[GIT PULL] arm64 fixes for 7.1-rc2

[Catalin Marinas <catalin.marinas@arm.com>]

Hi Linus,

Please pull the arm64 fixes below. Thanks.

The following changes since commit 254f49634ee16a731174d2ae34bc50bd5f45e731:

  Linux 7.1-rc1 (2026-04-26 14:19:00 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux tags/arm64-fixes

for you to fetch changes up to 030e8a40fff65ca6ac1c04a4d3c08afe72438922:

  arm64: signal: Preserve POR_EL0 if poe_context is missing (2026-05-01 17:44:25 +0100)

----------------------------------------------------------------
Assorted arm64, ACPI and kselftest fixes for 7.1-rc2:

 - 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)

----------------------------------------------------------------
Breno Leitao (2):
      arm64/irqflags: __always_inline the arch_local_irq_*() helpers
      ACPI: arm64: cpuidle: Tolerate platforms with no deep PSCI idle states

Kevin Brodsky (1):
      arm64: signal: Preserve POR_EL0 if poe_context is missing

Leo Yan (1):
      kselftest/arm64: Include <asm/ptrace.h> for user_gcs definition

Wentao Guan (1):
      arm64/scs: Fix potential sign extension issue of advance_loc4

Zhaoyang Huang (1):
      arm64: Reserve an extra page for early kernel mapping

 arch/arm64/include/asm/irqflags.h            | 14 ++++----
 arch/arm64/include/asm/kernel-pgtable.h      |  7 +++-
 arch/arm64/kernel/pi/patch-scs.c             |  4 +--
 arch/arm64/kernel/signal.c                   | 54 ++++++++++++++++++++++------
 drivers/acpi/arm64/cpuidle.c                 | 10 ++----
 tools/testing/selftests/arm64/gcs/gcs-util.h |  6 ----
 tools/testing/selftests/arm64/gcs/libc-gcs.c |  1 +
 7 files changed, 62 insertions(+), 34 deletions(-)

-- 
Catalin