Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEADgrafted

Changes:

Make expedited grace periods expedite normal RCU callbacks

Miscellaneous fixes:
 * Improve diagnostic output with character task states.
 * Mark accesses to inform KCSAN of concurrency design.
 * Move from kmalloc() to kmalloc_obj().
 * Documentation updates.
 * Improve handling of RCU deferred quiescent states.
 * Clean up unused function arguments and structure fields.
 * Reduce show_rcu_gp_kthreads() stack space.

Tasks RCU updates:
 * Clean up after SRCU re-implementation of Tasks Trace RCU.
 * Mark accesses to inform KCSAN of concurrency design.
 * Add ->lazy_timer status to diagnostic output.
 * Remove an unnecessary memory barrier.
 * Fix a data race, courtesy of KCSAN.
 * Documentation updates.
 * Convert cond_resched_tasks_rcu_qs() from macro to static inline
   function.

SRCU updates:
 * Add Rust helpers for SRCU.
 * Avoid losing queued work at cleanup_srcu_struct() time.

Torture-test updates:
 * Preparation work for immediate RCU priority deboosting.
 * Test RCU readers from real interrupt handlers (as opposed to softirq).
 * Simplify code through use of cpumask_next_wrap().
 * Improve diagnostic output with character task states.
 * Add rcutorture.nwriters parameter to allow lightweight stall testing,
   and rcutorture.stall_only to make doing so easier.
 * Test an RCU Tasks Trace grace period implying an RCU grace period.
 * Make RCU Tasks Trace torturing track reader batches.
 * Fix a data race, courtesy of KCSAN.
 * Plug a shuffle_tmp_mask memory leak on kthread spawn failure.

1 files changed, 66 insertions, 0 deletions

diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
new file mode 100644
index 000000000..712edcb3e
--- /dev/null
+++ b/drivers/macintosh/Makefile
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Macintosh-specific device drivers.
+#
+
+# Each configuration option enables a list of files.
+
+obj-$(CONFIG_PPC_PMAC)		+= macio_asic.o macio_sysfs.o
+
+obj-$(CONFIG_PMAC_MEDIABAY)	+= mediabay.o
+obj-$(CONFIG_MAC_EMUMOUSEBTN)	+= mac_hid.o
+obj-$(CONFIG_INPUT_ADBHID)	+= adbhid.o
+obj-$(CONFIG_ANSLCD)		+= ans-lcd.o
+
+obj-$(CONFIG_ADB_PMU)		+= via-pmu.o
+obj-$(CONFIG_ADB_PMU_EVENT)	+= via-pmu-event.o
+obj-$(CONFIG_ADB_PMU_LED)	+= via-pmu-led.o
+obj-$(CONFIG_PMAC_BACKLIGHT)	+= via-pmu-backlight.o
+obj-$(CONFIG_ADB_CUDA)		+= via-cuda.o
+obj-$(CONFIG_PMAC_APM_EMU)	+= apm_emu.o
+obj-$(CONFIG_PMAC_SMU)		+= smu.o
+
+obj-$(CONFIG_ADB)		+= adb.o
+obj-$(CONFIG_ADB_MACII)		+= via-macii.o
+obj-$(CONFIG_ADB_IOP)		+= adb-iop.o
+obj-$(CONFIG_ADB_MACIO)		+= macio-adb.o
+
+obj-$(CONFIG_THERM_WINDTUNNEL)	+= therm_windtunnel.o
+obj-$(CONFIG_THERM_ADT746X)	+= therm_adt746x.o
+obj-$(CONFIG_WINDFARM)	        += windfarm_core.o
+obj-$(CONFIG_WINDFARM_PM72)     += windfarm_fcu_controls.o \
+				   windfarm_ad7417_sensor.o \
+				   windfarm_lm75_sensor.o \
+				   windfarm_max6690_sensor.o \
+				   windfarm_pid.o \
+				   windfarm_cpufreq_clamp.o \
+				   windfarm_pm72.o
+obj-$(CONFIG_WINDFARM_RM31)     += windfarm_fcu_controls.o \
+				   windfarm_ad7417_sensor.o \
+				   windfarm_lm75_sensor.o \
+				   windfarm_lm87_sensor.o \
+				   windfarm_max6690_sensor.o \
+				   windfarm_pid.o \
+				   windfarm_cpufreq_clamp.o \
+				   windfarm_rm31.o
+obj-$(CONFIG_WINDFARM_PM81)     += windfarm_smu_controls.o \
+				   windfarm_smu_sensors.o \
+				   windfarm_lm75_sensor.o windfarm_pid.o \
+				   windfarm_cpufreq_clamp.o windfarm_pm81.o
+obj-$(CONFIG_WINDFARM_PM91)     += windfarm_smu_controls.o \
+				   windfarm_smu_sensors.o \
+				   windfarm_lm75_sensor.o windfarm_pid.o \
+				   windfarm_cpufreq_clamp.o windfarm_pm91.o
+obj-$(CONFIG_WINDFARM_PM112)	+= windfarm_pm112.o windfarm_smu_sat.o \
+				   windfarm_smu_controls.o \
+				   windfarm_smu_sensors.o \
+				   windfarm_max6690_sensor.o \
+				   windfarm_lm75_sensor.o windfarm_pid.o
+obj-$(CONFIG_WINDFARM_PM121)	+= windfarm_pm121.o windfarm_smu_sat.o \
+				   windfarm_smu_controls.o \
+				   windfarm_smu_sensors.o \
+				   windfarm_max6690_sensor.o \
+				   windfarm_lm75_sensor.o windfarm_pid.o
+obj-$(CONFIG_PMAC_RACKMETER)	+= rack-meter.o
+
+obj-$(CONFIG_SENSORS_AMS)	+= ams/