Merge branch into tip/master: 'x86/urgent'

 # New commits in x86/urgent:
    dc84bc2a ("x86/mm/pat: Fix VM_PAT handling when fork() fails in copy_page_range()")
    878477a5 ("x86/fpu: Update the outdated comment above fpstate_init_user()")
    3181424a ("x86/early_printk: Add support for MMIO-based UARTs")
    2c118f50 ("x86/dumpstack: Fix inaccurate unwinding from exception stacks due to misplaced assignment")
    57e2428f ("x86/entry: Fix ORC unwinder for PUSH_REGS with save_ret=1")
    2704ad55 ("x86/Kconfig: Fix lists in X86_EXTENDED_PLATFORM help text")
    99bb1bd8 ("x86/Kconfig: Correct X86_X2APIC help text")
    c8c81458 ("x86/speculation: Remove the extra #ifdef around CALL_NOSPEC")
    de711563 ("x86/Kconfig: Document release year of glibc 2.3.3")
    d9f87802 ("x86/Kconfig: Make CONFIG_PCI_CNB20LE_QUIRK depend on X86_32")
    21d8fb8d ("x86/Kconfig: Document CONFIG_PCI_MMCONFIG")
    4047e877 ("x86/Kconfig: Update lists in X86_EXTENDED_PLATFORM")
    e35e328d ("x86/Kconfig: Move all X86_EXTENDED_PLATFORM options together")
    31be5041 ("x86/Kconfig: Always enable ARCH_SPARSEMEM_ENABLE")
    9232c49f ("x86/Kconfig: Enable X86_X2APIC by default and improve help text")

Signed-off-by: Ingo Molnar <mingo@kernel.org>