user/sven/linux.git/scripts/checkpatch.pl, branch v6.7.9

Revert "checkpatch: Error out if deprecated RCU API used"

2023-09-13T20:27:15Z

The definition for single-argument kfree_rcu() has been removed, so that any further attempt to use it will result in a build error. Because of this build error, there is no longer any need for a special check in checkpatch.pl. Therefore, revert commit 1eacac3255495be7502d406e2ba5444fb5c3607c. Signed-off-by: Joel Fernandes (Google) Signed-off-by: Paul E. McKenney Signed-off-by: Frederic Weisbecker

Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-08-29T21:53:51Z

Pull non-MM updates from Andrew Morton: - An extensive rework of kexec and crash Kconfig from Eric DeVolder ("refactor Kconfig to consolidate KEXEC and CRASH options") - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a couple of macros to args.h") - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper commands") - vsprintf inclusion rationalization from Andy Shevchenko ("lib/vsprintf: Rework header inclusions") - Switch the handling of kdump from a udev scheme to in-kernel handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory hot un/plug") - Many singleton patches to various parts of the tree * tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits) document while_each_thread(), change first_tid() to use for_each_thread() drivers/char/mem.c: shrink character device's devlist[] array x86/crash: optimize CPU changes crash: change crash_prepare_elf64_headers() to for_each_possible_cpu() crash: hotplug support for kexec_load() x86/crash: add x86 crash hotplug support crash: memory and CPU hotplug sysfs attributes kexec: exclude elfcorehdr from the segment digest crash: add generic infrastructure for crash hotplug support crash: move a few code bits to setup support of crash hotplug kstrtox: consistently use _tolower() kill do_each_thread() nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse scripts/bloat-o-meter: count weak symbol sizes treewide: drop CONFIG_EMBEDDED lockdep: fix static memory detection even more lib/vsprintf: declare no_hash_pointers in sprintf.h lib/vsprintf: split out sprintf() and friends kernel/fork: stop playing lockless games for exe_file replacement adfs: delete unused "union adfs_dirtail" definition ...

checkpatch: reword long-line warning about commit-msg

2023-08-21T20:46:21Z

Reword the warning to complain about line length 1st, since thats whats actually tested. Link: https://lkml.kernel.org/r/20230808033019.21911-3-jim.cromie@gmail.com Cc: apw@canonical.com Cc: joe@perches.com Signed-off-by: Jim Cromie Signed-off-by: Andrew Morton

checkpatch: special case extern struct in .c

2023-08-21T20:46:21Z

"externs should be avoided in .c files" needs an exception for linker symbols, like those that mark the start, stop of many kernel sections. Since checkpatch already checks REALNAME to avoid looking at fragments changing vmlinux.lds.h, add a new else-if block to look at them instead. As a simple heuristic, treat all words (in the patch-line) as possible symbols, to screen later warnings. For my test case, the possible-symbols included BOUNDED_BY (a macro), which is extra, but not troublesome - these are just to screen WARNINGS that might be issued on later fragments (changing .c files) Where the WARN is issued, precede it with an else-if block to catch one common extern-in-c use case: "extern struct foo bar[]". Here we can at least issue a softer warning, after checking for a match with a maybe-linker-symbol parsed earlier from the patch. Though heuristic, it worked for my test-case, allowing both start__, stop__ $symbol's (wo the prefixes specifically named). I've coded it narrowly, it can be expanded later to cover any other expressions. It does require that the externs in .c's have the additions to vmlinux.lds.h in the same patch. And requires vmlinux.lds.h before .c fragments. Link: https://lkml.kernel.org/r/20230808033019.21911-2-jim.cromie@gmail.com Signed-off-by: Jim Cromie Cc: Joe Perches Signed-off-by: Andrew Morton

checkpatch: Complain about unexpected uses of RCU Tasks Trace

2023-07-24T21:52:16Z

RCU Tasks Trace is quite specialized, having been created specifically for sleepable BPF programs. Because it allows general blocking within readers, any new use of RCU Tasks Trace must take current use cases into account. Therefore, update checkpatch.pl to complain about use of any of the RCU Tasks Trace API members outside of BPF and outside of RCU itself. [ paulmck: Apply Joe Perches feedback. ] Cc: Andy Whitcroft (maintainer:CHECKPATCH) Cc: Joe Perches (maintainer:CHECKPATCH) Cc: Dwaipayan Ray (reviewer:CHECKPATCH) Cc: Lukas Bulwahn Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: John Fastabend Cc: Signed-off-by: Paul E. McKenney

Merge tag 'core_guards_for_6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue

2023-07-04T20:50:38Z

Pull scope-based resource management infrastructure from Peter Zijlstra: "These are the first few patches in the Scope-based Resource Management series that introduce the infrastructure but not any conversions as of yet. Adding the infrastructure now allows multiple people to start using them. Of note is that Sparse will need some work since it doesn't yet understand this attribute and might have decl-after-stmt issues" * tag 'core_guards_for_6.5_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue: kbuild: Drop -Wdeclaration-after-statement locking: Introduce __cleanup() based infrastructure apparmor: Free up __cleanup() name dmaengine: ioat: Free up __cleanup() name

locking: Introduce __cleanup() based infrastructure

2023-06-26T09:14:18Z

Use __attribute__((__cleanup__(func))) to build: - simple auto-release pointers using __free() - 'classes' with constructor and destructor semantics for scope-based resource management. - lock guards based on the above classes. Signed-off-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/20230612093537.614161713%40infradead.org

checkpatch: Check for 0-length and 1-element arrays

2023-06-05T22:31:12Z

Fake flexible arrays have been deprecated since last millennium. Proper C99 flexible arrays must be used throughout the kernel so CONFIG_FORTIFY_SOURCE and CONFIG_UBSAN_BOUNDS can provide proper array bounds checking. Cc: Andy Whitcroft Cc: Dwaipayan Ray Cc: Lukas Bulwahn Fixed-by: Joe Perches Signed-off-by: Kees Cook Acked-by: Gustavo A. R. Silva Acked-by: Joe Perches Link: https://lore.kernel.org/r/20230517204530.never.151-kees@kernel.org

checkpatch: Check for strcpy and strncpy too

2023-05-30T23:42:01Z

Warn about strcpy(), strncpy(), and strlcpy(). Suggest strscpy() and include pointers to the open KSPP issues for each, which has further details and replacement procedures. Cc: Andy Whitcroft Cc: Joe Perches Cc: Dwaipayan Ray Cc: Lukas Bulwahn Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20230517201349.never.582-kees@kernel.org

Merge tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2023-04-28T02:57:00Z

Pull non-MM updates from Andrew Morton: "Mainly singleton patches all over the place. Series of note are: - updates to scripts/gdb from Glenn Washburn - kexec cleanups from Bjorn Helgaas" * tag 'mm-nonmm-stable-2023-04-27-16-01' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (50 commits) mailmap: add entries for Paul Mackerras libgcc: add forward declarations for generic library routines mailmap: add entry for Oleksandr ocfs2: reduce ioctl stack usage fs/proc: add Kthread flag to /proc/$pid/status ia64: fix an addr to taddr in huge_pte_offset() checkpatch: introduce proper bindings license check epoll: rename global epmutex scripts/gdb: add GDB convenience functions $lx_dentry_name() and $lx_i_dentry() scripts/gdb: create linux/vfs.py for VFS related GDB helpers uapi/linux/const.h: prefer ISO-friendly __typeof__ delayacct: track delays from IRQ/SOFTIRQ scripts/gdb: timerlist: convert int chunks to str scripts/gdb: print interrupts scripts/gdb: raise error with reduced debugging information scripts/gdb: add a Radix Tree Parser lib/rbtree: use '+' instead of '|' for setting color. proc/stat: remove arch_idle_time() checkpatch: check for misuse of the link tags checkpatch: allow Closes tags with links ...