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

Pull arm64 fixes from Will Deacon:
 "A pair of arm64 fixes for -rc3. The straightforward one is a fix to
  our firmware calling stub, which accidentally started corrupting the
  link register on machines with SVE. Since these machines don't really
  exist yet, it wasn't spotted in -next.

  The other fix is a revert-and-a-bit of a patch originally intended to
  allow PTE-level huge mappings for the VMAP area on 32-bit PPC 8xx. A
  side-effect of this change was that our pXd_set_huge() implementations
  could be replaced with generic dummy functions depending on the levels
  of page-table being used, which in turn broke the boot if we fail to
  create the linear mapping as a result of using these functions to
  operate on the pgd. Huge thanks to Michael Ellerman for modifying the
  revert so as not to regress PPC 8xx in terms of functionality.

  Anyway, that's the background and it's also available in the commit
  message along with Link tags pointing at all of the fun.

  Summary:

   - Fix hang when issuing SMC on SVE-capable system due to
     clobbered LR

   - Fix boot failure due to missing block mappings with folded
     page-table"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Revert "mm/pgtable: add stubs for {pmd/pub}_{set/clear}_huge"
  arm64: smccc: Save lr before calling __arm_smccc_sve_check()

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