Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Avoid writing an uninitialised stack variable to POR_EL0 on sigreturn
   if the poe_context record is absent

 - Reserve one more page for the early 4K-page kernel mapping to cover
   the extra [_text, _stext) split introduced by the non-executable
   read-only mapping

 - Force the arch_local_irq_*() wrappers to be __always_inline so that
   noinstr entry and idle paths cannot call out-of-line, instrumentable
   copies

 - Fix potential sign extension in the arm64 SCS unwinder's DWARF
   advance_loc4 decoding

 - Tolerate arm64 ACPI platforms with only WFI and no deeper PSCI idle
   states, restoring cpuidle registration on such systems

 - Include the UAPI <asm/ptrace.h> header in the arm64 GCS libc test
   rather than carrying a duplicate struct user_gcs definition (the
   original #ifdef NT_ARM_GCS was wrong to cover the structure
   definition as it would be masked out if the toolchain defined it)

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: signal: Preserve POR_EL0 if poe_context is missing
  arm64: Reserve an extra page for early kernel mapping
  kselftest/arm64: Include <asm/ptrace.h> for user_gcs definition
  ACPI: arm64: cpuidle: Tolerate platforms with no deep PSCI idle states
  arm64/irqflags: __always_inline the arch_local_irq_*() helpers
  arm64/scs: Fix potential sign extension issue of advance_loc4

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