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, 76 insertions, 0 deletions

diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
new file mode 100644
index 000000000..fed47c767
--- /dev/null
+++ b/drivers/misc/Makefile
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for misc devices that really don't fit anywhere else.
+#
+
+obj-$(CONFIG_IBM_ASM)		+= ibmasm/
+obj-$(CONFIG_IBMVMC)		+= ibmvmc.o
+obj-$(CONFIG_AD525X_DPOT)	+= ad525x_dpot.o
+obj-$(CONFIG_AD525X_DPOT_I2C)	+= ad525x_dpot-i2c.o
+obj-$(CONFIG_AD525X_DPOT_SPI)	+= ad525x_dpot-spi.o
+obj-$(CONFIG_ATMEL_SSC)		+= atmel-ssc.o
+obj-$(CONFIG_DUMMY_IRQ)		+= dummy-irq.o
+obj-$(CONFIG_ICS932S401)	+= ics932s401.o
+obj-$(CONFIG_LKDTM)		+= lkdtm/
+obj-$(CONFIG_TI_FPC202)		+= ti_fpc202.o
+obj-$(CONFIG_TIFM_CORE)       	+= tifm_core.o
+obj-$(CONFIG_TIFM_7XX1)       	+= tifm_7xx1.o
+obj-$(CONFIG_PHANTOM)		+= phantom.o
+obj-$(CONFIG_RPMB)		+= rpmb-core.o
+obj-$(CONFIG_QCOM_COINCELL)	+= qcom-coincell.o
+obj-$(CONFIG_QCOM_FASTRPC)	+= fastrpc.o
+obj-$(CONFIG_SENSORS_BH1770)	+= bh1770glc.o
+obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
+obj-$(CONFIG_KGDB_TESTS)	+= kgdbts.o
+obj-$(CONFIG_SGI_XP)		+= sgi-xp/
+obj-$(CONFIG_SGI_GRU)		+= sgi-gru/
+obj-$(CONFIG_SMPRO_ERRMON)	+= smpro-errmon.o
+obj-$(CONFIG_SMPRO_MISC)	+= smpro-misc.o
+obj-$(CONFIG_CS5535_MFGPT)	+= cs5535-mfgpt.o
+obj-$(CONFIG_GEHC_ACHC)		+= gehc-achc.o
+obj-$(CONFIG_HP_ILO)		+= hpilo.o
+obj-$(CONFIG_APDS9802ALS)	+= apds9802als.o
+obj-$(CONFIG_ISL29003)		+= isl29003.o
+obj-$(CONFIG_ISL29020)		+= isl29020.o
+obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
+obj-$(CONFIG_DS1682)		+= ds1682.o
+obj-$(CONFIG_C2PORT)		+= c2port/
+obj-$(CONFIG_HMC6352)		+= hmc6352.o
+obj-y				+= eeprom/
+obj-y				+= cb710/
+obj-$(CONFIG_VMWARE_BALLOON)	+= vmw_balloon.o
+obj-$(CONFIG_PCH_PHUB)		+= pch_phub.o
+obj-y				+= lis3lv02d/
+obj-$(CONFIG_ALTERA_STAPL)	+=altera-stapl/
+obj-$(CONFIG_INTEL_MEI)		+= mei/
+obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
+obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
+obj-$(CONFIG_SRAM)		+= sram.o
+obj-$(CONFIG_SRAM_EXEC)		+= sram-exec.o
+obj-$(CONFIG_GENWQE)		+= genwqe/
+obj-$(CONFIG_DW_XDATA_PCIE)	+= dw-xdata-pcie.o
+obj-$(CONFIG_PCI_ENDPOINT_TEST)	+= pci_endpoint_test.o
+obj-$(CONFIG_OCXL)		+= ocxl/
+obj-$(CONFIG_BCM_VK)		+= bcm-vk/
+obj-y				+= cardreader/
+obj-$(CONFIG_PVPANIC)   	+= pvpanic/
+obj-$(CONFIG_UACCE)		+= uacce/
+obj-$(CONFIG_XILINX_SDFEC)	+= xilinx_sdfec.o
+obj-$(CONFIG_HISI_HIKEY_USB)	+= hisi_hikey_usb.o
+obj-$(CONFIG_NTSYNC)		+= ntsync.o
+obj-$(CONFIG_HI6421V600_IRQ)	+= hi6421v600-irq.o
+obj-$(CONFIG_OPEN_DICE)		+= open-dice.o
+obj-$(CONFIG_GP_PCI1XXXX)	+= mchp_pci1xxxx/
+obj-$(CONFIG_VCPU_STALL_DETECTOR)	+= vcpu_stall_detector.o
+obj-$(CONFIG_TMR_MANAGER)      += xilinx_tmr_manager.o
+obj-$(CONFIG_TMR_INJECT)	+= xilinx_tmr_inject.o
+obj-$(CONFIG_TPS6594_ESM)	+= tps6594-esm.o
+obj-$(CONFIG_TPS6594_PFSM)	+= tps6594-pfsm.o
+obj-$(CONFIG_NSM)		+= nsm.o
+obj-$(CONFIG_MARVELL_CN10K_DPI)	+= mrvl_cn10k_dpi.o
+lan966x-pci-objs		:= lan966x_pci.o
+lan966x-pci-objs		+= lan966x_pci.dtbo.o
+obj-$(CONFIG_MCHP_LAN966X_PCI)	+= lan966x-pci.o
+obj-y				+= keba/
+obj-y				+= amd-sbi/
+obj-$(CONFIG_MISC_RP1)		+= rp1/