cause any work that you distribute or publish, that in
|
||||
whole or in part contains or is derived from the Program or any
|
||||
part thereof, to be licensed as a whole at no charge to all third
|
||||
parties under the terms of this License.
|
||||
|
||||
c) If the modified program normally reads commands interactively
|
||||
when run, you must cause it, when started running for such
|
||||
interactive use in the most ordinary way, to print or display an
|
||||
announcement including an appropriate copyright notice and a
|
||||
notice that there is no warranty (or else, saying that you provide
|
||||
a warranty) and that users may redistribute the program under
|
||||
these conditions, and telling the user how to view a copy of this
|
||||
License. (Exception: if the Program itself is interactive but
|
||||
does not normally print such an announcement, your work based on
|
||||
the Program is not required to print an announcement.)
|
||||
|
||||
These requirements apply to the modified work as a whole. If
|
||||
identifiable sections of that work are not derived from the Program,
|
||||
and can be reasonably considered independent and separate works in
|
||||
themselves, then this License, and its terms, do not apply to those
|
||||
sections when you distribute them as separate works. But when you
|
||||
distribute the same sections as part of a whole which is a work based
|
||||
on the Program, the distribution of the whole must be on the terms of
|
||||
this License, whose permissions for other licensees extend to the
|
||||
entire whole, and thus to each and every part regardless of who wrote it.
|
||||
|
||||
Thus, it is not the intent of this section to claim rights or contest
|
||||
your rights to work written entirely by you; rather, the intent is to
|
||||
exercise the right to control the distribution of derivative or
|
||||
collective works based on the Program.
|
||||
|
||||
In addition, mere aggregation of another work not based on the Program
|
||||
with the Program (or with a work based on the Program) on a volume of
|
||||
a storage or distribution medium does not bring the other work under
|
||||
the scope of this License.
|
||||
|
||||
3. You may copy and distribute the Program (or a work based on it,
|
||||
under Section 2) in object code or executable form under the terms of
|
||||
Sections 1 and 2 above provided that you also do one of the following:
|
||||
|
||||
a) Accompany it with the complete corresponding machine-readable
|
||||
source code, which must be distributed under the terms of Sections
|
||||
1 and 2 above on a medium customarily used for software interchange; or,
|
||||
|
||||
b) Accompany it with a written offer, valid for at least three
|
||||
years, to give any third party, for a charge no more than your
|
||||
cost of physically performing source distribution, a complete
|
||||
machine-readable copy of the corresponding source code, to be
|
||||
distributed under the terms of Sections 1 and 2 above on a medium
|
||||
customarily used for software interchange; or,
|
||||
|
||||
c) Accompany it with the information you received as to the offer
|
||||
to distribute corresponding source code. (This alternative is
|
||||
allowed only for noncommercial distribution and only if you
|
||||
received the program in object code or executable form with such
|
||||
an offer, in accord with Subsection b above.)
|
||||
|
||||
The source code for a work means the preferred form of the work for
|
||||
making modifications to it. For an executable work, complete source
|
||||
code means all the source code for all modules it contains, plus any
|
||||
associated interface definition files, plus the scripts used to
|
||||
control compilation and installation of the executable. However, as a
|
||||
special exception, the source code distributed need not include
|
||||
anything that is normally distributed (in either source or binary
|
||||
form) with the major components (compiler, kernel, and so on) of the
|
||||
operating system on which the executable runs, unless that component
|
||||
itself accompanies the executable.
|
||||
|
||||
If distribution of executable or object code is made by offering
|
||||
access to copy from a designated place, then offering equivalent
|
||||
access to copy the source code from the same place counts as
|
||||
distribution of the source code, even though third parties are not
|
||||
compelled to copy the source along with the object code.
|
||||
|
||||
4. You may not copy, modify, sublicense, or distribute the Program
|
||||
except as expressly provided under this License. Any attempt
|
||||
otherwise to copy, modify, sublicense or distribute the Program is
|
||||
void, and will automatically terminate your rights under this License.
|
||||
However, parties who have received copies, or rights, from you under
|
||||
this License will not have their licenses terminated so long as such
|
||||
parties remain in full compliance.
|
||||
|
||||
5. You are not required to accept this License, since you have not
|
||||
signed it. However, nothing else grants you permission to modify or
|
||||
distribute the Program or its derivative works. These actions are
|
||||
prohibited by law if you do not accept this License. Therefore, by
|
||||
modifying or distributing the Program (or any work based on the
|
||||
Program), you indicate your acceptance of this License to do so, and
|
||||
all its terms and conditions for copying, distributing or modifying
|
||||
the Program or works based on it.
|
||||
|
||||
6. Each time you redistribute the Program (or any work based on the
|
||||
Program), the recipient automatically receives a license from the
|
||||
original licensor to copy, distribute or modify the Program subject to
|
||||
these terms and conditions. You may not impose any further
|
||||
restrictions on the recipients' exercise of the rights granted herein.
|
||||
You are not responsible for enforcing compliance by third parties to
|
||||
this License.
|
||||
|
||||
7. If, as a consequence of a court judgment or allegation of patent
|
||||
infringement or for any other reason (not limited to patent issues),
|
||||
conditions are imposed on you (whether by court order, agreement or
|
||||
otherwise) that contradict the conditions of this License, they do not
|
||||
excuse you from the conditions of this License. If you cannot
|
||||
distribute so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you
|
||||
may not distribute the Program at all. For example, if a patent
|
||||
license would not permit royalty-free redistribution of the Program by
|
||||
all those who receive copies directly or indirectly through you, then
|
||||
the only way you could satisfy both it and this License would be to
|
||||
refrain entirely from distribution of the Program.
|
||||
|
||||
If any portion of this section is held invalid or unenforceable under
|
||||
any particular circumstance, the balance of the section is intended to
|
||||
apply and the section as a whole is intended to apply in other
|
||||
circumstances.
|
||||
|
||||
It is not the purpose of this section to induce you to infringe any
|
||||
patents or other property right claims or to contest validity of any
|
||||
such claims; this section has the sole purpose of protecting the
|
||||
integrity of the free software distribution system, which is
|
||||
implemented by public license practices. Many people have made
|
||||
generous contributions to the wide range of software distributed
|
||||
through that system in reliance on consistent application of that
|
||||
system; it is up to the author/donor to decide if he or she is willing
|
||||
to distribute software through any other system and a licensee cannot
|
||||
impose that choice.
|
||||
|
||||
This section is intended to make thoroughly clear what is believed to
|
||||
be a consequence of the rest of this License.
|
||||
|
||||
8. If the distribution and/or use of the Program is restricted in
|
||||
certain countries either by patents or by copyrighted interfaces, the
|
||||
original copyright holder who places the Program under this License
|
||||
may add an explicit geographical distribution limitation excluding
|
||||
those countries, so that distribution is permitted only in or among
|
||||
countries not thus excluded. In such case, this License incorporates
|
||||
the limitation as if written in the body of this License.
|
||||
|
||||
9. The Free Software Foundation may publish revised and/or new versions
|
||||
of the General Public License from time to time. Such new versions will
|
||||
be similar in spirit to the present version, but may differ in detail to
|
||||
address new problems or concerns.
|
||||
|
||||
Each version is given a distinguishing version number. If the Program
|
||||
specifies a version number of this License which applies to it and "any
|
||||
later version", you have the option of following the terms and conditions
|
||||
either of that version or of any later version published by the Free
|
||||
Software Foundation. If the Program does not specify a version number of
|
||||
this License, you may choose any version ever published by the Free Software
|
||||
Foundation.
|
||||
|
||||
10. If you wish to incorporate parts of the Program into other free
|
||||
programs whose distribution conditions are different, write to the author
|
||||
to ask for permission. For software which is copyrighted by the Free
|
||||
Software Foundation, write to the Free Software Foundation; we sometimes
|
||||
make exceptions for this. Our decision will be guided by the two goals
|
||||
of preserving the free status of all derivatives of our free software and
|
||||
of promoting the sharing and reuse of software generally.
|
||||
|
||||
NO WARRANTY
|
||||
|
||||
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
|
||||
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
|
||||
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
|
||||
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
|
||||
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
|
||||
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
|
||||
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
|
||||
REPAIR OR CORRECTION.
|
||||
|
||||
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
|
||||
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
|
||||
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
|
||||
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
|
||||
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
|
||||
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
|
||||
POSSIBILITY OF SUCH DAMAGES.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
How to Apply These Terms to Your New Programs
|
||||
|
||||
If you develop a new program, and you want it to be of the greatest
|
||||
possible use to the public, the best way to achieve this is to make it
|
||||
free software which everyone can redistribute and change under these terms.
|
||||
|
||||
To do so, attach the following notices to the program. It is safest
|
||||
to attach them to the start of each source file to most effectively
|
||||
convey the exclusion of warranty; and each file should have at least
|
||||
the "copyright" line and a pointer to where the full notice is found.
|
||||
|
||||
<one line to give the program's name and a brief idea of what it does.>
|
||||
Copyright (C) <year> <name of author>
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License along
|
||||
with this program; if not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
Also add information on how to contact you by electronic and paper mail.
|
||||
|
||||
If the program is interactive, make it output a short notice like this
|
||||
when it starts in an interactive mode:
|
||||
|
||||
Gnomovision version 69, Copyright (C) year name of author
|
||||
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
This is free software, and you are welcome to redistribute it
|
||||
under certain conditions; type `show c' for details.
|
||||
|
||||
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||
parts of the General Public License. Of course, the commands you use may
|
||||
be called something other than `show w' and `show c'; they could even be
|
||||
mouse-clicks or menu items--whatever suits your program.
|
||||
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1989
|
||||
Ty Coon, President of Vice
|
||||
|
||||
This General Public License does not permit incorporating your program into
|
||||
proprietary programs. If your program is a subroutine library, you may
|
||||
consider it more useful to permit linking proprietary applications with the
|
||||
library. If this is what you want to do, use the GNU Library General
|
||||
Public License instead of this License.
|
||||
@@ -0,0 +1 @@
|
||||
https://github.com/zen-kernel/zen-kernel that is fork of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
|
||||
@@ -0,0 +1,11 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
#ifndef ARRAY_SIZE_H
|
||||
#define ARRAY_SIZE_H
|
||||
|
||||
/**
|
||||
* ARRAY_SIZE - get the number of elements in array @arr
|
||||
* @arr: array to be sized
|
||||
*/
|
||||
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
|
||||
|
||||
#endif /* ARRAY_SIZE_H */
|
||||
@@ -0,0 +1,28 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
#ifndef HASH_H
|
||||
#define HASH_H
|
||||
|
||||
static inline unsigned int hash_str(const char *s)
|
||||
{
|
||||
/* fnv32 hash */
|
||||
unsigned int hash = 2166136261U;
|
||||
|
||||
for (; *s; s++)
|
||||
hash = (hash ^ *s) * 0x01000193;
|
||||
return hash;
|
||||
}
|
||||
|
||||
/* simplified version of functions from include/linux/hash.h */
|
||||
#define GOLDEN_RATIO_32 0x61C88647
|
||||
|
||||
static inline unsigned int hash_32(unsigned int val)
|
||||
{
|
||||
return 0x61C88647 * val;
|
||||
}
|
||||
|
||||
static inline unsigned int hash_ptr(const void *ptr)
|
||||
{
|
||||
return hash_32((unsigned int)(unsigned long)ptr);
|
||||
}
|
||||
|
||||
#endif /* HASH_H */
|
||||
@@ -0,0 +1,98 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
#ifndef HASHTABLE_H
|
||||
#define HASHTABLE_H
|
||||
|
||||
#include "array_size.h"
|
||||
#include "list.h"
|
||||
|
||||
#define HASH_SIZE(name) (ARRAY_SIZE(name))
|
||||
|
||||
#define HASHTABLE_DECLARE(name, size) struct hlist_head name[size]
|
||||
|
||||
#define HASHTABLE_DEFINE(name, size) \
|
||||
HASHTABLE_DECLARE(name, size) = \
|
||||
{ [0 ... ((size) - 1)] = HLIST_HEAD_INIT }
|
||||
|
||||
#define hash_head(table, key) (&(table)[(key) % HASH_SIZE(table)])
|
||||
|
||||
static inline void __hash_init(struct hlist_head *ht, unsigned int sz)
|
||||
{
|
||||
unsigned int i;
|
||||
|
||||
for (i = 0; i < sz; i++)
|
||||
INIT_HLIST_HEAD(&ht[i]);
|
||||
}
|
||||
|
||||
/**
|
||||
* hash_init - initialize a hash table
|
||||
* @table: hashtable to be initialized
|
||||
*
|
||||
* This has to be a macro since HASH_SIZE() will not work on pointers since
|
||||
* it calculates the size during preprocessing.
|
||||
*/
|
||||
#define hash_init(table) __hash_init(table, HASH_SIZE(table))
|
||||
|
||||
/**
|
||||
* hash_add - add an object to a hashtable
|
||||
* @table: hashtable to add to
|
||||
* @node: the &struct hlist_node of the object to be added
|
||||
* @key: the key of the object to be added
|
||||
*/
|
||||
#define hash_add(table, node, key) \
|
||||
hlist_add_head(node, hash_head(table, key))
|
||||
|
||||
/**
|
||||
* hash_del - remove an object from a hashtable
|
||||
* @node: &struct hlist_node of the object to remove
|
||||
*/
|
||||
static inline void hash_del(struct hlist_node *node)
|
||||
{
|
||||
hlist_del_init(node);
|
||||
}
|
||||
|
||||
/**
|
||||
* hash_for_each - iterate over a hashtable
|
||||
* @table: hashtable to iterate
|
||||
* @obj: the type * to use as a loop cursor for each entry
|
||||
* @member: the name of the hlist_node within the struct
|
||||
*/
|
||||
#define hash_for_each(table, obj, member) \
|
||||
for (int _bkt = 0; _bkt < HASH_SIZE(table); _bkt++) \
|
||||
hlist_for_each_entry(obj, &table[_bkt], member)
|
||||
|
||||
/**
|
||||
* hash_for_each_safe - iterate over a hashtable safe against removal of
|
||||
* hash entry
|
||||
* @table: hashtable to iterate
|
||||
* @obj: the type * to use as a loop cursor for each entry
|
||||
* @tmp: a &struct hlist_node used for temporary storage
|
||||
* @member: the name of the hlist_node within the struct
|
||||
*/
|
||||
#define hash_for_each_safe(table, obj, tmp, member) \
|
||||
for (int _bkt = 0; _bkt < HASH_SIZE(table); _bkt++) \
|
||||
hlist_for_each_entry_safe(obj, tmp, &table[_bkt], member)
|
||||
|
||||
/**
|
||||
* hash_for_each_possible - iterate over all possible objects hashing to the
|
||||
* same bucket
|
||||
* @table: hashtable to iterate
|
||||
* @obj: the type * to use as a loop cursor for each entry
|
||||
* @member: the name of the hlist_node within the struct
|
||||
* @key: the key of the objects to iterate over
|
||||
*/
|
||||
#define hash_for_each_possible(table, obj, member, key) \
|
||||
hlist_for_each_entry(obj, hash_head(table, key), member)
|
||||
|
||||
/**
|
||||
* hash_for_each_possible_safe - iterate over all possible objects hashing to the
|
||||
* same bucket safe against removals
|
||||
* @table: hashtable to iterate
|
||||
* @obj: the type * to use as a loop cursor for each entry
|
||||
* @tmp: a &struct hlist_node used for temporary storage
|
||||
* @member: the name of the hlist_node within the struct
|
||||
* @key: the key of the objects to iterate over
|
||||
*/
|
||||
#define hash_for_each_possible_safe(table, obj, tmp, member, key) \
|
||||
hlist_for_each_entry_safe(obj, tmp, hash_head(table, key), member)
|
||||
|
||||
#endif /* HASHTABLE_H */
|
||||
@@ -0,0 +1,428 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
#ifndef LIST_H
|
||||
#define LIST_H
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
#include "list_types.h"
|
||||
|
||||
/* Are two types/vars the same type (ignoring qualifiers)? */
|
||||
#define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
|
||||
|
||||
/**
|
||||
* container_of - cast a member of a structure out to the containing structure
|
||||
* @ptr: the pointer to the member.
|
||||
* @type: the type of the container struct this is embedded in.
|
||||
* @member: the name of the member within the struct.
|
||||
*
|
||||
*/
|
||||
#define container_of(ptr, type, member) ({ \
|
||||
void *__mptr = (void *)(ptr); \
|
||||
_Static_assert(__same_type(*(ptr), ((type *)0)->member) || \
|
||||
__same_type(*(ptr), void), \
|
||||
"pointer type mismatch in container_of()"); \
|
||||
((type *)(__mptr - offsetof(type, member))); })
|
||||
|
||||
#define LIST_POISON1 ((void *) 0x100)
|
||||
#define LIST_POISON2 ((void *) 0x122)
|
||||
|
||||
/*
|
||||
* Circular doubly linked list implementation.
|
||||
*
|
||||
* Some of the internal functions ("__xxx") are useful when
|
||||
* manipulating whole lists rather than single entries, as
|
||||
* sometimes we already know the next/prev entries and we can
|
||||
* generate better code by using them directly rather than
|
||||
* using the generic single-entry routines.
|
||||
*/
|
||||
|
||||
#define LIST_HEAD_INIT(name) { &(name), &(name) }
|
||||
|
||||
#define LIST_HEAD(name) \
|
||||
struct list_head name = LIST_HEAD_INIT(name)
|
||||
|
||||
/**
|
||||
* INIT_LIST_HEAD - Initialize a list_head structure
|
||||
* @list: list_head structure to be initialized.
|
||||
*
|
||||
* Initializes the list_head to point to itself. If it is a list header,
|
||||
* the result is an empty list.
|
||||
*/
|
||||
static inline void INIT_LIST_HEAD(struct list_head *list)
|
||||
{
|
||||
list->next = list;
|
||||
list->prev = list;
|
||||
}
|
||||
|
||||
/*
|
||||
* Insert a new entry between two known consecutive entries.
|
||||
*
|
||||
* This is only for internal list manipulation where we know
|
||||
* the prev/next entries already!
|
||||
*/
|
||||
static inline void __list_add(struct list_head *new,
|
||||
struct list_head *prev,
|
||||
struct list_head *next)
|
||||
{
|
||||
next->prev = new;
|
||||
new->next = next;
|
||||
new->prev = prev;
|
||||
prev->next = new;
|
||||
}
|
||||
|
||||
/**
|
||||
* list_add - add a new entry
|
||||
* @new: new entry to be added
|
||||
* @head: list head to add it after
|
||||
*
|
||||
* Insert a new entry after the specified head.
|
||||
* This is good for implementing stacks.
|
||||
*/
|
||||
static inline void list_add(struct list_head *new, struct list_head *head)
|
||||
{
|
||||
__list_add(new, head, head->next);
|
||||
}
|
||||
|
||||
/**
|
||||
* list_add_tail - add a new entry
|
||||
* @new: new entry to be added
|
||||
* @head: list head to add it before
|
||||
*
|
||||
* Insert a new entry before the specified head.
|
||||
* This is useful for implementing queues.
|
||||
*/
|
||||
static inline void list_add_tail(struct list_head *new, struct list_head *head)
|
||||
{
|
||||
__list_add(new, head->prev, head);
|
||||
}
|
||||
|
||||
/*
|
||||
* Delete a list entry by making the prev/next entries
|
||||
* point to each other.
|
||||
*
|
||||
* This is only for internal list manipulation where we know
|
||||
* the prev/next entries already!
|
||||
*/
|
||||
static inline void __list_del(struct list_head *prev, struct list_head *next)
|
||||
{
|
||||
next->prev = prev;
|
||||
prev->next = next;
|
||||
}
|
||||
|
||||
static inline void __list_del_entry(struct list_head *entry)
|
||||
{
|
||||
__list_del(entry->prev, entry->next);
|
||||
}
|
||||
|
||||
/**
|
||||
* list_del - deletes entry from list.
|
||||
* @entry: the element to delete from the list.
|
||||
* Note: list_empty() on entry does not return true after this, the entry is
|
||||
* in an undefined state.
|
||||
*/
|
||||
static inline void list_del(struct list_head *entry)
|
||||
{
|
||||
__list_del_entry(entry);
|
||||
entry->next = LIST_POISON1;
|
||||
entry->prev = LIST_POISON2;
|
||||
}
|
||||
|
||||
/**
|
||||
* list_replace - replace old entry by new one
|
||||
* @old : the element to be replaced
|
||||
* @new : the new element to insert
|
||||
*
|
||||
* If @old was empty, it will be overwritten.
|
||||
*/
|
||||
static inline void list_replace(struct list_head *old,
|
||||
struct list_head *new)
|
||||
{
|
||||
new->next = old->next;
|
||||
new->next->prev = new;
|
||||
new->prev = old->prev;
|
||||
new->prev->next = new;
|
||||
}
|
||||
|
||||
/**
|
||||
* list_replace_init - replace old entry by new one and initialize the old one
|
||||
* @old : the element to be replaced
|
||||
* @new : the new element to insert
|
||||
*
|
||||
* If @old was empty, it will be overwritten.
|
||||
*/
|
||||
static inline void list_replace_init(struct list_head *old,
|
||||
struct list_head *new)
|
||||
{
|
||||
list_replace(old, new);
|
||||
INIT_LIST_HEAD(old);
|
||||
}
|
||||
|
||||
/**
|
||||
* list_move - delete from one list and add as another's head
|
||||
* @list: the entry to move
|
||||
* @head: the head that will precede our entry
|
||||
*/
|
||||
static inline void list_move(struct list_head *list, struct list_head *head)
|
||||
{
|
||||
__list_del_entry(list);
|
||||
list_add(list, head);
|
||||
}
|
||||
|
||||
/**
|
||||
* list_move_tail - delete from one list and add as another's tail
|
||||
* @list: the entry to move
|
||||
* @head: the head that will follow our entry
|
||||
*/
|
||||
static inline void list_move_tail(struct list_head *list,
|
||||
struct list_head *head)
|
||||
{
|
||||
__list_del_entry(list);
|
||||
list_add_tail(list, head);
|
||||
}
|
||||
|
||||
/**
|
||||
* list_is_first -- tests whether @list is the first entry in list @head
|
||||
* @list: the entry to test
|
||||
* @head: the head of the list
|
||||
*/
|
||||
static inline int list_is_first(const struct list_head *list, const struct list_head *head)
|
||||
{
|
||||
return list->prev == head;
|
||||
}
|
||||
|
||||
/**
|
||||
* list_is_last - tests whether @list is the last entry in list @head
|
||||
* @list: the entry to test
|
||||
* @head: the head of the list
|
||||
*/
|
||||
static inline int list_is_last(const struct list_head *list, const struct list_head *head)
|
||||
{
|
||||
return list->next == head;
|
||||
}
|
||||
|
||||
/**
|
||||
* list_is_head - tests whether @list is the list @head
|
||||
* @list: the entry to test
|
||||
* @head: the head of the list
|
||||
*/
|
||||
static inline int list_is_head(const struct list_head *list, const struct list_head *head)
|
||||
{
|
||||
return list == head;
|
||||
}
|
||||
|
||||
/**
|
||||
* list_empty - tests whether a list is empty
|
||||
* @head: the list to test.
|
||||
*/
|
||||
static inline int list_empty(const struct list_head *head)
|
||||
{
|
||||
return head->next == head;
|
||||
}
|
||||
|
||||
/**
|
||||
* list_entry - get the struct for this entry
|
||||
* @ptr: the &struct list_head pointer.
|
||||
* @type: the type of the struct this is embedded in.
|
||||
* @member: the name of the list_head within the struct.
|
||||
*/
|
||||
#define list_entry(ptr, type, member) \
|
||||
container_of(ptr, type, member)
|
||||
|
||||
/**
|
||||
* list_first_entry - get the first element from a list
|
||||
* @ptr: the list head to take the element from.
|
||||
* @type: the type of the struct this is embedded in.
|
||||
* @member: the name of the list_head within the struct.
|
||||
*
|
||||
* Note, that list is expected to be not empty.
|
||||
*/
|
||||
#define list_first_entry(ptr, type, member) \
|
||||
list_entry((ptr)->next, type, member)
|
||||
|
||||
/**
|
||||
* list_last_entry - get the last element from a list
|
||||
* @ptr: the list head to take the element from.
|
||||
* @type: the type of the struct this is embedded in.
|
||||
* @member: the name of the list_head within the struct.
|
||||
*
|
||||
* Note, that list is expected to be not empty.
|
||||
*/
|
||||
#define list_last_entry(ptr, type, member) \
|
||||
list_entry((ptr)->prev, type, member)
|
||||
|
||||
/**
|
||||
* list_next_entry - get the next element in list
|
||||
* @pos: the type * to cursor
|
||||
* @member: the name of the list_head within the struct.
|
||||
*/
|
||||
#define list_next_entry(pos, member) \
|
||||
list_entry((pos)->member.next, typeof(*(pos)), member)
|
||||
|
||||
/**
|
||||
* list_prev_entry - get the prev element in list
|
||||
* @pos: the type * to cursor
|
||||
* @member: the name of the list_head within the struct.
|
||||
*/
|
||||
#define list_prev_entry(pos, member) \
|
||||
list_entry((pos)->member.prev, typeof(*(pos)), member)
|
||||
|
||||
/**
|
||||
* list_entry_is_head - test if the entry points to the head of the list
|
||||
* @pos: the type * to cursor
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_head within the struct.
|
||||
*/
|
||||
#define list_entry_is_head(pos, head, member) \
|
||||
(&pos->member == (head))
|
||||
|
||||
/**
|
||||
* list_for_each_entry - iterate over list of given type
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_head within the struct.
|
||||
*/
|
||||
#define list_for_each_entry(pos, head, member) \
|
||||
for (pos = list_first_entry(head, typeof(*pos), member); \
|
||||
!list_entry_is_head(pos, head, member); \
|
||||
pos = list_next_entry(pos, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_reverse - iterate backwards over list of given type.
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_head within the struct.
|
||||
*/
|
||||
#define list_for_each_entry_reverse(pos, head, member) \
|
||||
for (pos = list_last_entry(head, typeof(*pos), member); \
|
||||
!list_entry_is_head(pos, head, member); \
|
||||
pos = list_prev_entry(pos, member))
|
||||
|
||||
/**
|
||||
* list_for_each_entry_safe - iterate over list of given type. Safe against removal of list entry
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @n: another type * to use as temporary storage
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the list_head within the struct.
|
||||
*/
|
||||
#define list_for_each_entry_safe(pos, n, head, member) \
|
||||
for (pos = list_first_entry(head, typeof(*pos), member), \
|
||||
n = list_next_entry(pos, member); \
|
||||
!list_entry_is_head(pos, head, member); \
|
||||
pos = n, n = list_next_entry(n, member))
|
||||
|
||||
/*
|
||||
* Double linked lists with a single pointer list head.
|
||||
* Mostly useful for hash tables where the two pointer list head is
|
||||
* too wasteful.
|
||||
* You lose the ability to access the tail in O(1).
|
||||
*/
|
||||
|
||||
#define HLIST_HEAD_INIT { .first = NULL }
|
||||
#define INIT_HLIST_HEAD(ptr) ((ptr)->first = NULL)
|
||||
static inline void INIT_HLIST_NODE(struct hlist_node *h)
|
||||
{
|
||||
h->next = NULL;
|
||||
h->pprev = NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* hlist_unhashed - Has node been removed from list and reinitialized?
|
||||
* @h: Node to be checked
|
||||
*
|
||||
* Not that not all removal functions will leave a node in unhashed
|
||||
* state. For example, hlist_nulls_del_init_rcu() does leave the
|
||||
* node in unhashed state, but hlist_nulls_del() does not.
|
||||
*/
|
||||
static inline int hlist_unhashed(const struct hlist_node *h)
|
||||
{
|
||||
return !h->pprev;
|
||||
}
|
||||
|
||||
static inline void __hlist_del(struct hlist_node *n)
|
||||
{
|
||||
struct hlist_node *next = n->next;
|
||||
struct hlist_node **pprev = n->pprev;
|
||||
|
||||
*pprev = next;
|
||||
if (next)
|
||||
next->pprev = pprev;
|
||||
}
|
||||
|
||||
/**
|
||||
* hlist_del - Delete the specified hlist_node from its list
|
||||
* @n: Node to delete.
|
||||
*
|
||||
* Note that this function leaves the node in hashed state. Use
|
||||
* hlist_del_init() or similar instead to unhash @n.
|
||||
*/
|
||||
static inline void hlist_del(struct hlist_node *n)
|
||||
{
|
||||
__hlist_del(n);
|
||||
n->next = LIST_POISON1;
|
||||
n->pprev = LIST_POISON2;
|
||||
}
|
||||
|
||||
/**
|
||||
* hlist_del_init - Delete the specified hlist_node from its list and initialize
|
||||
* @n: Node to delete.
|
||||
*
|
||||
* Note that this function leaves the node in unhashed state.
|
||||
*/
|
||||
static inline void hlist_del_init(struct hlist_node *n)
|
||||
{
|
||||
if (!hlist_unhashed(n)) {
|
||||
__hlist_del(n);
|
||||
INIT_HLIST_NODE(n);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* hlist_add_head - add a new entry at the beginning of the hlist
|
||||
* @n: new entry to be added
|
||||
* @h: hlist head to add it after
|
||||
*
|
||||
* Insert a new entry after the specified head.
|
||||
* This is good for implementing stacks.
|
||||
*/
|
||||
static inline void hlist_add_head(struct hlist_node *n, struct hlist_head *h)
|
||||
{
|
||||
struct hlist_node *first = h->first;
|
||||
|
||||
n->next = first;
|
||||
if (first)
|
||||
first->pprev = &n->next;
|
||||
h->first = n;
|
||||
n->pprev = &h->first;
|
||||
}
|
||||
|
||||
#define hlist_entry(ptr, type, member) container_of(ptr, type, member)
|
||||
|
||||
#define hlist_entry_safe(ptr, type, member) \
|
||||
({ typeof(ptr) ____ptr = (ptr); \
|
||||
____ptr ? hlist_entry(____ptr, type, member) : NULL; \
|
||||
})
|
||||
|
||||
/**
|
||||
* hlist_for_each_entry - iterate over list of given type
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the hlist_node within the struct.
|
||||
*/
|
||||
#define hlist_for_each_entry(pos, head, member) \
|
||||
for (pos = hlist_entry_safe((head)->first, typeof(*(pos)), member);\
|
||||
pos; \
|
||||
pos = hlist_entry_safe((pos)->member.next, typeof(*(pos)), member))
|
||||
|
||||
/**
|
||||
* hlist_for_each_entry_safe - iterate over list of given type safe against removal of list entry
|
||||
* @pos: the type * to use as a loop cursor.
|
||||
* @n: a &struct hlist_node to use as temporary storage
|
||||
* @head: the head for your list.
|
||||
* @member: the name of the hlist_node within the struct.
|
||||
*/
|
||||
#define hlist_for_each_entry_safe(pos, n, head, member) \
|
||||
for (pos = hlist_entry_safe((head)->first, typeof(*pos), member);\
|
||||
pos && ({ n = pos->member.next; 1; }); \
|
||||
pos = hlist_entry_safe(n, typeof(*pos), member))
|
||||
|
||||
#endif /* LIST_H */
|
||||
@@ -0,0 +1,17 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
#ifndef LIST_TYPES_H
|
||||
#define LIST_TYPES_H
|
||||
|
||||
struct list_head {
|
||||
struct list_head *next, *prev;
|
||||
};
|
||||
|
||||
struct hlist_head {
|
||||
struct hlist_node *first;
|
||||
};
|
||||
|
||||
struct hlist_node {
|
||||
struct hlist_node *next, **pprev;
|
||||
};
|
||||
|
||||
#endif /* LIST_TYPES_H */
|
||||
@@ -0,0 +1,53 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0-only */
|
||||
|
||||
#ifndef XALLOC_H
|
||||
#define XALLOC_H
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
static inline void *xmalloc(size_t size)
|
||||
{
|
||||
void *p = malloc(size);
|
||||
|
||||
if (!p)
|
||||
exit(1);
|
||||
return p;
|
||||
}
|
||||
|
||||
static inline void *xcalloc(size_t nmemb, size_t size)
|
||||
{
|
||||
void *p = calloc(nmemb, size);
|
||||
|
||||
if (!p)
|
||||
exit(1);
|
||||
return p;
|
||||
}
|
||||
|
||||
static inline void *xrealloc(void *p, size_t size)
|
||||
{
|
||||
p = realloc(p, size);
|
||||
if (!p)
|
||||
exit(1);
|
||||
return p;
|
||||
}
|
||||
|
||||
static inline char *xstrdup(const char *s)
|
||||
{
|
||||
char *p = strdup(s);
|
||||
|
||||
if (!p)
|
||||
exit(1);
|
||||
return p;
|
||||
}
|
||||
|
||||
static inline char *xstrndup(const char *s, size_t n)
|
||||
{
|
||||
char *p = strndup(s, n);
|
||||
|
||||
if (!p)
|
||||
exit(1);
|
||||
return p;
|
||||
}
|
||||
|
||||
#endif /* XALLOC_H */
|
||||
Reference in New Issue
Block a user