Linus Torvalds 6183c65793 minmax: make generic MIN() and MAX() macros available everywhere ... [ Upstream commit 1a251f52cf ] This just standardizes the use of MIN() and MAX() macros, with the very traditional semantics. The goal is to use these for C constant expressions and for top-level / static initializers, and so be able to simplify the min()/max() macros. These macro names were used by various kernel code - they are very traditional, after all - and all such users have been fixed up, with a few different approaches: - trivial duplicated macro definitions have been removed Note that 'trivial' here means that it's obviously kernel code that already included all the major kernel headers, and thus gets the new generic MIN/MAX macros automatically. - non-trivial duplicated macro definitions are guarded with #ifndef This is the "yes, they define their own versions, but no, the include situation is not entirely obvious, and maybe they don't get the generic version automatically" case. - strange use case #1 A couple of drivers decided that the way they want to describe their versioning is with #define MAJ 1 #define MIN 2 #define DRV_VERSION __stringify(MAJ) "." __stringify(MIN) which adds zero value and I just did my Alexander the Great impersonation, and rewrote that pointless Gordian knot as #define DRV_VERSION "1.2" instead. - strange use case #2 A couple of drivers thought that it's a good idea to have a random 'MIN' or 'MAX' define for a value or index into a table, rather than the traditional macro that takes arguments. These values were re-written as C enum's instead. The new function-line macros only expand when followed by an open parenthesis, and thus don't clash with enum use. Happily, there weren't really all that many of these cases, and a lot of users already had the pattern of using '#ifndef' guarding (or in one case just using '#undef MIN') before defining their own private version that does the same thing. I left such cases alone. Cc: David Laight <David.Laight@aculab.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Eliav Farber <farbere@amazon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-10-02 13:42:55 +02:00
..
bpf	bpf: Reject bpf_timer for PREEMPT_RT	2025-10-02 13:42:50 +02:00
cgroup	cgroup: split cgroup_destroy_wq into 3 workqueues	2025-09-25 11:00:05 +02:00
configs	Kbuild updates for v6.6	2023-09-05 11:01:47 -07:00
debug	kdb: Use the passed prompt in kdb_position_cursor()	2024-08-03 08:54:34 +02:00
dma	dma/pool: Ensure DMA_DIRECT_REMAP allocations are decrypted	2025-09-04 15:30:27 +02:00
entry	entry: Respect changes to system call number by trace_sys_enter()	2024-04-03 15:28:50 +02:00
events	perf/core: Prevent VMA split of buffer mappings	2025-08-15 12:09:05 +02:00
futex	futex: Prevent use-after-free during requeue-PI	2025-10-02 13:42:52 +02:00
gcov	gcov: add support for GCC 14	2024-06-27 13:49:13 +02:00
irq	genirq: Make handle_enforce_irqctx() unconditionally available	2025-02-08 09:51:48 +01:00
kcsan	kcsan: test: Initialize dummy variable	2025-08-15 12:08:49 +02:00
livepatch	livepatch: Fix missing newline character in klp_resolve_symbols()	2023-11-20 11:59:25 +01:00
locking	locking/lockdep: Decrease nr_unused_locks if lock unused in zap_class()	2025-04-25 10:45:29 +02:00
module	module: Prevent silent truncation of module name in delete_module(2)	2025-08-28 16:28:28 +02:00
power	PM: sleep: console: Fix the black screen issue	2025-08-28 16:28:17 +02:00
printk	printk: Check CON_SUSPEND when unblanking a console	2025-06-04 14:42:00 +02:00
rcu	rcu-tasks: Maintain real-time response in rcu_tasks_postscan()	2025-09-19 16:32:03 +02:00
sched	sched: Fix sched_numa_find_nth_cpu() if mask offline	2025-09-09 18:56:26 +02:00
time	hrtimers: Unconditionally update target CPU base after offline timer migration	2025-09-19 16:32:07 +02:00
trace	minmax: make generic MIN() and MAX() macros available everywhere	2025-10-02 13:42:55 +02:00
.gitignore
acct.c	acct: block access to kernel internal filesystems	2025-02-27 04:10:52 -08:00
async.c	async: Introduce async_schedule_dev_nocall()	2024-01-31 16:18:49 -08:00
audit_fsnotify.c
audit_tree.c
audit_watch.c	audit: don't WARN_ON_ONCE(!current->mm) in audit_exe_compare()	2023-11-28 17:19:56 +00:00
audit.c	audit: Send netlink ACK before setting connection in auditd_set	2024-02-05 20:14:14 +00:00
audit.h	audit,module: restore audit logging in load failure case	2025-08-15 12:08:39 +02:00
auditfilter.c	ima: Avoid blocking in RCU read-side critical section	2024-07-11 12:49:18 +02:00
auditsc.c	audit,module: restore audit logging in load failure case	2025-08-15 12:08:39 +02:00
backtracetest.c
bounds.c	bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS	2024-05-02 16:32:50 +02:00
capability.c	lsm: constify the 'target' parameter in security_capget()	2023-08-08 16:48:47 -04:00
cfi.c
compat.c	sched_getaffinity: don't assume 'cpumask_size()' is fully initialized	2023-03-14 19:32:38 -07:00
configs.c
context_tracking.c	locking/atomic: treewide: use raw_atomic*_<op>()	2023-06-05 09:57:20 +02:00
cpu_pm.c
cpu.c	hrtimers: Handle CPU state correctly on hotplug	2025-01-23 17:21:17 +01:00
crash_core.c	mm: turn folio_test_hugetlb into a PageType	2024-05-02 16:32:47 +02:00
crash_dump.c
cred.c	cred: get rid of CONFIG_DEBUG_CREDENTIALS	2023-12-20 17:01:51 +01:00
delayacct.c	delayacct: track delays from IRQ/SOFTIRQ	2023-04-18 16:39:34 -07:00
dma.c
exec_domain.c
exit.c	perf: Fix sample vs do_exit()	2025-06-27 11:09:03 +01:00
extable.c
fail_function.c
fork.c	mm: drop the assumption that VM_SHARED always implies writable	2025-08-28 16:28:39 +02:00
freezer.c	sched,freezer: Remove unnecessary warning in __thaw_task	2025-08-15 12:09:07 +02:00
gen_kheaders.sh	kheaders: Ignore silly-rename files	2025-01-23 17:21:13 +01:00
groups.c
hung_task.c	kernel/hung_task.c: set some hung_task.c variables storage-class-specifier to static	2023-04-08 13:45:37 -07:00
iomem.c	kernel/iomem.c: remove __weak ioremap_cache helper	2023-08-21 13:37:28 -07:00
irq_work.c	trace: Add trace_ipi_send_cpu()	2023-03-24 11:01:29 +01:00
jump_label.c	jump_label: Fix static_key_slow_dec() yet again	2024-10-10 11:57:13 +02:00
kallsyms_internal.h
kallsyms_selftest.c	Modules changes for v6.6-rc1	2023-08-29 17:32:32 -07:00
kallsyms_selftest.h
kallsyms.c	kallsyms: Change func signature for cleanup_symbol_name()	2023-08-25 15:00:36 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.kexec	kexec: select CRYPTO from KEXEC_FILE instead of depending on it	2024-01-05 15:19:41 +01:00
Kconfig.locks
Kconfig.preempt
kcov.c	kcov: mark in_softirq_really() as __always_inline	2025-01-09 13:32:07 +01:00
kexec_core.c	kexec: do syscore_shutdown() in kernel_kexec	2024-01-31 16:18:56 -08:00
kexec_elf.c	kexec: initialize ELF lowest address to ULONG_MAX	2025-04-10 14:37:34 +02:00
kexec_file.c	kexec_file: fix elfcorehdr digest exclusion when CONFIG_CRASH_HOTPLUG=y	2024-09-12 11:11:27 +02:00
kexec_internal.h
kexec.c	kernel: kexec: copy user-array safely	2023-11-28 17:19:40 +00:00
kheaders.c	kheaders: Use array declaration instead of char	2023-03-24 20:10:59 -07:00
kprobes.c	kprobes: Fix to check symbol prefixes correctly	2024-08-14 13:58:51 +02:00
ksyms_common.c	kallsyms: make kallsyms_show_value() as generic function	2023-06-08 12:27:20 -07:00
ksysfs.c	crash: hotplug support for kexec_load()	2023-08-24 16:25:14 -07:00
kthread.c	kthread: unpark only parked kthread	2024-10-17 15:24:37 +02:00
latencytop.c
Makefile	kernel/numa.c: Move logging out of numa.h	2024-06-12 11:11:50 +02:00
module_signature.c
notifier.c	notifiers: add tracepoints to the notifiers infrastructure	2023-04-08 13:45:38 -07:00
nsproxy.c	nsproxy: Convert nsproxy.count to refcount_t	2023-08-21 11:29:12 -07:00
numa.c	kernel/numa.c: Move logging out of numa.h	2024-06-12 11:11:50 +02:00
padata.c	padata: do not leak refcount in reorder_work	2025-06-04 14:42:19 +02:00
panic.c	objtool, panic: Disable SMAP in __stack_chk_fail()	2025-05-02 07:50:55 +02:00
params.c	module: ensure that kobject_put() is safe for module type kobjects	2025-05-18 08:24:08 +02:00
pid_namespace.c	zap_pid_ns_processes: clear TIF_NOTIFY_SIGNAL along with TIF_SIGPENDING	2024-06-21 14:38:50 +02:00
pid_sysctl.h	memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy	2023-08-21 13:37:59 -07:00
pid.c	pidfd: prevent a kernel-doc warning	2023-09-19 13:21:33 -07:00
profile.c	profiling: remove profile=sleep support	2024-08-14 13:58:47 +02:00
ptrace.c	ptrace: Provide set/get interface for syscall user dispatch	2023-04-16 14:23:07 +02:00
range.c
reboot.c	kernel/reboot: emergency_restart: Set correct system_state	2023-11-28 17:20:04 +00:00
regset.c
relay.c	kernel: relay: remove unnecessary NULL values from relay_open_buf	2023-08-18 10:18:55 -07:00
resource_kunit.c
resource.c	resource: fix false warning in __request_region()	2025-08-01 09:47:31 +01:00
rseq.c	rseq: Fix segfault on registration when rseq_cs is non-zero	2025-07-17 18:35:22 +02:00
scftorture.c	scftorture: Pause testing after memory-allocation failure	2023-07-14 15:02:57 -07:00
scs.c
seccomp.c	seccomp: Add missing kerndoc notations	2023-08-17 12:32:15 -07:00
signal.c	posix-timers: Target group sigqueue to current task only if not exiting	2024-12-09 10:33:11 +01:00
smp.c	smp: Add missing destroy_work_on_stack() call in smp_call_on_cpu()	2024-09-12 11:11:37 +02:00
smpboot.c	kthread: add kthread_stop_put	2024-06-12 11:12:52 +02:00
smpboot.h
softirq.c	lockdep: Fix wait context check on softirq for PREEMPT_RT	2025-06-04 14:41:55 +02:00
stackleak.c	stackleak: allow to specify arch specific stackleak poison function	2023-04-20 11:36:35 +02:00
stacktrace.c
static_call_inline.c	x86/static-call: provide a way to do very early static-call updates	2024-12-19 18:11:36 +01:00
static_call.c
stop_machine.c
sys_ni.c	syscalls: fix compat_sys_io_pgetevents_time64 usage	2024-07-05 09:34:04 +02:00
sys.c	hrtimer: Use and report correct timerslack values for realtime tasks	2025-03-22 12:50:37 -07:00
sysctl-test.c
sysctl.c	v6.5-rc1-sysctl-next	2023-06-28 16:05:21 -07:00
task_work.c	task_work: make TWA_NMI_CURRENT handling conditional on IRQ_WORK	2024-11-01 01:58:34 +01:00
taskstats.c
torture.c	rcutorture: Fix stuttering races and other issues	2023-11-28 17:20:08 +00:00
tracepoint.c
tsacct.c
ucount.c	ucount: fix atomic_long_inc_below() argument type	2025-08-15 12:08:57 +02:00
uid16.c
uid16.h
umh.c	sysctl: fix unused proc_cap_handler() function warning	2023-06-29 15:19:43 -07:00
up.c
user_namespace.c
user-return-notifier.c
user.c
usermode_driver.c
utsname_sysctl.c	utsname: simplify one-level sysctl registration for uts_kern_table	2023-04-13 11:49:35 -07:00
utsname.c
vhost_task.c	vhost: Take a reference on the task in struct vhost_task.	2025-10-02 13:42:51 +02:00
watch_queue.c	watch_queue: fix pipe accounting mismatch	2025-04-10 14:37:25 +02:00
watchdog_buddy.c	watchdog/hardlockup: move SMP barriers from common code to buddy code	2023-06-19 16:25:28 -07:00
watchdog_perf.c	watchdog/perf: properly initialize the turbo mode timestamp and rearm counter	2024-08-03 08:54:29 +02:00
watchdog.c	watchdog: fix watchdog may detect false positive of softlockup	2025-06-27 11:08:49 +01:00
workqueue_internal.h	workqueue: Drop the special locking rule for worker->flags and worker_pool->flags	2023-08-07 15:57:22 -10:00
workqueue.c	workqueue: Do not warn when cancelling WQ_MEM_RECLAIM work from !WQ_MEM_RECLAIM worker	2025-01-17 13:36:25 +01:00