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, 171 insertions, 0 deletions

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
new file mode 100644
index 000000000..cc108a75a
--- /dev/null
+++ b/drivers/clk/Makefile
@@ -0,0 +1,171 @@
+# SPDX-License-Identifier: GPL-2.0
+# common clock types
+obj-$(CONFIG_HAVE_CLK)		+= clk-devres.o clk-bulk.o clkdev.o
+obj-$(CONFIG_COMMON_CLK)	+= clk.o
+obj-$(CONFIG_CLK_KUNIT_TEST)	+= clk-test.o
+clk-test-y			:= clk_test.o \
+				   kunit_clk_assigned_rates_u64_one.dtbo.o \
+				   kunit_clk_assigned_rates_u64_one_consumer.dtbo.o \
+				   kunit_clk_assigned_rates_u64_multiple.dtbo.o \
+				   kunit_clk_assigned_rates_u64_multiple_consumer.dtbo.o \
+				   kunit_clk_assigned_rates_multiple.dtbo.o \
+				   kunit_clk_assigned_rates_multiple_consumer.dtbo.o \
+				   kunit_clk_assigned_rates_null.dtbo.o \
+				   kunit_clk_assigned_rates_null_consumer.dtbo.o \
+				   kunit_clk_assigned_rates_one.dtbo.o \
+				   kunit_clk_assigned_rates_one_consumer.dtbo.o \
+				   kunit_clk_assigned_rates_without.dtbo.o \
+				   kunit_clk_assigned_rates_without_consumer.dtbo.o \
+				   kunit_clk_assigned_rates_zero.dtbo.o \
+				   kunit_clk_assigned_rates_zero_consumer.dtbo.o \
+				   kunit_clk_hw_get_dev_of_node.dtbo.o \
+				   kunit_clk_parent_data_test.dtbo.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-divider.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-fixed-factor.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-fixed-rate.o
+obj-$(CONFIG_CLK_FIXED_RATE_KUNIT_TEST)	+= clk-fixed-rate-test.o
+clk-fixed-rate-test-y		:= clk-fixed-rate_test.o kunit_clk_fixed_rate_test.dtbo.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-gate.o
+obj-$(CONFIG_CLK_GATE_KUNIT_TEST) += clk-gate_test.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-multiplier.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-mux.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-composite.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-fractional-divider.o
+obj-$(CONFIG_CLK_FD_KUNIT_TEST) += clk-fractional-divider_test.o
+obj-$(CONFIG_COMMON_CLK)	+= clk-gpio.o
+ifeq ($(CONFIG_OF), y)
+obj-$(CONFIG_COMMON_CLK)	+= clk-conf.o
+endif
+
+# KUnit specific helpers
+ifeq ($(CONFIG_COMMON_CLK), y)
+obj-$(CONFIG_KUNIT)		+= clk_kunit_helpers.o
+endif
+
+# hardware specific clock types
+# please keep this section sorted lexicographically by file path name
+obj-$(CONFIG_COMMON_CLK_APPLE_NCO)  	+= clk-apple-nco.o
+obj-$(CONFIG_MACH_ASM9260)		+= clk-asm9260.o
+obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN)	+= clk-axi-clkgen.o
+obj-$(CONFIG_ARCH_AXXIA)		+= clk-axm5516.o
+obj-$(CONFIG_COMMON_CLK_BD718XX)	+= clk-bd718x7.o
+obj-$(CONFIG_COMMON_CLK_BM1880)		+= clk-bm1880.o
+obj-$(CONFIG_COMMON_CLK_CDCE706)	+= clk-cdce706.o
+obj-$(CONFIG_COMMON_CLK_CDCE925)	+= clk-cdce925.o
+obj-$(CONFIG_ARCH_CLPS711X)		+= clk-clps711x.o
+obj-$(CONFIG_COMMON_CLK_CS2000_CP)	+= clk-cs2000-cp.o
+obj-$(CONFIG_COMMON_CLK_EP93XX)		+= clk-ep93xx.o
+obj-$(CONFIG_ARCH_SPARX5)		+= clk-sparx5.o
+obj-$(CONFIG_COMMON_CLK_EN7523)		+= clk-en7523.o
+obj-$(CONFIG_COMMON_CLK_EYEQ)		+= clk-eyeq.o
+obj-$(CONFIG_COMMON_CLK_FIXED_MMIO)	+= clk-fixed-mmio.o
+obj-$(CONFIG_COMMON_CLK_FSL_FLEXSPI)	+= clk-fsl-flexspi.o
+obj-$(CONFIG_COMMON_CLK_FSL_SAI)	+= clk-fsl-sai.o
+obj-$(CONFIG_COMMON_CLK_GEMINI)		+= clk-gemini.o
+obj-$(CONFIG_ARCH_HIGHBANK)		+= clk-highbank.o
+obj-$(CONFIG_CLK_HSDK)			+= clk-hsdk-pll.o
+obj-$(CONFIG_COMMON_CLK_K210)		+= clk-k210.o
+obj-$(CONFIG_COMMON_CLK_K230)		+= clk-k230.o
+obj-$(CONFIG_LMK04832)			+= clk-lmk04832.o
+obj-$(CONFIG_COMMON_CLK_LAN966X)	+= clk-lan966x.o
+obj-$(CONFIG_COMMON_CLK_LOCHNAGAR)	+= clk-lochnagar.o
+obj-$(CONFIG_MACH_LOONGSON32)		+= clk-loongson1.o
+obj-$(CONFIG_COMMON_CLK_LOONGSON2)	+= clk-loongson2.o
+obj-$(CONFIG_COMMON_CLK_MAX77686)	+= clk-max77686.o
+obj-$(CONFIG_COMMON_CLK_MAX9485)	+= clk-max9485.o
+obj-$(CONFIG_ARCH_MILBEAUT_M10V)	+= clk-milbeaut.o
+obj-$(CONFIG_ARCH_MOXART)		+= clk-moxart.o
+obj-$(CONFIG_ARCH_NOMADIK)		+= clk-nomadik.o
+obj-$(CONFIG_ARCH_NPCM7XX)	    	+= clk-npcm7xx.o
+obj-$(CONFIG_COMMON_CLK_NPCM8XX)	+= clk-npcm8xx.o
+obj-$(CONFIG_ARCH_NSPIRE)		+= clk-nspire.o
+obj-$(CONFIG_COMMON_CLK_PALMAS)		+= clk-palmas.o
+obj-$(CONFIG_CLK_LS1028A_PLLDIG)	+= clk-plldig.o
+obj-$(CONFIG_COMMON_CLK_PWM)		+= clk-pwm.o
+obj-$(CONFIG_CLK_QORIQ)			+= clk-qoriq.o
+obj-$(CONFIG_COMMON_CLK_RK808)		+= clk-rk808.o
+obj-$(CONFIG_COMMON_CLK_RP1)            += clk-rp1.o
+obj-$(CONFIG_COMMON_CLK_RPMI)		+= clk-rpmi.o
+obj-$(CONFIG_COMMON_CLK_HI655X)		+= clk-hi655x.o
+obj-$(CONFIG_COMMON_CLK_S2MPS11)	+= clk-s2mps11.o
+obj-$(CONFIG_COMMON_CLK_SCMI)           += clk-scmi.o
+obj-$(CONFIG_COMMON_CLK_SCPI)           += clk-scpi.o
+obj-$(CONFIG_COMMON_CLK_SI5341)		+= clk-si5341.o
+obj-$(CONFIG_COMMON_CLK_SI5351)		+= clk-si5351.o
+obj-$(CONFIG_COMMON_CLK_SI514)		+= clk-si514.o
+obj-$(CONFIG_COMMON_CLK_SI544)		+= clk-si544.o
+obj-$(CONFIG_COMMON_CLK_SI570)		+= clk-si570.o
+obj-$(CONFIG_COMMON_CLK_SP7021)		+= clk-sp7021.o
+obj-$(CONFIG_COMMON_CLK_STM32F)		+= clk-stm32f4.o
+obj-$(CONFIG_COMMON_CLK_STM32H7)	+= clk-stm32h7.o
+obj-$(CONFIG_COMMON_CLK_TPS68470)      += clk-tps68470.o
+obj-$(CONFIG_CLK_TWL6040)		+= clk-twl6040.o
+obj-$(CONFIG_CLK_TWL)			+= clk-twl.o
+obj-$(CONFIG_ARCH_VT8500)		+= clk-vt8500.o
+obj-$(CONFIG_COMMON_CLK_RS9_PCIE)	+= clk-renesas-pcie.o
+obj-$(CONFIG_COMMON_CLK_SI521XX)	+= clk-si521xx.o
+obj-$(CONFIG_COMMON_CLK_VC3)		+= clk-versaclock3.o
+obj-$(CONFIG_COMMON_CLK_VC5)		+= clk-versaclock5.o
+obj-$(CONFIG_COMMON_CLK_VC7)		+= clk-versaclock7.o
+obj-$(CONFIG_COMMON_CLK_WM831X)		+= clk-wm831x.o
+obj-$(CONFIG_COMMON_CLK_XGENE)		+= clk-xgene.o
+
+# please keep this section sorted lexicographically by directory path name
+obj-y					+= actions/
+obj-y					+= analogbits/
+obj-y					+= aspeed/
+obj-$(CONFIG_COMMON_CLK_AT91)		+= at91/
+obj-$(CONFIG_ARCH_ARTPEC)		+= axis/
+obj-$(CONFIG_ARC_PLAT_AXS10X)		+= axs10x/
+obj-y					+= bcm/
+obj-$(CONFIG_ARCH_BERLIN)		+= berlin/
+obj-$(CONFIG_ARCH_DAVINCI)		+= davinci/
+obj-$(CONFIG_COMMON_CLK_ESWIN)		+= eswin/
+obj-$(CONFIG_ARCH_HISI)			+= hisilicon/
+obj-y					+= imgtec/
+obj-y					+= imx/
+obj-y					+= ingenic/
+obj-y					+= keystone/
+obj-y					+= mediatek/
+obj-$(CONFIG_ARCH_MESON)		+= meson/
+obj-y					+= microchip/
+ifeq ($(CONFIG_COMMON_CLK), y)
+obj-$(CONFIG_ARCH_MMP)			+= mmp/
+endif
+obj-y					+= mstar/
+obj-y					+= mvebu/
+obj-$(CONFIG_ARCH_MXS)			+= mxs/
+obj-$(CONFIG_ARCH_MA35)			+= nuvoton/
+obj-$(CONFIG_COMMON_CLK_NXP)		+= nxp/
+obj-$(CONFIG_COMMON_CLK_PISTACHIO)	+= pistachio/
+obj-$(CONFIG_COMMON_CLK_PXA)		+= pxa/
+obj-$(CONFIG_COMMON_CLK_QCOM)		+= qcom/
+obj-y					+= ralink/
+obj-y					+= renesas/
+obj-$(CONFIG_COMMON_CLK_ROCKCHIP)	+= rockchip/
+obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/
+obj-$(CONFIG_CLK_SIFIVE)		+= sifive/
+obj-y					+= socfpga/
+obj-y					+= sophgo/
+obj-y					+= spacemit/
+obj-$(CONFIG_PLAT_SPEAR)		+= spear/
+obj-y					+= sprd/
+obj-$(CONFIG_ARCH_STI)			+= st/
+obj-$(CONFIG_ARCH_STM32)		+= stm32/
+obj-y					+= starfive/
+obj-$(CONFIG_ARCH_SUNXI)		+= sunxi/
+obj-y					+= sunxi-ng/
+obj-$(CONFIG_ARCH_TEGRA)		+= tegra/
+obj-y					+= tenstorrent/
+obj-$(CONFIG_ARCH_THEAD)		+= thead/
+obj-y					+= ti/
+obj-$(CONFIG_CLK_UNIPHIER)		+= uniphier/
+obj-$(CONFIG_ARCH_U8500)		+= ux500/
+obj-y					+= versatile/
+obj-$(CONFIG_COMMON_CLK_VISCONTI)	+= visconti/
+ifeq ($(CONFIG_COMMON_CLK), y)
+obj-$(CONFIG_X86)			+= x86/
+endif
+obj-y					+= xilinx/
+obj-$(CONFIG_ARCH_ZYNQ)			+= zynq/
+obj-$(CONFIG_COMMON_CLK_ZYNQMP)         += zynqmp/