Commit 64275e9fda37 for kernel

commit 64275e9fda3702bfb5ab3b95f7c2b9b414667164
Merge: 787fe1d43a21 92860256402c
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Sat Feb 14 12:47:15 2026 -0800

    Merge tag 'loongarch-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

    Pull LoongArch updates from Huacai Chen:
     - Select HAVE_CMPXCHG_{LOCAL,DOUBLE}
     - Add 128-bit atomic cmpxchg support
     - Add HOTPLUG_SMT implementation
     - Wire up memfd_secret system call
     - Fix boot errors and unwind errors for KASAN
     - Use BPF prog pack allocator and add BPF arena support
     - Update dts files to add nand controllers
     - Some bug fixes and other small changes

    * tag 'loongarch-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
      LoongArch: dts: loongson-2k1000: Add nand controller support
      LoongArch: dts: loongson-2k0500: Add nand controller support
      LoongArch: BPF: Implement bpf_addr_space_cast instruction
      LoongArch: BPF: Implement PROBE_MEM32 pseudo instructions
      LoongArch: BPF: Use BPF prog pack allocator
      LoongArch: Use IS_ERR_PCPU() macro for KGDB
      LoongArch: Rework KASAN initialization for PTW-enabled systems
      LoongArch: Disable instrumentation for setup_ptwalker()
      LoongArch: Remove some extern variables in source files
      LoongArch: Guard percpu handler under !CONFIG_PREEMPT_RT
      LoongArch: Handle percpu handler address for ORC unwinder
      LoongArch: Use %px to print unmodified unwinding address
      LoongArch: Prefer top-down allocation after arch_mem_init()
      LoongArch: Add HOTPLUG_SMT implementation
      LoongArch: Make cpumask_of_node() robust against NUMA_NO_NODE
      LoongArch: Wire up memfd_secret system call
      LoongArch: Replace seq_printf() with seq_puts() for simple strings
      LoongArch: Add 128-bit atomic cmpxchg support
      LoongArch: Add detection for SC.Q support
      LoongArch: Select HAVE_CMPXCHG_LOCAL in Kconfig