• Linus Torvalds's avatar
    Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 9fb71c2f
    Linus Torvalds authored
    Pull x86 fixes from Thomas Gleixner:
     "A set of fixes and updates for x86:
       - Address a swiotlb regression which was caused by the recent DMA
         rework and made driver fail because dma_direct_supported() returned
       - Fix a signedness bug in the APIC ID validation which caused invalid
         APIC IDs to be detected as valid thereby bloating the CPU possible
       - Fix inconsisten config dependcy/select magic for the MFD_CS5535
       - Fix a corruption of the physical address space bits when encryption
         has reduced the address space and late cpuinfo updates overwrite
         the reduced bit information with the original value.
       - Dominiks syscall rework which consolidates the architecture
         specific syscall functions so all syscalls can be wrapped with the
         same macros. This allows to switch x86/64 to struct pt_regs based
         syscalls. Extend the clearing of user space controlled registers in
         the entry patch to the lower registers"
    * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
      x86/apic: Fix signedness bug in APIC ID validity checks
      x86/cpu: Prevent cpuinfo_x86::x86_phys_bits adjustment corruption
      x86/olpc: Fix inconsistent MFD_CS5535 configuration
      swiotlb: Use dma_direct_supported() for swiotlb_ops
      syscalls/x86: Adapt syscall_wrapper.h to the new syscall stub naming convention
      syscalls/core, syscalls/x86: Rename struct pt_regs-based sys_*() to __x64_sys_*()
      syscalls/core, syscalls/x86: Clean up compat syscall stub naming convention
      syscalls/core, syscalls/x86: Clean up syscall stub naming convention
      syscalls/x86: Extend register clearing on syscall entry to lower registers
      syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64
      syscalls/x86: Use 'struct pt_regs' based syscall calling for IA32_EMULATION and x32
      syscalls/core: Prepare CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y for compat syscalls
      syscalls/x86: Use 'struct pt_regs' based syscall calling convention for 64-bit syscalls
      syscalls/core: Introduce CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
      x86/syscalls: Don't pointlessly reload the system call number
      x86/mm: Fix documentation of module mapping range with 4-level paging
      x86/cpuid: Switch to 'static const' specifier
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