Merge branch 'master' of https://github.com/sysprog21/lkmpg
Proofread
Proofread
syscall-steal: Refine comment
Enforce consistent name scheme
Merge pull request #244 from keytouch/fix_syscall
Fix compilation due to syscall module name conflict
Fix compilation due to syscall module name conflict
syscall_steal: rename sys_call_table to fix compile error
sys_call_table is already declared in arch/x86/include/asm/syscall.h but of
cource not exported by the kernel.
before this commit, gcc complains as follows:
/usr/src/linux-headers-6.1.0-16-common/arch/x86/include/asm/syscall.h:21:29:
note: previous declaration of 'sys_call_table' with type 'long int (*
const[])(const struct pt_regs *)'
21 | extern const sys_call_ptr_t sys_call_table[];
sys_call_table is already declared in arch/x86/include/asm/syscall.h but of
cource not exported by the kernel.
before this commit, gcc complains as follows:
/usr/src/linux-headers-6.1.0-16-common/arch/x86/include/asm/syscall.h:21:29:
note: previous declaration of 'sys_call_table' with type 'long int (*
const[])(const struct pt_regs *)'
21 | extern const sys_call_ptr_t sys_call_table[];
syscall: rename module name to syscall_steal
In Debian, the name syscall conflicts with this patch:
in debian kernel source tree:
debian/patches/features/x86/x86-make-x32-syscall-support-conditional.patch
mailing list url:
https://lore.kernel.org/lkml/1415245982.3398.53.camel@decadent.org.uk/T/#u
which introduces a parameter named syscall.x32. So change our name.
In Debian, the name syscall conflicts with this patch:
in debian kernel source tree:
debian/patches/features/x86/x86-make-x32-syscall-support-conditional.patch
mailing list url:
https://lore.kernel.org/lkml/1415245982.3398.53.camel@decadent.org.uk/T/#u
which introduces a parameter named syscall.x32. So change our name.
Merge branch 'master' of https://github.com/sysprog21/lkmpg
Fixed Typo (#243)
Close #242
Close #242
Fix typo (#240)
Merge pull request #239 from mechanicalamit/sched_workqueue_patches
Replace schedule_work with queue_work
Replace schedule_work with queue_work
Replace schedule_work with queue_work
schedule_work adds work to global workqueue. In this example, we create a local workqueue. Use the local workqueue by calling queue_work(), instead of putting work on the global workqueue.
schedule_work adds work to global workqueue. In this example, we create a local workqueue. Use the local workqueue by calling queue_work(), instead of putting work on the global workqueue.
Merge pull request #238 from visitorckw/fix-grammar-error
Fix grammar
Fix grammar
Fix grammar
The verb 'suggest' is used with the gerund form.
The verb 'suggest' is used with the gerund form.
Merge pull request #237 from heartofrain/master
Revise the depiction of return type of proc_create().
Revise the depiction of return type of proc_create().
Revise the depiction of return type of proc_create().
Merge pull request #236 from mechanicalamit/lkmpgtex-tasklet
Change word in tasklet description
Change word in tasklet description
Change word in tasklet description
The word 'defator' is unable to be found in a lexicon. Change the word
'defator' with 'drawbacks' which should imply the negative meaning intended
in the sentence.
The word 'defator' is unable to be found in a lexicon. Change the word
'defator' with 'drawbacks' which should imply the negative meaning intended
in the sentence.
Merge pull request #235 from mechanicalamit/atomic-patches
Add newline to last pr_info to force dmesg to flush
Add newline to last pr_info to force dmesg to flush
Add newline to last pr_info to force dmesg to flush
dmesg only flushes when it encounter a newline. Without a newline, the line
is held in memory pending another printk. In this particular example
(example_atomic.c), the last pr_info in atomic_bitwise() prints when
another printk happens (either by another module, or __exit for this
module.
This can be confusing to new learner. This patch adds a newline to the last
pr_info forcing dmesg to print to the screen when the module is loaded.
dmesg only flushes when it encounter a newline. Without a newline, the line
is held in memory pending another printk. In this particular example
(example_atomic.c), the last pr_info in atomic_bitwise() prints when
another printk happens (either by another module, or __exit for this
module.
This can be confusing to new learner. This patch adds a newline to the last
pr_info forcing dmesg to print to the screen when the module is loaded.
Merge pull request #234 from mechanicalamit/completions-simplify
Simplify code by removal of outer struct encapsulating struct completions
Simplify code by removal of outer struct encapsulating struct completions
Simplify code by removal of outer struct
Two struct completion(s) are encapsulated within another 'struct machine'.
Simplify the code by removing the outer struct and let the struct
completion(s) be self-standing.
Update description in tex to match code.
Two struct completion(s) are encapsulated within another 'struct machine'.
Simplify the code by removing the outer struct and let the struct
completion(s) be self-standing.
Update description in tex to match code.
change layout for titlepage and contentoftable
add Improve attractiveness section
add Felix Lee to AuthorShip section
add Felix Lee to authors and fix LaTeX command in source file
upgrade all chapters in manual
upgrade introduction section to chapter
CI: Only perform extensive checks on source file changes
Exclude generated files
CI: Bump dependency versions
Explicitly mention 6.x kernels
Remove module * parameter from class_create() in chardev2.c (#228)
From v6.4, class_create() does not have module *
Same fix as commit 0addb868dc55 to chardev.c
From v6.4, class_create() does not have module *
Same fix as commit 0addb868dc55 to chardev.c
Merge pull request #226 from mechanicalamit/ioctl.c-patches
Correct name/location for ioctl-number.rst
Correct name/location for ioctl-number.rst
CI: Fix "unreplaced" warnings by using git source (#229)
Because of sparse-latest.tar.gz has not been updated since 06-Sep-2021,
we are encoutering an old bug, 0e1aae55e49c ("fix "unreplaced" warnings
caused by using typeof() on inline functions") [1], that has been fixed
in the newest version. So, let's switch to the git source tree [2]
instead of using sparse-latest.tar.gz [3].
[1] https://git.kernel.org/pub/scm/devel/sparse/sparse.git/commit/?id=0e1aae55e49cad7ea43848af5b58ff0f57e7af99
[2] git://git.kernel.org/pub/scm/devel/sparse/sparse.git
[3] http://www.kernel.org/pub/software/devel/sparse/dist/sparse-latest.tar.gz
Because of sparse-latest.tar.gz has not been updated since 06-Sep-2021,
we are encoutering an old bug, 0e1aae55e49c ("fix "unreplaced" warnings
caused by using typeof() on inline functions") [1], that has been fixed
in the newest version. So, let's switch to the git source tree [2]
instead of using sparse-latest.tar.gz [3].
[1] https://git.kernel.org/pub/scm/devel/sparse/sparse.git/commit/?id=0e1aae55e49cad7ea43848af5b58ff0f57e7af99
[2] git://git.kernel.org/pub/scm/devel/sparse/sparse.git
[3] http://www.kernel.org/pub/software/devel/sparse/dist/sparse-latest.tar.gz
Correct name/location for ioctl-number.rst
ioctl-number.rst in Documentation has been renamed and moved
See commits
- 049500715e7
- 08536105d93
ioctl-number.rst in Documentation has been renamed and moved
See commits
- 049500715e7
- 08536105d93
Merge pull request #225 from visitorckw/master
Fix typo and remove duplicated words
Fix typo and remove duplicated words
Fix typo
Remove duplicated words
Merge pull request #224 from fourcolor/master
Fix typo
Fix typo
Fix typo
Remove module * parameter from class_create() (#222)
From v6.4, class_create() does not have module *
See commit 11ba11 :
> driver core: class: remove module * from class_create()
>
> The module pointer in class_create() never actually did anything,
> and it shouldn't have been requred to be set as a parameter even
> if it did something. So just remove it and fix up all callers of the
> function in the kernel tree at the same time.
From v6.4, class_create() does not have module *
See commit 11ba11 :
> driver core: class: remove module * from class_create()
>
> The module pointer in class_create() never actually did anything,
> and it shouldn't have been requred to be set as a parameter even
> if it did something. So just remove it and fix up all callers of the
> function in the kernel tree at the same time.
Merge pull request #223 from visitorckw/master
Fix typo
Fix typo
Fix typo
Capitalized the first letter in a sentence.
Capitalized the first letter in a sentence.
Merge pull request #221 from visitorckw/master
Fix typo
Fix typo
Fix typo
Merge pull request #219 from eeeXun/archlinux
Update dependencies for Arch Linux
Update dependencies for Arch Linux
Update dependencies for Arch Linux
Refine contributor list
Proofread
Always use Debian GNU/Linux explicitly
Proofread
Update contributor list
Proofread
Update contributor list
Proofread
Proofread
Proofread
Merge pull request #218 from linD026/master
kbleds: Replace magic with driver_name
kbleds: Replace magic with driver_name
kbleds: Replace magic with driver_name
Since the commit 5052df99d3bc ("tty: remove TTY_DRIVER_MAGIC") [1],
the magic field no longer exists in the tty_driver. Instead of
printing the magic field, use the driver_name field.
[1] https://lore.kernel.org/linux-doc/20220907231109.htnfxzmr6wkuhn2v@tarta.nabijaczleweli.xyz/
Close #216
Close #217
Since the commit 5052df99d3bc ("tty: remove TTY_DRIVER_MAGIC") [1],
the magic field no longer exists in the tty_driver. Instead of
printing the magic field, use the driver_name field.
[1] https://lore.kernel.org/linux-doc/20220907231109.htnfxzmr6wkuhn2v@tarta.nabijaczleweli.xyz/
Close #216
Close #217
Merge pull request #213 from keytouch/master
procfs: Remove unnecessary cleanup on proc_create failure
procfs: Remove unnecessary cleanup on proc_create failure
procfs: Remove unnecessary cleanup on proc_create failure
Merge pull request #212 from tylerfanelli/dnf_notes
headers: Update header installation for Fedora
headers: Update header installation for Fedora
headers: Update header installation for Fedora
static_key: Include <linux/jump_label.h> (#210)
examples: Add missing __init/__exit (#209)
Close #207
Close #207
Merge pull request #208 from samuelerickson977/master
include linux/init.h in bottomhalf.c
include linux/init.h in bottomhalf.c
include linux/init.h in bottomhalf.c
Merge pull request #206 from ekangmonyet/master
Cleanup redundant workflow step, fix release body and timestamp
Cleanup redundant workflow step, fix release body and timestamp
Delete old release and retag latest commit
This ensures the latest commit message and timestamp can be correctly
included in the release.
This ensures the latest commit message and timestamp can be correctly
included in the release.
Revert "Delete existing release asset before releasing"
This reverts commit 7ee66c559ff12c254d04c65c54325acbb655133a.
This reverts commit 7ee66c559ff12c254d04c65c54325acbb655133a.
Merge pull request #200 from lyctw/static_key
Introduce static key in optimizations section
Introduce static key in optimizations section
Introduce static key in optimizations section
This patch introduces static key technique and adds a kernel module
to demostrate how to use static key to optimize an almost unlikely
branch, the module can interact with userspace thru a character device.
Signed-off-by: Peter Lin <peterlin@qilai.dev>
This patch introduces static key technique and adds a kernel module
to demostrate how to use static key to optimize an almost unlikely
branch, the module can interact with userspace thru a character device.
Signed-off-by: Peter Lin <peterlin@qilai.dev>
Merge pull request #202 from linD026/master
CI: Switch Smatch source code to GitHub mirror
CI: Switch Smatch source code to GitHub mirror
CI: Switch Smatch source code to GitHub mirror
Since the Smatch repository is unavailable recently [1], let's switch
to GitHub mirror, https://github.com/error27/smatch.git [2], instead
of using https://repo.or.cz/smatch.git.
[1] https://lore.kernel.org/all/Y1qf7w%2Fjo8FH5I8G@kadam/
[2] https://lore.kernel.org/all/20220810105926.GS3460@kadam/
Since the Smatch repository is unavailable recently [1], let's switch
to GitHub mirror, https://github.com/error27/smatch.git [2], instead
of using https://repo.or.cz/smatch.git.
[1] https://lore.kernel.org/all/Y1qf7w%2Fjo8FH5I8G@kadam/
[2] https://lore.kernel.org/all/20220810105926.GS3460@kadam/
Merge pull request #198 from linD026/master
Remove sleep_on family
Remove sleep_on family
Remove sleep_on family
Since the commit b8780c363d80 ("sched: remove sleep_on() and friends
"), the description about sleep_on is incorrect and the example code has
been fixed by replacing it with wait_event family. Let's also fix the
description to match the corrected code.
Since the commit b8780c363d80 ("sched: remove sleep_on() and friends
"), the description about sleep_on is incorrect and the example code has
been fixed by replacing it with wait_event family. Let's also fix the
description to match the corrected code.
Fix macOS prerequisites
Merge pull request #193 from linD026/master
procfs: Enforce Linux naming style
procfs: Enforce Linux naming style
procfs: Enforce Linux naming style
Merge pull request #189 from linD026/master
Improve the compatibility and fix the missing header
Improve the compatibility and fix the missing header
completion: Improve the compatibility with v5.17+
Since v5.17-rc1, particularly after the commit cead1855266 ("exit:
Rename complete_and_exit to kthread_complete_and_exit"),
complete_and_exit() is renamed to kthread_complete_and_exit().
Close #188
Since v5.17-rc1, particularly after the commit cead1855266 ("exit:
Rename complete_and_exit to kthread_complete_and_exit"),
complete_and_exit() is renamed to kthread_complete_and_exit().
Close #188
chardev2: Fix missing header for {get, put}_user
Merge pull request #187 from linD026/master
Relocate Archlinux code snippet to avoid confusion
Relocate Archlinux code snippet to avoid confusion
Relocate Archlinux code snippet to avoid confusion
Close #185
Close #185
Merge pull request #186 from ashevche/kernel.h
Discourage kernel.h usage and other header cleanups
Discourage kernel.h usage and other header cleanups
treewide: Replace kernel.h by printk.h
The kernel.h should be discouraged for use.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The kernel.h should be discouraged for use.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
treewide: Clean up the headers
The rule of thumb is to include the headers we are the direct user of.
In particular, if we need an atomic API, we include <linux/atomic.h>.
On the other hand we should not use headers for no reason. In particular,
if we are not doing any IRQ job, why is the <linux/irq.h> included?
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The rule of thumb is to include the headers we are the direct user of.
In particular, if we need an atomic API, we include <linux/atomic.h>.
On the other hand we should not use headers for no reason. In particular,
if we are not doing any IRQ job, why is the <linux/irq.h> included?
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
devicemodel: Remove duplicate owner assignment
platform_driver_register() macro already does the correct assignment for
the owner of the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
platform_driver_register() macro already does the correct assignment for
the owner of the driver.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Merge pull request #184 from linD026/master
syscall: Use openat() instead of open()
syscall: Use openat() instead of open()
syscall: Use openat() instead of open()
Since sys_open is deprecated and some architectures don't support it.
We switch the implementation to sys_openat.
Moreover, in some architectures like x86-64, the prototype of syscall,
for example, openat(), might have been changed to struct pt_regs [1]
but we cannot promise that so support the two types
(sys_openat and pt_regs).
Also, to prevent other untraced tasks print out the information, add
the uid checking in our_sys_openat().
[1] https://lore.kernel.org/lkml/20180405095307.3730-1-linux@dominikbrodowski.net/
Close #159
Since sys_open is deprecated and some architectures don't support it.
We switch the implementation to sys_openat.
Moreover, in some architectures like x86-64, the prototype of syscall,
for example, openat(), might have been changed to struct pt_regs [1]
but we cannot promise that so support the two types
(sys_openat and pt_regs).
Also, to prevent other untraced tasks print out the information, add
the uid checking in our_sys_openat().
[1] https://lore.kernel.org/lkml/20180405095307.3730-1-linux@dominikbrodowski.net/
Close #159
Merge pull request #183 from linD026/master
example/syscall: Fix typo and unmatch types
example/syscall: Fix typo and unmatch types
example/syscall: Fix typo and unmatch types
Merge pull request #182 from lyctw/master
Add error message when sha256 algorithm is not supported
Add error message when sha256 algorithm is not supported
Add error message when sha256 algorithm is not supported
It failed silently when crypto_alloc_tfm() failed, so add an error
message to inform the developer to enable sha256 algorithm support.
Signed-off-by: Yu Chien Peter Lin <peterlin.tw@pm.me>
It failed silently when crypto_alloc_tfm() failed, so add an error
message to inform the developer to enable sha256 algorithm support.
Signed-off-by: Yu Chien Peter Lin <peterlin.tw@pm.me>
Merge pull request #181 from lyctw/master
Fix typo in interrupt handlers section
Fix typo in interrupt handlers section
Fix typo in interrupt handlers section
%s/assembler/assembly language/
Signed-off-by: Yu Chien Peter Lin <peterlin.tw@pm.me>
%s/assembler/assembly language/
Signed-off-by: Yu Chien Peter Lin <peterlin.tw@pm.me>
CI: Bump validation host versioning
The CI is now running on Ubuntu 22.04-LTS along with gcc-11 and
clang-format-12 .
The CI is now running on Ubuntu 22.04-LTS along with gcc-11 and
clang-format-12 .
CI: Bump dependency versions