kernel/linux.git/scripts/coccinelle/misc, branch v7.3-rc1

coccinelle: misc: struct_size: drop unneeded parentheses

2026-08-23T20:12:10+00:00

The outer parentheses and the single-branch disjunction don't matter when just matching and reporting a line. Eliminating them reduces the complexity of the pattern to match and gives a performance improvement in the non-patch cases, like the previous minmax change. Signed-off-by: Sang-Heon Jeon Signed-off-by: Julia Lawall

coccinelle: misc: minmax: avoid unhelpful isomorphisms

2026-08-23T20:12:10+00:00

Avoid isomorphisms that introduce comparisons with 0 that do not occur in code. Signed-off-by: Julia Lawall

coccinelle: misc: minmax: check for the presence of if cases

2026-08-23T20:12:10+00:00

As done previously for the ternary command, check that a file contains the min or max if pattern before applying the minif and maxif rules. Signed-off-by: Julia Lawall

coccinelle: misc: minmax: drop unneeded parentheses

2026-08-23T20:12:09+00:00

The outer parentheses don't matter when just matching an returning a line. Eliminating them reduces the complexity of the pattern to match and gives a small performance improvement in the non-patch cases. Signed-off-by: Julia Lawall

coccinelle: misc: minmax: improve performance when no candidate exists

2026-08-23T20:12:09+00:00

The rules that report an opencoded min() or max() search every function body, even when the file contains nothing to find. To avoid this, collect the candidates first and run the search only when one exists. A candidate is any conditional expression whose condition is a comparison. Every opencoded min() or max() is also a candidate, so the same opportunities are reported as before and the output does not change. A report-mode run over every .c file in the tree produces identical output. Signed-off-by: Sang-Heon Jeon Signed-off-by: Julia Lawall

Merge tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-10-03T01:44:54+00:00

Pull non-MM updates from Andrew Morton: - "ida: Remove the ida_simple_xxx() API" from Christophe Jaillet completes the removal of this legacy IDR API - "panic: introduce panic status function family" from Jinchao Wang provides a number of cleanups to the panic code and its various helpers, which were rather ad-hoc and scattered all over the place - "tools/delaytop: implement real-time keyboard interaction support" from Fan Yu adds a few nice user-facing usability changes to the delaytop monitoring tool - "efi: Fix EFI boot with kexec handover (KHO)" from Evangelos Petrongonas fixes a panic which was happening with the combination of EFI and KHO - "Squashfs: performance improvement and a sanity check" from Phillip Lougher teaches squashfs's lseek() about SEEK_DATA/SEEK_HOLE. A mere 150x speedup was measured for a well-chosen microbenchmark - plus another 50-odd singleton patches all over the place * tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (75 commits) Squashfs: reject negative file sizes in squashfs_read_inode() kallsyms: use kmalloc_array() instead of kmalloc() MAINTAINERS: update Sibi Sankar's email address Squashfs: add SEEK_DATA/SEEK_HOLE support Squashfs: add additional inode sanity checking lib/genalloc: fix device leak in of_gen_pool_get() panic: remove CONFIG_PANIC_ON_OOPS_VALUE ocfs2: fix double free in user_cluster_connect() checkpatch: suppress strscpy warnings for userspace tools cramfs: fix incorrect physical page address calculation kernel: prevent prctl(PR_SET_PDEATHSIG) from racing with parent process exit Squashfs: fix uninit-value in squashfs_get_parent kho: only fill kimage if KHO is finalized ocfs2: avoid extra calls to strlen() after ocfs2_sprintf_system_inode_name() kernel/sys.c: fix the racy usage of task_lock(tsk->group_leader) in sys_prlimit64() paths sched/task.h: fix the wrong comment on task_lock() nesting with tasklist_lock coccinelle: platform_no_drv_owner: handle also built-in drivers coccinelle: of_table: handle SPI device ID tables lib/decompress: use designated initializers for struct compress_format efi: support booting with kexec handover (KHO) ...

scripts/coccinelle: Find PTR_ERR() to %pe candidates

2025-09-26T19:26:41+00:00

Add a new Coccinelle script to identify places where PTR_ERR() is used in print functions and suggest using the %pe format specifier instead. For printing error pointers (i.e., a pointer for which IS_ERR() is true) %pe will print a symbolic error name (e.g,. -EINVAL), opposed to the raw errno (e.g,. -22) produced by PTR_ERR(). It also makes the code cleaner by saving a redundant call to PTR_ERR(). The script supports context, report, and org modes. Example transformation: printk("Error: %ld\n", PTR_ERR(ptr)); // Before printk("Error: %pe\n", ptr); // After Signed-off-by: Gal Pressman Reviewed-by: Alexei Lazar Signed-off-by: Tariq Toukan Reviewed-by: Simon Horman Link: https://patch.msgid.link/1758192227-701925-2-git-send-email-tariqt@nvidia.com Signed-off-by: Jakub Kicinski

coccinelle: of_table: handle SPI device ID tables

2025-09-23T03:10:59+00:00

'struct spi_device_id' tables also need to be NULL terminated. Link: https://lkml.kernel.org/r/20250911193354.56262-2-krzysztof.kozlowski@linaro.org Signed-off-by: Krzysztof Kozlowski Cc: Julia Lawall Cc: Nathan Chancellor Cc: Nicolas Palix Signed-off-by: Andrew Morton

coccinelle: misc: secs_to_jiffies: implement context and report modes

2025-07-20T02:08:25+00:00

As requested by Ricardo and Jakub, implement report and context modes for the secs_to_jiffies Coccinelle script. While here, add the option to look for opportunities to use secs_to_jiffies() in headers. Link: https://lkml.kernel.org/r/20250703225145.152288-1-eahariha@linux.microsoft.com Signed-off-by: Easwar Hariharan Closes: https://lore.kernel.org/all/20250129-secs_to_jiffles-v1-1-35a5e16b9f03@chromium.org/ Closes: https://lore.kernel.org/all/20250221162107.409ae333@kernel.org/ Tested-by: Ricardo Ribalda Cc: Julia Lawall Cc: Nicolas Palix Cc: Jakub Kicinski Cc: Ricardo Ribalda Signed-off-by: Andrew Morton

Merge tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-04-01T17:06:52+00:00

Pull non-MM updates from Andrew Morton: - The series "powerpc/crash: use generic crashkernel reservation" from Sourabh Jain changes powerpc's kexec code to use more of the generic layers. - The series "get_maintainer: report subsystem status separately" from Vlastimil Babka makes some long-requested improvements to the get_maintainer output. - The series "ucount: Simplify refcounting with rcuref_t" from Sebastian Siewior cleans up and optimizing the refcounting in the ucount code. - The series "reboot: support runtime configuration of emergency hw_protection action" from Ahmad Fatoum improves the ability for a driver to perform an emergency system shutdown or reboot. - The series "Converge on using secs_to_jiffies() part two" from Easwar Hariharan performs further migrations from msecs_to_jiffies() to secs_to_jiffies(). - The series "lib/interval_tree: add some test cases and cleanup" from Wei Yang permits more userspace testing of kernel library code, adds some more tests and performs some cleanups. - The series "hung_task: Dump the blocking task stacktrace" from Masami Hiramatsu arranges for the hung_task detector to dump the stack of the blocking task and not just that of the blocked task. - The series "resource: Split and use DEFINE_RES*() macros" from Andy Shevchenko provides some cleanups to the resource definition macros. - Plus the usual shower of singleton patches - please see the individual changelogs for details. * tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits) mailmap: consolidate email addresses of Alexander Sverdlin fs/procfs: fix the comment above proc_pid_wchan() relay: use kasprintf() instead of fixed buffer formatting resource: replace open coded variant of DEFINE_RES() resource: replace open coded variants of DEFINE_RES_*_NAMED() resource: replace open coded variant of DEFINE_RES_NAMED_DESC() resource: split DEFINE_RES_NAMED_DESC() out of DEFINE_RES_NAMED() samples: add hung_task detector mutex blocking sample hung_task: show the blocker task if the task is hung on mutex kexec_core: accept unaccepted kexec segments' destination addresses watchdog/perf: optimize bytes copied and remove manual NUL-termination lib/interval_tree: fix the comment of interval_tree_span_iter_next_gap() lib/interval_tree: skip the check before go to the right subtree lib/interval_tree: add test case for span iteration lib/interval_tree: add test case for interval_tree_iter_xxx() helpers lib/rbtree: add random seed lib/rbtree: split tests lib/rbtree: enable userland test suite for rbtree related data structure checkpatch: describe --min-conf-desc-length scripts/gdb/symbols: determine KASLR offset on s390 ...